diff --git a/Documentation/devicetree/bindings/crypto/qcom,inline-crypto-engine.yaml b/Documentation/devicetree/bindings/crypto/qcom,inline-crypto-engine.yaml
index 7da9aa82d8374e..69731ff62c6530 100644
--- a/Documentation/devicetree/bindings/crypto/qcom,inline-crypto-engine.yaml
+++ b/Documentation/devicetree/bindings/crypto/qcom,inline-crypto-engine.yaml
@@ -21,6 +21,16 @@ properties:
     maxItems: 1
 
   clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: core
+      - const: iface
+
+  power-domains:
     maxItems: 1
 
 required:
@@ -38,6 +48,10 @@ examples:
       compatible = "qcom,sm8550-inline-crypto-engine",
                    "qcom,inline-crypto-engine";
       reg = <0x01d88000 0x8000>;
-      clocks = <&gcc GCC_UFS_PHY_ICE_CORE_CLK>;
+      clocks = <&gcc GCC_UFS_PHY_ICE_CORE_CLK>,
+               <&gcc GCC_UFS_PHY_AHB_CLK>;
+      clock-names = "core",
+                    "iface";
+      power-domains = <&gcc UFS_PHY_GDSC>;
     };
 ...
diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index 8be086b3f8297a..3fe1711dd587c2 100644
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -426,6 +426,7 @@ REGULATOR
   devm_regulator_bulk_put()
   devm_regulator_get()
   devm_regulator_get_enable()
+  devm_regulator_get_enable_read_voltage()
   devm_regulator_get_enable_optional()
   devm_regulator_get_exclusive()
   devm_regulator_get_optional()
diff --git a/Makefile b/Makefile
index 05c17f548757ae..13d82f5eefd264 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 6
 PATCHLEVEL = 6
-SUBLEVEL = 151
+SUBLEVEL = 152
 EXTRAVERSION =
 NAME = Pinguïn Aangedreven
 
diff --git a/arch/arm/boot/dts/broadcom/bcm-ns.dtsi b/arch/arm/boot/dts/broadcom/bcm-ns.dtsi
index 88fda18af1f8e6..06acd72f9835a5 100644
--- a/arch/arm/boot/dts/broadcom/bcm-ns.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm-ns.dtsi
@@ -131,7 +131,7 @@
 
 			/* PCIe Controller 2 */
 			<0x00014000 0 &gic GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
-			<0x00014000 1 &gic GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
+			<0x00014000 1 &gic GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>,
 			<0x00014000 2 &gic GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
 			<0x00014000 3 &gic GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
 			<0x00014000 4 &gic GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/arch/arm/mach-npcm/platsmp.c b/arch/arm/mach-npcm/platsmp.c
index 41891d3aa1247d..4c1fc9983746ce 100644
--- a/arch/arm/mach-npcm/platsmp.c
+++ b/arch/arm/mach-npcm/platsmp.c
@@ -32,6 +32,7 @@ static int npcm7xx_smp_boot_secondary(unsigned int cpu,
 		goto out;
 	}
 	gcr_base = of_iomap(gcr_np, 0);
+	of_node_put(gcr_np);
 	if (!gcr_base) {
 		pr_err("could not iomap gcr");
 		ret = -ENOMEM;
@@ -60,6 +61,7 @@ static void __init npcm7xx_smp_prepare_cpus(unsigned int max_cpus)
 		return;
 	}
 	scu_base = of_iomap(scu_np, 0);
+	of_node_put(scu_np);
 	if (!scu_base) {
 		pr_err("could not iomap scu");
 		return;
diff --git a/arch/s390/kvm/pci.c b/arch/s390/kvm/pci.c
index 17fedfc7bb9904..d9fcbf41025e0c 100644
--- a/arch/s390/kvm/pci.c
+++ b/arch/s390/kvm/pci.c
@@ -167,7 +167,7 @@ static int kvm_zpci_set_airq(struct zpci_dev *zdev)
 	fib.fmt0.noi = airq_iv_end(zdev->aibv);
 	fib.fmt0.aibv = virt_to_phys(zdev->aibv->vector);
 	fib.fmt0.aibvo = 0;
-	fib.fmt0.aisb = virt_to_phys(aift->sbv->vector + (zdev->aisb / 64) * 8);
+	fib.fmt0.aisb = virt_to_phys(aift->sbv->vector) + (zdev->aisb / 64) * 8;
 	fib.fmt0.aisbo = zdev->aisb & 63;
 	fib.gd = zdev->gisa;
 
@@ -191,34 +191,54 @@ static int kvm_zpci_clear_airq(struct zpci_dev *zdev)
 	return cc ? -EIO : 0;
 }
 
-static inline void unaccount_mem(unsigned long nr_pages)
+static inline void unaccount_mem(struct kvm_zdev *kzdev, unsigned long nr_pages)
 {
-	struct user_struct *user = get_uid(current_user());
+	struct user_struct *user = kzdev->user_account;
+	struct mm_struct *mm_account = kzdev->mm_account;
 
-	if (user)
+	if (user) {
 		atomic_long_sub(nr_pages, &user->locked_vm);
-	if (current->mm)
-		atomic64_sub(nr_pages, &current->mm->pinned_vm);
+		free_uid(user);
+		kzdev->user_account = NULL;
+	}
+
+	if (mm_account) {
+		atomic64_sub(nr_pages, &mm_account->pinned_vm);
+		mmdrop(mm_account);
+		kzdev->mm_account = NULL;
+	}
 }
 
-static inline int account_mem(unsigned long nr_pages)
+static inline int account_mem(struct kvm_zdev *kzdev, unsigned long nr_pages)
 {
 	struct user_struct *user = get_uid(current_user());
 	unsigned long page_limit, cur_pages, new_pages;
+	int rc = 0;
 
 	page_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT;
 
+	cur_pages = atomic_long_read(&user->locked_vm);
 	do {
-		cur_pages = atomic_long_read(&user->locked_vm);
 		new_pages = cur_pages + nr_pages;
-		if (new_pages > page_limit)
-			return -ENOMEM;
-	} while (atomic_long_cmpxchg(&user->locked_vm, cur_pages,
-					new_pages) != cur_pages);
+		if (new_pages > page_limit) {
+			rc = -ENOMEM;
+			goto out;
+		}
+	} while (!atomic_long_try_cmpxchg(&user->locked_vm, &cur_pages, new_pages));
 
-	atomic64_add(nr_pages, &current->mm->pinned_vm);
+	if (current->mm) {
+		mmgrab(current->mm);
+		atomic64_add(nr_pages, &current->mm->pinned_vm);
+	}
+
+	kzdev->user_account = user;
+	kzdev->mm_account = current->mm;
 
 	return 0;
+
+out:
+	free_uid(user);
+	return rc;
 }
 
 static int kvm_s390_pci_aif_enable(struct zpci_dev *zdev, struct zpci_fib *fib,
@@ -295,14 +315,17 @@ static int kvm_s390_pci_aif_enable(struct zpci_dev *zdev, struct zpci_fib *fib,
 	}
 
 	/* Account for pinned pages, roll back on failure */
-	if (account_mem(pcount))
+	rc = account_mem(zdev->kzdev, pcount);
+	if (rc)
 		goto unpin2;
 
 	/* AISB must be allocated before we can fill in GAITE */
 	mutex_lock(&aift->aift_lock);
 	bit = airq_iv_alloc_bit(aift->sbv);
-	if (bit == -1UL)
+	if (bit == -1UL) {
+		rc = -ENOMEM;
 		goto unlock;
+	}
 	zdev->aisb = bit; /* store the summary bit number */
 	zdev->aibv = airq_iv_create(msi_vecs, AIRQ_IV_DATA |
 				    AIRQ_IV_BITLOCK |
@@ -336,24 +359,39 @@ static int kvm_s390_pci_aif_enable(struct zpci_dev *zdev, struct zpci_fib *fib,
 	aift->kzdev[zdev->aisb] = zdev->kzdev;
 	spin_unlock_irq(&aift->gait_lock);
 
-	/* Update guest FIB for re-issue */
-	fib->fmt0.aisbo = zdev->aisb & 63;
-	fib->fmt0.aisb = virt_to_phys(aift->sbv->vector + (zdev->aisb / 64) * 8);
-	fib->fmt0.isc = gisc;
-
 	/* Save some guest fib values in the host for later use */
-	zdev->kzdev->fib.fmt0.isc = fib->fmt0.isc;
+	zdev->kzdev->fib.fmt0.isc = gisc;
 	zdev->kzdev->fib.fmt0.aibv = fib->fmt0.aibv;
-	mutex_unlock(&aift->aift_lock);
 
 	/* Issue the clp to setup the irq now */
 	rc = kvm_zpci_set_airq(zdev);
-	return rc;
+	if (!rc) {
+		mutex_unlock(&aift->aift_lock);
+		return rc;
+	}
+
+	/* Start cleanup */
+	zdev->kzdev->fib.fmt0.isc = 0;
+	zdev->kzdev->fib.fmt0.aibv = 0;
+
+	spin_lock_irq(&aift->gait_lock);
+	gaite->count--;
+	gaite->aisb = 0;
+	gaite->gisc = 0;
+	gaite->aisbo = 0;
+	gaite->gisa = 0;
+	aift->kzdev[zdev->aisb] = NULL;
+	spin_unlock_irq(&aift->gait_lock);
+
+	airq_iv_release(zdev->aibv);
+	zdev->aibv = NULL;
 
 free_aisb:
 	airq_iv_free_bit(aift->sbv, zdev->aisb);
 	zdev->aisb = 0;
 unlock:
+	if (pcount > 0)
+		unaccount_mem(zdev->kzdev, pcount);
 	mutex_unlock(&aift->aift_lock);
 unpin2:
 	if (fib->fmt0.sum == 1)
@@ -424,7 +462,7 @@ static int kvm_s390_pci_aif_disable(struct zpci_dev *zdev, bool force)
 		pcount++;
 	}
 	if (pcount > 0)
-		unaccount_mem(pcount);
+		unaccount_mem(kzdev, pcount);
 out:
 	mutex_unlock(&aift->aift_lock);
 
diff --git a/arch/s390/kvm/pci.h b/arch/s390/kvm/pci.h
index ff0972dd5e71dc..fdf8c7bf4ed082 100644
--- a/arch/s390/kvm/pci.h
+++ b/arch/s390/kvm/pci.h
@@ -22,6 +22,8 @@ struct kvm_zdev {
 	struct kvm *kvm;
 	struct zpci_fib fib;
 	struct list_head entry;
+	struct user_struct *user_account;
+	struct mm_struct *mm_account;
 };
 
 struct zpci_gaite {
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 6c4b588d557fcf..50a8c5701084f1 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -2299,6 +2299,9 @@ static union kvm_mmu_page_role kvm_mmu_child_role(u64 *sptep, bool direct,
 	role.direct = direct;
 	role.passthrough = 0;
 
+	WARN_ON_ONCE(role.invalid);
+	role.invalid = 0;
+
 	/*
 	 * If the guest has 4-byte PTEs then that means it's using 32-bit,
 	 * 2-level, non-PAE paging. KVM shadows such guests with PAE paging
diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c
index 93882e976ede45..2a5ce46af5a0ac 100644
--- a/drivers/ata/pata_sl82c105.c
+++ b/drivers/ata/pata_sl82c105.c
@@ -264,6 +264,7 @@ static struct ata_port_operations sl82c105_port_ops = {
 static int sl82c105_bridge_revision(struct pci_dev *pdev)
 {
 	struct pci_dev *bridge;
+	u8 revision;
 
 	/*
 	 * The bridge should be part of the same device, but function 0.
@@ -285,8 +286,9 @@ static int sl82c105_bridge_revision(struct pci_dev *pdev)
 	/*
 	 * We need to find function 0's revision, not function 1
 	 */
+	revision = bridge->revision;
 	pci_dev_put(bridge);
-	return bridge->revision;
+	return revision;
 }
 
 static void sl82c105_fixup(struct pci_dev *pdev)
diff --git a/drivers/counter/microchip-tcb-capture.c b/drivers/counter/microchip-tcb-capture.c
index 461f57f66631c3..fbd1afe178a366 100644
--- a/drivers/counter/microchip-tcb-capture.c
+++ b/drivers/counter/microchip-tcb-capture.c
@@ -309,7 +309,7 @@ static int mchp_tc_probe(struct platform_device *pdev)
 	char clk_name[7];
 	struct regmap *regmap;
 	struct clk *clk[3];
-	int channel;
+	u32 channel;
 	int ret, i;
 
 	counter = devm_counter_alloc(&pdev->dev, sizeof(*priv));
@@ -343,7 +343,7 @@ static int mchp_tc_probe(struct platform_device *pdev)
 
 		priv->channel[i] = channel;
 
-		snprintf(clk_name, sizeof(clk_name), "t%d_clk", channel);
+		snprintf(clk_name, sizeof(clk_name), "t%u_clk", channel);
 
 		clk[i] = of_clk_get_by_name(np->parent, clk_name);
 		if (IS_ERR(clk[i])) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 5eea14076a9292..8672838fb67cad 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3977,6 +3977,8 @@ static void amdgpu_device_unmap_mmio(struct amdgpu_device *adev)
 
 	iounmap(adev->rmmio);
 	adev->rmmio = NULL;
+	if (adev->mman.aper_base_kaddr)
+		iounmap(adev->mman.aper_base_kaddr);
 	adev->mman.aper_base_kaddr = NULL;
 
 	/* Memory manager related */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 1499638182bc24..df23a77a07d639 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -1887,23 +1887,17 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
 	/* Change the size here instead of the init above so only lpfn is affected */
 	amdgpu_ttm_set_buffer_funcs_status(adev, false);
 #ifdef CONFIG_64BIT
-	if (adev->gmc.xgmi.connected_to_cpu) {
-		void *kaddr = devm_memremap(adev->dev, adev->gmc.aper_base,
-					    adev->gmc.visible_vram_size,
-					    MEMREMAP_WB);
-		if (IS_ERR(kaddr))
-			return PTR_ERR(kaddr);
-		adev->mman.aper_base_kaddr = (__force void __iomem *)kaddr;
-	} else if (adev->gmc.is_app_apu) {
+#ifdef CONFIG_X86
+	if (adev->gmc.xgmi.connected_to_cpu)
+		adev->mman.aper_base_kaddr = ioremap_cache(adev->gmc.aper_base,
+				adev->gmc.visible_vram_size);
+	else if (adev->gmc.is_app_apu)
 		DRM_DEBUG_DRIVER(
 			"No need to ioremap when real vram size is 0\n");
-	} else {
-		adev->mman.aper_base_kaddr = devm_ioremap_wc(adev->dev,
-							     adev->gmc.aper_base,
-							     adev->gmc.visible_vram_size);
-		if (!adev->mman.aper_base_kaddr)
-			return -ENOMEM;
-	}
+	else
+#endif
+		adev->mman.aper_base_kaddr = ioremap_wc(adev->gmc.aper_base,
+				adev->gmc.visible_vram_size);
 #endif
 
 	/*
@@ -2050,6 +2044,8 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
  */
 void amdgpu_ttm_fini(struct amdgpu_device *adev)
 {
+	int idx;
+
 	if (!adev->mman.initialized)
 		return;
 
@@ -2072,7 +2068,14 @@ void amdgpu_ttm_fini(struct amdgpu_device *adev)
 	amdgpu_ttm_fw_reserve_vram_fini(adev);
 	amdgpu_ttm_drv_reserve_vram_fini(adev);
 
-	adev->mman.aper_base_kaddr = NULL;
+	if (drm_dev_enter(adev_to_drm(adev), &idx)) {
+
+		if (adev->mman.aper_base_kaddr)
+			iounmap(adev->mman.aper_base_kaddr);
+		adev->mman.aper_base_kaddr = NULL;
+
+		drm_dev_exit(idx);
+	}
 
 	amdgpu_vram_mgr_fini(adev);
 	amdgpu_gtt_mgr_fini(adev);
diff --git a/drivers/gpu/drm/bridge/parade-ps8640.c b/drivers/gpu/drm/bridge/parade-ps8640.c
index 14d4dcf239da83..61ea855e55d879 100644
--- a/drivers/gpu/drm/bridge/parade-ps8640.c
+++ b/drivers/gpu/drm/bridge/parade-ps8640.c
@@ -258,8 +258,14 @@ static ssize_t ps8640_aux_transfer_msg(struct drm_dp_aux *aux,
 	addr_len[PAGE0_SWAUX_LENGTH - base] = (len == 0) ? SWAUX_NO_PAYLOAD :
 					      ((len - 1) & SWAUX_LENGTH_MASK);
 
-	regmap_bulk_write(map, PAGE0_SWAUX_ADDR_7_0, addr_len,
-			  ARRAY_SIZE(addr_len));
+	ret = regmap_bulk_write(map, PAGE0_SWAUX_ADDR_7_0, addr_len,
+				ARRAY_SIZE(addr_len));
+	if (ret) {
+		DRM_DEV_ERROR(dev,
+			      "failed to write AUX address %#x, len %zu: %d\n",
+			      msg->address, len, ret);
+		return ret;
+	}
 
 	if (len && (request == DP_AUX_NATIVE_WRITE ||
 		    request == DP_AUX_I2C_WRITE)) {
@@ -275,13 +281,22 @@ static ssize_t ps8640_aux_transfer_msg(struct drm_dp_aux *aux,
 		}
 	}
 
-	regmap_write(map, PAGE0_SWAUX_CTRL, SWAUX_SEND);
+	ret = regmap_write(map, PAGE0_SWAUX_CTRL, SWAUX_SEND);
+	if (ret) {
+		DRM_DEV_ERROR(dev, "failed to start AUX transfer: %d\n", ret);
+		return ret;
+	}
 
 	/* Zero delay loop because i2c transactions are slow already */
-	regmap_read_poll_timeout(map, PAGE0_SWAUX_CTRL, data,
-				 !(data & SWAUX_SEND), 0, 50 * 1000);
+	ret = regmap_read_poll_timeout(map, PAGE0_SWAUX_CTRL, data,
+				       !(data & SWAUX_SEND), 0, 50 * 1000);
+	if (ret) {
+		DRM_DEV_ERROR(dev, "failed to complete AUX transfer: %d\n",
+			      ret);
+		return ret;
+	}
 
-	regmap_read(map, PAGE0_SWAUX_STATUS, &data);
+	ret = regmap_read(map, PAGE0_SWAUX_STATUS, &data);
 	if (ret) {
 		DRM_DEV_ERROR(dev, "failed to read PAGE0_SWAUX_STATUS: %d\n",
 			      ret);
diff --git a/drivers/hwmon/ads7828.c b/drivers/hwmon/ads7828.c
index 809e830f52a6bf..b9ed146a24cc1a 100644
--- a/drivers/hwmon/ads7828.c
+++ b/drivers/hwmon/ads7828.c
@@ -108,12 +108,11 @@ static int ads7828_probe(struct i2c_client *client)
 	struct ads7828_data *data;
 	struct device *hwmon_dev;
 	unsigned int vref_mv = ADS7828_INT_VREF_MV;
-	unsigned int vref_uv;
+	int vref_uv;
 	bool diff_input = false;
 	bool ext_vref = false;
 	unsigned int regval;
 	enum ads7828_chips chip;
-	struct regulator *reg;
 
 	data = devm_kzalloc(dev, sizeof(struct ads7828_data), GFP_KERNEL);
 	if (!data)
@@ -127,9 +126,11 @@ static int ads7828_probe(struct i2c_client *client)
 	} else if (dev->of_node) {
 		diff_input = of_property_read_bool(dev->of_node,
 						   "ti,differential-input");
-		reg = devm_regulator_get_optional(dev, "vref");
-		if (!IS_ERR(reg)) {
-			vref_uv = regulator_get_voltage(reg);
+		vref_uv = devm_regulator_get_enable_read_voltage(dev, "vref");
+		if (vref_uv < 0) {
+			if (vref_uv != -ENODEV)
+				return vref_uv;
+		} else {
 			vref_mv = DIV_ROUND_CLOSEST(vref_uv, 1000);
 			if (vref_mv < ADS7828_EXT_VREF_MV_MIN ||
 			    vref_mv > ADS7828_EXT_VREF_MV_MAX)
diff --git a/drivers/hwmon/corsair-psu.c b/drivers/hwmon/corsair-psu.c
index 4ab73bcef1d125..61d1b22bc63ecb 100644
--- a/drivers/hwmon/corsair-psu.c
+++ b/drivers/hwmon/corsair-psu.c
@@ -709,7 +709,7 @@ static int vendor_show(struct seq_file *seqf, void *unused)
 {
 	struct corsairpsu_data *priv = seqf->private;
 
-	seq_printf(seqf, "%s\n", priv->vendor);
+	seq_printf(seqf, "%.*s\n", REPLY_SIZE, priv->vendor);
 
 	return 0;
 }
@@ -719,7 +719,7 @@ static int product_show(struct seq_file *seqf, void *unused)
 {
 	struct corsairpsu_data *priv = seqf->private;
 
-	seq_printf(seqf, "%s\n", priv->product);
+	seq_printf(seqf, "%.*s\n", REPLY_SIZE, priv->product);
 
 	return 0;
 }
diff --git a/drivers/hwmon/nzxt-smart2.c b/drivers/hwmon/nzxt-smart2.c
index 5bbe6f3f8af48c..00c8d3bc3e3441 100644
--- a/drivers/hwmon/nzxt-smart2.c
+++ b/drivers/hwmon/nzxt-smart2.c
@@ -760,7 +760,11 @@ static int nzxt_smart2_hid_probe(struct hid_device *hdev,
 
 	hid_device_io_start(hdev);
 
-	init_device(drvdata, UPDATE_INTERVAL_DEFAULT_MS);
+	ret = init_device(drvdata, UPDATE_INTERVAL_DEFAULT_MS);
+	if (ret) {
+		dev_err(&hdev->dev, "init_device failed: %d\n", ret);
+		goto out_hw_close;
+	}
 
 	drvdata->hwmon =
 		hwmon_device_register_with_info(&hdev->dev, "nzxtsmart2", drvdata,
diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c
index 929fa6d34efdc5..8a94c4cfb5d197 100644
--- a/drivers/hwmon/pmbus/lm25066.c
+++ b/drivers/hwmon/pmbus/lm25066.c
@@ -14,10 +14,11 @@
 #include <linux/slab.h>
 #include <linux/i2c.h>
 #include <linux/log2.h>
-#include <linux/of_device.h>
+#include <linux/math.h>
+#include <linux/of.h>
 #include "pmbus.h"
 
-enum chips { lm25056, lm25066, lm5064, lm5066, lm5066i };
+enum chips { lm25056 = 1, lm25066, lm5064, lm5066, lm5066i };
 
 #define LM25066_READ_VAUX		0xd0
 #define LM25066_MFR_READ_IIN		0xd1
@@ -468,8 +469,6 @@ static int lm25066_probe(struct i2c_client *client)
 	struct lm25066_data *data;
 	struct pmbus_driver_info *info;
 	const struct __coeff *coeff;
-	const struct of_device_id *of_id;
-	const struct i2c_device_id *i2c_id;
 
 	if (!i2c_check_functionality(client->adapter,
 				     I2C_FUNC_SMBUS_READ_BYTE_DATA))
@@ -484,14 +483,8 @@ static int lm25066_probe(struct i2c_client *client)
 	if (config < 0)
 		return config;
 
-	i2c_id = i2c_match_id(lm25066_id, client);
+	data->id = (enum chips)(unsigned long)i2c_get_match_data(client);
 
-	of_id = of_match_device(lm25066_of_match, &client->dev);
-	if (of_id && (unsigned long)of_id->data != i2c_id->driver_data)
-		dev_notice(&client->dev, "Device mismatch: %s in device tree, %s detected\n",
-			   of_id->name, i2c_id->name);
-
-	data->id = i2c_id->driver_data;
 	info = &data->info;
 
 	info->pages = 1;
@@ -548,8 +541,8 @@ static int lm25066_probe(struct i2c_client *client)
 	if (of_property_read_u32(client->dev.of_node, "shunt-resistor-micro-ohms", &shunt))
 		shunt = 1000;
 
-	info->m[PSC_CURRENT_IN] = info->m[PSC_CURRENT_IN] * shunt / 1000;
-	info->m[PSC_POWER] = info->m[PSC_POWER] * shunt / 1000;
+	info->m[PSC_CURRENT_IN] = DIV_ROUND_CLOSEST_ULL((u64)info->m[PSC_CURRENT_IN] * shunt, 1000);
+	info->m[PSC_POWER] = DIV_ROUND_CLOSEST_ULL((u64)info->m[PSC_POWER] * shunt, 1000);
 
 #if IS_ENABLED(CONFIG_SENSORS_LM25066_REGULATOR)
 	/* LM25056 doesn't support OPERATION */
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 95f90699d2b17b..db014dae950018 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -21,6 +21,7 @@
 #include <linux/init.h>
 #include <linux/input/mt.h>
 #include <linux/major.h>
+#include <linux/nospec.h>
 #include <linux/device.h>
 #include <linux/cdev.h>
 #include "input-compat.h"
@@ -67,8 +68,10 @@ static size_t evdev_get_mask_cnt(unsigned int type)
 		[EV_SND]	= SND_CNT,
 		[EV_FF]		= FF_CNT,
 	};
+	unsigned long mask = array_index_mask_nospec(type, EV_CNT);
 
-	return (type < EV_CNT) ? counts[type] : 0;
+	/* Returns 0 for out-of-bounds types, including speculatively */
+	return counts[type & mask] & mask;
 }
 
 /* requires the buffer lock to be held */
@@ -146,11 +149,11 @@ static void __evdev_queue_syn_dropped(struct evdev_client *client)
 	struct timespec64 ts = ktime_to_timespec64(ev_time[client->clk_type]);
 	struct input_event ev;
 
+	memset(&ev, 0, sizeof(ev));
 	ev.input_event_sec = ts.tv_sec;
 	ev.input_event_usec = ts.tv_nsec / NSEC_PER_USEC;
 	ev.type = EV_SYN;
 	ev.code = SYN_DROPPED;
-	ev.value = 0;
 
 	client->buffer[client->head++] = ev;
 	client->head &= client->bufsize - 1;
@@ -218,20 +221,20 @@ static void __pass_event(struct evdev_client *client,
 	client->head &= client->bufsize - 1;
 
 	if (unlikely(client->head == client->tail)) {
+		struct input_event ev;
+
+		memset(&ev, 0, sizeof(ev));
+		ev.input_event_sec = event->input_event_sec;
+		ev.input_event_usec = event->input_event_usec;
+		ev.type = EV_SYN;
+		ev.code = SYN_DROPPED;
+
 		/*
 		 * This effectively "drops" all unconsumed events, leaving
 		 * EV_SYN/SYN_DROPPED plus the newest event in the queue.
 		 */
 		client->tail = (client->head - 2) & (client->bufsize - 1);
-
-		client->buffer[client->tail] = (struct input_event) {
-			.input_event_sec = event->input_event_sec,
-			.input_event_usec = event->input_event_usec,
-			.type = EV_SYN,
-			.code = SYN_DROPPED,
-			.value = 0,
-		};
-
+		client->buffer[client->tail] = ev;
 		client->packet_head = client->tail;
 	}
 
@@ -253,6 +256,8 @@ static void evdev_pass_values(struct evdev_client *client,
 	if (client->revoked)
 		return;
 
+	memset(&event, 0, sizeof(event));
+
 	ts = ktime_to_timespec64(ev_time[client->clk_type]);
 	event.input_event_sec = ts.tv_sec;
 	event.input_event_usec = ts.tv_nsec / NSEC_PER_USEC;
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 35e311dfa49d70..0a5ab9ea89d447 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -468,6 +468,7 @@ static void fastrpc_channel_ctx_free(struct kref *ref)
 
 	cctx = container_of(ref, struct fastrpc_channel_ctx, refcount);
 
+	idr_destroy(&cctx->ctx_idr);
 	kfree(cctx);
 }
 
@@ -1275,10 +1276,12 @@ bail:
 	}
 
 	if (err == -ERESTARTSYS) {
+		spin_lock(&fl->lock);
 		list_for_each_entry_safe(buf, b, &fl->mmaps, node) {
 			list_del(&buf->node);
 			list_add_tail(&buf->node, &fl->cctx->invoke_interrupted_mmaps);
 		}
+		spin_unlock(&fl->lock);
 	}
 
 	if (err)
@@ -1644,7 +1647,7 @@ static int fastrpc_device_open(struct inode *inode, struct file *filp)
 		dev_err(&cctx->rpdev->dev, "No session available\n");
 		mutex_destroy(&fl->mutex);
 		kfree(fl);
-
+		fastrpc_channel_ctx_put(cctx);
 		return -EBUSY;
 	}
 
@@ -1872,9 +1875,6 @@ static int fastrpc_req_munmap_impl(struct fastrpc_user *fl, struct fastrpc_buf *
 				      &args[0]);
 	if (!err) {
 		dev_dbg(dev, "unmmap\tpt 0x%09lx OK\n", buf->raddr);
-		spin_lock(&fl->lock);
-		list_del(&buf->node);
-		spin_unlock(&fl->lock);
 		fastrpc_buf_free(buf);
 	} else {
 		dev_err(dev, "unmmap\tpt 0x%09lx ERROR\n", buf->raddr);
@@ -1888,6 +1888,7 @@ static int fastrpc_req_munmap(struct fastrpc_user *fl, char __user *argp)
 	struct fastrpc_buf *buf = NULL, *iter, *b;
 	struct fastrpc_req_munmap req;
 	struct device *dev = fl->sctx->dev;
+	int err;
 
 	if (copy_from_user(&req, argp, sizeof(req)))
 		return -EFAULT;
@@ -1895,6 +1896,7 @@ static int fastrpc_req_munmap(struct fastrpc_user *fl, char __user *argp)
 	spin_lock(&fl->lock);
 	list_for_each_entry_safe(iter, b, &fl->mmaps, node) {
 		if ((iter->raddr == req.vaddrout) && (iter->size == req.size)) {
+			list_del(&iter->node);
 			buf = iter;
 			break;
 		}
@@ -1907,7 +1909,14 @@ static int fastrpc_req_munmap(struct fastrpc_user *fl, char __user *argp)
 		return -EINVAL;
 	}
 
-	return fastrpc_req_munmap_impl(fl, buf);
+	err = fastrpc_req_munmap_impl(fl, buf);
+	if (err) {
+		spin_lock(&fl->lock);
+		list_add_tail(&buf->node, &fl->mmaps);
+		spin_unlock(&fl->lock);
+	}
+
+	return err;
 }
 
 static int fastrpc_req_mmap(struct fastrpc_user *fl, char __user *argp)
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 699fa2362ed4d7..133c36a353bde5 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -447,18 +447,24 @@ static void mei_io_tx_list_free_cl(struct list_head *head,
 }
 
 /**
- * mei_io_list_free_fp - free cb from a list that matches file pointer
+ * mei_io_rd_list_free_fp - free cb from a rd_completed list that matches file pointer
  *
- * @head: io list
+ * @cl: host client
  * @fp: file pointer (matching cb file object), may be NULL
  */
-static void mei_io_list_free_fp(struct list_head *head, const struct file *fp)
+static void mei_io_rd_list_free_fp(struct mei_cl *cl, const struct file *fp)
 {
 	struct mei_cl_cb *cb, *next;
+	LIST_HEAD(cmpl_list);
 
-	list_for_each_entry_safe(cb, next, head, list)
+	spin_lock(&cl->rd_completed_lock);
+	list_for_each_entry_safe(cb, next, &cl->rd_completed, list)
 		if (!fp || fp == cb->fp)
-			mei_io_cb_free(cb);
+			list_move(&cb->list, &cmpl_list);
+	spin_unlock(&cl->rd_completed_lock);
+
+	list_for_each_entry_safe(cb, next, &cmpl_list, list)
+		mei_io_cb_free(cb);
 }
 
 /**
@@ -587,9 +593,7 @@ int mei_cl_flush_queues(struct mei_cl *cl, const struct file *fp)
 		mei_io_list_flush_cl(&cl->dev->ctrl_rd_list, cl);
 		mei_cl_free_pending(cl);
 	}
-	spin_lock(&cl->rd_completed_lock);
-	mei_io_list_free_fp(&cl->rd_completed, fp);
-	spin_unlock(&cl->rd_completed_lock);
+	mei_io_rd_list_free_fp(cl, fp);
 
 	return 0;
 }
@@ -1426,7 +1430,7 @@ void mei_cl_add_rd_completed(struct mei_cl *cl, struct mei_cl_cb *cb)
 }
 
 /**
- * mei_cl_del_rd_completed - free read completed callback with lock
+ * mei_cl_del_rd_completed - unlink read completed callback with lock and free it
  *
  * @cl: host client
  * @cb: callback block
@@ -1435,8 +1439,9 @@ void mei_cl_add_rd_completed(struct mei_cl *cl, struct mei_cl_cb *cb)
 void mei_cl_del_rd_completed(struct mei_cl *cl, struct mei_cl_cb *cb)
 {
 	spin_lock(&cl->rd_completed_lock);
-	mei_io_cb_free(cb);
+	list_del_init(&cb->list);
 	spin_unlock(&cl->rd_completed_lock);
+	mei_io_cb_free(cb);
 }
 
 /**
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 7edf0fd58c3463..ce6a3a0a2e1537 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1535,8 +1535,8 @@ void bond_alb_monitor(struct work_struct *work)
 	struct bonding *bond = container_of(work, struct bonding,
 					    alb_work.work);
 	struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
+	struct slave *slave, *curr;
 	struct list_head *iter;
-	struct slave *slave;
 
 	if (!bond_has_slaves(bond)) {
 		atomic_set(&bond_info->tx_rebalance_counter, 0);
@@ -1598,9 +1598,11 @@ void bond_alb_monitor(struct work_struct *work)
 			 * because a slave was disabled then
 			 * it can now leave promiscuous mode.
 			 */
-			dev_set_promiscuity(rtnl_dereference(bond->curr_active_slave)->dev,
-					    -1);
-			bond_info->primary_is_promisc = 0;
+			curr = rtnl_dereference(bond->curr_active_slave);
+			if (bond_info->primary_is_promisc && curr) {
+				dev_set_promiscuity(curr->dev, -1);
+				bond_info->primary_is_promisc = 0;
+			}
 
 			rtnl_unlock();
 			rcu_read_lock();
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index 3f004d08307fb8..ec7654823f4ecc 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -336,6 +336,35 @@ out:
 	return !!budget;
 }
 
+void aq_ring_tx_deinit(struct aq_ring_s *self)
+{
+	if (!self)
+		return;
+
+	for (; self->sw_head != self->sw_tail;
+		self->sw_head = aq_ring_next_dx(self, self->sw_head)) {
+		struct aq_ring_buff_s *buff = &self->buff_ring[self->sw_head];
+		struct device *ndev = aq_nic_get_dev(self->aq_nic);
+
+		if (buff->is_mapped) {
+			if (buff->is_sop) {
+				dma_unmap_single(ndev, buff->pa, buff->len,
+						 DMA_TO_DEVICE);
+			} else {
+				dma_unmap_page(ndev, buff->pa, buff->len,
+					       DMA_TO_DEVICE);
+			}
+		}
+
+		if (buff->is_eop) {
+			if (buff->skb)
+				dev_kfree_skb_any(buff->skb);
+			else if (buff->xdpf)
+				xdp_return_frame(buff->xdpf);
+		}
+	}
+}
+
 static void aq_rx_checksum(struct aq_ring_s *self,
 			   struct aq_ring_buff_s *buff,
 			   struct sk_buff *skb)
@@ -897,15 +926,29 @@ err_exit:
 
 void aq_ring_rx_deinit(struct aq_ring_s *self)
 {
-	if (!self)
+	unsigned int i;
+
+	if (!self || !self->buff_ring)
 		return;
 
-	for (; self->sw_head != self->sw_tail;
-		self->sw_head = aq_ring_next_dx(self, self->sw_head)) {
-		struct aq_ring_buff_s *buff = &self->buff_ring[self->sw_head];
+	/* Release every page still owned by the ring.
+	 *
+	 * Walking [sw_head, sw_tail) is not enough: refill is batched
+	 * (aq_ring_rx_fill() waits for AQ_CFG_RX_REFILL_THRES free slots),
+	 * so slots that were cleaned but not yet reposted accumulate in the
+	 * [sw_tail, sw_head) gap, and they keep their page for reuse. Walk
+	 * the whole ring and release whatever is left.
+	 */
+	for (i = 0; i < self->size; i++) {
+		struct aq_ring_buff_s *buff = &self->buff_ring[i];
+
+		if (!buff->rxdata.page)
+			continue;
 
 		aq_free_rxpage(&buff->rxdata, aq_nic_get_dev(self->aq_nic));
 	}
+
+	self->sw_head = self->sw_tail;
 }
 
 void aq_ring_free(struct aq_ring_s *self)
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
index d627ace850ff54..67503c51267605 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
@@ -199,6 +199,7 @@ void aq_ring_update_queue_state(struct aq_ring_s *ring);
 void aq_ring_queue_wake(struct aq_ring_s *ring);
 void aq_ring_queue_stop(struct aq_ring_s *ring);
 bool aq_ring_tx_clean(struct aq_ring_s *self);
+void aq_ring_tx_deinit(struct aq_ring_s *self);
 int aq_xdp_xmit(struct net_device *dev, int num_frames,
 		struct xdp_frame **frames, u32 flags);
 int aq_ring_rx_clean(struct aq_ring_s *self,
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
index 9769ab4f9bef01..62b5967b6dcc66 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
@@ -275,7 +275,7 @@ void aq_vec_deinit(struct aq_vec_s *self)
 
 	for (i = 0U; self->tx_rings > i; ++i) {
 		ring = self->ring[i];
-		aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
+		aq_ring_tx_deinit(&ring[AQ_VEC_TX_ID]);
 		aq_ring_rx_deinit(&ring[AQ_VEC_RX_ID]);
 	}
 
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index afe700575f530d..e305b02b775e39 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3715,7 +3715,17 @@ static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr)
 
 	if ((bp->flags & BNXT_FLAG_AGG_RINGS)) {
 		type = ((u32)BNXT_RX_PAGE_SIZE << RX_BD_LEN_SHIFT) |
-			RX_BD_TYPE_RX_AGG_BD | RX_BD_FLAGS_SOP;
+			RX_BD_TYPE_RX_AGG_BD;
+
+		/* Disable EOP if TPA is enabled to prevent overlapping zero
+		 * padding with the next segment's data.  On P7_PLUS, EOP will
+		 * automatically disable Relaxed Ordering (RO) to prevent
+		 * potential data corruption (and may degrade performance).  On
+		 * older chips, RO will not be automatically disabled and may
+		 * cause corruption.
+		 */
+		if (!(bp->flags & BNXT_FLAG_TPA))
+			type |= RX_BD_FLAGS_AGG_EOP;
 
 		bnxt_init_rxbd_pages(ring, type);
 	}
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index bc1ff1085da7f6..739ed9d0b5ab5b 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -104,6 +104,7 @@ struct rx_bd {
 	 #define RX_BD_TYPE_48B_BD_SIZE				 (2 << 4)
 	 #define RX_BD_TYPE_64B_BD_SIZE				 (3 << 4)
 	#define RX_BD_FLAGS_SOP					(1 << 6)
+	#define RX_BD_FLAGS_AGG_EOP				(1 << 6)
 	#define RX_BD_FLAGS_EOP					(1 << 7)
 	#define RX_BD_FLAGS_BUFFERS				(3 << 8)
 	 #define RX_BD_FLAGS_1_BUFFER_PACKET			 (0 << 8)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
index 404b433f1bc08e..d8f39776481b6f 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
@@ -475,12 +475,15 @@ static int bnxt_ptp_enable(struct ptp_clock_info *ptp_info,
 		return rc;
 	case PTP_CLK_REQ_PPS:
 		/* Configure PHC PPS IN */
-		rc = bnxt_ptp_cfg_pin(bp, 0, BNXT_PPS_PIN_PPS_IN);
+		pin_id = 0;
+		if (!on)
+			break;
+		rc = bnxt_ptp_cfg_pin(bp, pin_id, BNXT_PPS_PIN_PPS_IN);
 		if (rc)
 			return rc;
 		rc = bnxt_ptp_cfg_event(bp, BNXT_PPS_EVENT_INTERNAL);
 		if (!rc)
-			ptp->pps_info.pins[0].event = BNXT_PPS_EVENT_INTERNAL;
+			ptp->pps_info.pins[pin_id].event = BNXT_PPS_EVENT_INTERNAL;
 		return rc;
 	default:
 		netdev_err(ptp->bp->dev, "Unrecognized PIN function\n");
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 49297b83c3fdb8..ec7fe943e56828 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -3322,8 +3322,15 @@ static void fec_enet_free_buffers(struct net_device *ndev)
 
 	for (q = 0; q < fep->num_rx_queues; q++) {
 		rxq = fep->rx_queue[q];
-		for (i = 0; i < rxq->bd.ring_size; i++)
-			page_pool_put_full_page(rxq->page_pool, rxq->rx_skb_info[i].page, false);
+		for (i = 0; i < rxq->bd.ring_size; i++) {
+			struct page *page = rxq->rx_skb_info[i].page;
+
+			if (!page)
+				continue;
+
+			page_pool_put_full_page(rxq->page_pool, page, false);
+			rxq->rx_skb_info[i].page = NULL;
+		}
 
 		for (i = 0; i < XDP_STATS_TOTAL; i++)
 			rxq->stats[i] = 0;
diff --git a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
index 26d22bb04b8790..e8cedc2608654b 100644
--- a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
+++ b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c
@@ -1287,7 +1287,6 @@ static int hix5hd2_dev_remove(struct platform_device *pdev)
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct hix5hd2_priv *priv = netdev_priv(ndev);
 
-	netif_napi_del(&priv->napi);
 	unregister_netdev(ndev);
 	mdiobus_unregister(priv->bus);
 	mdiobus_free(priv->bus);
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
index 635cfb9a3e2c5f..1d1e5cea9395d3 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
@@ -72,10 +72,12 @@ static void otx2_get_egress_burst_cfg(struct otx2_nic *nic, u32 burst,
 	if (burst) {
 		*burst_exp = ilog2(burst) ? ilog2(burst) - 1 : 0;
 		tmp = burst - rounddown_pow_of_two(burst);
-		if (burst < max_mantissa)
+		if (burst <= max_mantissa) {
 			*burst_mantissa = tmp * 2;
-		else
+		} else {
+			WARN_ON(*burst_exp < 7);
 			*burst_mantissa = tmp / (1ULL << (*burst_exp - 7));
+		}
 	} else {
 		*burst_exp = MAX_BURST_EXPONENT;
 		*burst_mantissa = max_mantissa;
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_pci.c b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
index 35857dc19542f7..5db2c9e5e077df 100644
--- a/drivers/net/ethernet/marvell/prestera/prestera_pci.c
+++ b/drivers/net/ethernet/marvell/prestera/prestera_pci.c
@@ -684,6 +684,9 @@ static int prestera_fw_hdr_parse(struct prestera_fw *fw)
 	struct prestera_fw_header *hdr;
 	u32 magic;
 
+	if (fw->bin->size < sizeof(*hdr))
+		return -EINVAL;
+
 	hdr = (struct prestera_fw_header *)fw->bin->data;
 
 	magic = be32_to_cpu(hdr->magic_number);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
index 0a33ab5f53fd30..dba0d73ac37d52 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
@@ -1050,13 +1050,11 @@ struct mlx5_fw_tracer *mlx5_fw_tracer_create(struct mlx5_core_dev *dev)
 
 	tracer = kvzalloc(sizeof(*tracer), GFP_KERNEL);
 	if (!tracer)
-		return ERR_PTR(-ENOMEM);
+		return NULL;
 
 	tracer->work_queue = create_singlethread_workqueue("mlx5_fw_tracer");
-	if (!tracer->work_queue) {
-		err = -ENOMEM;
+	if (!tracer->work_queue)
 		goto free_tracer;
-	}
 
 	tracer->dev = dev;
 
@@ -1098,7 +1096,7 @@ destroy_workqueue:
 	destroy_workqueue(tracer->work_queue);
 free_tracer:
 	kvfree(tracer);
-	return ERR_PTR(err);
+	return NULL;
 }
 
 static int fw_tracer_event(struct notifier_block *nb, unsigned long action, void *data);
@@ -1109,7 +1107,7 @@ int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer)
 	struct mlx5_core_dev *dev;
 	int err;
 
-	if (IS_ERR_OR_NULL(tracer))
+	if (!tracer)
 		return 0;
 
 	if (!tracer->str_db.loaded)
@@ -1159,7 +1157,7 @@ err_cancel_work:
 /* Stop tracer + Cleanup HW resources */
 void mlx5_fw_tracer_cleanup(struct mlx5_fw_tracer *tracer)
 {
-	if (IS_ERR_OR_NULL(tracer))
+	if (!tracer)
 		return;
 
 	mutex_lock(&tracer->state_lock);
@@ -1188,7 +1186,7 @@ unlock:
 /* Free software resources (Buffers, etc ..) */
 void mlx5_fw_tracer_destroy(struct mlx5_fw_tracer *tracer)
 {
-	if (IS_ERR_OR_NULL(tracer))
+	if (!tracer)
 		return;
 
 	mlx5_core_dbg(tracer->dev, "FWTracer: Destroy\n");
@@ -1240,7 +1238,7 @@ int mlx5_fw_tracer_reload(struct mlx5_fw_tracer *tracer)
 	struct mlx5_core_dev *dev;
 	int err;
 
-	if (IS_ERR_OR_NULL(tracer))
+	if (!tracer)
 		return 0;
 
 	dev = tracer->dev;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_priv.h b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_priv.h
index 6cc23af66b5be0..a23d0df42f0278 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_priv.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_priv.h
@@ -30,6 +30,7 @@ enum {
 	MLX5E_TC_FLOW_FLAG_FAILED                = MLX5E_TC_FLOW_BASE + 9,
 	MLX5E_TC_FLOW_FLAG_SAMPLE                = MLX5E_TC_FLOW_BASE + 10,
 	MLX5E_TC_FLOW_FLAG_USE_ACT_STATS         = MLX5E_TC_FLOW_BASE + 11,
+	MLX5E_TC_FLOW_FLAG_PEER                  = MLX5E_TC_FLOW_BASE + 12,
 };
 
 struct mlx5e_tc_flow_parse_attr {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index f1f42250573115..8c52bbeabb7e0c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -2043,7 +2043,8 @@ static void mlx5e_tc_del_flow(struct mlx5e_priv *priv,
 	if (mlx5e_is_eswitch_flow(flow)) {
 		struct mlx5_devcom_comp_dev *devcom = flow->priv->mdev->priv.eswitch->devcom;
 
-		if (!mlx5_devcom_for_each_peer_begin(devcom)) {
+		if (flow_flag_test(flow, PEER) ||
+		    !mlx5_devcom_for_each_peer_begin(devcom)) {
 			mlx5e_tc_del_fdb_flow(priv, flow);
 			return;
 		}
@@ -4489,6 +4490,7 @@ static int mlx5e_tc_add_fdb_peer_flow(struct flow_cls_offload *f,
 	else
 		in_mdev = priv->mdev;
 
+	flow_flags |= BIT(MLX5E_TC_FLOW_FLAG_PEER);
 	parse_attr = flow->attr->parse_attr;
 	peer_flow = __mlx5e_add_fdb_flow(peer_priv, f, flow_flags,
 					 parse_attr->filter_dev,
diff --git a/drivers/net/thunderbolt/main.c b/drivers/net/thunderbolt/main.c
index 5d7d11d75b0b8f..ceaba08cd378ae 100644
--- a/drivers/net/thunderbolt/main.c
+++ b/drivers/net/thunderbolt/main.c
@@ -389,11 +389,16 @@ static void tbnet_tear_down(struct tbnet *net, bool send_logout)
 				break;
 		}
 
-		tb_ring_stop(net->rx_ring.ring);
-		tb_ring_stop(net->tx_ring.ring);
-		tbnet_free_buffers(&net->rx_ring);
-		tbnet_free_buffers(&net->tx_ring);
-
+		/* Tear the paths down before stopping the rings.  This mirrors
+		 * tbnet_connected_work(), which enables the paths last so the
+		 * Rx ring is primed before packets can arrive.  Stopping a
+		 * ring zeroes its descriptor base and tbnet_free_buffers()
+		 * unmaps and frees the frame buffers, leaving anything still
+		 * in flight with nowhere to drain to;
+		 * __tb_path_deactivate_hop() then waits for the hop's
+		 * 'pending' bit, which on some host routers never clears in
+		 * that state.
+		 */
 		ret = tb_xdomain_disable_paths(net->xd,
 					       net->local_transmit_path,
 					       net->tx_ring.ring->hop,
@@ -402,6 +407,11 @@ static void tbnet_tear_down(struct tbnet *net, bool send_logout)
 		if (ret)
 			netdev_warn(net->dev, "failed to disable DMA paths\n");
 
+		tb_ring_stop(net->rx_ring.ring);
+		tb_ring_stop(net->tx_ring.ring);
+		tbnet_free_buffers(&net->rx_ring);
+		tbnet_free_buffers(&net->tx_ring);
+
 		tb_xdomain_release_in_hopid(net->xd, net->remote_transmit_path);
 		net->remote_transmit_path = 0;
 	}
@@ -928,12 +938,8 @@ static int tbnet_open(struct net_device *dev)
 
 	netif_carrier_off(dev);
 
-	flags = RING_FLAG_FRAME;
-	/* Only enable full E2E if the other end supports it too */
-	if (tbnet_e2e && net->svc->prtcstns & TBNET_E2E)
-		flags |= RING_FLAG_E2E;
-
-	ring = tb_ring_alloc_tx(xd->tb->nhi, -1, TBNET_RING_SIZE, flags);
+	ring = tb_ring_alloc_tx(xd->tb->nhi, -1, TBNET_RING_SIZE,
+				RING_FLAG_FRAME);
 	if (!ring) {
 		netdev_err(dev, "failed to allocate Tx ring\n");
 		return -ENOMEM;
@@ -952,6 +958,11 @@ static int tbnet_open(struct net_device *dev)
 	sof_mask = BIT(TBIP_PDF_FRAME_START);
 	eof_mask = BIT(TBIP_PDF_FRAME_END);
 
+	flags = RING_FLAG_FRAME;
+	/* Only enable full E2E if the other end supports it too */
+	if (tbnet_e2e && net->svc->prtcstns & TBNET_E2E)
+		flags |= RING_FLAG_E2E;
+
 	ring = tb_ring_alloc_rx(xd->tb->nhi, -1, TBNET_RING_SIZE, flags,
 				net->tx_ring.ring->hop, sof_mask,
 				eof_mask, tbnet_start_poll, net);
diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 73de34179f3525..619093d3337320 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -1491,8 +1491,10 @@ ax88179_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
 
 	headroom = skb_headroom(skb) - 8;
 
-	if ((dev->net->features & NETIF_F_SG) && skb_linearize(skb))
+	if ((dev->net->features & NETIF_F_SG) && skb_linearize(skb)) {
+		dev_kfree_skb_any(skb);
 		return NULL;
+	}
 
 	if ((skb_header_cloned(skb) || headroom < 0) &&
 	    pskb_expand_head(skb, headroom < 0 ? 8 : 0, 0, GFP_ATOMIC)) {
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index d85a11e9477f04..e2fa5ba5a032c9 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -902,18 +902,24 @@ static struct sk_buff *veth_xdp_rcv_skb(struct veth_rq *rq,
 
 	skb_reset_mac_header(skb);
 
-	/* check if bpf_xdp_adjust_tail was used */
-	off = xdp->data_end - orig_data_end;
-	if (off != 0)
-		__skb_put(skb, off); /* positive on grow, negative on shrink */
-
 	/* XDP frag metadata (e.g. nr_frags) are updated in eBPF helpers
-	 * (e.g. bpf_xdp_adjust_tail), we need to update data_len here.
+	 * (e.g. bpf_xdp_adjust_tail). Remove the old fragment contribution
+	 * from skb->len before updating data_len, then add the new one back.
 	 */
-	if (xdp_buff_has_frags(xdp))
+	skb->len -= skb->data_len;
+	if (xdp_buff_has_frags(xdp)) {
 		skb->data_len = skb_shinfo(skb)->xdp_frags_size;
-	else
+		skb->len += skb->data_len;
+	} else {
 		skb->data_len = 0;
+	}
+
+	/* Synchronize the skb tail with XDP's updated linear area. */
+	off = xdp->data_end - orig_data_end;
+	if (off != 0) {
+		skb_set_tail_pointer(skb, xdp->data_end - xdp->data);
+		skb->len += off; /* positive on grow, negative on shrink */
+	}
 
 	skb->protocol = eth_type_trans(skb, rq->dev);
 
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index 0e9aeb03fcc73e..9d3546f95fa459 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -4338,7 +4338,7 @@ static int vxlan_changelink(struct net_device *dev, struct nlattr *tb[],
 	if (change_igmp && vxlan_addr_multicast(&dst->remote_ip))
 		err = vxlan_multicast_leave(vxlan);
 
-	if (conf.age_interval != vxlan->cfg.age_interval)
+	if (netif_running(dev) && conf.age_interval != vxlan->cfg.age_interval)
 		mod_timer(&vxlan->age_timer, jiffies);
 
 	netdev_adjacent_change_commit(dst->remote_dev, lowerdev, dev);
diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index ac629c72d59277..b713cc8e0fde8f 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -710,7 +710,7 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev,
 		}
 
 		default:
-			return -EOPNOTSUPP;
+			return -ENOTSUPP;
 		}
 	}
 
@@ -759,7 +759,7 @@ static int rzg2l_pinctrl_pinconf_group_get(struct pinctrl_dev *pctldev,
 
 		/* Check config matching between to pin  */
 		if (i && prev_config != *config)
-			return -EOPNOTSUPP;
+			return -ENOTSUPP;
 
 		prev_config = *config;
 	}
diff --git a/drivers/ptp/ptp_ocp.c b/drivers/ptp/ptp_ocp.c
index 4899fdf9bdf7a2..2d21699586ce7e 100644
--- a/drivers/ptp/ptp_ocp.c
+++ b/drivers/ptp/ptp_ocp.c
@@ -1671,9 +1671,11 @@ ptp_ocp_devlink_info_get(struct devlink *devlink, struct devlink_info_req *req,
 	if (err)
 		return err;
 
+	snprintf(buf, sizeof(buf), "%.*s", OCP_BOARD_ID_LEN,
+		 (const char *)bp->board_id);
 	err = devlink_info_version_fixed_put(req,
 			DEVLINK_INFO_VERSION_GENERIC_BOARD_ID,
-			bp->board_id);
+			buf);
 	if (err)
 		return err;
 
diff --git a/drivers/regulator/devres.c b/drivers/regulator/devres.c
index 90bb0d178885af..7111c46e9de13f 100644
--- a/drivers/regulator/devres.c
+++ b/drivers/regulator/devres.c
@@ -145,6 +145,65 @@ struct regulator *devm_regulator_get_optional(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(devm_regulator_get_optional);
 
+/**
+ * devm_regulator_get_enable_read_voltage - Resource managed regulator get and
+ *                                          enable that returns the voltage
+ * @dev: device to supply
+ * @id:  supply name or regulator ID.
+ *
+ * Get and enable regulator for duration of the device life-time.
+ * regulator_disable() and regulator_put() are automatically called on driver
+ * detach. See regulator_get_optional(), regulator_enable(), and
+ * regulator_get_voltage() for more information.
+ *
+ * This is a convenience function for supplies that provide a reference voltage
+ * where the consumer driver just needs to know the voltage and keep the
+ * regulator enabled.
+ *
+ * In cases where the supply is not strictly required, callers can check for
+ * -ENODEV error and handle it accordingly.
+ *
+ * Returns: voltage in microvolts on success, or an error code on failure.
+ */
+int devm_regulator_get_enable_read_voltage(struct device *dev, const char *id)
+{
+	struct regulator *r;
+	int ret;
+
+	/*
+	 * Since we need a real voltage, we use devm_regulator_get_optional()
+	 * rather than getting a dummy regulator with devm_regulator_get() and
+	 * then letting regulator_get_voltage() fail with -EINVAL. This way, the
+	 * caller can handle the -ENODEV error code if needed instead of the
+	 * ambiguous -EINVAL.
+	 */
+	r = devm_regulator_get_optional(dev, id);
+	if (IS_ERR(r))
+		return PTR_ERR(r);
+
+	ret = regulator_enable(r);
+	if (ret)
+		goto err_regulator_put;
+
+	ret = devm_add_action_or_reset(dev, regulator_action_disable, r);
+	if (ret)
+		goto err_regulator_put;
+
+	ret = regulator_get_voltage(r);
+	if (ret < 0)
+		goto err_release_action;
+
+	return ret;
+
+err_release_action:
+	devm_release_action(dev, regulator_action_disable, r);
+err_regulator_put:
+	devm_regulator_put(r);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_get_enable_read_voltage);
+
 static int devm_regulator_match(struct device *dev, void *res, void *data)
 {
 	struct regulator **r = res;
diff --git a/drivers/s390/crypto/zcrypt_ccamisc.c b/drivers/s390/crypto/zcrypt_ccamisc.c
index c3e3f3a3d8f960..b8526219ecebe3 100644
--- a/drivers/s390/crypto/zcrypt_ccamisc.c
+++ b/drivers/s390/crypto/zcrypt_ccamisc.c
@@ -946,7 +946,8 @@ static int _ip_cprb_helper(u16 cardnr, u16 domain,
 			   const u8 *clr_key_value,
 			   int clr_key_bit_size,
 			   u8 *key_token,
-			   int *key_token_size)
+			   int *key_token_size,
+			   bool scrub)
 {
 	int rc, n;
 	u8 *mem, *ptr;
@@ -1087,7 +1088,7 @@ static int _ip_cprb_helper(u16 cardnr, u16 domain,
 	*key_token_size = t->len;
 
 out:
-	free_cprbmem(mem, PARMBSIZE, 0);
+	free_cprbmem(mem, PARMBSIZE, scrub);
 	return rc;
 }
 
@@ -1130,7 +1131,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags,
 	 * 4/4 COMPLETE the secure cipher key import
 	 */
 	rc = _ip_cprb_helper(card, dom, "AES     ", "FIRST   ", "MIN3PART",
-			     exorbuf, keybitsize, token, &tokensize);
+			     exorbuf, keybitsize, token, &tokensize,
+			     true);
 	if (rc) {
 		DEBUG_ERR(
 			"%s clear key import 1/4 with CSNBKPI2 failed, rc=%d\n",
@@ -1138,7 +1140,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags,
 		goto out;
 	}
 	rc = _ip_cprb_helper(card, dom, "AES     ", "ADD-PART", NULL,
-			     clrkey, keybitsize, token, &tokensize);
+			     clrkey, keybitsize, token, &tokensize,
+			     true);
 	if (rc) {
 		DEBUG_ERR(
 			"%s clear key import 2/4 with CSNBKPI2 failed, rc=%d\n",
@@ -1146,7 +1149,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags,
 		goto out;
 	}
 	rc = _ip_cprb_helper(card, dom, "AES     ", "ADD-PART", NULL,
-			     exorbuf, keybitsize, token, &tokensize);
+			     exorbuf, keybitsize, token, &tokensize,
+			     true);
 	if (rc) {
 		DEBUG_ERR(
 			"%s clear key import 3/4 with CSNBKPI2 failed, rc=%d\n",
@@ -1154,7 +1158,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags,
 		goto out;
 	}
 	rc = _ip_cprb_helper(card, dom, "AES     ", "COMPLETE", NULL,
-			     NULL, keybitsize, token, &tokensize);
+			     NULL, keybitsize, token, &tokensize,
+			     true);
 	if (rc) {
 		DEBUG_ERR(
 			"%s clear key import 4/4 with CSNBKPI2 failed, rc=%d\n",
@@ -1172,7 +1177,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags,
 	*keybufsize = tokensize;
 
 out:
-	kfree(token);
+	memzero_explicit(exorbuf, sizeof(exorbuf));
+	kfree_sensitive(token);
 	return rc;
 }
 EXPORT_SYMBOL(cca_clr2cipherkey);
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 573bb3fcecd5c5..5d8561ec323b97 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -3077,8 +3077,8 @@ static bool comp_write_worker(struct sdeb_store_info *sip, u64 lba, u32 num,
 	if (!res)
 		return res;
 	if (rest)
-		res = memcmp(fsp, arr + ((num - rest) * lb_size),
-			     rest * lb_size);
+		res = !memcmp(fsp, arr + ((num - rest) * lb_size),
+			      rest * lb_size);
 	if (!res)
 		return res;
 	if (compare_only)
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 3206c84c6f22fb..b7dc2add9114e5 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -751,8 +751,12 @@ static void dspi_setup_accel(struct fsl_dspi *dspi)
 	struct spi_transfer *xfer = dspi->cur_transfer;
 	bool odd = !!(dspi->len & 1);
 
-	/* No accel for frames not multiple of 8 bits at the moment */
-	if (xfer->bits_per_word % 8)
+	/*
+	 * No accel for DMA transfers or frames not multiples of 8 bits at the
+	 * moment.
+	 */
+	if (dspi->devtype_data->trans_mode == DSPI_DMA_MODE ||
+	    xfer->bits_per_word % 8)
 		goto no_accel;
 
 	if (!odd && dspi->len <= dspi->devtype_data->fifo_size * 2) {
@@ -761,10 +765,7 @@ static void dspi_setup_accel(struct fsl_dspi *dspi)
 		dspi->oper_bits_per_word = 8;
 	} else {
 		/* Start off with maximum supported by hardware */
-		if (dspi->devtype_data->trans_mode == DSPI_XSPI_MODE)
-			dspi->oper_bits_per_word = 32;
-		else
-			dspi->oper_bits_per_word = 16;
+		dspi->oper_bits_per_word = 32;
 
 		/*
 		 * And go down only if the buffer can't be sent with
diff --git a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
index 95e4d29242249f..003946633633fc 100644
--- a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
+++ b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
@@ -371,6 +371,9 @@ unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit)
 		pbuf = rtw_get_ie(pbuf, WLAN_EID_VENDOR_SPECIFIC, &len, limit_new);
 
 		if (pbuf) {
+			if (len < 6)
+				goto check_next_ie;
+
 			/* check if oui matches... */
 			if (memcmp((pbuf + 2), wpa_oui_type, sizeof(wpa_oui_type)))
 				goto check_next_ie;
diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
index f4c0fd703c5afc..98b46182afd637 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
@@ -905,7 +905,7 @@ unsigned int OnAuthClient(struct adapter *padapter, union recv_frame *precv_fram
 			p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + _AUTH_IE_OFFSET_, WLAN_EID_CHALLENGE, (int *)&len,
 				pkt_len - WLAN_HDR_A3_LEN - _AUTH_IE_OFFSET_);
 
-			if (!p)
+			if (!p || len != WLAN_AUTH_CHALLENGE_LEN)
 				goto authclnt_fail;
 
 			memcpy((void *)(pmlmeinfo->chg_txt), (void *)(p + 2), len);
diff --git a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
index aba34053037833..3faf0da668c527 100644
--- a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
@@ -731,6 +731,9 @@ int WMM_param_handler(struct adapter *padapter, struct ndis_80211_var_ie *pIE)
 		return false;
 	}
 
+	if (pIE->length != WLAN_WMM_LEN)
+		return false;
+
 	if (!memcmp(&(pmlmeinfo->WMM_param), (pIE->data + 6), sizeof(struct WMM_para_element)))
 		return false;
 	else
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
index 557b9c6513e14a..941d6b8406b60a 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
@@ -2043,6 +2043,8 @@ static netdev_tx_t rtw_cfg80211_monitor_if_xmit_entry(struct sk_buff *skb, struc
 
 	/* Skip the ratio tap header */
 	skb_pull(skb, rtap_len);
+	if (skb->len < dot11_hdr_len)
+		goto fail;
 
 	dot11_hdr = (struct ieee80211_hdr *)skb->data;
 	frame_control = le16_to_cpu(dot11_hdr->frame_control);
@@ -2055,6 +2057,8 @@ static netdev_tx_t rtw_cfg80211_monitor_if_xmit_entry(struct sk_buff *skb, struc
 			qos_len = 2;
 		if ((frame_control & 0x0300) == 0x0300)
 			dot11_hdr_len += 6;
+		if (skb->len < dot11_hdr_len + qos_len + snap_len)
+			goto fail;
 
 		memcpy(dst_mac_addr, dot11_hdr->addr1, sizeof(dst_mac_addr));
 		memcpy(src_mac_addr, dot11_hdr->addr2, sizeof(src_mac_addr));
diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c
index 0e0c4061792cc5..79a4de5f9f0e1a 100644
--- a/drivers/thermal/thermal_hwmon.c
+++ b/drivers/thermal/thermal_hwmon.c
@@ -218,7 +218,8 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz)
 	if (new_hwmon_device)
 		hwmon_device_unregister(hwmon->device);
  free_mem:
-	kfree(hwmon);
+	if (new_hwmon_device)
+		kfree(hwmon);
 
 	return result;
 }
diff --git a/drivers/thunderbolt/eeprom.c b/drivers/thunderbolt/eeprom.c
index eb241b270f790b..6e76c3432a9a2a 100644
--- a/drivers/thunderbolt/eeprom.c
+++ b/drivers/thunderbolt/eeprom.c
@@ -392,9 +392,16 @@ static int tb_drom_parse_entry_port(struct tb_switch *sw,
 			return -EIO;
 		}
 		port->link_nr = entry->link_nr;
-		if (entry->has_dual_link_port)
+		if (entry->has_dual_link_port) {
+			if (entry->dual_link_port_nr > sw->config.max_port_number) {
+				tb_sw_warn(sw,
+					"port entry has invalid dual link port number %u\n",
+					entry->dual_link_port_nr);
+				return -EIO;
+			}
 			port->dual_link_port =
 				&port->sw->ports[entry->dual_link_port_nr];
+		}
 	}
 	return 0;
 }
diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c
index 623aa81a883371..c07fed6c117e2c 100644
--- a/drivers/thunderbolt/icm.c
+++ b/drivers/thunderbolt/icm.c
@@ -2291,7 +2291,7 @@ static int icm_usb4_switch_op(struct tb_switch *sw, u16 opcode, u32 *metadata,
 	if (tx_data_len) {
 		request.data_len_valid |= ICM_USB4_SWITCH_DATA_VALID;
 		if (tx_data_len < ARRAY_SIZE(request.data))
-			request.data_len_valid =
+			request.data_len_valid |=
 				tx_data_len & ICM_USB4_SWITCH_DATA_LEN_MASK;
 		memcpy(request.data, tx_data, tx_data_len * sizeof(u32));
 	}
diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c
index 745a7399c9597b..daf66b0a28553e 100644
--- a/drivers/tty/serial/8250/8250_dma.c
+++ b/drivers/tty/serial/8250/8250_dma.c
@@ -201,11 +201,12 @@ void serial8250_rx_dma_flush(struct uart_8250_port *p)
 {
 	struct uart_8250_dma *dma = p->dma;
 
-	if (dma->rx_running) {
-		dmaengine_pause(dma->rxchan);
-		__dma_rx_complete(p);
-		dmaengine_terminate_async(dma->rxchan);
-	}
+	if (!dma || !dma->rxchan || !dma->rx_running)
+		return;
+
+	dmaengine_pause(dma->rxchan);
+	__dma_rx_complete(p);
+	dmaengine_terminate_async(dma->rxchan);
 }
 EXPORT_SYMBOL_GPL(serial8250_rx_dma_flush);
 
@@ -314,6 +315,7 @@ void serial8250_release_dma(struct uart_8250_port *p)
 
 	/* Release RX resources */
 	dmaengine_terminate_sync(dma->rxchan);
+	dma->rx_running = 0;
 	dma_free_coherent(dma->rxchan->device->dev, dma->rx_size, dma->rx_buf,
 			  dma->rx_addr);
 	dma_release_channel(dma->rxchan);
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 18b3c197c1349b..5a4f2f67f08aa0 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -1405,7 +1405,7 @@ static void kbd_keycode(unsigned int keycode, int down, bool hw_raw)
 	struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down };
 	int rc;
 
-	tty = vc->port.tty;
+	tty = tty_port_tty_get(&vc->port);
 
 	if (tty && (!tty->driver_data)) {
 		/* No driver data? Strange. Okay we fix it then. */
@@ -1465,9 +1465,12 @@ static void kbd_keycode(unsigned int keycode, int down, bool hw_raw)
 		 * characters get aren't echoed locally. This makes key repeat
 		 * usable with slow applications and under heavy loads.
 		 */
+		tty_kref_put(tty);
 		return;
 	}
 
+	tty_kref_put(tty);
+
 	param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate;
 	param.ledstate = kbd->ledflagstate;
 	key_map = key_maps[shift_final];
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 5b21b60547da1f..e8abf4572dae2a 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -408,6 +408,8 @@ static int vt_k_ioctl(struct tty_struct *tty, unsigned int cmd,
 	/* this could be folded into KDSKBMODE, but for compatibility
 	   reasons it is not so easy to fold KDGKBMETA into KDGKBMODE */
 	case KDSKBMETA:
+		if (!perm)
+			return -EPERM;
 		return vt_do_kdskbmeta(console, arg);
 
 	case KDGKBMETA:
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index db9a8f2731f1a4..071d2a079f141b 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -700,6 +700,8 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm,
 	ret = offd;
 	usb_dbg(instance->usbatm, "cm %#x\n", cm);
 fail:
+	if (ret < 0)
+		usb_kill_urb(instance->rcv_urb);
 	mutex_unlock(&instance->cm_serialize);
 err:
 	return ret;
diff --git a/drivers/usb/cdns3/cdnsp-gadget.c b/drivers/usb/cdns3/cdnsp-gadget.c
index fb192b120d77fe..89d3d8167e5993 100644
--- a/drivers/usb/cdns3/cdnsp-gadget.c
+++ b/drivers/usb/cdns3/cdnsp-gadget.c
@@ -154,9 +154,9 @@ static void cdnsp_set_apb_timeout_value(struct cdnsp_device *pdev)
 	offset = cdnsp_find_next_ext_cap(base, offset, D_XEC_PRE_REGS_CAP);
 	reg = base + offset + REG_CHICKEN_BITS_3_OFFSET;
 
-	val  = le32_to_cpu(readl(reg));
+	val  = readl(reg);
 	val = CHICKEN_APB_TIMEOUT_SET(val, cdns->override_apb_timeout);
-	writel(cpu_to_le32(val), reg);
+	writel(val, reg);
 }
 
 static void cdnsp_set_chicken_bits_2(struct cdnsp_device *pdev, u32 bit)
diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c
index 40e20a0ec47151..6535f3393e314d 100644
--- a/drivers/usb/gadget/function/f_ncm.c
+++ b/drivers/usb/gadget/function/f_ncm.c
@@ -1161,7 +1161,7 @@ static int ncm_unwrap_ntb(struct gether *port,
 	unsigned char	*ntb_ptr = skb->data;
 	__le16		*tmp;
 	unsigned	index, index2;
-	int		ndp_index;
+	unsigned int	ndp_index;
 	unsigned	dg_len, dg_len2;
 	unsigned	ndp_len;
 	unsigned	block_len;
diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c
index 3645d83f240d9d..5e2f7f44776797 100644
--- a/drivers/vhost/vdpa.c
+++ b/drivers/vhost/vdpa.c
@@ -998,6 +998,7 @@ static int vhost_vdpa_pa_map(struct vhost_vdpa *v,
 	unsigned int gup_flags = FOLL_LONGTERM;
 	unsigned long npages, cur_base, map_pfn, last_pfn = 0;
 	unsigned long lock_limit, sz2pin, nchunks, i;
+	unsigned long page_offset;
 	u64 start = iova;
 	long pinned;
 	int ret = 0;
@@ -1010,7 +1011,13 @@ static int vhost_vdpa_pa_map(struct vhost_vdpa *v,
 	if (perm & VHOST_ACCESS_WO)
 		gup_flags |= FOLL_WRITE;
 
-	npages = PFN_UP(size + (iova & ~PAGE_MASK));
+	page_offset = iova & ~PAGE_MASK;
+	if (size > ULONG_MAX - page_offset) {
+		ret = -EINVAL;
+		goto free;
+	}
+
+	npages = PFN_UP(size + page_offset);
 	if (!npages) {
 		ret = -EINVAL;
 		goto free;
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 147cfb64bba2d5..fd8298490a31d1 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c
@@ -1937,6 +1937,14 @@ static long vhost_vring_set_num_addr(struct vhost_dev *d,
 		BUG();
 	}
 
+	/*
+	 * The metadata cache holds the IOTLB mapping that backed the previous
+	 * desc/avail/used addresses and vring size, both of which are being
+	 * replaced here.  iotlb_access_ok() takes a cache hit as proof that the
+	 * region was validated, so the stale entries have to go.
+	 */
+	__vhost_vq_meta_reset(vq);
+
 	mutex_unlock(&vq->mutex);
 
 	return r;
diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c
index ed853a2aec2fde..8b58f94ce44c53 100644
--- a/drivers/video/fbdev/core/bitblit.c
+++ b/drivers/video/fbdev/core/bitblit.c
@@ -274,9 +274,14 @@ static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode,
 	if (!vc->vc_font.data)
 		return;
 
- 	c = scr_readw((u16 *) vc->vc_pos);
+	c = scr_readw((u16 *) vc->vc_pos);
 	attribute = get_attribute(info, c);
-	src = vc->vc_font.data + ((c & charmask) * (w * vc->vc_font.height));
+	c &= charmask;
+
+	/* Clamp to font size, same as bit_putcs_aligned() */
+	if (c >= vc->vc_font.charcount)
+		c = 0;
+	src = vc->vc_font.data + (c * (w * vc->vc_font.height));
 
 	if (par->cursor_state.image.data != src ||
 	    par->cursor_reset) {
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b1e2b3f732ccec..e843531201bef4 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -10640,6 +10640,7 @@ out_pages:
 	}
 	kvfree(pages);
 out:
+	extent_changeset_free(data_reserved);
 	if (ret >= 0)
 		iocb->ki_pos += encoded->len;
 	return ret;
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index 14b26036055e40..8be25746fd72ee 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -422,6 +422,19 @@ fscrypt_is_key_prepared(struct fscrypt_prepared_key *prep_key,
 
 /* keyring.c */
 
+/*
+ * fscrypt_master_key_user - a user's claim to a master key
+ */
+struct fscrypt_master_key_user {
+	struct list_head link;
+	kuid_t uid;
+	/*
+	 * This 'struct key' contains no secret.  It exists solely to charge the
+	 * appropriate user's key quota.
+	 */
+	struct key *quota_key;
+};
+
 /*
  * fscrypt_master_key_secret - secret key material of an in-use master key
  */
@@ -506,19 +519,18 @@ struct fscrypt_master_key {
 	struct fscrypt_key_specifier		mk_spec;
 
 	/*
-	 * Keyring which contains a key of type 'key_type_fscrypt_user' for each
-	 * user who has added this key.  Normally each key will be added by just
-	 * one user, but it's possible that multiple users share a key, and in
-	 * that case we need to keep track of those users so that one user can't
-	 * remove the key before the others want it removed too.
+	 * List of user claims to this key (struct fscrypt_master_key_user).
+	 * Normally each key will be added by just one user, but it's possible
+	 * that multiple users share a key, and in that case we need to keep
+	 * track of those users so that one user can't remove the key before the
+	 * others want it removed too.
 	 *
-	 * This is NULL for v1 policy keys; those can only be added by root.
+	 * Used only for v2 policy keys.  v1 policy keys can be added only by
+	 * root, so user tracking doesn't apply to them.
 	 *
-	 * Locking: protected by ->mk_sem.  (We don't just rely on the keyrings
-	 * subsystem semaphore ->mk_users->sem, as we need support for atomic
-	 * search+insert along with proper synchronization with ->mk_secret.)
+	 * Locking: protected by ->mk_sem.
 	 */
-	struct key		*mk_users;
+	struct list_head	mk_users;
 
 	/*
 	 * List of inodes that were unlocked using this key.  This allows the
diff --git a/fs/crypto/keyring.c b/fs/crypto/keyring.c
index 7cbb1fd872acca..f2a0d89d5f5e1e 100644
--- a/fs/crypto/keyring.c
+++ b/fs/crypto/keyring.c
@@ -64,18 +64,19 @@ static void fscrypt_free_master_key(struct rcu_head *head)
 	kfree_sensitive(mk);
 }
 
+static void clear_mk_users(struct fscrypt_master_key *mk);
+
 void fscrypt_put_master_key(struct fscrypt_master_key *mk)
 {
 	if (!refcount_dec_and_test(&mk->mk_struct_refs))
 		return;
 	/*
-	 * No structural references left, so free ->mk_users, and also free the
+	 * No structural references left, so clear ->mk_users, and also free the
 	 * fscrypt_master_key struct itself after an RCU grace period ensures
 	 * that concurrent keyring lookups can no longer find it.
 	 */
 	WARN_ON_ONCE(refcount_read(&mk->mk_active_refs) != 0);
-	key_put(mk->mk_users);
-	mk->mk_users = NULL;
+	clear_mk_users(mk);
 	call_rcu(&mk->mk_rcu_head, fscrypt_free_master_key);
 }
 
@@ -145,8 +146,8 @@ static void fscrypt_user_key_describe(const struct key *key, struct seq_file *m)
 }
 
 /*
- * Type of key in ->mk_users.  Each key of this type represents a particular
- * user who has added a particular master key.
+ * Type of fscrypt_master_key_user::quota_key.  This contains no secret; it
+ * exists solely to charge a user's key quota.
  *
  * Note that the name of this key type really should be something like
  * ".fscrypt-user" instead of simply ".fscrypt".  But the shorter name is chosen
@@ -160,30 +161,9 @@ static struct key_type key_type_fscrypt_user = {
 	.describe		= fscrypt_user_key_describe,
 };
 
-#define FSCRYPT_MK_USERS_DESCRIPTION_SIZE	\
-	(CONST_STRLEN("fscrypt-") + 2 * FSCRYPT_KEY_IDENTIFIER_SIZE + \
-	 CONST_STRLEN("-users") + 1)
-
 #define FSCRYPT_MK_USER_DESCRIPTION_SIZE	\
 	(2 * FSCRYPT_KEY_IDENTIFIER_SIZE + CONST_STRLEN(".uid.") + 10 + 1)
 
-static void format_mk_users_keyring_description(
-			char description[FSCRYPT_MK_USERS_DESCRIPTION_SIZE],
-			const u8 mk_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE])
-{
-	sprintf(description, "fscrypt-%*phN-users",
-		FSCRYPT_KEY_IDENTIFIER_SIZE, mk_identifier);
-}
-
-static void format_mk_user_description(
-			char description[FSCRYPT_MK_USER_DESCRIPTION_SIZE],
-			const u8 mk_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE])
-{
-
-	sprintf(description, "%*phN.uid.%u", FSCRYPT_KEY_IDENTIFIER_SIZE,
-		mk_identifier, __kuid_val(current_fsuid()));
-}
-
 /* Create ->s_master_keys if needed.  Synchronized by fscrypt_add_key_mutex. */
 static int allocate_filesystem_keyring(struct super_block *sb)
 {
@@ -319,91 +299,94 @@ out:
 	return mk;
 }
 
-static int allocate_master_key_users_keyring(struct fscrypt_master_key *mk)
+/* Find the current user's claim in ->mk_users.  ->mk_sem must be held. */
+static struct fscrypt_master_key_user *
+find_master_key_user(struct fscrypt_master_key *mk)
 {
-	char description[FSCRYPT_MK_USERS_DESCRIPTION_SIZE];
-	struct key *keyring;
-
-	format_mk_users_keyring_description(description,
-					    mk->mk_spec.u.identifier);
-	keyring = keyring_alloc(description, GLOBAL_ROOT_UID, GLOBAL_ROOT_GID,
-				current_cred(), KEY_POS_SEARCH |
-				  KEY_USR_SEARCH | KEY_USR_READ | KEY_USR_VIEW,
-				KEY_ALLOC_NOT_IN_QUOTA, NULL, NULL);
-	if (IS_ERR(keyring))
-		return PTR_ERR(keyring);
-
-	mk->mk_users = keyring;
-	return 0;
-}
+	struct fscrypt_master_key_user *mk_user;
+	kuid_t uid = current_fsuid();
 
-/*
- * Find the current user's "key" in the master key's ->mk_users.
- * Returns ERR_PTR(-ENOKEY) if not found.
- */
-static struct key *find_master_key_user(struct fscrypt_master_key *mk)
-{
-	char description[FSCRYPT_MK_USER_DESCRIPTION_SIZE];
-	key_ref_t keyref;
-
-	format_mk_user_description(description, mk->mk_spec.u.identifier);
-
-	/*
-	 * We need to mark the keyring reference as "possessed" so that we
-	 * acquire permission to search it, via the KEY_POS_SEARCH permission.
-	 */
-	keyref = keyring_search(make_key_ref(mk->mk_users, true /*possessed*/),
-				&key_type_fscrypt_user, description, false);
-	if (IS_ERR(keyref)) {
-		if (PTR_ERR(keyref) == -EAGAIN || /* not found */
-		    PTR_ERR(keyref) == -EKEYREVOKED) /* recently invalidated */
-			keyref = ERR_PTR(-ENOKEY);
-		return ERR_CAST(keyref);
+	list_for_each_entry(mk_user, &mk->mk_users, link) {
+		if (uid_eq(mk_user->uid, uid))
+			return mk_user;
 	}
-	return key_ref_to_ptr(keyref);
+	return NULL;
 }
 
 /*
- * Give the current user a "key" in ->mk_users.  This charges the user's quota
+ * Give the current user a claim in ->mk_users.  This charges the user's quota
  * and marks the master key as added by the current user, so that it cannot be
  * removed by another user with the key.  Either ->mk_sem must be held for
  * write, or the master key must be still undergoing initialization.
  */
 static int add_master_key_user(struct fscrypt_master_key *mk)
 {
+	kuid_t uid = current_fsuid();
 	char description[FSCRYPT_MK_USER_DESCRIPTION_SIZE];
-	struct key *mk_user;
+	struct key *quota_key;
+	struct fscrypt_master_key_user *mk_user;
 	int err;
 
-	format_mk_user_description(description, mk->mk_spec.u.identifier);
-	mk_user = key_alloc(&key_type_fscrypt_user, description,
-			    current_fsuid(), current_gid(), current_cred(),
-			    KEY_POS_SEARCH | KEY_USR_VIEW, 0, NULL);
-	if (IS_ERR(mk_user))
-		return PTR_ERR(mk_user);
+	snprintf(description, sizeof(description), "%*phN.uid.%u",
+		 FSCRYPT_KEY_IDENTIFIER_SIZE, mk->mk_spec.u.identifier,
+		 __kuid_val(uid));
+	quota_key = key_alloc(&key_type_fscrypt_user, description, uid,
+			      current_gid(), current_cred(),
+			      KEY_POS_SEARCH | KEY_USR_VIEW, 0, NULL);
+	if (IS_ERR(quota_key))
+		return PTR_ERR(quota_key);
+
+	err = key_instantiate_and_link(quota_key, NULL, 0, NULL, NULL);
+	if (err) {
+		key_put(quota_key);
+		return err;
+	}
 
-	err = key_instantiate_and_link(mk_user, NULL, 0, mk->mk_users, NULL);
-	key_put(mk_user);
-	return err;
+	mk_user = kzalloc(sizeof(*mk_user), GFP_KERNEL);
+	if (!mk_user) {
+		key_put(quota_key);
+		return -ENOMEM;
+	}
+	mk_user->uid = uid;
+	mk_user->quota_key = quota_key;
+	list_add(&mk_user->link, &mk->mk_users);
+	return 0;
+}
+
+static void unlink_and_free_mk_user(struct fscrypt_master_key_user *mk_user)
+{
+	list_del(&mk_user->link);
+	key_put(mk_user->quota_key);
+	kfree(mk_user);
 }
 
 /*
- * Remove the current user's "key" from ->mk_users.
+ * Remove the current user's claim from ->mk_users.
  * ->mk_sem must be held for write.
  *
- * Returns 0 if removed, -ENOKEY if not found, or another -errno code.
+ * Returns 0 if removed or -ENOKEY if not found.
  */
 static int remove_master_key_user(struct fscrypt_master_key *mk)
 {
-	struct key *mk_user;
-	int err;
+	struct fscrypt_master_key_user *mk_user;
 
 	mk_user = find_master_key_user(mk);
-	if (IS_ERR(mk_user))
-		return PTR_ERR(mk_user);
-	err = key_unlink(mk->mk_users, mk_user);
-	key_put(mk_user);
-	return err;
+	if (!mk_user)
+		return -ENOKEY;
+	unlink_and_free_mk_user(mk_user);
+	return 0;
+}
+
+/*
+ * Clear ->mk_users.  Either ->mk_sem must be held for write, or 'mk' must have
+ * no structural references left.
+ */
+static void clear_mk_users(struct fscrypt_master_key *mk)
+{
+	struct fscrypt_master_key_user *mk_user, *tmp;
+
+	list_for_each_entry_safe(mk_user, tmp, &mk->mk_users, link)
+		unlink_and_free_mk_user(mk_user);
 }
 
 /*
@@ -426,13 +409,12 @@ static int add_new_master_key(struct super_block *sb,
 	refcount_set(&mk->mk_struct_refs, 1);
 	mk->mk_spec = *mk_spec;
 
+	INIT_LIST_HEAD(&mk->mk_users);
+
 	INIT_LIST_HEAD(&mk->mk_decrypted_inodes);
 	spin_lock_init(&mk->mk_decrypted_inodes_lock);
 
 	if (mk_spec->type == FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER) {
-		err = allocate_master_key_users_keyring(mk);
-		if (err)
-			goto out_put;
 		err = add_master_key_user(mk);
 		if (err)
 			goto out_put;
@@ -460,19 +442,13 @@ static int add_existing_master_key(struct fscrypt_master_key *mk,
 	int err;
 
 	/*
-	 * If the current user is already in ->mk_users, then there's nothing to
-	 * do.  Otherwise, we need to add the user to ->mk_users.  (Neither is
-	 * applicable for v1 policy keys, which have NULL ->mk_users.)
+	 * For v2 policy keys (FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER): If the current
+	 * user is already in ->mk_users, then there's nothing to do.
+	 * Otherwise, add the user to ->mk_users.
 	 */
-	if (mk->mk_users) {
-		struct key *mk_user = find_master_key_user(mk);
-
-		if (mk_user != ERR_PTR(-ENOKEY)) {
-			if (IS_ERR(mk_user))
-				return PTR_ERR(mk_user);
-			key_put(mk_user);
+	if (mk->mk_spec.type == FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER) {
+		if (find_master_key_user(mk) != NULL)
 			return 0;
-		}
 		err = add_master_key_user(mk);
 		if (err)
 			return err;
@@ -819,7 +795,6 @@ int fscrypt_verify_key_added(struct super_block *sb,
 {
 	struct fscrypt_key_specifier mk_spec;
 	struct fscrypt_master_key *mk;
-	struct key *mk_user;
 	int err;
 
 	mk_spec.type = FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER;
@@ -831,13 +806,10 @@ int fscrypt_verify_key_added(struct super_block *sb,
 		goto out;
 	}
 	down_read(&mk->mk_sem);
-	mk_user = find_master_key_user(mk);
-	if (IS_ERR(mk_user)) {
-		err = PTR_ERR(mk_user);
-	} else {
-		key_put(mk_user);
+	if (find_master_key_user(mk) != NULL)
 		err = 0;
-	}
+	else
+		err = -ENOKEY;
 	up_read(&mk->mk_sem);
 	fscrypt_put_master_key(mk);
 out:
@@ -1030,16 +1002,18 @@ static int do_remove_key(struct file *filp, void __user *_uarg, bool all_users)
 	down_write(&mk->mk_sem);
 
 	/* If relevant, remove current user's (or all users) claim to the key */
-	if (mk->mk_users && mk->mk_users->keys.nr_leaves_on_tree != 0) {
-		if (all_users)
-			err = keyring_clear(mk->mk_users);
-		else
+	if (!list_empty(&mk->mk_users)) {
+		if (all_users) {
+			clear_mk_users(mk);
+			err = 0;
+		} else {
 			err = remove_master_key_user(mk);
+		}
 		if (err) {
 			up_write(&mk->mk_sem);
 			goto out_put_key;
 		}
-		if (mk->mk_users->keys.nr_leaves_on_tree != 0) {
+		if (!list_empty(&mk->mk_users)) {
 			/*
 			 * Other users have still added the key too.  We removed
 			 * the current user's claim to the key, but we still
@@ -1127,6 +1101,8 @@ int fscrypt_ioctl_get_key_status(struct file *filp, void __user *uarg)
 	struct super_block *sb = file_inode(filp)->i_sb;
 	struct fscrypt_get_key_status_arg arg;
 	struct fscrypt_master_key *mk;
+	kuid_t uid;
+	const struct fscrypt_master_key_user *mk_user;
 	int err;
 
 	if (copy_from_user(&arg, uarg, sizeof(arg)))
@@ -1159,19 +1135,13 @@ int fscrypt_ioctl_get_key_status(struct file *filp, void __user *uarg)
 	}
 
 	arg.status = FSCRYPT_KEY_STATUS_PRESENT;
-	if (mk->mk_users) {
-		struct key *mk_user;
 
-		arg.user_count = mk->mk_users->keys.nr_leaves_on_tree;
-		mk_user = find_master_key_user(mk);
-		if (!IS_ERR(mk_user)) {
+	uid = current_fsuid();
+	list_for_each_entry(mk_user, &mk->mk_users, link) {
+		arg.user_count++;
+		if (uid_eq(mk_user->uid, uid))
 			arg.status_flags |=
 				FSCRYPT_KEY_STATUS_FLAG_ADDED_BY_SELF;
-			key_put(mk_user);
-		} else if (mk_user != ERR_PTR(-ENOKEY)) {
-			err = PTR_ERR(mk_user);
-			goto out_release_key;
-		}
 	}
 	err = 0;
 out_release_key:
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index f4456ecb3f8776..2ba184ceb4d7b3 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -505,7 +505,7 @@ int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg)
 		return -EFAULT;
 	policy.version = version;
 
-	if (!inode_owner_or_capable(&nop_mnt_idmap, inode))
+	if (!inode_owner_or_capable(file_mnt_idmap(filp), inode))
 		return -EACCES;
 
 	ret = mnt_want_write_file(filp);
diff --git a/fs/namespace.c b/fs/namespace.c
index 646d9e7d41ee8a..f185de5f5df4a7 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -4050,6 +4050,11 @@ SYSCALL_DEFINE3(fsmount, int, fs_fd, unsigned int, flags,
 		ret = PTR_ERR(newmount.mnt);
 		goto err_unlock;
 	}
+	if (newmount.mnt->mnt_sb->s_flags & SB_NOUSER) {
+		mntput(newmount.mnt);
+		ret = -EINVAL;
+		goto err_unlock;
+	}
 	newmount.dentry = dget(fc->root);
 	newmount.mnt->mnt_flags = mnt_flags;
 
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 42fa7c915e29b9..ce3ab0a9c0ef79 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -10383,6 +10383,7 @@ static void nfs41_free_stateid_release(void *calldata)
 	struct nfs_free_stateid_data *data = calldata;
 	struct nfs_client *clp = data->server->nfs_client;
 
+	nfs_sb_deactive(data->server->super);
 	nfs_put_client(clp);
 	kfree(calldata);
 }
@@ -10424,6 +10425,10 @@ static int nfs41_free_stateid(struct nfs_server *server,
 
 	if (!refcount_inc_not_zero(&clp->cl_count))
 		return -EIO;
+	if (!nfs_sb_active(server->super)) {
+		nfs_put_client(clp);
+		return -EIO;
+	}
 
 	nfs4_state_protect(server->nfs_client, NFS_SP4_MACH_CRED_STATEID,
 		&task_setup.rpc_client, &msg);
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index 93ee57bc82ade9..76316d143aaa28 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1345,7 +1345,8 @@ int ovl_fill_super(struct super_block *sb, struct fs_context *fc)
 	int err;
 
 	err = -EIO;
-	if (WARN_ON(fc->user_ns != current_user_ns()))
+	/* The fscontext fd may have been passed to another user namespace. */
+	if (fc->user_ns != current_user_ns())
 		goto out_err;
 
 	sb->s_d_op = &ovl_dentry_operations;
diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c
index bbde7180a90ac4..6fac7a10759206 100644
--- a/fs/smb/client/sess.c
+++ b/fs/smb/client/sess.c
@@ -271,9 +271,9 @@ int cifs_try_adding_channels(struct cifs_ses *ses)
 				cifs_dbg(VFS, "failed to open extra channel on iface:%pIS rc=%d\n",
 					 &iface->sockaddr,
 					 rc);
-				kref_put(&iface->refcount, release_iface);
 				/* failure to add chan should increase weight */
 				iface->weight_fulfilled++;
+				kref_put(&iface->refcount, release_iface);
 				continue;
 			}
 
diff --git a/fs/tracefs/event_inode.c b/fs/tracefs/event_inode.c
index 36257e1092d6ea..4ac459c7efc3f7 100644
--- a/fs/tracefs/event_inode.c
+++ b/fs/tracefs/event_inode.c
@@ -922,7 +922,7 @@ struct eventfs_inode *eventfs_create_events_dir(const char *name, struct dentry
  */
 static void eventfs_remove_rec(struct eventfs_inode *ei, int level)
 {
-	struct eventfs_inode *ei_child;
+	struct eventfs_inode *ei_child, *tmp;
 
 	/*
 	 * Check recursion depth. It should never be greater than 3:
@@ -935,7 +935,7 @@ static void eventfs_remove_rec(struct eventfs_inode *ei, int level)
 		return;
 
 	/* search for nested folders or files */
-	list_for_each_entry(ei_child, &ei->children, list)
+	list_for_each_entry_safe(ei_child, tmp, &ei->children, list)
 		eventfs_remove_rec(ei_child, level + 1);
 
 	list_del_rcu(&ei->list);
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 74474139fb9ac8..4901f765a14d3e 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -301,9 +301,11 @@ struct hh_cache {
  * We could use other alignment values, but we must maintain the
  * relationship HH alignment <= LL alignment.
  */
-#define LL_RESERVED_SPACE(dev) \
-	((((dev)->hard_header_len + READ_ONCE((dev)->needed_headroom)) \
+#define LL_RESERVED_SPACE_EX(dev, hlen) \
+	((((hlen) + READ_ONCE((dev)->needed_headroom)) \
 	  & ~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
+#define LL_RESERVED_SPACE(dev) \
+	LL_RESERVED_SPACE_EX(dev, (dev)->hard_header_len)
 #define LL_RESERVED_SPACE_EXTRA(dev,extra) \
 	((((dev)->hard_header_len + READ_ONCE((dev)->needed_headroom) + (extra)) \
 	  & ~(HH_DATA_MOD - 1)) + HH_DATA_MOD)
@@ -3197,11 +3199,6 @@ static inline bool dev_validate_header(const struct net_device *dev,
 	if (len < dev->min_header_len)
 		return false;
 
-	if (capable(CAP_SYS_RAWIO)) {
-		memset(ll_header + len, 0, dev->hard_header_len - len);
-		return true;
-	}
-
 	if (dev->header_ops && dev->header_ops->validate)
 		return dev->header_ops->validate(ll_header, len);
 
diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index b98331572ad298..cadae9b2578f1f 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -273,7 +273,7 @@ struct ip_set {
 	/* Number of elements (vs timeout) */
 	u32 elements;
 	/* Size of the dynamic extensions (vs timeout) */
-	size_t ext_size;
+	atomic64_t ext_size;
 	/* Element data size */
 	size_t dsize;
 	/* Offsets to extensions in elements */
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 25d0684d37b3e3..9a2f1e9a94a852 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -209,6 +209,7 @@ struct regulator *__must_check devm_regulator_get_optional(struct device *dev,
 							   const char *id);
 int devm_regulator_get_enable(struct device *dev, const char *id);
 int devm_regulator_get_enable_optional(struct device *dev, const char *id);
+int devm_regulator_get_enable_read_voltage(struct device *dev, const char *id);
 void regulator_put(struct regulator *regulator);
 void devm_regulator_put(struct regulator *regulator);
 
@@ -374,6 +375,12 @@ static inline int devm_regulator_get_enable_optional(struct device *dev,
 	return 0;
 }
 
+static inline int devm_regulator_get_enable_read_voltage(struct device *dev,
+							 const char *id)
+{
+	return -ENODEV;
+}
+
 static inline struct regulator *__must_check
 regulator_get_optional(struct device *dev, const char *id)
 {
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index e15452df9804f6..c38778b0baa059 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -445,13 +445,18 @@ struct tcp_sock {
 	bool	syn_smc;	/* SYN includes SMC */
 #endif
 
-#ifdef CONFIG_TCP_MD5SIG
-/* TCP AF-Specific parts; only used by MD5 Signature support so far */
+#if defined(CONFIG_TCP_MD5SIG) || defined(CONFIG_TCP_AO)
+/* TCP AF-Specific parts; only used by TCP-AO/MD5 Signature support so far */
 	const struct tcp_sock_af_ops	*af_specific;
 
+#ifdef CONFIG_TCP_MD5SIG
 /* TCP MD5 Signature Option information */
 	struct tcp_md5sig_info	__rcu *md5sig_info;
 #endif
+#ifdef CONFIG_TCP_AO
+	struct tcp_ao_info	__rcu *ao_info;
+#endif
+#endif
 
 /* TCP fastopen related information */
 	struct tcp_fastopen_request *fastopen_req;
diff --git a/include/net/act_api.h b/include/net/act_api.h
index 56f49351fd5177..b196134e42059a 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -268,6 +268,25 @@ int tcf_action_check_ctrlact(int action, struct tcf_proto *tp,
 struct tcf_chain *tcf_action_set_ctrlact(struct tc_action *a, int action,
 					 struct tcf_chain *newchain);
 
+/* Range check for a control action supplied by user space.
+ *
+ * This is the same test tcf_action_check_ctrlact() applies to the primary
+ * control action, factored out for the *fallback* control actions
+ * (act_gact's TCA_GACT_PROB.paction and act_police's TCA_POLICE_RESULT),
+ * which must not reach tcf_action_check_ctrlact() because they have no
+ * goto_chain to allocate.  Without it, user space can store kernel-internal
+ * verdicts such as TC_ACT_CONSUMED, which is TC_ACT_VALUE_MAX + 1 and is
+ * deliberately not part of the UAPI value range.
+ */
+static inline bool tcf_action_valid(int action)
+{
+	int opcode = TC_ACT_EXT_OPCODE(action);
+
+	if (!opcode)
+		return action <= TC_ACT_VALUE_MAX;
+	return opcode <= TC_ACT_EXT_OPCODE_MAX || action == TC_ACT_UNSPEC;
+}
+
 #ifdef CONFIG_INET
 DECLARE_STATIC_KEY_FALSE(tcf_frag_xmit_count);
 #endif
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index 0a9b055a8ee114..5db1d088d81958 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -370,8 +370,8 @@ static inline struct inet6_dev *in6_dev_get(const struct net_device *dev)
 
 	rcu_read_lock();
 	idev = rcu_dereference(dev->ip6_ptr);
-	if (idev)
-		refcount_inc(&idev->refcnt);
+	if (idev && !refcount_inc_not_zero(&idev->refcnt))
+		idev = NULL;
 	rcu_read_unlock();
 	return idev;
 }
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 6935ec09af24de..e0077fd28ad1cc 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -24,9 +24,7 @@
 #include <linux/netfilter.h>		/* for union nf_inet_addr */
 #include <linux/ip.h>
 #include <linux/ipv6.h>			/* for struct ipv6hdr */
-#include <net/route.h>
 #include <net/ipv6.h>
-#include <net/ip6_fib.h>
 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
 #include <net/netfilter/nf_conntrack.h>
 #endif
@@ -738,10 +736,11 @@ struct ip_vs_dest {
 
 	/* connection counters and thresholds */
 	atomic_t		activeconns;	/* active connections */
-	atomic_t		inactconns;	/* inactive connections */
+	atomic_t		totalconns;	/* total connections */
 	atomic_t		persistconns;	/* persistent connections */
 	__u32			u_threshold;	/* upper threshold */
 	__u32			l_threshold;	/* lower threshold */
+	__u32			l_threshold_val;/* used lower threshold */
 
 	/* for destination cache */
 	spinlock_t		dst_lock;	/* lock of dst_cache */
@@ -1569,6 +1568,8 @@ static inline void ip_vs_dest_put_and_free(struct ip_vs_dest *dest)
 		kfree(dest);
 }
 
+void ip_vs_dest_update_overload(struct ip_vs_dest *dest, int mode);
+
 /* IPVS sync daemon data and function prototypes
  * (from ip_vs_sync.c)
  */
@@ -1707,7 +1708,7 @@ static inline char ip_vs_fwd_tag(struct ip_vs_conn *cp)
 
 void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
 		    struct ip_vs_conn *cp, int dir, unsigned int toff,
-		    bool has_ports);
+		    bool has_ports, struct ip_vs_iphdr *ciph);
 
 #ifdef CONFIG_IP_VS_IPV6
 void ip_vs_nat_icmp_v6(struct sk_buff *skb, struct ip_vs_protocol *pp,
@@ -1740,30 +1741,23 @@ static inline __wsum ip_vs_check_diff2(__be16 old, __be16 new, __wsum oldsum)
 	return csum_partial(diff, sizeof(diff), oldsum);
 }
 
-static inline bool ip_vs_checksum_needed(struct sk_buff *skb, int af)
+static inline bool ip_vs_checksum_needed(struct sk_buff *skb)
 {
 	/* Checksum unnecessary or already validated? */
 	if (skb_csum_unnecessary(skb))
 		return false;
-	/* LOCAL_OUT ? */
-	if (!skb->dev || skb->dev->flags & IFF_LOOPBACK)
+	/* Locally generated ? */
+	if (!skb->dev)
 		return false;
-	/* !LOCAL_IN (FORWARD) ? */
-	if (af == AF_INET6) {
-		if (!(dst_rt6_info(skb_dst(skb))->rt6i_flags & RTF_LOCAL))
-			return false;
-	} else {
-		if (!(skb_rtable(skb)->rt_flags & RTCF_LOCAL))
-			return false;
-	}
 	return true;
 }
 
 static inline bool ip_vs_checksum_common_check(struct sk_buff *skb,
 					       int offset, int proto, int af)
 {
-	if (!ip_vs_checksum_needed(skb, af))
+	if (!ip_vs_checksum_needed(skb))
 		return true;
+	/* Validate csum even for FORWARD */
 	return !nf_checksum(skb, NF_INET_LOCAL_IN, offset, proto, af);
 }
 
@@ -1874,14 +1868,21 @@ void ip_vs_unregister_hooks(struct netns_ipvs *ipvs, unsigned int af);
 static inline int
 ip_vs_dest_conn_overhead(struct ip_vs_dest *dest)
 {
-	/* We think the overhead of processing active connections is 256
+	/* We think the overhead of processing active connections is 257
 	 * times higher than that of inactive connections in average. (This
-	 * 256 times might not be accurate, we will change it later) We
+	 * 257 times might not be accurate, we will change it later) We
 	 * use the following formula to estimate the overhead now:
-	 *		  dest->activeconns*256 + dest->inactconns
+	 *		  dest->activeconns*256 + dest->totalconns
 	 */
 	return (atomic_read(&dest->activeconns) << 8) +
-		atomic_read(&dest->inactconns);
+		atomic_read(&dest->totalconns);
+}
+
+static inline int
+ip_vs_dest_inactconns(const struct ip_vs_dest *dest)
+{
+	return max(atomic_read(&dest->totalconns) -
+		   atomic_read(&dest->activeconns), 0);
 }
 
 #ifdef CONFIG_IP_VS_PROTO_TCP
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index ccc1c698ed0076..307478c2332234 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -72,6 +72,15 @@ static inline bool tcf_block_non_null_shared(struct tcf_block *block)
 	return block && block->index;
 }
 
+#ifdef CONFIG_NET_CLS_ACT
+DECLARE_STATIC_KEY_FALSE(tcf_sw_enabled_key);
+
+static inline bool tcf_block_bypass_sw(struct tcf_block *block)
+{
+	return block && !atomic_read(&block->useswcnt);
+}
+#endif
+
 static inline struct Qdisc *tcf_block_q(struct tcf_block *block)
 {
 	WARN_ON(tcf_block_shared(block));
@@ -750,6 +759,15 @@ tc_cls_common_offload_init(struct flow_cls_common_offload *cls_common,
 		cls_common->extack = extack;
 }
 
+static inline void tcf_proto_update_usesw(struct tcf_proto *tp, u32 flags)
+{
+	if (tp->usesw)
+		return;
+	if (tc_skip_sw(flags) && tc_in_hw(flags))
+		return;
+	tp->usesw = true;
+}
+
 #if IS_ENABLED(CONFIG_NET_TC_SKB_EXT)
 static inline struct tc_skb_ext *tc_skb_ext_alloc(struct sk_buff *skb)
 {
diff --git a/include/net/route.h b/include/net/route.h
index 22d8095a3a81e9..1d5d975c1707ff 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -244,6 +244,8 @@ int fib_dump_info_fnhe(struct sk_buff *skb, struct netlink_callback *cb,
 		       u32 table_id, struct fib_info *fi,
 		       int *fa_index, int fa_start, unsigned int flags);
 
+void fnhe_update_pmtu(struct fib_nh_exception *fnhe, u32 new, u32 orig);
+
 static inline void ip_rt_put(struct rtable *rt)
 {
 	/* dst_release() accepts a NULL parameter.
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 385af747b0b4e0..8ad29d2c210abd 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -100,6 +100,7 @@ struct Qdisc {
 	struct hlist_node       hash;
 	u32			handle;
 	u32			parent;
+	int			depth;
 
 	struct netdev_queue	*dev_queue;
 
@@ -429,6 +430,8 @@ struct tcf_proto {
 	 */
 	spinlock_t		lock;
 	bool			deleting;
+	bool			counted;
+	bool			usesw;
 	refcount_t		refcnt;
 	struct rcu_head		rcu;
 	struct hlist_node	destroy_ht_node;
@@ -477,6 +480,7 @@ struct tcf_block {
 	struct flow_block flow_block;
 	struct list_head owner_list;
 	bool keep_dst;
+	atomic_t useswcnt;
 	atomic_t offloadcnt; /* Number of oddloaded filters */
 	unsigned int nooffloaddevcnt; /* Number of devs unable to do offload */
 	unsigned int lockeddevcnt; /* Number of devs that require rtnl lock. */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index a6def0aab3ed31..0eb9341f748887 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -37,6 +37,7 @@
 #include <net/snmp.h>
 #include <net/ip.h>
 #include <net/tcp_states.h>
+#include <net/tcp_ao.h>
 #include <net/inet_ecn.h>
 #include <net/dst.h>
 #include <net/mptcp.h>
@@ -1681,12 +1682,7 @@ static inline void tcp_clear_all_retrans_hints(struct tcp_sock *tp)
 	tp->retransmit_skb_hint = NULL;
 }
 
-union tcp_md5_addr {
-	struct in_addr  a4;
-#if IS_ENABLED(CONFIG_IPV6)
-	struct in6_addr	a6;
-#endif
-};
+#define tcp_md5_addr tcp_ao_addr
 
 /* - key database */
 struct tcp_md5sig_key {
@@ -1730,12 +1726,39 @@ union tcp_md5sum_block {
 #endif
 };
 
-/* - pool: digest algorithm, hash description and scratch buffer */
-struct tcp_md5sig_pool {
-	struct ahash_request	*md5_req;
-	void			*scratch;
+/*
+ * struct tcp_sigpool - per-CPU pool of ahash_requests
+ * @scratch: per-CPU temporary area, that can be used between
+ *	     tcp_sigpool_start() and tcp_sigpool_end() to perform
+ *	     crypto request
+ * @req: pre-allocated ahash request
+ */
+struct tcp_sigpool {
+	void *scratch;
+	struct ahash_request *req;
 };
 
+int tcp_sigpool_alloc_ahash(const char *alg, size_t scratch_size);
+void tcp_sigpool_get(unsigned int id);
+void tcp_sigpool_release(unsigned int id);
+int tcp_sigpool_hash_skb_data(struct tcp_sigpool *hp,
+			      const struct sk_buff *skb,
+			      unsigned int header_len);
+
+/**
+ * tcp_sigpool_start - disable bh and start using tcp_sigpool_ahash
+ * @id: tcp_sigpool that was previously allocated by tcp_sigpool_alloc_ahash()
+ * @c: returned tcp_sigpool for usage (uninitialized on failure)
+ *
+ * Returns 0 on success, error otherwise.
+ */
+int tcp_sigpool_start(unsigned int id, struct tcp_sigpool *c);
+/**
+ * tcp_sigpool_end - enable bh and stop using tcp_sigpool
+ * @c: tcp_sigpool context that was returned by tcp_sigpool_start()
+ */
+void tcp_sigpool_end(struct tcp_sigpool *c);
+size_t tcp_sigpool_algo(unsigned int id, char *buf, size_t buf_len);
 /* - functions */
 int tcp_v4_md5_hash_skb(char *md5_hash, const struct tcp_md5sig_key *key,
 			const struct sock *sk, const struct sk_buff *skb);
@@ -1791,17 +1814,12 @@ tcp_inbound_md5_hash(const struct sock *sk, const struct sk_buff *skb,
 #define tcp_twsk_md5_key(twsk)	NULL
 #endif
 
-bool tcp_alloc_md5sig_pool(void);
-
-struct tcp_md5sig_pool *tcp_get_md5sig_pool(void);
-static inline void tcp_put_md5sig_pool(void)
-{
-	local_bh_enable();
-}
+int tcp_md5_alloc_sigpool(void);
+void tcp_md5_release_sigpool(void);
+void tcp_md5_add_sigpool(void);
+extern int tcp_md5_sigpool_id;
 
-int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *, const struct sk_buff *,
-			  unsigned int header_len);
-int tcp_md5_hash_key(struct tcp_md5sig_pool *hp,
+int tcp_md5_hash_key(struct tcp_sigpool *hp,
 		     const struct tcp_md5sig_key *key);
 
 /* From tcp_fastopen.c */
diff --git a/include/net/tcp_ao.h b/include/net/tcp_ao.h
new file mode 100644
index 00000000000000..af76e1c47bea9c
--- /dev/null
+++ b/include/net/tcp_ao.h
@@ -0,0 +1,90 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _TCP_AO_H
+#define _TCP_AO_H
+
+#define TCP_AO_KEY_ALIGN	1
+#define __tcp_ao_key_align __aligned(TCP_AO_KEY_ALIGN)
+
+union tcp_ao_addr {
+	struct in_addr  a4;
+#if IS_ENABLED(CONFIG_IPV6)
+	struct in6_addr	a6;
+#endif
+};
+
+struct tcp_ao_hdr {
+	u8	kind;
+	u8	length;
+	u8	keyid;
+	u8	rnext_keyid;
+};
+
+struct tcp_ao_key {
+	struct hlist_node	node;
+	union tcp_ao_addr	addr;
+	u8			key[TCP_AO_MAXKEYLEN] __tcp_ao_key_align;
+	unsigned int		tcp_sigpool_id;
+	unsigned int		digest_size;
+	u8			prefixlen;
+	u8			family;
+	u8			keylen;
+	u8			keyflags;
+	u8			sndid;
+	u8			rcvid;
+	u8			maclen;
+	struct rcu_head		rcu;
+	u8			traffic_keys[];
+};
+
+static inline u8 *rcv_other_key(struct tcp_ao_key *key)
+{
+	return key->traffic_keys;
+}
+
+static inline u8 *snd_other_key(struct tcp_ao_key *key)
+{
+	return key->traffic_keys + key->digest_size;
+}
+
+static inline int tcp_ao_maclen(const struct tcp_ao_key *key)
+{
+	return key->maclen;
+}
+
+static inline int tcp_ao_len(const struct tcp_ao_key *key)
+{
+	return tcp_ao_maclen(key) + sizeof(struct tcp_ao_hdr);
+}
+
+static inline unsigned int tcp_ao_digest_size(struct tcp_ao_key *key)
+{
+	return key->digest_size;
+}
+
+static inline int tcp_ao_sizeof_key(const struct tcp_ao_key *key)
+{
+	return sizeof(struct tcp_ao_key) + (key->digest_size << 1);
+}
+
+struct tcp_ao_info {
+	/* List of tcp_ao_key's */
+	struct hlist_head	head;
+	/* current_key and rnext_key aren't maintained on listen sockets.
+	 * Their purpose is to cache keys on established connections,
+	 * saving needless lookups. Never dereference any of them from
+	 * listen sockets.
+	 * ::current_key may change in RX to the key that was requested by
+	 * the peer, please use READ_ONCE()/WRITE_ONCE() in order to avoid
+	 * load/store tearing.
+	 * Do the same for ::rnext_key, if you don't hold socket lock
+	 * (it's changed only by userspace request in setsockopt()).
+	 */
+	struct tcp_ao_key	*current_key;
+	struct tcp_ao_key	*rnext_key;
+	u32			flags;
+	__be32			lisn;
+	__be32			risn;
+	struct rcu_head		rcu;
+};
+
+#endif /* _TCP_AO_H */
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index d1d08da6331ab5..bf93a80809d6ad 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -360,6 +360,8 @@ struct tcp_diag_md5sig {
 	__u8	tcpm_key[TCP_MD5SIG_MAXKEYLEN];
 };
 
+#define TCP_AO_MAXKEYLEN	80
+
 /* setsockopt(fd, IPPROTO_TCP, TCP_ZEROCOPY_RECEIVE, ...) */
 
 #define TCP_RECEIVE_ZEROCOPY_FLAG_TLB_CLEAN_HINT 0x1
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 5e094c12fc94c5..ad679bc42427c8 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -12657,11 +12657,12 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env,
 		break;
 	}
 
-	/* In case of 'scalar += pointer', dst_reg inherits pointer type and id.
-	 * The id may be overwritten later if we create a new variable offset.
+	/* For 'scalar += pointer', dst_reg inherits the complete pointer
+	 * register state. Individual fields may be adjusted later by pointer
+	 * arithmetic. Callers guarantee that below does not overwrite off_reg.
 	 */
-	dst_reg->type = ptr_reg->type;
-	dst_reg->id = ptr_reg->id;
+	if (dst_reg != ptr_reg)
+		*dst_reg = *ptr_reg;
 
 	if (!check_reg_sane_offset(env, off_reg, ptr_reg->type) ||
 	    !check_reg_sane_offset(env, ptr_reg, ptr_reg->type))
@@ -12729,7 +12730,7 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env,
 		}
 		break;
 	case BPF_SUB:
-		if (dst_reg == off_reg) {
+		if (dst_reg != ptr_reg) {
 			/* scalar -= pointer.  Creates an unknown scalar */
 			verbose(env, "R%d tried to subtract pointer from scalar\n",
 				dst);
@@ -13588,8 +13589,8 @@ static int adjust_reg_min_max_vals(struct bpf_verifier_env *env,
 				err = mark_chain_precision(env, insn->dst_reg);
 				if (err)
 					return err;
-				return adjust_ptr_min_max_vals(env, insn,
-							       src_reg, dst_reg);
+				off_reg = *dst_reg;
+				return adjust_ptr_min_max_vals(env, insn, src_reg, &off_reg);
 			}
 		} else if (ptr_reg) {
 			/* pointer += scalar */
diff --git a/kernel/futex/core.c b/kernel/futex/core.c
index f30a93e50f65e8..660d7061740b8a 100644
--- a/kernel/futex/core.c
+++ b/kernel/futex/core.c
@@ -660,8 +660,11 @@ retry:
 		return -1;
 
 	/*
-	 * Special case for regular (non PI) futexes. The unlock path in
-	 * user space has two race scenarios:
+	 * Special case for regular (non PI) futexes. Ordinarily, we do
+	 * not perform any processing here unless the current thread was
+	 * the owner of the futex (by the TID check below).
+	 *
+	 * However, the unlock path has three race scenarios:
 	 *
 	 * 1. The unlock path releases the user space futex value and
 	 *    before it can execute the futex() syscall to wake up
@@ -670,41 +673,68 @@ retry:
 	 * 2. A woken up waiter is killed before it can acquire the
 	 *    futex in user space.
 	 *
-	 * In the second case, the wake up notification could be generated
-	 * by the unlock path in user space after setting the futex value
-	 * to zero or by the kernel after setting the OWNER_DIED bit below.
+	 * 3. A woken up waiter is killed in user space after another
+	 *    thread has acquired the futex, but before it can set
+	 *    FUTEX_WAITERS.
+	 *
+	 * Note that, if userspace uses the FUTEX_ROBUST_UNLOCK flag, we
+	 * will not see case 1 here.
+	 *
+	 * In the second and third case, the wake up notification could
+	 * be generated from any of:
+	 *
+	 *    i.   An ordinary futex wakeup after unlock (with or
+	 *         without FUTEX_ROBUST_UNLOCK)
+	 *    ii.  A robust wakeup from another thread's death
+	 *    iii. A previous round through this special case
+	 *
+	 * As a result, the futex world will be in one of four states:
 	 *
-	 * In both cases the TID validation below prevents a wakeup of
-	 * potential waiters which can cause these waiters to block
-	 * forever.
+	 *    A. The futex word is 0 (unlocked)
+	 *    B. The futex word is owned by another thread
+	 *       (FUTEX_WAITERS is not set)
+	 *    C. The futex word is owned by another thread
+	 *       (FUTEX_WAITERS set)
+	 *    D. The futex's owner died and OWNER_DIED is set
+	 *       (the owner part of the word is 0)
 	 *
-	 * In both cases the following conditions are met:
+	 * The key issue is that the kernel usually (at least from
+	 * sources ii. and iii. or when so requested by userspace from
+	 * source i.) only ever wakes *one* waiter at a time. If this
+	 * waiter dies before acquiring the futex (or setting the
+	 * FUTEX_WAITERS bit), the kernel *must* still wake the next
+	 * waiter down the line to uphold the futex invariants and
+	 * avoid lost wakeups. Note we do not need to handle state C,
+	 * as it does not matter to us whether *we* successfully set
+	 * the bit or a third thread did so in the meantime.
 	 *
-	 *	1) task->robust_list->list_op_pending != NULL
-	 *	   @pending_op == true
-	 *	2) The owner part of user space futex value == 0
+	 * Therefore, in these cases we must issue an additional
+	 * futex_wake(). Note however that we *must not* set OWNER_DIED
+	 * here. Our thread is *not* the owner of the futex.
+	 *
+	 * Thus to summarize, the conditions for needing the additional
+	 * futex_wake() are:
+	 *
+	 *	1) @pending_op == true (the thread has not finished the
+	 *	   mutex operation)
+	 *	2) The futex word is in one of the states A, B or D
 	 *	3) Regular futex: @pi == false
 	 *
-	 * If these conditions are met, it is safe to attempt waking up a
-	 * potential waiter without touching the user space futex value and
-	 * trying to set the OWNER_DIED bit. If the futex value is zero,
-	 * the rest of the user space mutex state is consistent, so a woken
-	 * waiter will just take over the uncontended futex. Setting the
-	 * OWNER_DIED bit would create inconsistent state and malfunction
-	 * of the user space owner died handling. Otherwise, the OWNER_DIED
-	 * bit is already set, and the woken waiter is expected to deal with
-	 * this.
+	 * Note in particular that in all of the states A-D the owner
+	 * portion of the futex word differs from our thread's TID
+	 * (unless the actual owner has the same TID in another PID
+	 * namespace, but we cannot currently distinguish that
+	 * scenario), so this can be a special-case wakeup in the bail
+	 * path of the ordinary TID check.
 	 */
 	owner = uval & FUTEX_TID_MASK;
 
-	if (pending_op && !pi && !owner) {
-		futex_wake(uaddr, 1, 1, FUTEX_BITSET_MATCH_ANY);
+	if (owner != task_pid_vnr(curr)) {
+		if (pending_op && !pi && (!owner || !(uval & FUTEX_WAITERS)))
+			futex_wake(uaddr, 1, 1, FUTEX_BITSET_MATCH_ANY);
 		return 0;
 	}
 
-	if (owner != task_pid_vnr(curr))
-		return 0;
-
 	/*
 	 * Ok, this dying thread is truly holding a futex
 	 * of interest. Set the OWNER_DIED bit atomically
diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
index 08a9a9f909d518..b7a2fd895eb5ec 100644
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@ -1138,6 +1138,12 @@ void psi_cgroup_free(struct cgroup *cgroup)
 		return;
 
 	cancel_delayed_work_sync(&cgroup->psi->avgs_work);
+	/*
+	 * A psi_schedule_rtpoll_work() call racing the last trigger's
+	 * destruction may have re-armed the timer after psi_trigger_destroy()
+	 * deleted it. Spurious firing while the group is alive is harmless.
+	 */
+	timer_shutdown_sync(&cgroup->psi->rtpoll_timer);
 	free_percpu(cgroup->psi->pcpu);
 	/* All triggers must be removed by now */
 	WARN_ONCE(cgroup->psi->rtpoll_states, "psi: trigger leak\n");
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 0f761bca5135de..0b2ed121741e15 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -6090,7 +6090,7 @@ static __init int test_ringbuffer(void)
 
  out_free:
 	for_each_online_cpu(cpu) {
-		if (!rb_threads[cpu])
+		if (IS_ERR_OR_NULL(rb_threads[cpu]))
 			break;
 		kthread_stop(rb_threads[cpu]);
 	}
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 9588344ef8f7b6..bd8167d006f91f 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -3038,6 +3038,7 @@ void trace_event_eval_update(struct trace_eval_map **map, int len)
 	int last_i;
 	int i;
 
+	mutex_lock(&event_mutex);
 	down_write(&trace_event_sem);
 	list_for_each_entry_safe(call, p, &ftrace_events, list) {
 		/* events are usually grouped together with systems */
@@ -3071,6 +3072,7 @@ void trace_event_eval_update(struct trace_eval_map **map, int len)
 		cond_resched();
 	}
 	up_write(&trace_event_sem);
+	mutex_unlock(&event_mutex);
 }
 
 static bool event_in_systems(struct trace_event_call *call,
diff --git a/lib/.gitignore b/lib/.gitignore
index 54596b634ecbff..101a4aa92fb537 100644
--- a/lib/.gitignore
+++ b/lib/.gitignore
@@ -5,5 +5,3 @@
 /gen_crc32table
 /gen_crc64table
 /oid_registry_data.c
-/test_fortify.log
-/test_fortify/*.log
diff --git a/lib/Makefile b/lib/Makefile
index b9d2577fbbe190..62737ad5aa74ed 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -407,36 +407,4 @@ CFLAGS_longest_symbol_kunit.o += $(call cc-disable-warning, missing-prototypes)
 
 obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o
 
-# FORTIFY_SOURCE compile-time behavior tests
-TEST_FORTIFY_SRCS = $(wildcard $(srctree)/$(src)/test_fortify/*-*.c)
-TEST_FORTIFY_LOGS = $(patsubst $(srctree)/$(src)/%.c, %.log, $(TEST_FORTIFY_SRCS))
-TEST_FORTIFY_LOG = test_fortify.log
-
-quiet_cmd_test_fortify = TEST    $@
-      cmd_test_fortify = $(CONFIG_SHELL) $(srctree)/scripts/test_fortify.sh \
-			$< $@ "$(NM)" $(CC) $(c_flags) \
-			$(call cc-disable-warning,fortify-source) \
-			-DKBUILD_EXTRA_WARN1
-
-targets += $(TEST_FORTIFY_LOGS)
-clean-files += $(TEST_FORTIFY_LOGS)
-clean-files += $(addsuffix .o, $(TEST_FORTIFY_LOGS))
-$(obj)/test_fortify/%.log: $(src)/test_fortify/%.c \
-			   $(src)/test_fortify/test_fortify.h \
-			   $(srctree)/include/linux/fortify-string.h \
-			   $(srctree)/scripts/test_fortify.sh \
-			   FORCE
-	$(call if_changed,test_fortify)
-
-quiet_cmd_gen_fortify_log = GEN     $@
-      cmd_gen_fortify_log = cat </dev/null $(filter-out FORCE,$^) 2>/dev/null > $@ || true
-
-targets += $(TEST_FORTIFY_LOG)
-clean-files += $(TEST_FORTIFY_LOG)
-$(obj)/$(TEST_FORTIFY_LOG): $(addprefix $(obj)/, $(TEST_FORTIFY_LOGS)) FORCE
-	$(call if_changed,gen_fortify_log)
-
-# Fake dependency to trigger the fortify tests.
-ifeq ($(CONFIG_FORTIFY_SOURCE),y)
-$(obj)/string.o: $(obj)/$(TEST_FORTIFY_LOG)
-endif
+subdir-$(CONFIG_FORTIFY_SOURCE) += test_fortify
diff --git a/lib/test_fortify/.gitignore b/lib/test_fortify/.gitignore
new file mode 100644
index 00000000000000..c1ba37d14b50e3
--- /dev/null
+++ b/lib/test_fortify/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+/*.log
diff --git a/lib/test_fortify/Makefile b/lib/test_fortify/Makefile
new file mode 100644
index 00000000000000..eba2ba0faeb6a4
--- /dev/null
+++ b/lib/test_fortify/Makefile
@@ -0,0 +1,29 @@
+# SPDX-License-Identifier: GPL-2.0
+
+ccflags-y := $(call cc-disable-warning,fortify-source)
+ccflags-y += $(call cc-disable-warning,stringop-overread)
+
+quiet_cmd_test_fortify = TEST    $@
+      cmd_test_fortify = $(CONFIG_SHELL) $(srctree)/scripts/test_fortify.sh \
+			$< $@ "$(NM)" $(CC) $(c_flags) -DKBUILD_EXTRA_WARN1
+
+$(obj)/%.log: $(src)/%.c $(srctree)/scripts/test_fortify.sh \
+	      $(src)/test_fortify.h \
+	      $(srctree)/include/linux/fortify-string.h \
+	      FORCE
+	$(call if_changed,test_fortify)
+
+logs = $(patsubst $(srctree)/$(src)/%.c, %.log, $(wildcard $(srctree)/$(src)/*-*.c))
+targets += $(logs)
+
+quiet_cmd_gen_fortify_log = CAT     $@
+      cmd_gen_fortify_log = cat $(or $(real-prereqs),/dev/null) > $@
+
+$(obj)/test_fortify.log: $(addprefix $(obj)/, $(logs)) FORCE
+	$(call if_changed,gen_fortify_log)
+
+always-y += test_fortify.log
+
+# Some architectures define __NO_FORTIFY if __SANITIZE_ADDRESS__ is undefined.
+# Pass CFLAGS_KASAN to avoid warnings.
+KASAN_SANITIZE := y
diff --git a/net/atm/common.c b/net/atm/common.c
index 96f680a45e306d..f3f68c231935aa 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -760,7 +760,7 @@ int vcc_setsockopt(struct socket *sock, int level, int optname,
 		   sockptr_t optval, unsigned int optlen)
 {
 	struct atm_vcc *vcc;
-	unsigned long value;
+	int value;
 	int error;
 
 	if (__SO_LEVEL_MATCH(optname, level) && optlen != __SO_SIZE(optname))
@@ -772,8 +772,10 @@ int vcc_setsockopt(struct socket *sock, int level, int optname,
 	{
 		struct atm_qos qos;
 
-		if (copy_from_sockptr(&qos, optval, sizeof(qos)))
-			return -EFAULT;
+		error = copy_safe_from_sockptr(&qos, sizeof(qos), optval,
+					       optlen);
+		if (error)
+			return error;
 		error = check_qos(&qos);
 		if (error)
 			return error;
@@ -786,8 +788,10 @@ int vcc_setsockopt(struct socket *sock, int level, int optname,
 		return 0;
 	}
 	case SO_SETCLP:
-		if (copy_from_sockptr(&value, optval, sizeof(value)))
-			return -EFAULT;
+		error = copy_safe_from_sockptr(&value, sizeof(value), optval,
+					       optlen);
+		if (error)
+			return error;
 		if (value)
 			vcc->atm_options |= ATM_ATMOPT_CLP;
 		else
diff --git a/net/bridge/br_mrp.c b/net/bridge/br_mrp.c
index 5fd22bb4f5b604..a837ff7d6f36d9 100644
--- a/net/bridge/br_mrp.c
+++ b/net/bridge/br_mrp.c
@@ -224,11 +224,9 @@ static struct sk_buff *br_mrp_alloc_test_skb(struct br_mrp *mrp,
 		sub_opt = skb_put(skb, sizeof(*sub_opt));
 		memset(sub_opt, 0x0, sizeof(*sub_opt));
 
-		sub_tlv = skb_put(skb, sizeof(*sub_tlv));
-		sub_tlv->type = BR_MRP_SUB_TLV_HEADER_TEST_AUTO_MGR;
-
 		/* 32 bit alligment shall be ensured therefore add 2 bytes */
-		skb_put(skb, MRP_OPT_PADDING);
+		sub_tlv = skb_put_zero(skb, sizeof(*sub_tlv) + MRP_OPT_PADDING);
+		sub_tlv->type = BR_MRP_SUB_TLV_HEADER_TEST_AUTO_MGR;
 	}
 
 	br_mrp_skb_tlv(skb, BR_MRP_TLV_HEADER_END, 0x0);
diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c
index 61bf8f4465ab7d..426f8adc912c75 100644
--- a/net/bridge/netfilter/ebt_nflog.c
+++ b/net/bridge/netfilter/ebt_nflog.c
@@ -41,11 +41,25 @@ ebt_nflog_tg(struct sk_buff *skb, const struct xt_action_param *par)
 static int ebt_nflog_tg_check(const struct xt_tgchk_param *par)
 {
 	struct ebt_nflog_info *info = par->targinfo;
+	int ret;
 
 	if (info->flags & ~EBT_NFLOG_MASK)
 		return -EINVAL;
 	info->prefix[EBT_NFLOG_PREFIX_SIZE - 1] = '\0';
-	return 0;
+
+	ret = nf_logger_find_get(par->family, NF_LOG_TYPE_ULOG);
+	if (ret != 0 && !par->nft_compat) {
+		request_module("%s", "nfnetlink_log");
+
+		ret = nf_logger_find_get(par->family, NF_LOG_TYPE_ULOG);
+	}
+
+	return ret;
+}
+
+static void ebt_nflog_tg_destroy(const struct xt_tgdtor_param *par)
+{
+	nf_logger_put(par->family, NF_LOG_TYPE_ULOG);
 }
 
 static struct xt_target ebt_nflog_tg_reg __read_mostly = {
@@ -54,6 +68,7 @@ static struct xt_target ebt_nflog_tg_reg __read_mostly = {
 	.family     = NFPROTO_BRIDGE,
 	.target     = ebt_nflog_tg,
 	.checkentry = ebt_nflog_tg_check,
+	.destroy    = ebt_nflog_tg_destroy,
 	.targetsize = sizeof(struct ebt_nflog_info),
 	.me         = THIS_MODULE,
 };
diff --git a/net/bridge/netfilter/nf_conntrack_bridge.c b/net/bridge/netfilter/nf_conntrack_bridge.c
index 4b4a396d972259..8834a45f697b8d 100644
--- a/net/bridge/netfilter/nf_conntrack_bridge.c
+++ b/net/bridge/netfilter/nf_conntrack_bridge.c
@@ -281,6 +281,7 @@ static unsigned int nf_ct_bridge_pre(void *priv, struct sk_buff *skb,
 		ret = nf_ct_br_defrag6(skb, &bridge_state);
 		break;
 	default:
+		nf_reset_ct(skb);
 		nf_ct_set(skb, NULL, IP_CT_UNTRACKED);
 		return NF_ACCEPT;
 	}
diff --git a/net/core/dev.c b/net/core/dev.c
index 0cc03e6c6fb144..0fa5431de2cc09 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2146,6 +2146,11 @@ void net_dec_egress_queue(void)
 EXPORT_SYMBOL_GPL(net_dec_egress_queue);
 #endif
 
+#ifdef CONFIG_NET_CLS_ACT
+DEFINE_STATIC_KEY_FALSE(tcf_sw_enabled_key);
+EXPORT_SYMBOL(tcf_sw_enabled_key);
+#endif
+
 DEFINE_STATIC_KEY_FALSE(netstamp_needed_key);
 EXPORT_SYMBOL(netstamp_needed_key);
 #ifdef CONFIG_JUMP_LABEL
@@ -4030,6 +4035,14 @@ static int tc_run(struct tcx_entry *entry, struct sk_buff *skb)
 	if (!miniq)
 		return ret;
 
+	/* Global bypass */
+	if (!static_branch_likely(&tcf_sw_enabled_key))
+		return ret;
+
+	/* Block-wise bypass */
+	if (tcf_block_bypass_sw(miniq->block))
+		return ret;
+
 	tc_skb_cb(skb)->mru = 0;
 	tc_skb_cb(skb)->post_ct = false;
 
diff --git a/net/core/sock.c b/net/core/sock.c
index 87e6060c8bca7f..846e95805c1996 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -776,7 +776,6 @@ bool sk_mc_loop(struct sock *sk)
 		return inet6_sk(sk)->mc_loop;
 #endif
 	}
-	WARN_ON_ONCE(1);
 	return true;
 }
 EXPORT_SYMBOL(sk_mc_loop);
diff --git a/net/core/xdp.c b/net/core/xdp.c
index 5ee3f8f165e5aa..f640576090f207 100644
--- a/net/core/xdp.c
+++ b/net/core/xdp.c
@@ -674,7 +674,7 @@ struct xdp_frame *xdpf_clone(struct xdp_frame *xdpf)
 	headroom = xdpf->headroom + sizeof(*xdpf);
 	totalsize = headroom + xdpf->len;
 
-	if (unlikely(totalsize > PAGE_SIZE))
+	if (unlikely(totalsize > SKB_WITH_OVERHEAD(PAGE_SIZE)))
 		return NULL;
 	page = dev_alloc_page();
 	if (!page)
diff --git a/net/devlink/dev.c b/net/devlink/dev.c
index bba4ace7d22ba8..c70d4dc599b85d 100644
--- a/net/devlink/dev.c
+++ b/net/devlink/dev.c
@@ -505,6 +505,7 @@ int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
 		    action != DEVLINK_RELOAD_ACTION_DRIVER_REINIT) {
 			NL_SET_ERR_MSG_MOD(info->extack,
 					   "Changing namespace is only supported for reinit action");
+			put_net(dest_net);
 			return -EOPNOTSUPP;
 		}
 	}
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 2dfb12230f0894..8e94ed7c56a0ea 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -741,10 +741,27 @@ config DEFAULT_TCP_CONG
 	default "bbr" if DEFAULT_BBR
 	default "cubic"
 
+config TCP_SIGPOOL
+	tristate
+
+config TCP_AO
+	bool "TCP: Authentication Option (RFC5925)"
+	select CRYPTO
+	select TCP_SIGPOOL
+	depends on 64BIT && IPV6 != m # seq-number extension needs WRITE_ONCE(u64)
+	help
+	  TCP-AO specifies the use of stronger Message Authentication Codes (MACs),
+	  protects against replays for long-lived TCP connections, and
+	  provides more details on the association of security with TCP
+	  connections than TCP MD5 (See RFC5925)
+
+	  If unsure, say N.
+
 config TCP_MD5SIG
 	bool "TCP: MD5 Signature Option support (RFC2385)"
 	select CRYPTO
 	select CRYPTO_MD5
+	select TCP_SIGPOOL
 	help
 	  RFC2385 specifies a method of giving MD5 protection to TCP sessions.
 	  Its main (only?) use is to protect BGP sessions between core routers
diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile
index b18ba8ef93ad2b..cd760793cfcbae 100644
--- a/net/ipv4/Makefile
+++ b/net/ipv4/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_TCP_CONG_SCALABLE) += tcp_scalable.o
 obj-$(CONFIG_TCP_CONG_LP) += tcp_lp.o
 obj-$(CONFIG_TCP_CONG_YEAH) += tcp_yeah.o
 obj-$(CONFIG_TCP_CONG_ILLINOIS) += tcp_illinois.o
+obj-$(CONFIG_TCP_SIGPOOL) += tcp_sigpool.o
 obj-$(CONFIG_NET_SOCK_MSG) += tcp_bpf.o
 obj-$(CONFIG_BPF_SYSCALL) += udp_bpf.o
 obj-$(CONFIG_NETLABEL) += cipso_ipv4.o
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 233d9d0437c278..facbda1ff51d74 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -462,6 +462,34 @@ int ip_fib_check_default(__be32 gw, struct net_device *dev)
 	return -1;
 }
 
+static size_t fib_nexthop_nlmsg_size(const struct fib_nh_common *nhc,
+				     bool skip_oif)
+{
+	size_t nhsize = 0;
+
+	switch (nhc->nhc_gw_family) {
+	case AF_INET:
+		nhsize += nla_total_size(4); /* RTA_GATEWAY */
+		break;
+	case AF_INET6:
+		nhsize += nla_total_size(sizeof(struct rtvia) +
+					 sizeof(struct in6_addr));
+		break;
+	}
+
+	if (!skip_oif && nhc->nhc_dev)
+		nhsize += nla_total_size(4); /* RTA_OIF */
+
+	if (nhc->nhc_lwtstate) {
+		/* RTA_ENCAP */
+		nhsize += lwtunnel_get_encap_size(nhc->nhc_lwtstate);
+		/* RTA_ENCAP_TYPE */
+		nhsize += nla_total_size(2);
+	}
+
+	return nhsize;
+}
+
 size_t fib_nlmsg_size(struct fib_info *fi)
 {
 	size_t payload = NLMSG_ALIGN(sizeof(struct rtmsg))
@@ -479,32 +507,35 @@ size_t fib_nlmsg_size(struct fib_info *fi)
 		payload += nla_total_size(4); /* RTA_NH_ID */
 
 	if (nhs) {
-		size_t nh_encapsize = 0;
-		/* Also handles the special case nhs == 1 */
-
-		/* each nexthop is packed in an attribute */
-		size_t nhsize = nla_total_size(sizeof(struct rtnexthop));
+		size_t mpsize = 0;
 		unsigned int i;
 
-		/* may contain flow and gateway attribute */
-		nhsize += 2 * nla_total_size(4);
-
-		/* grab encap info */
 		for (i = 0; i < fib_info_num_path(fi); i++) {
 			struct fib_nh_common *nhc = fib_info_nhc(fi, i);
+			size_t nhsize;
+
+			nhsize = fib_nexthop_nlmsg_size(nhc, nhs != 1);
+
+			if (nhs != 1)
+				nhsize += NLA_ALIGN(sizeof(struct rtnexthop));
+
+#ifdef CONFIG_IP_ROUTE_CLASSID
+			if (nhc->nhc_family == AF_INET) {
+				struct fib_nh *nh;
 
-			if (nhc->nhc_lwtstate) {
-				/* RTA_ENCAP_TYPE */
-				nh_encapsize += lwtunnel_get_encap_size(
-						nhc->nhc_lwtstate);
-				/* RTA_ENCAP */
-				nh_encapsize +=  nla_total_size(2);
+				nh = container_of(nhc, struct fib_nh, nh_common);
+				if (nh->nh_tclassid)
+					nhsize += nla_total_size(4);
 			}
+#endif
+			if (nhs == 1)
+				payload += nhsize;
+			else
+				mpsize += nhsize;
 		}
 
-		/* all nexthops are packed in a nested attribute */
-		payload += nla_total_size((nhs * nhsize) + nh_encapsize);
-
+		if (nhs != 1)
+			payload += nla_total_size(mpsize);
 	}
 
 	return payload;
@@ -1926,42 +1957,30 @@ static int call_fib_nh_notifiers(struct fib_nh *nh,
 	return NOTIFY_DONE;
 }
 
-/* Update the PMTU of exceptions when:
- * - the new MTU of the first hop becomes smaller than the PMTU
- * - the old MTU was the same as the PMTU, and it limited discovery of
- *   larger MTUs on the path. With that limit raised, we can now
- *   discover larger MTUs
- * A special case is locked exceptions, for which the PMTU is smaller
- * than the minimal accepted PMTU:
- * - if the new MTU is greater than the PMTU, don't make any change
- * - otherwise, unlock and set PMTU
+/* Walk the exceptions of a nexthop after its first hop MTU changed. The
+ * chain is RCU protected here, while fnhe_update_pmtu() takes fnhe_lock
+ * for the update of each entry.
  */
 void fib_nhc_update_mtu(struct fib_nh_common *nhc, u32 new, u32 orig)
 {
 	struct fnhe_hash_bucket *bucket;
 	int i;
 
-	bucket = rcu_dereference_protected(nhc->nhc_exceptions, 1);
+	rcu_read_lock();
+	bucket = rcu_dereference(nhc->nhc_exceptions);
 	if (!bucket)
-		return;
+		goto out;
 
 	for (i = 0; i < FNHE_HASH_SIZE; i++) {
 		struct fib_nh_exception *fnhe;
 
-		for (fnhe = rcu_dereference_protected(bucket[i].chain, 1);
+		for (fnhe = rcu_dereference(bucket[i].chain);
 		     fnhe;
-		     fnhe = rcu_dereference_protected(fnhe->fnhe_next, 1)) {
-			if (fnhe->fnhe_mtu_locked) {
-				if (new <= fnhe->fnhe_pmtu) {
-					fnhe->fnhe_pmtu = new;
-					fnhe->fnhe_mtu_locked = false;
-				}
-			} else if (new < fnhe->fnhe_pmtu ||
-				   orig == fnhe->fnhe_pmtu) {
-				fnhe->fnhe_pmtu = new;
-			}
-		}
+		     fnhe = rcu_dereference(fnhe->fnhe_next))
+			fnhe_update_pmtu(fnhe, new, orig);
 	}
+out:
+	rcu_read_unlock();
 }
 
 void fib_sync_mtu(struct net_device *dev, u32 orig_mtu)
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index c7a1f763e464e4..208f8b173a0561 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -930,11 +930,23 @@ static struct request_sock *inet_reqsk_clone(struct request_sock *req,
 
 	nreq->rsk_listener = sk;
 
-	/* We need not acquire fastopenq->lock
-	 * because the child socket is locked in inet_csk_listen_stop().
-	 */
-	if (sk->sk_protocol == IPPROTO_TCP && tcp_rsk(nreq)->tfo_listener)
+	if (sk->sk_protocol == IPPROTO_TCP && tcp_rsk(nreq)->tfo_listener) {
+		struct fastopen_queue *fastopenq;
+
+		/* reqsk_fastopen_remove() will uncharge nreq->rsk_listener,
+		 * that is @sk, so charge it here.  Unlike the listener
+		 * being closed, @sk is live and needs its lock.
+		 */
+		fastopenq = &inet_csk(sk)->icsk_accept_queue.fastopenq;
+		spin_lock_bh(&fastopenq->lock);
+		fastopenq->qlen++;
+		spin_unlock_bh(&fastopenq->lock);
+
+		/* We need not acquire fastopenq->lock
+		 * because the child socket is locked in inet_csk_listen_stop().
+		 */
 		rcu_assign_pointer(tcp_sk(nreq->sk)->fastopen_rsk, nreq);
+	}
 
 	return nreq;
 }
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 87eaae03e618aa..789953096c80d2 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -751,6 +751,35 @@ out_unlock:
 	spin_unlock_bh(&fnhe_lock);
 }
 
+/* Update the PMTU of an exception when:
+ * - the new MTU of the first hop becomes smaller than the PMTU
+ * - the old MTU was the same as the PMTU, and it limited discovery of
+ *   larger MTUs on the path. With that limit raised, we can now
+ *   discover larger MTUs
+ * A special case is locked exceptions, for which the PMTU is smaller
+ * than the minimal accepted PMTU:
+ * - if the new MTU is greater than the PMTU, don't make any change
+ * - otherwise, unlock and set PMTU
+ *
+ * fnhe_lock keeps fnhe_pmtu and fnhe_mtu_locked consistent against
+ * update_or_create_fnhe(), which sets both under the same lock.
+ */
+void fnhe_update_pmtu(struct fib_nh_exception *fnhe, u32 new, u32 orig)
+{
+	spin_lock_bh(&fnhe_lock);
+
+	if (fnhe->fnhe_mtu_locked) {
+		if (new <= fnhe->fnhe_pmtu) {
+			fnhe->fnhe_pmtu = new;
+			fnhe->fnhe_mtu_locked = false;
+		}
+	} else if (new < fnhe->fnhe_pmtu || orig == fnhe->fnhe_pmtu) {
+		fnhe->fnhe_pmtu = new;
+	}
+
+	spin_unlock_bh(&fnhe_lock);
+}
+
 static void __ip_do_redirect(struct rtable *rt, struct sk_buff *skb, struct flowi4 *fl4,
 			     bool kill_route)
 {
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 5b1fbb0ca2ff6e..f05d1699683ff7 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -4365,141 +4365,52 @@ int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
 EXPORT_SYMBOL(tcp_getsockopt);
 
 #ifdef CONFIG_TCP_MD5SIG
-static DEFINE_PER_CPU(struct tcp_md5sig_pool, tcp_md5sig_pool);
-static DEFINE_MUTEX(tcp_md5sig_mutex);
-static bool tcp_md5sig_pool_populated = false;
+int tcp_md5_sigpool_id = -1;
+EXPORT_SYMBOL_GPL(tcp_md5_sigpool_id);
 
-static void __tcp_alloc_md5sig_pool(void)
+int tcp_md5_alloc_sigpool(void)
 {
-	struct crypto_ahash *hash;
-	int cpu;
-
-	hash = crypto_alloc_ahash("md5", 0, CRYPTO_ALG_ASYNC);
-	if (IS_ERR(hash))
-		return;
-
-	for_each_possible_cpu(cpu) {
-		void *scratch = per_cpu(tcp_md5sig_pool, cpu).scratch;
-		struct ahash_request *req;
-
-		if (!scratch) {
-			scratch = kmalloc_node(sizeof(union tcp_md5sum_block) +
-					       sizeof(struct tcphdr),
-					       GFP_KERNEL,
-					       cpu_to_node(cpu));
-			if (!scratch)
-				return;
-			per_cpu(tcp_md5sig_pool, cpu).scratch = scratch;
-		}
-		if (per_cpu(tcp_md5sig_pool, cpu).md5_req)
-			continue;
-
-		req = ahash_request_alloc(hash, GFP_KERNEL);
-		if (!req)
-			return;
-
-		ahash_request_set_callback(req, 0, NULL, NULL);
-
-		per_cpu(tcp_md5sig_pool, cpu).md5_req = req;
-	}
-	/* before setting tcp_md5sig_pool_populated, we must commit all writes
-	 * to memory. See smp_rmb() in tcp_get_md5sig_pool()
-	 */
-	smp_wmb();
-	/* Paired with READ_ONCE() from tcp_alloc_md5sig_pool()
-	 * and tcp_get_md5sig_pool().
-	*/
-	WRITE_ONCE(tcp_md5sig_pool_populated, true);
-}
-
-bool tcp_alloc_md5sig_pool(void)
-{
-	/* Paired with WRITE_ONCE() from __tcp_alloc_md5sig_pool() */
-	if (unlikely(!READ_ONCE(tcp_md5sig_pool_populated))) {
-		mutex_lock(&tcp_md5sig_mutex);
-
-		if (!tcp_md5sig_pool_populated)
-			__tcp_alloc_md5sig_pool();
+	size_t scratch_size;
+	int ret;
 
-		mutex_unlock(&tcp_md5sig_mutex);
+	scratch_size = sizeof(union tcp_md5sum_block) + sizeof(struct tcphdr);
+	ret = tcp_sigpool_alloc_ahash("md5", scratch_size);
+	if (ret >= 0) {
+		/* As long as any md5 sigpool was allocated, the return
+		 * id would stay the same. Re-write the id only for the case
+		 * when previously all MD5 keys were deleted and this call
+		 * allocates the first MD5 key, which may return a different
+		 * sigpool id than was used previously.
+		 */
+		WRITE_ONCE(tcp_md5_sigpool_id, ret); /* Avoids the compiler potentially being smart here */
+		return 0;
 	}
-	/* Paired with WRITE_ONCE() from __tcp_alloc_md5sig_pool() */
-	return READ_ONCE(tcp_md5sig_pool_populated);
+	return ret;
 }
-EXPORT_SYMBOL(tcp_alloc_md5sig_pool);
-
 
-/**
- *	tcp_get_md5sig_pool - get md5sig_pool for this user
- *
- *	We use percpu structure, so if we succeed, we exit with preemption
- *	and BH disabled, to make sure another thread or softirq handling
- *	wont try to get same context.
- */
-struct tcp_md5sig_pool *tcp_get_md5sig_pool(void)
+void tcp_md5_release_sigpool(void)
 {
-	local_bh_disable();
-
-	/* Paired with WRITE_ONCE() from __tcp_alloc_md5sig_pool() */
-	if (READ_ONCE(tcp_md5sig_pool_populated)) {
-		/* coupled with smp_wmb() in __tcp_alloc_md5sig_pool() */
-		smp_rmb();
-		return this_cpu_ptr(&tcp_md5sig_pool);
-	}
-	local_bh_enable();
-	return NULL;
+	tcp_sigpool_release(READ_ONCE(tcp_md5_sigpool_id));
 }
-EXPORT_SYMBOL(tcp_get_md5sig_pool);
 
-int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
-			  const struct sk_buff *skb, unsigned int header_len)
+void tcp_md5_add_sigpool(void)
 {
-	struct scatterlist sg;
-	const struct tcphdr *tp = tcp_hdr(skb);
-	struct ahash_request *req = hp->md5_req;
-	unsigned int i;
-	const unsigned int head_data_len = skb_headlen(skb) > header_len ?
-					   skb_headlen(skb) - header_len : 0;
-	const struct skb_shared_info *shi = skb_shinfo(skb);
-	struct sk_buff *frag_iter;
-
-	sg_init_table(&sg, 1);
-
-	sg_set_buf(&sg, ((u8 *) tp) + header_len, head_data_len);
-	ahash_request_set_crypt(req, &sg, NULL, head_data_len);
-	if (crypto_ahash_update(req))
-		return 1;
-
-	for (i = 0; i < shi->nr_frags; ++i) {
-		const skb_frag_t *f = &shi->frags[i];
-		unsigned int offset = skb_frag_off(f);
-		struct page *page = skb_frag_page(f) + (offset >> PAGE_SHIFT);
-
-		sg_set_page(&sg, page, skb_frag_size(f),
-			    offset_in_page(offset));
-		ahash_request_set_crypt(req, &sg, NULL, skb_frag_size(f));
-		if (crypto_ahash_update(req))
-			return 1;
-	}
-
-	skb_walk_frags(skb, frag_iter)
-		if (tcp_md5_hash_skb_data(hp, frag_iter, 0))
-			return 1;
-
-	return 0;
+	tcp_sigpool_get(READ_ONCE(tcp_md5_sigpool_id));
 }
-EXPORT_SYMBOL(tcp_md5_hash_skb_data);
 
-int tcp_md5_hash_key(struct tcp_md5sig_pool *hp, const struct tcp_md5sig_key *key)
+int tcp_md5_hash_key(struct tcp_sigpool *hp,
+		     const struct tcp_md5sig_key *key)
 {
 	u8 keylen = READ_ONCE(key->keylen); /* paired with WRITE_ONCE() in tcp_md5_do_add */
 	struct scatterlist sg;
 
 	sg_init_one(&sg, key->key, keylen);
-	ahash_request_set_crypt(hp->md5_req, &sg, NULL, keylen);
+	ahash_request_set_crypt(hp->req, &sg, NULL, keylen);
 
-	/* We use data_race() because tcp_md5_do_add() might change key->key under us */
-	return data_race(crypto_ahash_update(hp->md5_req));
+	/* We use data_race() because tcp_md5_do_add() might change
+	 * key->key under us
+	 */
+	return data_race(crypto_ahash_update(hp->req));
 }
 EXPORT_SYMBOL(tcp_md5_hash_key);
 
diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
index 337f6edd4757e3..a4a4434171a04c 100644
--- a/net/ipv4/tcp_bpf.c
+++ b/net/ipv4/tcp_bpf.c
@@ -455,6 +455,7 @@ more_data:
 	case __SK_REDIRECT:
 		redir_ingress = psock->redir_ingress;
 		sk_redir = psock->sk_redir;
+		sock_hold(sk_redir);
 		sk_msg_apply_bytes(psock, tosend);
 		if (!psock->apply_bytes) {
 			/* Clean up before releasing the sock lock. */
@@ -475,6 +476,7 @@ more_data:
 
 		if (eval == __SK_REDIRECT)
 			sock_put(sk_redir);
+		sock_put(sk_redir);
 
 		lock_sock(sk);
 		sk_mem_uncharge(sk, sent);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index eb1bf586347413..9efb84658a82dc 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -252,7 +252,7 @@ static void tcp_measure_rcv_mss(struct sock *sk, const struct sk_buff *skb)
 				struct tcp_sock *tp = tcp_sk(sk);
 
 				val = tcp_win_from_space(sk, sk->sk_rcvbuf);
-				tcp_set_window_clamp(sk, val);
+				WRITE_ONCE(tp->window_clamp, val);
 
 				if (tp->window_clamp < tp->rcvq_space.space)
 					tp->rcvq_space.space = tp->window_clamp;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index c8d35f1c0ece23..3f9e1cfde00833 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -58,6 +58,7 @@
 #include <linux/times.h>
 #include <linux/slab.h>
 #include <linux/sched.h>
+#include <linux/sock_diag.h>
 
 #include <net/net_namespace.h>
 #include <net/icmp.h>
@@ -1226,10 +1227,6 @@ static int __tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr,
 	key = sock_kmalloc(sk, sizeof(*key), gfp | __GFP_ZERO);
 	if (!key)
 		return -ENOMEM;
-	if (!tcp_alloc_md5sig_pool()) {
-		sock_kfree_s(sk, key, sizeof(*key));
-		return -ENOMEM;
-	}
 
 	memcpy(key->key, newkey, newkeylen);
 	key->keylen = newkeylen;
@@ -1251,15 +1248,21 @@ int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr,
 	struct tcp_sock *tp = tcp_sk(sk);
 
 	if (!rcu_dereference_protected(tp->md5sig_info, lockdep_sock_is_held(sk))) {
-		if (tcp_md5sig_info_add(sk, GFP_KERNEL))
+		if (tcp_md5_alloc_sigpool())
 			return -ENOMEM;
 
+		if (tcp_md5sig_info_add(sk, GFP_KERNEL)) {
+			tcp_md5_release_sigpool();
+			return -ENOMEM;
+		}
+
 		if (!static_branch_inc(&tcp_md5_needed.key)) {
 			struct tcp_md5sig_info *md5sig;
 
 			md5sig = rcu_dereference_protected(tp->md5sig_info, lockdep_sock_is_held(sk));
 			rcu_assign_pointer(tp->md5sig_info, NULL);
 			kfree_rcu(md5sig, rcu);
+			tcp_md5_release_sigpool();
 			return -EUSERS;
 		}
 	}
@@ -1276,8 +1279,12 @@ int tcp_md5_key_copy(struct sock *sk, const union tcp_md5_addr *addr,
 	struct tcp_sock *tp = tcp_sk(sk);
 
 	if (!rcu_dereference_protected(tp->md5sig_info, lockdep_sock_is_held(sk))) {
-		if (tcp_md5sig_info_add(sk, sk_gfp_mask(sk, GFP_ATOMIC)))
+		tcp_md5_add_sigpool();
+
+		if (tcp_md5sig_info_add(sk, sk_gfp_mask(sk, GFP_ATOMIC))) {
+			tcp_md5_release_sigpool();
 			return -ENOMEM;
+		}
 
 		if (!static_key_fast_inc_not_disabled(&tcp_md5_needed.key.key)) {
 			struct tcp_md5sig_info *md5sig;
@@ -1286,6 +1293,7 @@ int tcp_md5_key_copy(struct sock *sk, const union tcp_md5_addr *addr,
 			net_warn_ratelimited("Too many TCP-MD5 keys in the system\n");
 			rcu_assign_pointer(tp->md5sig_info, NULL);
 			kfree_rcu(md5sig, rcu);
+			tcp_md5_release_sigpool();
 			return -EUSERS;
 		}
 	}
@@ -1385,7 +1393,7 @@ static int tcp_v4_parse_md5_keys(struct sock *sk, int optname,
 			      cmd.tcpm_key, cmd.tcpm_keylen);
 }
 
-static int tcp_v4_md5_hash_headers(struct tcp_md5sig_pool *hp,
+static int tcp_v4_md5_hash_headers(struct tcp_sigpool *hp,
 				   __be32 daddr, __be32 saddr,
 				   const struct tcphdr *th, int nbytes)
 {
@@ -1405,38 +1413,35 @@ static int tcp_v4_md5_hash_headers(struct tcp_md5sig_pool *hp,
 	_th->check = 0;
 
 	sg_init_one(&sg, bp, sizeof(*bp) + sizeof(*th));
-	ahash_request_set_crypt(hp->md5_req, &sg, NULL,
+	ahash_request_set_crypt(hp->req, &sg, NULL,
 				sizeof(*bp) + sizeof(*th));
-	return crypto_ahash_update(hp->md5_req);
+	return crypto_ahash_update(hp->req);
 }
 
 static int tcp_v4_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
 			       __be32 daddr, __be32 saddr, const struct tcphdr *th)
 {
-	struct tcp_md5sig_pool *hp;
-	struct ahash_request *req;
+	struct tcp_sigpool hp;
 
-	hp = tcp_get_md5sig_pool();
-	if (!hp)
-		goto clear_hash_noput;
-	req = hp->md5_req;
+	if (tcp_sigpool_start(tcp_md5_sigpool_id, &hp))
+		goto clear_hash_nostart;
 
-	if (crypto_ahash_init(req))
+	if (crypto_ahash_init(hp.req))
 		goto clear_hash;
-	if (tcp_v4_md5_hash_headers(hp, daddr, saddr, th, th->doff << 2))
+	if (tcp_v4_md5_hash_headers(&hp, daddr, saddr, th, th->doff << 2))
 		goto clear_hash;
-	if (tcp_md5_hash_key(hp, key))
+	if (tcp_md5_hash_key(&hp, key))
 		goto clear_hash;
-	ahash_request_set_crypt(req, NULL, md5_hash, 0);
-	if (crypto_ahash_final(req))
+	ahash_request_set_crypt(hp.req, NULL, md5_hash, 0);
+	if (crypto_ahash_final(hp.req))
 		goto clear_hash;
 
-	tcp_put_md5sig_pool();
+	tcp_sigpool_end(&hp);
 	return 0;
 
 clear_hash:
-	tcp_put_md5sig_pool();
-clear_hash_noput:
+	tcp_sigpool_end(&hp);
+clear_hash_nostart:
 	memset(md5_hash, 0, 16);
 	return 1;
 }
@@ -1445,9 +1450,8 @@ int tcp_v4_md5_hash_skb(char *md5_hash, const struct tcp_md5sig_key *key,
 			const struct sock *sk,
 			const struct sk_buff *skb)
 {
-	struct tcp_md5sig_pool *hp;
-	struct ahash_request *req;
 	const struct tcphdr *th = tcp_hdr(skb);
+	struct tcp_sigpool hp;
 	__be32 saddr, daddr;
 
 	if (sk) { /* valid for establish/request sockets */
@@ -1459,30 +1463,28 @@ int tcp_v4_md5_hash_skb(char *md5_hash, const struct tcp_md5sig_key *key,
 		daddr = iph->daddr;
 	}
 
-	hp = tcp_get_md5sig_pool();
-	if (!hp)
-		goto clear_hash_noput;
-	req = hp->md5_req;
+	if (tcp_sigpool_start(tcp_md5_sigpool_id, &hp))
+		goto clear_hash_nostart;
 
-	if (crypto_ahash_init(req))
+	if (crypto_ahash_init(hp.req))
 		goto clear_hash;
 
-	if (tcp_v4_md5_hash_headers(hp, daddr, saddr, th, skb->len))
+	if (tcp_v4_md5_hash_headers(&hp, daddr, saddr, th, skb->len))
 		goto clear_hash;
-	if (tcp_md5_hash_skb_data(hp, skb, th->doff << 2))
+	if (tcp_sigpool_hash_skb_data(&hp, skb, th->doff << 2))
 		goto clear_hash;
-	if (tcp_md5_hash_key(hp, key))
+	if (tcp_md5_hash_key(&hp, key))
 		goto clear_hash;
-	ahash_request_set_crypt(req, NULL, md5_hash, 0);
-	if (crypto_ahash_final(req))
+	ahash_request_set_crypt(hp.req, NULL, md5_hash, 0);
+	if (crypto_ahash_final(hp.req))
 		goto clear_hash;
 
-	tcp_put_md5sig_pool();
+	tcp_sigpool_end(&hp);
 	return 0;
 
 clear_hash:
-	tcp_put_md5sig_pool();
-clear_hash_noput:
+	tcp_sigpool_end(&hp);
+clear_hash_nostart:
 	memset(md5_hash, 0, 16);
 	return 1;
 }
@@ -2310,6 +2312,18 @@ static int tcp_v4_init_sock(struct sock *sk)
 	return 0;
 }
 
+#ifdef CONFIG_TCP_MD5SIG
+static void tcp_md5sig_info_free_rcu(struct rcu_head *head)
+{
+	struct tcp_md5sig_info *md5sig;
+
+	md5sig = container_of(head, struct tcp_md5sig_info, rcu);
+	kfree(md5sig);
+	static_branch_slow_dec_deferred(&tcp_md5_needed);
+	tcp_md5_release_sigpool();
+}
+#endif
+
 void tcp_v4_destroy_sock(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
@@ -2334,10 +2348,12 @@ void tcp_v4_destroy_sock(struct sock *sk)
 #ifdef CONFIG_TCP_MD5SIG
 	/* Clean up the MD5 key list, if any */
 	if (tp->md5sig_info) {
+		struct tcp_md5sig_info *md5sig;
+
+		md5sig = rcu_dereference_protected(tp->md5sig_info, 1);
 		tcp_clear_md5_list(sk);
-		kfree_rcu(rcu_dereference_protected(tp->md5sig_info, 1), rcu);
-		tp->md5sig_info = NULL;
-		static_branch_slow_dec_deferred(&tcp_md5_needed);
+		call_rcu(&md5sig->rcu, tcp_md5sig_info_free_rcu);
+		rcu_assign_pointer(tp->md5sig_info, NULL);
 	}
 #endif
 
@@ -2776,13 +2792,17 @@ out:
 }
 
 #ifdef CONFIG_BPF_SYSCALL
+union bpf_tcp_iter_batch_item {
+	struct sock *sk;
+	__u64 cookie;
+};
+
 struct bpf_tcp_iter_state {
 	struct tcp_iter_state state;
 	unsigned int cur_sk;
 	unsigned int end_sk;
 	unsigned int max_sk;
-	struct sock **batch;
-	bool st_bucket_done;
+	union bpf_tcp_iter_batch_item *batch;
 };
 
 struct bpf_iter__tcp {
@@ -2805,21 +2825,32 @@ static int tcp_prog_seq_show(struct bpf_prog *prog, struct bpf_iter_meta *meta,
 
 static void bpf_iter_tcp_put_batch(struct bpf_tcp_iter_state *iter)
 {
-	while (iter->cur_sk < iter->end_sk)
-		sock_gen_put(iter->batch[iter->cur_sk++]);
+	union bpf_tcp_iter_batch_item *item;
+	unsigned int cur_sk = iter->cur_sk;
+	__u64 cookie;
+
+	/* Remember the cookies of the sockets we haven't seen yet, so we can
+	 * pick up where we left off next time around.
+	 */
+	while (cur_sk < iter->end_sk) {
+		item = &iter->batch[cur_sk++];
+		cookie = sock_gen_cookie(item->sk);
+		sock_gen_put(item->sk);
+		item->cookie = cookie;
+	}
 }
 
 static int bpf_iter_tcp_realloc_batch(struct bpf_tcp_iter_state *iter,
-				      unsigned int new_batch_sz)
+				      unsigned int new_batch_sz, gfp_t flags)
 {
-	struct sock **new_batch;
+	union bpf_tcp_iter_batch_item *new_batch;
 
 	new_batch = kvmalloc(sizeof(*new_batch) * new_batch_sz,
-			     GFP_USER | __GFP_NOWARN);
+			     flags | __GFP_NOWARN);
 	if (!new_batch)
 		return -ENOMEM;
 
-	bpf_iter_tcp_put_batch(iter);
+	memcpy(new_batch, iter->batch, sizeof(*iter->batch) * iter->end_sk);
 	kvfree(iter->batch);
 	iter->batch = new_batch;
 	iter->max_sk = new_batch_sz;
@@ -2827,112 +2858,242 @@ static int bpf_iter_tcp_realloc_batch(struct bpf_tcp_iter_state *iter,
 	return 0;
 }
 
-static unsigned int bpf_iter_tcp_listening_batch(struct seq_file *seq,
-						 struct sock *start_sk)
+static struct sock *bpf_iter_tcp_resume_bucket(struct sock *first_sk,
+					       union bpf_tcp_iter_batch_item *cookies,
+					       int n_cookies)
+{
+	struct hlist_nulls_node *node;
+	struct sock *sk;
+	int i;
+
+	for (i = 0; i < n_cookies; i++) {
+		sk = first_sk;
+		sk_nulls_for_each_from(sk, node)
+			if (cookies[i].cookie == atomic64_read(&sk->sk_cookie))
+				return sk;
+	}
+
+	return NULL;
+}
+
+static struct sock *bpf_iter_tcp_resume_listening(struct seq_file *seq)
 {
 	struct inet_hashinfo *hinfo = seq_file_net(seq)->ipv4.tcp_death_row.hashinfo;
 	struct bpf_tcp_iter_state *iter = seq->private;
 	struct tcp_iter_state *st = &iter->state;
-	struct hlist_nulls_node *node;
-	unsigned int expected = 1;
+	unsigned int find_cookie = iter->cur_sk;
+	unsigned int end_cookie = iter->end_sk;
+	int resume_bucket = st->bucket;
 	struct sock *sk;
 
-	sock_hold(start_sk);
-	iter->batch[iter->end_sk++] = start_sk;
+	if (end_cookie && find_cookie == end_cookie)
+		++st->bucket;
 
-	sk = sk_nulls_next(start_sk);
-	sk_nulls_for_each_from(sk, node) {
-		if (seq_sk_match(seq, sk)) {
-			if (iter->end_sk < iter->max_sk) {
-				sock_hold(sk);
-				iter->batch[iter->end_sk++] = sk;
-			}
-			expected++;
+	sk = listening_get_first(seq);
+	iter->cur_sk = 0;
+	iter->end_sk = 0;
+
+	if (sk && st->bucket == resume_bucket && end_cookie) {
+		sk = bpf_iter_tcp_resume_bucket(sk, &iter->batch[find_cookie],
+						end_cookie - find_cookie);
+		if (!sk) {
+			spin_unlock(&hinfo->lhash2[st->bucket].lock);
+			++st->bucket;
+			sk = listening_get_first(seq);
 		}
 	}
-	spin_unlock(&hinfo->lhash2[st->bucket].lock);
 
-	return expected;
+	return sk;
 }
 
-static unsigned int bpf_iter_tcp_established_batch(struct seq_file *seq,
-						   struct sock *start_sk)
+static struct sock *bpf_iter_tcp_resume_established(struct seq_file *seq)
 {
 	struct inet_hashinfo *hinfo = seq_file_net(seq)->ipv4.tcp_death_row.hashinfo;
 	struct bpf_tcp_iter_state *iter = seq->private;
 	struct tcp_iter_state *st = &iter->state;
+	unsigned int find_cookie = iter->cur_sk;
+	unsigned int end_cookie = iter->end_sk;
+	int resume_bucket = st->bucket;
+	struct sock *sk;
+
+	if (end_cookie && find_cookie == end_cookie)
+		++st->bucket;
+
+	sk = established_get_first(seq);
+	iter->cur_sk = 0;
+	iter->end_sk = 0;
+
+	if (sk && st->bucket == resume_bucket && end_cookie) {
+		sk = bpf_iter_tcp_resume_bucket(sk, &iter->batch[find_cookie],
+						end_cookie - find_cookie);
+		if (!sk) {
+			spin_unlock_bh(inet_ehash_lockp(hinfo, st->bucket));
+			++st->bucket;
+			sk = established_get_first(seq);
+		}
+	}
+
+	return sk;
+}
+
+static struct sock *bpf_iter_tcp_resume(struct seq_file *seq)
+{
+	struct bpf_tcp_iter_state *iter = seq->private;
+	struct tcp_iter_state *st = &iter->state;
+	struct sock *sk = NULL;
+
+	switch (st->state) {
+	case TCP_SEQ_STATE_LISTENING:
+		sk = bpf_iter_tcp_resume_listening(seq);
+		if (sk)
+			break;
+		st->bucket = 0;
+		st->state = TCP_SEQ_STATE_ESTABLISHED;
+		fallthrough;
+	case TCP_SEQ_STATE_ESTABLISHED:
+		sk = bpf_iter_tcp_resume_established(seq);
+		break;
+	}
+
+	return sk;
+}
+
+static unsigned int bpf_iter_tcp_listening_batch(struct seq_file *seq,
+						 struct sock **start_sk)
+{
+	struct bpf_tcp_iter_state *iter = seq->private;
 	struct hlist_nulls_node *node;
 	unsigned int expected = 1;
 	struct sock *sk;
 
-	sock_hold(start_sk);
-	iter->batch[iter->end_sk++] = start_sk;
+	sock_hold(*start_sk);
+	iter->batch[iter->end_sk++].sk = *start_sk;
 
-	sk = sk_nulls_next(start_sk);
+	sk = sk_nulls_next(*start_sk);
+	*start_sk = NULL;
 	sk_nulls_for_each_from(sk, node) {
 		if (seq_sk_match(seq, sk)) {
 			if (iter->end_sk < iter->max_sk) {
 				sock_hold(sk);
-				iter->batch[iter->end_sk++] = sk;
+				iter->batch[iter->end_sk++].sk = sk;
+			} else if (!*start_sk) {
+				/* Remember where we left off. */
+				*start_sk = sk;
 			}
 			expected++;
 		}
 	}
-	spin_unlock_bh(inet_ehash_lockp(hinfo, st->bucket));
 
 	return expected;
 }
 
-static struct sock *bpf_iter_tcp_batch(struct seq_file *seq)
+static unsigned int bpf_iter_tcp_established_batch(struct seq_file *seq,
+						   struct sock **start_sk)
+{
+	struct bpf_tcp_iter_state *iter = seq->private;
+	struct hlist_nulls_node *node;
+	struct sock *sk = *start_sk;
+	unsigned int expected = 0;
+
+	*start_sk = NULL;
+	sk_nulls_for_each_from(sk, node) {
+		if (!seq_sk_match(seq, sk))
+			continue;
+		expected++;
+		if (iter->end_sk < iter->max_sk) {
+			/* reqsk_queue_hash_req() inserts with sk_refcnt == 0
+			 * and refcount_set()s it after the bucket lock drops.
+			 */
+			if (unlikely(!refcount_inc_not_zero(&sk->sk_refcnt)))
+				continue;
+			iter->batch[iter->end_sk++].sk = sk;
+		} else if (!*start_sk) {
+			/* Remember where we left off. */
+			*start_sk = sk;
+		}
+	}
+
+	return expected;
+}
+
+static unsigned int bpf_iter_fill_batch(struct seq_file *seq,
+					struct sock **start_sk)
+{
+	struct bpf_tcp_iter_state *iter = seq->private;
+	struct tcp_iter_state *st = &iter->state;
+
+	if (st->state == TCP_SEQ_STATE_LISTENING)
+		return bpf_iter_tcp_listening_batch(seq, start_sk);
+	else
+		return bpf_iter_tcp_established_batch(seq, start_sk);
+}
+
+static void bpf_iter_tcp_unlock_bucket(struct seq_file *seq)
 {
 	struct inet_hashinfo *hinfo = seq_file_net(seq)->ipv4.tcp_death_row.hashinfo;
 	struct bpf_tcp_iter_state *iter = seq->private;
 	struct tcp_iter_state *st = &iter->state;
+
+	if (st->state == TCP_SEQ_STATE_LISTENING)
+		spin_unlock(&hinfo->lhash2[st->bucket].lock);
+	else
+		spin_unlock_bh(inet_ehash_lockp(hinfo, st->bucket));
+}
+
+static struct sock *bpf_iter_tcp_batch(struct seq_file *seq)
+{
+	struct bpf_tcp_iter_state *iter = seq->private;
 	unsigned int expected;
-	bool resized = false;
 	struct sock *sk;
-
-	/* The st->bucket is done.  Directly advance to the next
-	 * bucket instead of having the tcp_seek_last_pos() to skip
-	 * one by one in the current bucket and eventually find out
-	 * it has to advance to the next bucket.
-	 */
-	if (iter->st_bucket_done) {
-		st->offset = 0;
-		st->bucket++;
-		if (st->state == TCP_SEQ_STATE_LISTENING &&
-		    st->bucket > hinfo->lhash2_mask) {
-			st->state = TCP_SEQ_STATE_ESTABLISHED;
-			st->bucket = 0;
-		}
-	}
+	int err;
 
 again:
-	/* Get a new batch */
-	iter->cur_sk = 0;
-	iter->end_sk = 0;
-	iter->st_bucket_done = false;
+	sk = bpf_iter_tcp_resume(seq);
+	if (!sk)
+		return NULL; /* Done */
+
+	expected = bpf_iter_fill_batch(seq, &sk);
+	if (likely(!sk))
+		goto done;
 
-	sk = tcp_seek_last_pos(seq);
+	/* Batch size was too small. */
+	bpf_iter_tcp_unlock_bucket(seq);
+	bpf_iter_tcp_put_batch(iter);
+	err = bpf_iter_tcp_realloc_batch(iter, expected * 3 / 2,
+					 GFP_USER);
+	if (err) {
+		iter->cur_sk = 0;
+		iter->end_sk = 0;
+		return ERR_PTR(err);
+	}
+
+	sk = bpf_iter_tcp_resume(seq);
 	if (!sk)
 		return NULL; /* Done */
 
-	if (st->state == TCP_SEQ_STATE_LISTENING)
-		expected = bpf_iter_tcp_listening_batch(seq, sk);
-	else
-		expected = bpf_iter_tcp_established_batch(seq, sk);
+	expected = bpf_iter_fill_batch(seq, &sk);
+	if (likely(!sk))
+		goto done;
 
-	if (iter->end_sk == expected) {
-		iter->st_bucket_done = true;
-		return sk;
+	/* Batch size was still too small. Hold onto the lock while we try
+	 * again with a larger batch to make sure the current bucket's size
+	 * does not change in the meantime.
+	 */
+	err = bpf_iter_tcp_realloc_batch(iter, expected, GFP_NOWAIT);
+	if (err) {
+		bpf_iter_tcp_unlock_bucket(seq);
+		return ERR_PTR(err);
 	}
 
-	if (!resized && !bpf_iter_tcp_realloc_batch(iter, expected * 3 / 2)) {
-		resized = true;
+	bpf_iter_fill_batch(seq, &sk);
+	WARN_ON_ONCE(sk);
+done:
+	bpf_iter_tcp_unlock_bucket(seq);
+	if (unlikely(!iter->end_sk)) {
+		++iter->state.bucket;
 		goto again;
 	}
-
-	return sk;
+	return iter->batch[0].sk;
 }
 
 static void *bpf_iter_tcp_seq_start(struct seq_file *seq, loff_t *pos)
@@ -2962,16 +3123,11 @@ static void *bpf_iter_tcp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 		 * meta.seq_num is used instead.
 		 */
 		st->num++;
-		/* Move st->offset to the next sk in the bucket such that
-		 * the future start() will resume at st->offset in
-		 * st->bucket.  See tcp_seek_last_pos().
-		 */
-		st->offset++;
-		sock_gen_put(iter->batch[iter->cur_sk++]);
+		sock_gen_put(iter->batch[iter->cur_sk++].sk);
 	}
 
 	if (iter->cur_sk < iter->end_sk)
-		sk = iter->batch[iter->cur_sk];
+		sk = iter->batch[iter->cur_sk].sk;
 	else
 		sk = bpf_iter_tcp_batch(seq);
 
@@ -3037,10 +3193,8 @@ static void bpf_iter_tcp_seq_stop(struct seq_file *seq, void *v)
 			(void)tcp_prog_seq_show(prog, &meta, v, 0);
 	}
 
-	if (iter->cur_sk < iter->end_sk) {
+	if (iter->cur_sk < iter->end_sk)
 		bpf_iter_tcp_put_batch(iter);
-		iter->st_bucket_done = false;
-	}
 }
 
 static const struct seq_operations bpf_iter_tcp_seq_ops = {
@@ -3355,7 +3509,7 @@ static int bpf_iter_init_tcp(void *priv_data, struct bpf_iter_aux_info *aux)
 	if (err)
 		return err;
 
-	err = bpf_iter_tcp_realloc_batch(iter, INIT_BATCH_SZ);
+	err = bpf_iter_tcp_realloc_batch(iter, INIT_BATCH_SZ, GFP_USER);
 	if (err) {
 		bpf_iter_fini_seq_net(priv_data);
 		return err;
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 2eea9672ca01ef..c3f5e4fc7b210e 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -261,10 +261,9 @@ static void tcp_time_wait_init(struct sock *sk, struct tcp_timewait_sock *tcptw)
 		tcptw->tw_md5_key = kmemdup(key, sizeof(*key), GFP_ATOMIC);
 		if (!tcptw->tw_md5_key)
 			return;
-		if (!tcp_alloc_md5sig_pool())
-			goto out_free;
 		if (!static_key_fast_inc_not_disabled(&tcp_md5_needed.key.key))
 			goto out_free;
+		tcp_md5_add_sigpool();
 	}
 	return;
 out_free:
@@ -348,16 +347,26 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
 }
 EXPORT_SYMBOL(tcp_time_wait);
 
+#ifdef CONFIG_TCP_MD5SIG
+static void tcp_md5_twsk_free_rcu(struct rcu_head *head)
+{
+	struct tcp_md5sig_key *key;
+
+	key = container_of(head, struct tcp_md5sig_key, rcu);
+	kfree(key);
+	static_branch_slow_dec_deferred(&tcp_md5_needed);
+	tcp_md5_release_sigpool();
+}
+#endif
+
 void tcp_twsk_destructor(struct sock *sk)
 {
 #ifdef CONFIG_TCP_MD5SIG
 	if (static_branch_unlikely(&tcp_md5_needed.key)) {
 		struct tcp_timewait_sock *twsk = tcp_twsk(sk);
 
-		if (twsk->tw_md5_key) {
-			kfree_rcu(twsk->tw_md5_key, rcu);
-			static_branch_slow_dec_deferred(&tcp_md5_needed);
-		}
+		if (twsk->tw_md5_key)
+			call_rcu(&twsk->tw_md5_key->rcu, tcp_md5_twsk_free_rcu);
 	}
 #endif
 }
diff --git a/net/ipv4/tcp_sigpool.c b/net/ipv4/tcp_sigpool.c
new file mode 100644
index 00000000000000..8512cb09ebc097
--- /dev/null
+++ b/net/ipv4/tcp_sigpool.c
@@ -0,0 +1,357 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <crypto/hash.h>
+#include <linux/cpu.h>
+#include <linux/kref.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/percpu.h>
+#include <linux/workqueue.h>
+#include <net/tcp.h>
+
+static size_t __scratch_size;
+static DEFINE_PER_CPU(void __rcu *, sigpool_scratch);
+
+struct sigpool_entry {
+	struct crypto_ahash	*hash;
+	const char		*alg;
+	struct kref		kref;
+	uint16_t		needs_key:1,
+				reserved:15;
+};
+
+#define CPOOL_SIZE (PAGE_SIZE / sizeof(struct sigpool_entry))
+static struct sigpool_entry cpool[CPOOL_SIZE];
+static unsigned int cpool_populated;
+static DEFINE_MUTEX(cpool_mutex);
+
+/* Slow-path */
+struct scratches_to_free {
+	struct rcu_head rcu;
+	unsigned int cnt;
+	void *scratches[];
+};
+
+static void free_old_scratches(struct rcu_head *head)
+{
+	struct scratches_to_free *stf;
+
+	stf = container_of(head, struct scratches_to_free, rcu);
+	while (stf->cnt--)
+		kfree(stf->scratches[stf->cnt]);
+	kfree(stf);
+}
+
+/**
+ * sigpool_reserve_scratch - re-allocates scratch buffer, slow-path
+ * @size: request size for the scratch/temp buffer
+ */
+static int sigpool_reserve_scratch(size_t size)
+{
+	struct scratches_to_free *stf;
+	size_t stf_sz = struct_size(stf, scratches, num_possible_cpus());
+	int cpu, err = 0;
+
+	lockdep_assert_held(&cpool_mutex);
+	if (__scratch_size >= size)
+		return 0;
+
+	stf = kmalloc(stf_sz, GFP_KERNEL);
+	if (!stf)
+		return -ENOMEM;
+	stf->cnt = 0;
+
+	size = max(size, __scratch_size);
+	cpus_read_lock();
+	for_each_possible_cpu(cpu) {
+		void *scratch, *old_scratch;
+
+		scratch = kmalloc_node(size, GFP_KERNEL, cpu_to_node(cpu));
+		if (!scratch) {
+			err = -ENOMEM;
+			break;
+		}
+
+		old_scratch = rcu_replace_pointer(per_cpu(sigpool_scratch, cpu),
+					scratch, lockdep_is_held(&cpool_mutex));
+		if (!cpu_online(cpu) || !old_scratch) {
+			kfree(old_scratch);
+			continue;
+		}
+		stf->scratches[stf->cnt++] = old_scratch;
+	}
+	cpus_read_unlock();
+	if (!err)
+		__scratch_size = size;
+
+	call_rcu(&stf->rcu, free_old_scratches);
+	return err;
+}
+
+static void sigpool_scratch_free(void)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu)
+		kfree(rcu_replace_pointer(per_cpu(sigpool_scratch, cpu),
+					  NULL, lockdep_is_held(&cpool_mutex)));
+	__scratch_size = 0;
+}
+
+static int __cpool_try_clone(struct crypto_ahash *hash)
+{
+	struct crypto_ahash *tmp;
+
+	tmp = crypto_clone_ahash(hash);
+	if (IS_ERR(tmp))
+		return PTR_ERR(tmp);
+
+	crypto_free_ahash(tmp);
+	return 0;
+}
+
+static int __cpool_alloc_ahash(struct sigpool_entry *e, const char *alg)
+{
+	struct crypto_ahash *cpu0_hash;
+	int ret;
+
+	e->alg = kstrdup(alg, GFP_KERNEL);
+	if (!e->alg)
+		return -ENOMEM;
+
+	cpu0_hash = crypto_alloc_ahash(alg, 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(cpu0_hash)) {
+		ret = PTR_ERR(cpu0_hash);
+		goto out_free_alg;
+	}
+
+	e->needs_key = crypto_ahash_get_flags(cpu0_hash) & CRYPTO_TFM_NEED_KEY;
+
+	ret = __cpool_try_clone(cpu0_hash);
+	if (ret)
+		goto out_free_cpu0_hash;
+	e->hash = cpu0_hash;
+	kref_init(&e->kref);
+	return 0;
+
+out_free_cpu0_hash:
+	crypto_free_ahash(cpu0_hash);
+out_free_alg:
+	kfree(e->alg);
+	e->alg = NULL;
+	return ret;
+}
+
+/**
+ * tcp_sigpool_alloc_ahash - allocates pool for ahash requests
+ * @alg: name of async hash algorithm
+ * @scratch_size: reserve a tcp_sigpool::scratch buffer of this size
+ */
+int tcp_sigpool_alloc_ahash(const char *alg, size_t scratch_size)
+{
+	int i, ret;
+
+	/* slow-path */
+	mutex_lock(&cpool_mutex);
+	ret = sigpool_reserve_scratch(scratch_size);
+	if (ret)
+		goto out;
+	for (i = 0; i < cpool_populated; i++) {
+		if (!cpool[i].alg)
+			continue;
+		if (strcmp(cpool[i].alg, alg))
+			continue;
+
+		/* pairs with tcp_sigpool_release() */
+		if (!kref_get_unless_zero(&cpool[i].kref))
+			kref_init(&cpool[i].kref);
+		ret = i;
+		goto out;
+	}
+
+	for (i = 0; i < cpool_populated; i++) {
+		if (!cpool[i].alg)
+			break;
+	}
+	if (i >= CPOOL_SIZE) {
+		ret = -ENOSPC;
+		goto out;
+	}
+
+	ret = __cpool_alloc_ahash(&cpool[i], alg);
+	if (!ret) {
+		ret = i;
+		if (i == cpool_populated)
+			cpool_populated++;
+	}
+out:
+	mutex_unlock(&cpool_mutex);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(tcp_sigpool_alloc_ahash);
+
+static void __cpool_free_entry(struct sigpool_entry *e)
+{
+	crypto_free_ahash(e->hash);
+	kfree(e->alg);
+	memset(e, 0, sizeof(*e));
+}
+
+static void cpool_cleanup_work_cb(struct work_struct *work)
+{
+	bool free_scratch = true;
+	unsigned int i;
+
+	mutex_lock(&cpool_mutex);
+	for (i = 0; i < cpool_populated; i++) {
+		if (kref_read(&cpool[i].kref) > 0) {
+			free_scratch = false;
+			continue;
+		}
+		if (!cpool[i].alg)
+			continue;
+		__cpool_free_entry(&cpool[i]);
+	}
+	if (free_scratch)
+		sigpool_scratch_free();
+	mutex_unlock(&cpool_mutex);
+}
+
+static DECLARE_WORK(cpool_cleanup_work, cpool_cleanup_work_cb);
+static void cpool_schedule_cleanup(struct kref *kref)
+{
+	schedule_work(&cpool_cleanup_work);
+}
+
+/**
+ * tcp_sigpool_release - decreases number of users for a pool. If it was
+ * the last user of the pool, releases any memory that was consumed.
+ * @id: tcp_sigpool that was previously allocated by tcp_sigpool_alloc_ahash()
+ */
+void tcp_sigpool_release(unsigned int id)
+{
+	if (WARN_ON_ONCE(id >= cpool_populated || !cpool[id].alg))
+		return;
+
+	/* slow-path */
+	kref_put(&cpool[id].kref, cpool_schedule_cleanup);
+}
+EXPORT_SYMBOL_GPL(tcp_sigpool_release);
+
+/**
+ * tcp_sigpool_get - increases number of users (refcounter) for a pool
+ * @id: tcp_sigpool that was previously allocated by tcp_sigpool_alloc_ahash()
+ */
+void tcp_sigpool_get(unsigned int id)
+{
+	if (WARN_ON_ONCE(id >= cpool_populated || !cpool[id].alg))
+		return;
+	kref_get(&cpool[id].kref);
+}
+EXPORT_SYMBOL_GPL(tcp_sigpool_get);
+
+int tcp_sigpool_start(unsigned int id, struct tcp_sigpool *c) __cond_acquires(RCU_BH)
+{
+	struct crypto_ahash *hash;
+
+	rcu_read_lock_bh();
+	if (WARN_ON_ONCE(id >= cpool_populated || !cpool[id].alg)) {
+		rcu_read_unlock_bh();
+		return -EINVAL;
+	}
+
+	hash = crypto_clone_ahash(cpool[id].hash);
+	if (IS_ERR(hash)) {
+		rcu_read_unlock_bh();
+		return PTR_ERR(hash);
+	}
+
+	c->req = ahash_request_alloc(hash, GFP_ATOMIC);
+	if (!c->req) {
+		crypto_free_ahash(hash);
+		rcu_read_unlock_bh();
+		return -ENOMEM;
+	}
+	ahash_request_set_callback(c->req, 0, NULL, NULL);
+
+	/* Pairs with tcp_sigpool_reserve_scratch(), scratch area is
+	 * valid (allocated) until tcp_sigpool_end().
+	 */
+	c->scratch = rcu_dereference_bh(*this_cpu_ptr(&sigpool_scratch));
+	return 0;
+}
+EXPORT_SYMBOL_GPL(tcp_sigpool_start);
+
+void tcp_sigpool_end(struct tcp_sigpool *c) __releases(RCU_BH)
+{
+	struct crypto_ahash *hash = crypto_ahash_reqtfm(c->req);
+
+	rcu_read_unlock_bh();
+	ahash_request_free(c->req);
+	crypto_free_ahash(hash);
+}
+EXPORT_SYMBOL_GPL(tcp_sigpool_end);
+
+/**
+ * tcp_sigpool_algo - return algorithm of tcp_sigpool
+ * @id: tcp_sigpool that was previously allocated by tcp_sigpool_alloc_ahash()
+ * @buf: buffer to return name of algorithm
+ * @buf_len: size of @buf
+ */
+size_t tcp_sigpool_algo(unsigned int id, char *buf, size_t buf_len)
+{
+	if (WARN_ON_ONCE(id >= cpool_populated || !cpool[id].alg))
+		return -EINVAL;
+
+	return strscpy(buf, cpool[id].alg, buf_len);
+}
+EXPORT_SYMBOL_GPL(tcp_sigpool_algo);
+
+/**
+ * tcp_sigpool_hash_skb_data - hash data in skb with initialized tcp_sigpool
+ * @hp: tcp_sigpool pointer
+ * @skb: buffer to add sign for
+ * @header_len: TCP header length for this segment
+ */
+int tcp_sigpool_hash_skb_data(struct tcp_sigpool *hp,
+			      const struct sk_buff *skb,
+			      unsigned int header_len)
+{
+	const unsigned int head_data_len = skb_headlen(skb) > header_len ?
+					   skb_headlen(skb) - header_len : 0;
+	const struct skb_shared_info *shi = skb_shinfo(skb);
+	const struct tcphdr *tp = tcp_hdr(skb);
+	struct ahash_request *req = hp->req;
+	struct sk_buff *frag_iter;
+	struct scatterlist sg;
+	unsigned int i;
+
+	sg_init_table(&sg, 1);
+
+	sg_set_buf(&sg, ((u8 *)tp) + header_len, head_data_len);
+	ahash_request_set_crypt(req, &sg, NULL, head_data_len);
+	if (crypto_ahash_update(req))
+		return 1;
+
+	for (i = 0; i < shi->nr_frags; ++i) {
+		const skb_frag_t *f = &shi->frags[i];
+		unsigned int offset = skb_frag_off(f);
+		struct page *page;
+
+		page = skb_frag_page(f) + (offset >> PAGE_SHIFT);
+		sg_set_page(&sg, page, skb_frag_size(f), offset_in_page(offset));
+		ahash_request_set_crypt(req, &sg, NULL, skb_frag_size(f));
+		if (crypto_ahash_update(req))
+			return 1;
+	}
+
+	skb_walk_frags(skb, frag_iter)
+		if (tcp_sigpool_hash_skb_data(hp, frag_iter, 0))
+			return 1;
+
+	return 0;
+}
+EXPORT_SYMBOL(tcp_sigpool_hash_skb_data);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Per-CPU pool of crypto requests");
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 84ae2759ff1956..b9b21e5af1a7fd 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -22,17 +22,19 @@ static struct sk_buff *__skb_udp_tunnel_segment(struct sk_buff *skb,
 	int tnl_hlen = skb_inner_mac_header(skb) - skb_transport_header(skb);
 	bool remcsum, need_csum, offload_csum, gso_partial;
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
-	struct udphdr *uh = udp_hdr(skb);
 	u16 mac_offset = skb->mac_header;
 	__be16 protocol = skb->protocol;
 	u16 mac_len = skb->mac_len;
 	int udp_offset, outer_hlen;
+	struct udphdr *uh;
 	__wsum partial;
 	bool need_ipsec;
 
 	if (unlikely(!pskb_may_pull(skb, tnl_hlen)))
 		goto out;
 
+	uh = udp_hdr(skb);
+
 	/* Adjust partial header checksum to negate old length.
 	 * We cannot rely on the value contained in uh->len as it is
 	 * possible that the actual value exceeds the boundaries of the
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 825d40b505cde7..dfabd9969b3f32 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -675,6 +675,9 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		if (!skb2)
 			return 0;
 
+		/* Remove debris left by outer IPv6 stack. */
+		memset(IP6CB(skb2), 0, sizeof(*IP6CB(skb2)));
+
 		skb_dst_drop(skb2);
 		skb_pull(skb2, offset);
 		skb_reset_network_header(skb2);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index e6f1a22bc2bea2..24d097290dbc05 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -989,13 +989,13 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
 	} else if (rinfo->prefix_len > 128) {
 		return -EINVAL;
 	} else if (rinfo->prefix_len > 64) {
-		if (rinfo->length < 2) {
+		/* RFC 4191: Length MUST be 3 when Prefix Length > 64 */
+		if (rinfo->length < 3)
 			return -EINVAL;
-		}
 	} else if (rinfo->prefix_len > 0) {
-		if (rinfo->length < 1) {
+		/* RFC 4191: Length MUST be 2 or 3 when Prefix Length > 0 */
+		if (rinfo->length < 2)
 			return -EINVAL;
-		}
 	}
 
 	pref = rinfo->route_pref;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 2c579868fe81f9..689c0b383ebf97 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -665,7 +665,7 @@ static int tcp_v6_parse_md5_keys(struct sock *sk, int optname,
 			      cmd.tcpm_key, cmd.tcpm_keylen);
 }
 
-static int tcp_v6_md5_hash_headers(struct tcp_md5sig_pool *hp,
+static int tcp_v6_md5_hash_headers(struct tcp_sigpool *hp,
 				   const struct in6_addr *daddr,
 				   const struct in6_addr *saddr,
 				   const struct tcphdr *th, int nbytes)
@@ -686,39 +686,36 @@ static int tcp_v6_md5_hash_headers(struct tcp_md5sig_pool *hp,
 	_th->check = 0;
 
 	sg_init_one(&sg, bp, sizeof(*bp) + sizeof(*th));
-	ahash_request_set_crypt(hp->md5_req, &sg, NULL,
+	ahash_request_set_crypt(hp->req, &sg, NULL,
 				sizeof(*bp) + sizeof(*th));
-	return crypto_ahash_update(hp->md5_req);
+	return crypto_ahash_update(hp->req);
 }
 
 static int tcp_v6_md5_hash_hdr(char *md5_hash, const struct tcp_md5sig_key *key,
 			       const struct in6_addr *daddr, struct in6_addr *saddr,
 			       const struct tcphdr *th)
 {
-	struct tcp_md5sig_pool *hp;
-	struct ahash_request *req;
+	struct tcp_sigpool hp;
 
-	hp = tcp_get_md5sig_pool();
-	if (!hp)
-		goto clear_hash_noput;
-	req = hp->md5_req;
+	if (tcp_sigpool_start(tcp_md5_sigpool_id, &hp))
+		goto clear_hash_nostart;
 
-	if (crypto_ahash_init(req))
+	if (crypto_ahash_init(hp.req))
 		goto clear_hash;
-	if (tcp_v6_md5_hash_headers(hp, daddr, saddr, th, th->doff << 2))
+	if (tcp_v6_md5_hash_headers(&hp, daddr, saddr, th, th->doff << 2))
 		goto clear_hash;
-	if (tcp_md5_hash_key(hp, key))
+	if (tcp_md5_hash_key(&hp, key))
 		goto clear_hash;
-	ahash_request_set_crypt(req, NULL, md5_hash, 0);
-	if (crypto_ahash_final(req))
+	ahash_request_set_crypt(hp.req, NULL, md5_hash, 0);
+	if (crypto_ahash_final(hp.req))
 		goto clear_hash;
 
-	tcp_put_md5sig_pool();
+	tcp_sigpool_end(&hp);
 	return 0;
 
 clear_hash:
-	tcp_put_md5sig_pool();
-clear_hash_noput:
+	tcp_sigpool_end(&hp);
+clear_hash_nostart:
 	memset(md5_hash, 0, 16);
 	return 1;
 }
@@ -728,10 +725,9 @@ static int tcp_v6_md5_hash_skb(char *md5_hash,
 			       const struct sock *sk,
 			       const struct sk_buff *skb)
 {
-	const struct in6_addr *saddr, *daddr;
-	struct tcp_md5sig_pool *hp;
-	struct ahash_request *req;
 	const struct tcphdr *th = tcp_hdr(skb);
+	const struct in6_addr *saddr, *daddr;
+	struct tcp_sigpool hp;
 
 	if (sk) { /* valid for establish/request sockets */
 		saddr = &sk->sk_v6_rcv_saddr;
@@ -742,30 +738,28 @@ static int tcp_v6_md5_hash_skb(char *md5_hash,
 		daddr = &ip6h->daddr;
 	}
 
-	hp = tcp_get_md5sig_pool();
-	if (!hp)
-		goto clear_hash_noput;
-	req = hp->md5_req;
+	if (tcp_sigpool_start(tcp_md5_sigpool_id, &hp))
+		goto clear_hash_nostart;
 
-	if (crypto_ahash_init(req))
+	if (crypto_ahash_init(hp.req))
 		goto clear_hash;
 
-	if (tcp_v6_md5_hash_headers(hp, daddr, saddr, th, skb->len))
+	if (tcp_v6_md5_hash_headers(&hp, daddr, saddr, th, skb->len))
 		goto clear_hash;
-	if (tcp_md5_hash_skb_data(hp, skb, th->doff << 2))
+	if (tcp_sigpool_hash_skb_data(&hp, skb, th->doff << 2))
 		goto clear_hash;
-	if (tcp_md5_hash_key(hp, key))
+	if (tcp_md5_hash_key(&hp, key))
 		goto clear_hash;
-	ahash_request_set_crypt(req, NULL, md5_hash, 0);
-	if (crypto_ahash_final(req))
+	ahash_request_set_crypt(hp.req, NULL, md5_hash, 0);
+	if (crypto_ahash_final(hp.req))
 		goto clear_hash;
 
-	tcp_put_md5sig_pool();
+	tcp_sigpool_end(&hp);
 	return 0;
 
 clear_hash:
-	tcp_put_md5sig_pool();
-clear_hash_noput:
+	tcp_sigpool_end(&hp);
+clear_hash_nostart:
 	memset(md5_hash, 0, 16);
 	return 1;
 }
diff --git a/net/mac802154/scan.c b/net/mac802154/scan.c
index 087e32582dbbf9..c8f4309f9c2480 100644
--- a/net/mac802154/scan.c
+++ b/net/mac802154/scan.c
@@ -415,6 +415,7 @@ void mac802154_beacon_worker(struct work_struct *work)
 		container_of(work, struct ieee802154_local, beacon_work.work);
 	struct cfg802154_beacon_request *beacon_req;
 	struct ieee802154_sub_if_data *sdata;
+	netdevice_tracker dev_tracker;
 	struct wpan_dev *wpan_dev;
 	u8 interval;
 	int ret;
@@ -427,12 +428,14 @@ void mac802154_beacon_worker(struct work_struct *work)
 	}
 
 	sdata = IEEE802154_WPAN_DEV_TO_SUB_IF(beacon_req->wpan_dev);
+	netdev_hold(sdata->dev, &dev_tracker, GFP_ATOMIC);
 
 	/* Wait an arbitrary amount of time in case we cannot use the device */
 	if (local->suspended || !ieee802154_sdata_running(sdata)) {
 		rcu_read_unlock();
 		queue_delayed_work(local->mac_wq, &local->beacon_work,
 				   msecs_to_jiffies(1000));
+		netdev_put(sdata->dev, &dev_tracker);
 		return;
 	}
 
@@ -450,6 +453,7 @@ void mac802154_beacon_worker(struct work_struct *work)
 	if (interval < IEEE802154_ACTIVE_SCAN_DURATION)
 		queue_delayed_work(local->mac_wq, &local->beacon_work,
 				   local->beacon_interval);
+	netdev_put(sdata->dev, &dev_tracker);
 }
 
 int mac802154_stop_beacons_locked(struct ieee802154_local *local,
diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c
index 2f872d064396df..8cc538358f6a39 100644
--- a/net/ncsi/ncsi-netlink.c
+++ b/net/ncsi/ncsi-netlink.c
@@ -461,6 +461,10 @@ static int ncsi_send_cmd_nl(struct sk_buff *msg, struct genl_info *info)
 	nca.req_flags = NCSI_REQ_FLAG_NETLINK_DRIVEN;
 	nca.info = info;
 	nca.payload = ntohs(hdr->length);
+	if (nca.payload > len - sizeof(*hdr)) {
+		ret = -EINVAL;
+		goto out_netlink;
+	}
 	nca.data = data + sizeof(*hdr);
 
 	ret = ncsi_xmit_cmd(&nca);
diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h
index 9523104a90da47..40f0383883f9db 100644
--- a/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -75,7 +75,7 @@ mtype_flush(struct ip_set *set)
 		mtype_ext_cleanup(set);
 	bitmap_zero(map->members, map->elements);
 	set->elements = 0;
-	set->ext_size = 0;
+	atomic64_set(&set->ext_size, 0);
 }
 
 /* Calculate the actual memory size of the set data */
@@ -91,7 +91,7 @@ mtype_head(struct ip_set *set, struct sk_buff *skb)
 {
 	const struct mtype *map = set->data;
 	struct nlattr *nested;
-	size_t memsize = mtype_memsize(map, set->dsize) + set->ext_size;
+	size_t memsize = mtype_memsize(map, set->dsize) + atomic64_read(&set->ext_size);
 
 	nested = nla_nest_start(skb, IPSET_ATTR_DATA);
 	if (!nested)
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index f51a1af31513cd..29bf5ee74fe360 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -350,7 +350,7 @@ ip_set_init_comment(struct ip_set *set, struct ip_set_comment *comment,
 	size_t len = ext->comment ? strlen(ext->comment) : 0;
 
 	if (unlikely(c)) {
-		set->ext_size -= sizeof(*c) + strlen(c->str) + 1;
+		atomic64_sub(sizeof(*c) + strlen(c->str) + 1, &set->ext_size);
 		rcu_assign_pointer(comment->c, NULL);
 		kfree_rcu(c, rcu);
 	}
@@ -362,7 +362,7 @@ ip_set_init_comment(struct ip_set *set, struct ip_set_comment *comment,
 	if (unlikely(!c))
 		return;
 	strscpy(c->str, ext->comment, len + 1);
-	set->ext_size += sizeof(*c) + strlen(c->str) + 1;
+	atomic64_add(sizeof(*c) + strlen(c->str) + 1, &set->ext_size);
 	rcu_assign_pointer(comment->c, c);
 }
 EXPORT_SYMBOL_GPL(ip_set_init_comment);
@@ -392,7 +392,7 @@ ip_set_comment_free(struct ip_set *set, void *ptr)
 	c = rcu_dereference_protected(comment->c, 1);
 	if (unlikely(!c))
 		return;
-	set->ext_size -= sizeof(*c) + strlen(c->str) + 1;
+	atomic64_sub(sizeof(*c) + strlen(c->str) + 1, &set->ext_size);
 	rcu_assign_pointer(comment->c, NULL);
 	kfree_rcu(c, rcu);
 }
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 81ad6747bc7a4a..53b65f013594a9 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -1288,7 +1288,7 @@ mtype_head(struct ip_set *set, struct sk_buff *skb)
 	rcu_read_lock_bh();
 	t = rcu_dereference_bh(h->table);
 	mtype_ext_size(set, &elements, &ext_size);
-	memsize = mtype_ahash_memsize(h, t) + ext_size + set->ext_size;
+	memsize = mtype_ahash_memsize(h, t) + ext_size + atomic64_read(&set->ext_size);
 	htable_bits = t->htable_bits;
 	rcu_read_unlock_bh();
 
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index 83e1fdcc752d6a..9d6ab69ca1a376 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -421,7 +421,7 @@ list_set_flush(struct ip_set *set)
 	list_for_each_entry_safe(e, n, &map->members, list)
 		list_set_del(set, e);
 	set->elements = 0;
-	set->ext_size = 0;
+	atomic64_set(&set->ext_size, 0);
 }
 
 static void
@@ -455,7 +455,7 @@ list_set_head(struct ip_set *set, struct sk_buff *skb)
 {
 	const struct list_set *map = set->data;
 	struct nlattr *nested;
-	size_t memsize = list_set_memsize(map, set->dsize) + set->ext_size;
+	size_t memsize = list_set_memsize(map, set->dsize) + atomic64_read(&set->ext_size);
 
 	nested = nla_nest_start(skb, IPSET_ATTR_DATA);
 	if (!nested)
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index 811552669dac67..b2b74ce6749096 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -569,12 +569,6 @@ static inline void ip_vs_bind_xmit_v6(struct ip_vs_conn *cp)
 #endif
 
 
-static inline int ip_vs_dest_totalconns(struct ip_vs_dest *dest)
-{
-	return atomic_read(&dest->activeconns)
-		+ atomic_read(&dest->inactconns);
-}
-
 /*
  *	Bind a connection entry with a virtual service destination
  *	Called just after a new connection entry is created.
@@ -626,23 +620,22 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest)
 
 	/* Update the connection counters */
 	if (!(flags & IP_VS_CONN_F_TEMPLATE)) {
+		int tc;
+
 		/* It is a normal connection, so modify the counters
 		 * according to the flags, later the protocol can
 		 * update them on state change
 		 */
 		if (!(flags & IP_VS_CONN_F_INACTIVE))
 			atomic_inc(&dest->activeconns);
-		else
-			atomic_inc(&dest->inactconns);
+		tc = atomic_inc_return(&dest->totalconns);
+		if (tc == READ_ONCE(dest->u_threshold))
+			ip_vs_dest_update_overload(dest, 1);
 	} else {
 		/* It is a persistent connection/template, so increase
 		   the persistent connection counter */
 		atomic_inc(&dest->persistconns);
 	}
-
-	if (dest->u_threshold != 0 &&
-	    ip_vs_dest_totalconns(dest) >= dest->u_threshold)
-		dest->flags |= IP_VS_DEST_F_OVERLOAD;
 }
 
 
@@ -723,30 +716,20 @@ static inline void ip_vs_unbind_dest(struct ip_vs_conn *cp)
 
 	/* Update the connection counters */
 	if (!(cp->flags & IP_VS_CONN_F_TEMPLATE)) {
-		/* It is a normal connection, so decrease the inactconns
-		   or activeconns counter */
-		if (cp->flags & IP_VS_CONN_F_INACTIVE) {
-			atomic_dec(&dest->inactconns);
-		} else {
+		int tc;
+
+		/* It is a normal connection, so decrease the counters */
+		if (!(cp->flags & IP_VS_CONN_F_INACTIVE))
 			atomic_dec(&dest->activeconns);
-		}
+		tc = atomic_fetch_dec(&dest->totalconns);
+		if (tc == READ_ONCE(dest->l_threshold_val))
+			ip_vs_dest_update_overload(dest, -1);
 	} else {
 		/* It is a persistent connection/template, so decrease
 		   the persistent connection counter */
 		atomic_dec(&dest->persistconns);
 	}
 
-	if (dest->l_threshold != 0) {
-		if (ip_vs_dest_totalconns(dest) < dest->l_threshold)
-			dest->flags &= ~IP_VS_DEST_F_OVERLOAD;
-	} else if (dest->u_threshold != 0) {
-		if (ip_vs_dest_totalconns(dest) * 4 < dest->u_threshold * 3)
-			dest->flags &= ~IP_VS_DEST_F_OVERLOAD;
-	} else {
-		if (dest->flags & IP_VS_DEST_F_OVERLOAD)
-			dest->flags &= ~IP_VS_DEST_F_OVERLOAD;
-	}
-
 	ip_vs_dest_put(dest);
 }
 
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index e49a4840effb3d..a722bacce4613f 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -747,28 +747,27 @@ static int ip_vs_route_me_harder(struct netns_ipvs *ipvs, int af,
  */
 void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
 		    struct ip_vs_conn *cp, int inout, unsigned int toff,
-		    bool has_ports)
+		    bool has_ports, struct ip_vs_iphdr *ciph)
 {
 	struct iphdr *iph	 = ip_hdr(skb);
 	struct icmphdr *icmph	 = (struct icmphdr *)(skb->data + toff);
-	struct iphdr *ciph	 = (struct iphdr *)(icmph + 1);
-	unsigned int coff __maybe_unused = toff + sizeof(struct icmphdr);
+	struct iphdr *cih	 = (struct iphdr *)(icmph + 1);
 
 	if (inout) {
 		iph->saddr = cp->vaddr.ip;
 		ip_send_check(iph);
-		ciph->daddr = cp->vaddr.ip;
-		ip_send_check(ciph);
+		cih->daddr = cp->vaddr.ip;
+		ip_send_check(cih);
 	} else {
 		iph->daddr = cp->daddr.ip;
 		ip_send_check(iph);
-		ciph->saddr = cp->daddr.ip;
-		ip_send_check(ciph);
+		cih->saddr = cp->daddr.ip;
+		ip_send_check(cih);
 	}
 
 	/* the TCP/UDP/SCTP port */
 	if (has_ports) {
-		__be16 *ports = (void *)ciph + ciph->ihl*4;
+		__be16 *ports = (void *)(skb->data + ciph->len);
 
 		if (inout)
 			ports[1] = cp->vport;
@@ -782,10 +781,10 @@ void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
 	skb->ip_summed = CHECKSUM_UNNECESSARY;
 
 	if (inout)
-		IP_VS_DBG_PKT(11, AF_INET, pp, skb, coff,
+		IP_VS_DBG_PKT(11, AF_INET, pp, skb, ciph->off,
 			      "Forwarding altered outgoing ICMP");
 	else
-		IP_VS_DBG_PKT(11, AF_INET, pp, skb, coff,
+		IP_VS_DBG_PKT(11, AF_INET, pp, skb, ciph->off,
 			      "Forwarding altered incoming ICMP");
 }
 
@@ -878,7 +877,7 @@ static int handle_response_icmp(int af, struct sk_buff *skb,
 		ip_vs_nat_icmp_v6(skb, pp, cp, 1, toff, has_ports, ciph);
 	else
 #endif
-		ip_vs_nat_icmp(skb, pp, cp, 1, toff, has_ports);
+		ip_vs_nat_icmp(skb, pp, cp, 1, toff, has_ports, ciph);
 
 	if (ip_vs_route_me_harder(cp->ipvs, af, skb, hooknum))
 		goto out;
@@ -914,7 +913,7 @@ static int ip_vs_out_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb,
 	struct ip_vs_iphdr ciph;
 	struct ip_vs_conn *cp;
 	struct ip_vs_protocol *pp;
-	unsigned int offset, ihl;
+	unsigned int offset;
 	union nf_inet_addr snet;
 
 	*related = 1;
@@ -927,7 +926,6 @@ static int ip_vs_out_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb,
 			return NF_ACCEPT;
 	}
 
-	ihl = ipvsh->len;
 	offset = ipvsh->len;
 	ic = skb_header_pointer(skb, offset, sizeof(_icmph), &_icmph);
 	if (ic == NULL)
@@ -953,11 +951,15 @@ static int ip_vs_out_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb,
 
 	/* Now find the contained IP header */
 	offset += sizeof(_icmph);
+	if (!ip_vs_fill_iph_skb_icmp(AF_INET, skb, offset, true, &ciph))
+		return NF_ACCEPT; /* The packet looks wrong, ignore */
+
 	cih = skb_header_pointer(skb, offset, sizeof(_ciph), &_ciph);
-	if (!(cih && cih->version == 4 && cih->ihl >= 5))
+	if (!(cih && cih->version == 4 &&
+	      ciph.len - ciph.off >= sizeof(struct iphdr)))
 		return NF_ACCEPT; /* The packet looks wrong, ignore */
 
-	pp = ip_vs_proto_get(cih->protocol);
+	pp = ip_vs_proto_get(ciph.protocol);
 	if (!pp)
 		return NF_ACCEPT;
 
@@ -968,8 +970,6 @@ static int ip_vs_out_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb,
 	IP_VS_DBG_PKT(11, AF_INET, pp, skb, offset,
 		      "Checking outgoing ICMP for");
 
-	ip_vs_fill_iph_skb_icmp(AF_INET, skb, offset, true, &ciph);
-
 	/* The embedded headers contain source and dest in reverse order */
 	cp = INDIRECT_CALL_1(pp->conn_out_get, ip_vs_conn_out_get_proto,
 			     ipvs, AF_INET, skb, &ciph);
@@ -977,8 +977,8 @@ static int ip_vs_out_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb,
 		return NF_ACCEPT;
 
 	snet.ip = ipvsh->saddr.ip;
-	return handle_response_icmp(AF_INET, skb, &snet, cp, pp, &ciph, ihl,
-				    hooknum);
+	return handle_response_icmp(AF_INET, skb, &snet, cp, pp, &ciph,
+				    ipvsh->len, hooknum);
 }
 
 #ifdef CONFIG_IP_VS_IPV6
@@ -1621,10 +1621,12 @@ ip_vs_in_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb, int *related,
 	/* Now find the contained IP header */
 	offset += sizeof(_icmph);
 	cih = skb_header_pointer(skb, offset, sizeof(_ciph), &_ciph);
-	if (!(cih && cih->version == 4 && cih->ihl >= 5))
+	if (!cih)
 		return NF_ACCEPT; /* The packet looks wrong, ignore */
-	raddr = (union nf_inet_addr *)&cih->daddr;
 	hlen_ipip = cih->ihl * 4;
+	if (!(cih->version == 4 && hlen_ipip >= sizeof(struct iphdr)))
+		return NF_ACCEPT; /* The packet looks wrong, ignore */
+	raddr = (union nf_inet_addr *)&cih->daddr;
 
 	/* Special case for errors for IPIP/UDP/GRE tunnel packets */
 	tunnel = false;
@@ -1641,9 +1643,6 @@ ip_vs_in_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb, int *related,
 		if (!dest || dest->tun_type != IP_VS_CONN_F_TUNNEL_TYPE_IPIP)
 			return NF_ACCEPT;
 		offset += hlen_ipip;
-		cih = skb_header_pointer(skb, offset, sizeof(_ciph), &_ciph);
-		if (!(cih && cih->version == 4 && cih->ihl >= 5))
-			return NF_ACCEPT; /* The packet looks wrong, ignore */
 		tunnel = true;
 	} else if ((cih->protocol == IPPROTO_UDP ||	/* Can be UDP encap */
 		    cih->protocol == IPPROTO_GRE) &&	/* Can be GRE encap */
@@ -1668,21 +1667,25 @@ ip_vs_in_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb, int *related,
 			/* Skip IP and UDP/GRE tunnel headers */
 			offset = offset2 + ulen;
 			/* Now we should be at the original IP header */
-			cih = skb_header_pointer(skb, offset, sizeof(_ciph),
-						 &_ciph);
-			if (cih && cih->version == 4 && cih->ihl >= 5 &&
-			    iproto == IPPROTO_IPIP)
+			if (iproto == IPPROTO_IPIP)
 				tunnel = true;
 			else
 				return NF_ACCEPT;
 		}
 	}
 
-	pd = ip_vs_proto_data_get(ipvs, cih->protocol);
+	if (!ip_vs_fill_iph_skb_icmp(AF_INET, skb, offset, !tunnel, &ciph))
+		return NF_ACCEPT;
+	pd = ip_vs_proto_data_get(ipvs, ciph.protocol);
 	if (!pd)
 		return NF_ACCEPT;
 	pp = pd->pp;
 
+	cih = skb_header_pointer(skb, offset, sizeof(_ciph), &_ciph);
+	if (!(cih && cih->version == 4 &&
+	      ciph.len - ciph.off >= sizeof(struct iphdr)))
+		return NF_ACCEPT; /* The packet looks wrong, ignore */
+
 	/* Is the embedded protocol header present? */
 	if (unlikely(cih->frag_off & htons(IP_OFFSET) && !pp->dont_defrag))
 		return NF_ACCEPT;
@@ -1690,9 +1693,6 @@ ip_vs_in_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb, int *related,
 	IP_VS_DBG_PKT(11, AF_INET, pp, skb, offset,
 		      "Checking incoming ICMP for");
 
-	offset2 = offset;
-	ip_vs_fill_iph_skb_icmp(AF_INET, skb, offset, !tunnel, &ciph);
-
 	/* The embedded headers contain source and dest in reverse order.
 	 * For IPIP/UDP/GRE tunnel this is error for request, not for reply.
 	 */
@@ -1722,11 +1722,12 @@ ip_vs_in_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb, int *related,
 	}
 
 	if (tunnel) {
-		unsigned int hlen_orig = cih->ihl * 4;
+		unsigned int hlen_orig = ciph.len - ciph.off;
 		__be32 info = ic->un.gateway;
 		__u8 type = ic->type;
 		__u8 code = ic->code;
 
+		offset2 = offset;
 		/* Update the MTU */
 		if (ic->type == ICMP_DEST_UNREACH &&
 		    ic->code == ICMP_FRAG_NEEDED) {
@@ -1767,6 +1768,7 @@ ip_vs_in_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb, int *related,
 		if (pskb_pull(skb, offset2) == NULL)
 			goto ignore_tunnel;
 		skb_reset_network_header(skb);
+		memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 		/* Ensure the IP header is present in headroom */
 		if (!pskb_may_pull(skb, hlen_orig))
 			goto ignore_tunnel;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 27b7552b1e2481..c98bdcea8b2f5b 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -960,6 +960,40 @@ void ip_vs_stats_free(struct ip_vs_stats *stats)
 	}
 }
 
+/* Update overload flag based on number of dest conns and lower/upper
+ * connection thresholds:
+ * - conns reach u_threshold and exceed it: set the flag
+ * - conns go below l_threshold (or 75% of u_threshold): clear the flag
+ */
+static void __ip_vs_dest_update_overload(struct ip_vs_dest *dest, int mode)
+{
+	int conns;
+	u32 l, u;
+
+	lockdep_assert_held(&dest->dst_lock);
+	u = READ_ONCE(dest->u_threshold);
+	if (!u)
+		goto unset;
+	l = READ_ONCE(dest->l_threshold_val);
+	conns = atomic_read(&dest->totalconns);
+	if (conns >= (mode > 0 ? l : u)) {
+		dest->flags |= IP_VS_DEST_F_OVERLOAD;
+		return;
+	}
+	if (conns >= (mode < 0 ? u : l))
+		return;
+
+unset:
+	dest->flags &= ~IP_VS_DEST_F_OVERLOAD;
+}
+
+void ip_vs_dest_update_overload(struct ip_vs_dest *dest, int mode)
+{
+	spin_lock_bh(&dest->dst_lock);
+	__ip_vs_dest_update_overload(dest, mode);
+	spin_unlock_bh(&dest->dst_lock);
+}
+
 /*
  *	Update a destination in the given service
  */
@@ -1026,10 +1060,19 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest,
 	/* set the dest status flags */
 	dest->flags |= IP_VS_DEST_F_AVAILABLE;
 
-	if (udest->u_threshold == 0 || udest->u_threshold > dest->u_threshold)
-		dest->flags &= ~IP_VS_DEST_F_OVERLOAD;
-	dest->u_threshold = udest->u_threshold;
-	dest->l_threshold = udest->l_threshold;
+	if (READ_ONCE(dest->u_threshold) != udest->u_threshold ||
+	    READ_ONCE(dest->l_threshold) != udest->l_threshold) {
+		spin_lock_bh(&dest->dst_lock);
+		WRITE_ONCE(dest->u_threshold, udest->u_threshold);
+		WRITE_ONCE(dest->l_threshold, udest->l_threshold);
+		/* Low threshold defaults to 75% of upper threshold */
+		WRITE_ONCE(dest->l_threshold_val,
+			   udest->l_threshold ? :
+			   (udest->u_threshold -
+			    (udest->u_threshold >> 2)));
+		__ip_vs_dest_update_overload(dest, 0);
+		spin_unlock_bh(&dest->dst_lock);
+	}
 
 	dest->af = udest->af;
 
@@ -1101,7 +1144,7 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
 	dest->port = udest->port;
 
 	atomic_set(&dest->activeconns, 0);
-	atomic_set(&dest->inactconns, 0);
+	atomic_set(&dest->totalconns, 0);
 	atomic_set(&dest->persistconns, 0);
 	refcount_set(&dest->refcnt, 1);
 
@@ -1142,6 +1185,9 @@ ip_vs_add_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
 		return -ERANGE;
 	}
 
+	if (udest->u_threshold > INT_MAX)
+		return -EINVAL;
+
 	if (udest->tun_type == IP_VS_CONN_F_TUNNEL_TYPE_GUE) {
 		if (udest->tun_port == 0) {
 			pr_err("%s(): tunnel port is zero\n", __func__);
@@ -1212,6 +1258,9 @@ ip_vs_edit_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
 		return -ERANGE;
 	}
 
+	if (udest->u_threshold > INT_MAX)
+		return -EINVAL;
+
 	if (udest->tun_type == IP_VS_CONN_F_TUNNEL_TYPE_GUE) {
 		if (udest->tun_port == 0) {
 			pr_err("%s(): tunnel port is zero\n", __func__);
@@ -2456,7 +2505,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
 					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
 					   atomic_read(&dest->weight),
 					   atomic_read(&dest->activeconns),
-					   atomic_read(&dest->inactconns));
+					   ip_vs_dest_inactconns(dest));
 			else
 #endif
 				seq_printf(seq,
@@ -2467,7 +2516,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v)
 					   ip_vs_fwd_name(atomic_read(&dest->conn_flags)),
 					   atomic_read(&dest->weight),
 					   atomic_read(&dest->activeconns),
-					   atomic_read(&dest->inactconns));
+					   ip_vs_dest_inactconns(dest));
 
 		}
 	}
@@ -2950,10 +2999,10 @@ __ip_vs_get_dest_entries(struct netns_ipvs *ipvs, const struct ip_vs_get_dests *
 			entry.port = dest->port;
 			entry.conn_flags = atomic_read(&dest->conn_flags);
 			entry.weight = atomic_read(&dest->weight);
-			entry.u_threshold = dest->u_threshold;
-			entry.l_threshold = dest->l_threshold;
+			entry.u_threshold = READ_ONCE(dest->u_threshold);
+			entry.l_threshold = READ_ONCE(dest->l_threshold);
 			entry.activeconns = atomic_read(&dest->activeconns);
-			entry.inactconns = atomic_read(&dest->inactconns);
+			entry.inactconns = ip_vs_dest_inactconns(dest);
 			entry.persistconns = atomic_read(&dest->persistconns);
 			ip_vs_copy_stats(&kstats, &dest->stats);
 			ip_vs_export_stats_user(&entry.stats, &kstats);
@@ -3552,12 +3601,14 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest)
 			 dest->tun_port) ||
 	    nla_put_u16(skb, IPVS_DEST_ATTR_TUN_FLAGS,
 			dest->tun_flags) ||
-	    nla_put_u32(skb, IPVS_DEST_ATTR_U_THRESH, dest->u_threshold) ||
-	    nla_put_u32(skb, IPVS_DEST_ATTR_L_THRESH, dest->l_threshold) ||
+	    nla_put_u32(skb, IPVS_DEST_ATTR_U_THRESH,
+			READ_ONCE(dest->u_threshold)) ||
+	    nla_put_u32(skb, IPVS_DEST_ATTR_L_THRESH,
+			READ_ONCE(dest->l_threshold)) ||
 	    nla_put_u32(skb, IPVS_DEST_ATTR_ACTIVE_CONNS,
 			atomic_read(&dest->activeconns)) ||
 	    nla_put_u32(skb, IPVS_DEST_ATTR_INACT_CONNS,
-			atomic_read(&dest->inactconns)) ||
+			ip_vs_dest_inactconns(dest)) ||
 	    nla_put_u32(skb, IPVS_DEST_ATTR_PERSIST_CONNS,
 			atomic_read(&dest->persistconns)) ||
 	    nla_put_u16(skb, IPVS_DEST_ATTR_ADDR_FAMILY, dest->af))
diff --git a/net/netfilter/ipvs/ip_vs_est.c b/net/netfilter/ipvs/ip_vs_est.c
index b48d3a09e21742..dc12da2a5f38dd 100644
--- a/net/netfilter/ipvs/ip_vs_est.c
+++ b/net/netfilter/ipvs/ip_vs_est.c
@@ -186,8 +186,11 @@ static int ip_vs_estimation_kthread(void *data)
 		}
 
 		/* kthread 0 will handle the calc phase */
-		if (ipvs->est_calc_phase)
+		if (ipvs->est_calc_phase) {
 			ip_vs_est_calc_phase(ipvs);
+			if (kthread_should_stop() || !READ_ONCE(ipvs->enable))
+				return 0;
+		}
 	}
 
 	while (1) {
@@ -262,6 +265,7 @@ int ip_vs_est_kthread_start(struct netns_ipvs *ipvs,
 		kd->task = NULL;
 		goto out;
 	}
+	get_task_struct(kd->task);
 
 	set_user_nice(kd->task, sysctl_est_nice(ipvs));
 	set_cpus_allowed_ptr(kd->task, sysctl_est_cpulist(ipvs));
@@ -277,7 +281,7 @@ void ip_vs_est_kthread_stop(struct ip_vs_est_kt_data *kd)
 {
 	if (kd->task) {
 		pr_info("stopping estimator thread %d...\n", kd->id);
-		kthread_stop(kd->task);
+		kthread_stop_put(kd->task);
 		kd->task = NULL;
 	}
 }
@@ -509,7 +513,7 @@ static void ip_vs_est_kthread_destroy(struct ip_vs_est_kt_data *kd)
 	if (kd) {
 		if (kd->task) {
 			pr_info("stop unused estimator thread %d...\n", kd->id);
-			kthread_stop(kd->task);
+			kthread_stop_put(kd->task);
 		}
 		ip_vs_stats_free(kd->calc_stats);
 		kfree(kd);
diff --git a/net/netfilter/ipvs/ip_vs_lc.c b/net/netfilter/ipvs/ip_vs_lc.c
index 9d34d81fc6f1c0..534db3c4a0160f 100644
--- a/net/netfilter/ipvs/ip_vs_lc.c
+++ b/net/netfilter/ipvs/ip_vs_lc.c
@@ -31,7 +31,7 @@ ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
 
 	/*
 	 * Simply select the server with the least number of
-	 *        (activeconns<<5) + inactconns
+	 *        (activeconns*256) + totalconns
 	 * Except whose weight is equal to zero.
 	 * If the weight is equal to zero, it means that the server is
 	 * quiesced, the existing connections to the server still get
@@ -57,7 +57,7 @@ ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb,
 			      IP_VS_DBG_ADDR(least->af, &least->addr),
 			      ntohs(least->port),
 			      atomic_read(&least->activeconns),
-			      atomic_read(&least->inactconns));
+			      ip_vs_dest_inactconns(least));
 
 	return least;
 }
diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index 3dbd3096e1637b..fb8af6b15a3999 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -193,7 +193,7 @@ sctp_csum_check(int af, struct sk_buff *skb, struct ip_vs_protocol *pp,
 	struct sctphdr *sh;
 	__le32 cmp, val;
 
-	if (!ip_vs_checksum_needed(skb, af))
+	if (!ip_vs_checksum_needed(skb))
 		return 1;
 	sh = (struct sctphdr *)(skb->data + sctphoff);
 	cmp = sh->checksum;
@@ -446,12 +446,10 @@ set_sctp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
 			if (!(cp->flags & IP_VS_CONN_F_INACTIVE) &&
 				(next_state != IP_VS_SCTP_S_ESTABLISHED)) {
 				atomic_dec(&dest->activeconns);
-				atomic_inc(&dest->inactconns);
 				cp->flags |= IP_VS_CONN_F_INACTIVE;
 			} else if ((cp->flags & IP_VS_CONN_F_INACTIVE) &&
 				   (next_state == IP_VS_SCTP_S_ESTABLISHED)) {
 				atomic_inc(&dest->activeconns);
-				atomic_dec(&dest->inactconns);
 				cp->flags &= ~IP_VS_CONN_F_INACTIVE;
 			}
 		}
diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c
index 1ac9c233537d34..944efd34290cde 100644
--- a/net/netfilter/ipvs/ip_vs_proto_tcp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c
@@ -527,12 +527,10 @@ set_tcp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp,
 			if (!(cp->flags & IP_VS_CONN_F_INACTIVE) &&
 			    !tcp_state_active(new_state)) {
 				atomic_dec(&dest->activeconns);
-				atomic_inc(&dest->inactconns);
 				cp->flags |= IP_VS_CONN_F_INACTIVE;
 			} else if ((cp->flags & IP_VS_CONN_F_INACTIVE) &&
 				   tcp_state_active(new_state)) {
 				atomic_inc(&dest->activeconns);
-				atomic_dec(&dest->inactconns);
 				cp->flags &= ~IP_VS_CONN_F_INACTIVE;
 			}
 		}
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 4174076c66fa77..515346bf915aec 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -879,13 +879,10 @@ static void ip_vs_proc_conn(struct netns_ipvs *ipvs, struct ip_vs_conn_param *pa
 		spin_lock_bh(&cp->lock);
 		if ((cp->flags ^ flags) & IP_VS_CONN_F_INACTIVE &&
 		    !(flags & IP_VS_CONN_F_TEMPLATE) && dest) {
-			if (flags & IP_VS_CONN_F_INACTIVE) {
+			if (flags & IP_VS_CONN_F_INACTIVE)
 				atomic_dec(&dest->activeconns);
-				atomic_inc(&dest->inactconns);
-			} else {
+			else
 				atomic_inc(&dest->activeconns);
-				atomic_dec(&dest->inactconns);
-			}
 		}
 		flags &= IP_VS_CONN_F_BACKUP_UPD_MASK;
 		flags |= cp->flags & ~IP_VS_CONN_F_BACKUP_UPD_MASK;
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index c214e5d05524c3..5b37e92df02c59 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -1551,7 +1551,7 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 	if (skb_cow(skb, rt->dst.dev->hard_header_len))
 		goto tx_error;
 
-	ip_vs_nat_icmp(skb, pp, cp, 0, toff, has_ports);
+	ip_vs_nat_icmp(skb, pp, cp, 0, toff, has_ports, ciph);
 
 	/* Another hack: avoid icmp_send in ip_fragment */
 	skb->ignore_df = 1;
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index c928ff63b10e47..aaf97483a03754 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -79,6 +79,12 @@ void nf_ct_l4proto_log_invalid(const struct sk_buff *skb,
 	struct net *net;
 	va_list args;
 
+	/* nfnetlink_log may re-enter conntrack attribute dumping and try to
+	 * take ct->lock again via helpers such as tcp_to_nlattr(), so invalid
+	 * conntrack logs must only be emitted after dropping ct->lock.
+	 */
+	lockdep_assert_not_held(&ct->lock);
+
 	net = nf_ct_net(ct);
 	if (likely(net->ct.sysctl_log_invalid == 0))
 		return;
diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c
index 0dd55d3fba38da..ef51f0babf94a9 100644
--- a/net/netfilter/nf_conntrack_proto_sctp.c
+++ b/net/netfilter/nf_conntrack_proto_sctp.c
@@ -341,10 +341,12 @@ int nf_conntrack_sctp_packet(struct nf_conn *ct,
 	struct sctphdr _sctph;
 	const struct sctp_chunkhdr *sch;
 	struct sctp_chunkhdr _sch;
+	bool log_invalid = false;
 	u_int32_t offset, count;
 	unsigned int *timeouts;
 	unsigned long map[256 / sizeof(unsigned long)] = { 0 };
 	bool ignore = false;
+	u8 invalid_type = 0;
 
 	if (sctp_error(skb, dataoff, state))
 		return -NF_ACCEPT;
@@ -456,10 +458,8 @@ int nf_conntrack_sctp_packet(struct nf_conn *ct,
 
 		/* Invalid */
 		if (new_state == SCTP_CONNTRACK_MAX) {
-			nf_ct_l4proto_log_invalid(skb, ct, state,
-						  "Invalid, old_state %d, dir %d, type %d",
-						  old_state, dir, sch->type);
-
+			log_invalid = true;
+			invalid_type = sch->type;
 			goto out_unlock;
 		}
 
@@ -534,6 +534,10 @@ int nf_conntrack_sctp_packet(struct nf_conn *ct,
 
 out_unlock:
 	spin_unlock_bh(&ct->lock);
+	if (log_invalid)
+		nf_ct_l4proto_log_invalid(skb, ct, state,
+					  "Invalid, old_state %d, dir %d, type %d",
+					  old_state, dir, invalid_type);
 out:
 	return -NF_ACCEPT;
 }
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 228005a66d529b..2d39421dcf9d84 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -480,37 +480,81 @@ static void tcp_init_sender(struct ip_ct_tcp_state *sender,
 	}
 }
 
-__printf(6, 7)
-static enum nf_ct_tcp_action nf_tcp_log_invalid(const struct sk_buff *skb,
-						const struct nf_conn *ct,
-						const struct nf_hook_state *state,
-						const struct ip_ct_tcp_state *sender,
-						enum nf_ct_tcp_action ret,
-						const char *fmt, ...)
+enum nf_tcp_invalid_log_type {
+	NF_TCP_LOG_NONE,
+	NF_TCP_LOG_OVERSHOT,
+	NF_TCP_LOG_SEQ_OVER,
+	NF_TCP_LOG_ACK_OVER,
+	NF_TCP_LOG_SEQ_UNDER,
+	NF_TCP_LOG_ACK_UNDER,
+};
+
+struct nf_tcp_invalid_log {
+	enum nf_tcp_invalid_log_type type;
+	u32 value;
+};
+
+static enum nf_ct_tcp_action
+nf_tcp_store_invalid(const struct nf_conn *ct,
+		     const struct ip_ct_tcp_state *sender,
+		     struct nf_tcp_invalid_log *log,
+		     enum nf_ct_tcp_action ret,
+		     enum nf_tcp_invalid_log_type type,
+		     u32 value)
 {
 	const struct nf_tcp_net *tn = nf_tcp_pernet(nf_ct_net(ct));
-	struct va_format vaf;
-	va_list args;
 	bool be_liberal;
 
 	be_liberal = sender->flags & IP_CT_TCP_FLAG_BE_LIBERAL || tn->tcp_be_liberal;
 	if (be_liberal)
 		return NFCT_TCP_ACCEPT;
 
-	va_start(args, fmt);
-	vaf.fmt = fmt;
-	vaf.va = &args;
-	nf_ct_l4proto_log_invalid(skb, ct, state, "%pV", &vaf);
-	va_end(args);
-
+	log->type = type;
+	log->value = value;
 	return ret;
 }
 
+static void nf_tcp_log_invalid(const struct sk_buff *skb,
+			       const struct nf_conn *ct,
+			       const struct nf_hook_state *state,
+			       const struct nf_tcp_invalid_log *log)
+{
+	switch (log->type) {
+	case NF_TCP_LOG_OVERSHOT:
+		nf_ct_l4proto_log_invalid(skb, ct, state,
+					  "%u bytes more than expected",
+					  log->value);
+		break;
+	case NF_TCP_LOG_SEQ_OVER:
+		nf_ct_l4proto_log_invalid(skb, ct, state,
+					  "SEQ is over upper bound %u (over the window of the receiver)",
+					  log->value);
+		break;
+	case NF_TCP_LOG_ACK_OVER:
+		nf_ct_l4proto_log_invalid(skb, ct, state,
+					  "ACK is over upper bound %u (ACKed data not seen yet)",
+					  log->value);
+		break;
+	case NF_TCP_LOG_SEQ_UNDER:
+		nf_ct_l4proto_log_invalid(skb, ct, state,
+					  "SEQ is under lower bound %u (already ACKed data retransmitted)",
+					  log->value);
+		break;
+	case NF_TCP_LOG_ACK_UNDER:
+		nf_ct_l4proto_log_invalid(skb, ct, state,
+					  "ignored ACK under lower bound %u (possible overly delayed)",
+					  log->value);
+		break;
+	case NF_TCP_LOG_NONE:
+		break;
+	}
+}
+
 static enum nf_ct_tcp_action
 tcp_in_window(struct nf_conn *ct, enum ip_conntrack_dir dir,
 	      unsigned int index, const struct sk_buff *skb,
 	      unsigned int dataoff, const struct tcphdr *tcph,
-	      const struct nf_hook_state *hook_state)
+	      struct nf_tcp_invalid_log *log)
 {
 	struct ip_ct_tcp *state = &ct->proto.tcp;
 	struct ip_ct_tcp_state *sender = &state->seen[dir];
@@ -640,31 +684,29 @@ tcp_in_window(struct nf_conn *ct, enum ip_conntrack_dir dir,
 			sender->td_end = end;
 			sender->flags |= IP_CT_TCP_FLAG_DATA_UNACKNOWLEDGED;
 
-			return nf_tcp_log_invalid(skb, ct, hook_state, sender, NFCT_TCP_IGNORE,
-						  "%u bytes more than expected", overshot);
+			return nf_tcp_store_invalid(ct, sender, log, NFCT_TCP_IGNORE,
+				   NF_TCP_LOG_OVERSHOT, overshot);
 		}
 
-		return nf_tcp_log_invalid(skb, ct, hook_state, sender, NFCT_TCP_INVALID,
-					  "SEQ is over upper bound %u (over the window of the receiver)",
-					  sender->td_maxend + 1);
+		return nf_tcp_store_invalid(ct, sender, log, NFCT_TCP_INVALID,
+				   NF_TCP_LOG_SEQ_OVER, sender->td_maxend + 1);
 	}
 
 	if (!before(sack, receiver->td_end + 1))
-		return nf_tcp_log_invalid(skb, ct, hook_state, sender, NFCT_TCP_INVALID,
-					  "ACK is over upper bound %u (ACKed data not seen yet)",
-					  receiver->td_end + 1);
+		return nf_tcp_store_invalid(ct, sender, log, NFCT_TCP_INVALID,
+					   NF_TCP_LOG_ACK_OVER, receiver->td_end + 1);
 
 	/* Is the ending sequence in the receive window (if available)? */
 	in_recv_win = !receiver->td_maxwin ||
 		      after(end, sender->td_end - receiver->td_maxwin - 1);
 	if (!in_recv_win)
-		return nf_tcp_log_invalid(skb, ct, hook_state, sender, NFCT_TCP_IGNORE,
-					  "SEQ is under lower bound %u (already ACKed data retransmitted)",
-					  sender->td_end - receiver->td_maxwin - 1);
+		return nf_tcp_store_invalid(ct, sender, log, NFCT_TCP_IGNORE,
+					   NF_TCP_LOG_SEQ_UNDER,
+					   sender->td_end - receiver->td_maxwin - 1);
 	if (!after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1))
-		return nf_tcp_log_invalid(skb, ct, hook_state, sender, NFCT_TCP_IGNORE,
-					  "ignored ACK under lower bound %u (possible overly delayed)",
-					  receiver->td_end - MAXACKWINDOW(sender) - 1);
+		return nf_tcp_store_invalid(ct, sender, log, NFCT_TCP_IGNORE,
+					   NF_TCP_LOG_ACK_UNDER,
+					   receiver->td_end - MAXACKWINDOW(sender) - 1);
 
 	/* Take into account window scaling (RFC 1323). */
 	if (!tcph->syn)
@@ -719,11 +761,8 @@ tcp_in_window(struct nf_conn *ct, enum ip_conntrack_dir dir,
 	return NFCT_TCP_ACCEPT;
 }
 
-static void __cold nf_tcp_handle_invalid(struct nf_conn *ct,
-					 enum ip_conntrack_dir dir,
-					 int index,
-					 const struct sk_buff *skb,
-					 const struct nf_hook_state *hook_state)
+static bool __cold
+nf_tcp_handle_invalid(struct nf_conn *ct, enum ip_conntrack_dir dir, int index)
 {
 	const unsigned int *timeouts;
 	const struct nf_tcp_net *tn;
@@ -732,7 +771,7 @@ static void __cold nf_tcp_handle_invalid(struct nf_conn *ct,
 
 	if (!test_bit(IPS_ASSURED_BIT, &ct->status) ||
 	    test_bit(IPS_FIXED_TIMEOUT_BIT, &ct->status))
-		return;
+		return false;
 
 	/* We don't want to have connections hanging around in ESTABLISHED
 	 * state for long time 'just because' conntrack deemed a FIN/RST
@@ -747,7 +786,7 @@ static void __cold nf_tcp_handle_invalid(struct nf_conn *ct,
 	case TCP_FIN_SET:
 		break;
 	default:
-		return;
+		return false;
 	}
 
 	if (ct->proto.tcp.last_dir != dir &&
@@ -755,7 +794,7 @@ static void __cold nf_tcp_handle_invalid(struct nf_conn *ct,
 	     ct->proto.tcp.last_index == TCP_RST_SET)) {
 		expires = nf_ct_expires(ct);
 		if (expires < 120 * HZ)
-			return;
+			return false;
 
 		tn = nf_tcp_pernet(nf_ct_net(ct));
 		timeouts = nf_ct_timeout_lookup(ct);
@@ -764,16 +803,15 @@ static void __cold nf_tcp_handle_invalid(struct nf_conn *ct,
 
 		timeout = READ_ONCE(timeouts[TCP_CONNTRACK_UNACK]);
 		if (expires > timeout) {
-			nf_ct_l4proto_log_invalid(skb, ct, hook_state,
-					  "packet (index %d, dir %d) response for index %d lower timeout to %u",
-					  index, dir, ct->proto.tcp.last_index, timeout);
-
 			WRITE_ONCE(ct->timeout, timeout + nfct_time_stamp);
+			return true;
 		}
 	} else {
 		ct->proto.tcp.last_index = index;
 		ct->proto.tcp.last_dir = dir;
 	}
+
+	return false;
 }
 
 /* table of valid flag combinations - PUSH, ECE and CWR are always valid */
@@ -968,7 +1006,9 @@ int nf_conntrack_tcp_packet(struct nf_conn *ct,
 	struct net *net = nf_ct_net(ct);
 	struct nf_tcp_net *tn = nf_tcp_pernet(net);
 	enum tcp_conntrack new_state, old_state;
+	struct nf_tcp_invalid_log log = {};
 	unsigned int index, *timeouts;
+	bool lowered_timeout = false;
 	enum nf_ct_tcp_action res;
 	enum ip_conntrack_dir dir;
 	const struct tcphdr *th;
@@ -1251,14 +1291,18 @@ int nf_conntrack_tcp_packet(struct nf_conn *ct,
 	}
 
 	res = tcp_in_window(ct, dir, index,
-			    skb, dataoff, th, state);
+			    skb, dataoff, th, &log);
 	switch (res) {
 	case NFCT_TCP_IGNORE:
 		spin_unlock_bh(&ct->lock);
+		nf_tcp_log_invalid(skb, ct, state, &log);
 		return NF_ACCEPT;
 	case NFCT_TCP_INVALID:
-		nf_tcp_handle_invalid(ct, dir, index, skb, state);
+		lowered_timeout = nf_tcp_handle_invalid(ct, dir, index);
 		spin_unlock_bh(&ct->lock);
+		nf_tcp_log_invalid(skb, ct, state, &log);
+		if (lowered_timeout)
+			nf_ct_l4proto_log_invalid(skb, ct, state, "lowered timeout to UNACK");
 		return -NF_ACCEPT;
 	case NFCT_TCP_ACCEPT:
 		break;
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index fb5b72700d82b1..5706f2393fb707 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -1084,9 +1084,8 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
 			error = -EEXIST;
 			goto err_unlock_ovs;
 		}
-		/* The flow identifier has to be the same for flow updates.
-		 * Look for any overlapping flow.
-		 */
+
+		/* Look for any overlapping flow. */
 		if (unlikely(!ovs_flow_cmp(flow, &match))) {
 			if (ovs_identifier_is_key(&flow->id))
 				flow = ovs_flow_tbl_lookup_exact(&dp->table,
@@ -1098,6 +1097,30 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info)
 				goto err_unlock_ovs;
 			}
 		}
+
+		if (unlikely(reply)) {
+			size_t cur, req;
+
+			cur = ovs_flow_cmd_msg_size(acts, &new_flow->id,
+						    ufid_flags);
+			req = ovs_flow_cmd_msg_size(acts, &flow->id,
+						    ufid_flags);
+			if (cur < req) {
+				struct sk_buff *resized;
+
+				resized = ovs_flow_cmd_alloc_info(acts,
+								  &flow->id,
+								  info, false,
+								  ufid_flags);
+				if (IS_ERR(resized)) {
+					error = PTR_ERR(resized);
+					goto err_unlock_ovs;
+				}
+				kfree_skb(reply);
+				reply = resized;
+			}
+		}
+
 		/* Update actions. */
 		old_acts = ovsl_dereference(flow->sf_acts);
 		rcu_assign_pointer(flow->sf_acts, acts);
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index b80bd3a9077397..52e261ce91e8e9 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -893,8 +893,6 @@ static int key_extract_l3l4(struct sk_buff *skb, struct sw_flow_key *key)
  * Ethernet header
  * @key: output flow key
  *
- * The caller must ensure that skb->len >= ETH_HLEN.
- *
  * Initializes @skb header fields as follows:
  *
  *    - skb->mac_header: the L2 header.
@@ -914,8 +912,6 @@ static int key_extract_l3l4(struct sk_buff *skb, struct sw_flow_key *key)
  */
 static int key_extract(struct sk_buff *skb, struct sw_flow_key *key)
 {
-	struct ethhdr *eth;
-
 	/* Flags are always used as part of stats */
 	key->tp.flags = 0;
 
@@ -930,6 +926,13 @@ static int key_extract(struct sk_buff *skb, struct sw_flow_key *key)
 		skb_reset_network_header(skb);
 		key->eth.type = skb->protocol;
 	} else {
+		struct ethhdr *eth;
+		int err;
+
+		err = check_header(skb, ETH_HLEN);
+		if (unlikely(err))
+			return err;
+
 		eth = eth_hdr(skb);
 		ether_addr_copy(key->eth.src, eth->h_source);
 		ether_addr_copy(key->eth.dst, eth->h_dest);
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index d435a48bc0e3b7..493a167a7c85b0 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1367,13 +1367,25 @@ static int packet_rcv_has_room(struct packet_sock *po, struct sk_buff *skb)
 	return ret;
 }
 
-static void packet_rcv_try_clear_pressure(struct packet_sock *po)
+static void __packet_rcv_try_clear_pressure(struct packet_sock *po)
 {
 	if (packet_sock_flag(po, PACKET_SOCK_PRESSURE) &&
 	    __packet_rcv_has_room(po, NULL) == ROOM_NORMAL)
 		packet_sock_flag_set(po, PACKET_SOCK_PRESSURE, false);
 }
 
+static void packet_rcv_try_clear_pressure(struct packet_sock *po)
+{
+	struct sock *sk = &po->sk;
+
+	if (!packet_sock_flag(po, PACKET_SOCK_PRESSURE))
+		return;
+
+	spin_lock_bh(&sk->sk_receive_queue.lock);
+	__packet_rcv_try_clear_pressure(po);
+	spin_unlock_bh(&sk->sk_receive_queue.lock);
+}
+
 static void packet_sock_destruct(struct sock *sk)
 {
 	skb_queue_purge(&sk->sk_error_queue);
@@ -1976,11 +1988,12 @@ static void packet_parse_headers(struct sk_buff *skb, struct socket *sock)
 {
 	int depth;
 
+	/* On TX skb->data is the L2 header; anchor it for all socket types. */
+	skb_reset_mac_header(skb);
+
 	if ((!skb->protocol || skb->protocol == htons(ETH_P_ALL)) &&
-	    sock->type == SOCK_RAW) {
-		skb_reset_mac_header(skb);
+	    sock->type == SOCK_RAW)
 		skb->protocol = dev_parse_header_protocol(skb);
-	}
 
 	/* Move network header to the right position for VLAN tagged packets */
 	if (likely(skb->dev->type == ARPHRD_ETHER) &&
@@ -2005,8 +2018,9 @@ static int packet_sendmsg_spkt(struct socket *sock, struct msghdr *msg,
 	struct net_device *dev;
 	struct sockcm_cookie sockc;
 	__be16 proto = 0;
-	int err;
+	int hard_header_len;
 	int extra_len = 0;
+	int err;
 
 	/*
 	 *	Get and verify the address.
@@ -2049,14 +2063,18 @@ retry:
 		extra_len = 4; /* We're doing our own CRC */
 	}
 
+	/* Keep the allocation-time header length across retry. */
+	if (!skb)
+		hard_header_len = READ_ONCE(dev->hard_header_len);
+
 	err = -EMSGSIZE;
-	if (len > dev->mtu + dev->hard_header_len + VLAN_HLEN + extra_len)
+	if (len > dev->mtu + hard_header_len + VLAN_HLEN + extra_len)
 		goto out_unlock;
 
 	if (!skb) {
-		size_t reserved = LL_RESERVED_SPACE(dev);
+		size_t reserved = LL_RESERVED_SPACE_EX(dev, hard_header_len);
 		int tlen = dev->needed_tailroom;
-		unsigned int hhlen = dev->header_ops ? dev->hard_header_len : 0;
+		unsigned int hhlen = dev->header_ops ? hard_header_len : 0;
 
 		rcu_read_unlock();
 		skb = sock_wmalloc(sk, len + reserved + tlen, 0, GFP_KERNEL);
@@ -2086,7 +2104,7 @@ retry:
 		err = -EINVAL;
 		goto out_unlock;
 	}
-	if (len > (dev->mtu + dev->hard_header_len + extra_len) &&
+	if (len > (dev->mtu + hard_header_len + extra_len) &&
 	    !packet_extra_vlan_len_allowed(dev, skb)) {
 		err = -EMSGSIZE;
 		goto out_unlock;
@@ -2628,6 +2646,7 @@ static int packet_snd_vnet_parse(struct msghdr *msg, size_t *len,
 static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
 		void *frame, struct net_device *dev, void *data, int tp_len,
 		__be16 proto, unsigned char *addr, int hlen, int copylen,
+		int hard_header_len,
 		const struct sockcm_cookie *sockc)
 {
 	union tpacket_uhdr ph;
@@ -2659,8 +2678,8 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
 	} else if (copylen) {
 		int hdrlen = min_t(int, copylen, tp_len);
 
-		skb_push(skb, dev->hard_header_len);
-		skb_put(skb, copylen - dev->hard_header_len);
+		skb_push(skb, hard_header_len);
+		skb_put(skb, copylen - hard_header_len);
 		err = skb_store_bits(skb, 0, data, hdrlen);
 		if (unlikely(err))
 			return err;
@@ -2791,7 +2810,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 	void *data;
 	int len_sum = 0;
 	int status = TP_STATUS_AVAILABLE;
-	int hlen, tlen, copylen = 0;
+	int hard_header_len, hlen, tlen, copylen = 0;
 	long timeo;
 
 	mutex_lock(&po->pg_vec_lock);
@@ -2838,8 +2857,9 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 			goto out_put;
 	}
 
+	hard_header_len = READ_ONCE(dev->hard_header_len);
 	if (po->sk.sk_socket->type == SOCK_RAW)
-		reserve = dev->hard_header_len;
+		reserve = hard_header_len;
 	size_max = po->tx_ring.frame_size
 		- (po->tp_hdrlen - sizeof(struct sockaddr_ll));
 
@@ -2876,7 +2896,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 			goto tpacket_error;
 
 		status = TP_STATUS_SEND_REQUEST;
-		hlen = LL_RESERVED_SPACE(dev);
+		hlen = LL_RESERVED_SPACE_EX(dev, hard_header_len);
 		tlen = dev->needed_tailroom;
 		if (vnet_hdr_sz) {
 			data += vnet_hdr_sz;
@@ -2894,10 +2914,10 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 						    vnet_hdr.hdr_len);
 			has_vnet_hdr = true;
 		}
-		copylen = max_t(int, copylen, dev->hard_header_len);
+		copylen = max_t(int, copylen, hard_header_len);
 		skb = sock_alloc_send_skb(&po->sk,
 				hlen + tlen + sizeof(struct sockaddr_ll) +
-				(copylen - dev->hard_header_len),
+				(copylen - hard_header_len),
 				!need_wait, &err);
 
 		if (unlikely(skb == NULL)) {
@@ -2907,7 +2927,8 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 			goto out_status;
 		}
 		tp_len = tpacket_fill_skb(po, skb, ph, dev, data, tp_len, proto,
-					  addr, hlen, copylen, &sockc);
+					  addr, hlen, copylen, hard_header_len,
+					  &sockc);
 		if (likely(tp_len >= 0) &&
 		    tp_len > dev->mtu + reserve &&
 		    !vnet_hdr_sz &&
@@ -3015,7 +3036,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 	int offset = 0;
 	struct packet_sock *po = pkt_sk(sk);
 	int vnet_hdr_sz = READ_ONCE(po->vnet_hdr_sz);
-	int hlen, tlen, linear;
+	int hard_header_len, hlen, tlen, linear;
 	int extra_len = 0;
 
 	/*
@@ -3056,8 +3077,9 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 			goto out_unlock;
 	}
 
+	hard_header_len = READ_ONCE(dev->hard_header_len);
 	if (sock->type == SOCK_RAW)
-		reserve = dev->hard_header_len;
+		reserve = hard_header_len;
 	if (vnet_hdr_sz) {
 		err = packet_snd_vnet_parse(msg, &len, &vnet_hdr, vnet_hdr_sz);
 		if (err)
@@ -3078,10 +3100,10 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 		goto out_unlock;
 
 	err = -ENOBUFS;
-	hlen = LL_RESERVED_SPACE(dev);
+	hlen = LL_RESERVED_SPACE_EX(dev, hard_header_len);
 	tlen = dev->needed_tailroom;
 	linear = __virtio16_to_cpu(vio_le(), vnet_hdr.hdr_len);
-	linear = max(linear, min_t(int, len, dev->hard_header_len));
+	linear = max(linear, min_t(int, len, hard_header_len));
 	skb = packet_alloc_skb(sk, hlen + tlen, hlen, len, linear,
 			       msg->msg_flags & MSG_DONTWAIT, &err);
 	if (skb == NULL)
@@ -3097,7 +3119,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 	} else if (reserve) {
 		skb_reserve(skb, -reserve);
 		if (len < reserve + sizeof(struct ipv6hdr) &&
-		    dev->min_header_len != dev->hard_header_len)
+		    dev->min_header_len != hard_header_len)
 			skb_reset_network_header(skb);
 	}
 
@@ -4351,7 +4373,7 @@ static __poll_t packet_poll(struct file *file, struct socket *sock,
 			TP_STATUS_KERNEL))
 			mask |= EPOLLIN | EPOLLRDNORM;
 	}
-	packet_rcv_try_clear_pressure(po);
+	__packet_rcv_try_clear_pressure(po);
 	spin_unlock_bh(&sk->sk_receive_queue.lock);
 	spin_lock_bh(&sk->sk_write_queue.lock);
 	if (po->tx_ring.pg_vec) {
@@ -4591,14 +4613,14 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
 		rb->frame_max = (req->tp_frame_nr - 1);
 		rb->head = 0;
 		rb->frame_size = req->tp_frame_size;
+		po->prot_hook.func = (po->rx_ring.pg_vec) ?
+						tpacket_rcv : packet_rcv;
 		spin_unlock_bh(&rb_queue->lock);
 
 		swap(rb->pg_vec_order, order);
 		swap(rb->pg_vec_len, req->tp_block_nr);
 
 		rb->pg_vec_pages = req->tp_block_size/PAGE_SIZE;
-		po->prot_hook.func = (po->rx_ring.pg_vec) ?
-						tpacket_rcv : packet_rcv;
 		skb_queue_purge(rb_queue);
 		if (atomic_long_read(&po->mapped))
 			pr_err("packet_mmap: vma is busy: %ld\n",
diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index 287e2559341283..7a0dff24c5d157 100644
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -841,8 +841,15 @@ static int tcf_ct_ipv6_is_fragment(struct sk_buff *skb, bool *frag)
 	return 0;
 }
 
+/* On error, tells the caller whether it still owns @skb and must free it
+ * itself.  @skb is ours only when the header checks below reject the packet
+ * before it is handed to the defragmentation engine; once nf_ct_handle_
+ * fragments() has been called the skb is either queued (-EINPROGRESS) or has
+ * already been freed by it.
+ */
 static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb,
-				   u8 family, u16 zone, bool *defrag)
+				   u8 family, u16 zone, bool *defrag,
+				   bool *skb_is_ours)
 {
 	enum ip_conntrack_info ctinfo;
 	struct tc_skb_cb cb;
@@ -860,8 +867,12 @@ static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb,
 		err = tcf_ct_ipv4_is_fragment(skb, &frag);
 	else
 		err = tcf_ct_ipv6_is_fragment(skb, &frag);
-	if (err || !frag)
+	if (err) {
+		*skb_is_ours = true;
 		return err;
+	}
+	if (!frag)
+		return 0;
 
 	cb = *tc_skb_cb(skb);
 	err = nf_ct_handle_fragments(net, skb, zone, family, &proto, &cb.mru);
@@ -971,6 +982,7 @@ TC_INDIRECT_SCOPE int tcf_ct_act(struct sk_buff *skb, const struct tc_action *a,
 	int nh_ofs, err, retval;
 	struct tcf_ct_params *p;
 	bool add_helper = false;
+	bool skb_is_ours = false;
 	bool skip_add = false;
 	bool defrag = false;
 	struct nf_conn *ct;
@@ -1006,9 +1018,18 @@ TC_INDIRECT_SCOPE int tcf_ct_act(struct sk_buff *skb, const struct tc_action *a,
 	 */
 	nh_ofs = skb_network_offset(skb);
 	skb_pull_rcsum(skb, nh_ofs);
-	err = tcf_ct_handle_fragments(net, skb, family, p->zone, &defrag);
-	if (err)
+	err = tcf_ct_handle_fragments(net, skb, family, p->zone, &defrag,
+				      &skb_is_ours);
+	if (err) {
+		/* The skb is still ours only when the header checks rejected
+		 * it; returning TC_ACT_CONSUMED for such a packet would leak
+		 * it, since no caller frees an skb it was told it no longer
+		 * owns.
+		 */
+		if (skb_is_ours)
+			goto drop;
 		goto out_frag;
+	}
 
 	err = nf_ct_skb_network_trim(skb, family);
 	if (err)
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index 904ab3d457ef8b..13de33761e06db 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -89,6 +89,11 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
 		p_parm = nla_data(tb[TCA_GACT_PROB]);
 		if (p_parm->ptype >= MAX_RAND)
 			return -EINVAL;
+		if (!tcf_action_valid(p_parm->paction)) {
+			NL_SET_ERR_MSG(extack,
+				       "invalid fallback control action");
+			return -EINVAL;
+		}
 		if (TC_ACT_EXT_CMP(p_parm->paction, TC_ACT_GOTO_CHAIN)) {
 			NL_SET_ERR_MSG(extack,
 				       "goto chain not allowed on fallback");
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index f3121c5a85e9f7..7fc57d7fe66d52 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -128,6 +128,12 @@ static int tcf_police_init(struct net *net, struct nlattr *nla,
 
 	if (tb[TCA_POLICE_RESULT]) {
 		tcfp_result = nla_get_u32(tb[TCA_POLICE_RESULT]);
+		if (!tcf_action_valid(tcfp_result)) {
+			NL_SET_ERR_MSG(extack,
+				       "invalid fallback control action");
+			err = -EINVAL;
+			goto failure;
+		}
 		if (TC_ACT_EXT_CMP(tcfp_result, TC_ACT_GOTO_CHAIN)) {
 			NL_SET_ERR_MSG(extack,
 				       "goto chain not allowed on fallback");
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index e259ec6ed145de..ff6af03cb855d7 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -390,6 +390,7 @@ static struct tcf_proto *tcf_proto_create(const char *kind, u32 protocol,
 	tp->protocol = protocol;
 	tp->prio = prio;
 	tp->chain = chain;
+	tp->usesw = !tp->ops->reoffload;
 	spin_lock_init(&tp->lock);
 	refcount_set(&tp->refcnt, 1);
 
@@ -410,12 +411,55 @@ static void tcf_proto_get(struct tcf_proto *tp)
 	refcount_inc(&tp->refcnt);
 }
 
+static void tcf_proto_count_usesw(struct tcf_proto *tp, bool add)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	struct tcf_block *block = tp->chain->block;
+	bool counted = false;
+
+	if (!add) {
+		if (tp->usesw && tp->counted) {
+			if (!atomic_dec_return(&block->useswcnt))
+				static_branch_dec(&tcf_sw_enabled_key);
+			tp->counted = false;
+		}
+		return;
+	}
+
+	spin_lock(&tp->lock);
+	if (tp->usesw && !tp->counted) {
+		counted = true;
+		tp->counted = true;
+	}
+	spin_unlock(&tp->lock);
+
+	if (counted && atomic_inc_return(&block->useswcnt) == 1)
+		static_branch_inc(&tcf_sw_enabled_key);
+#endif
+}
+
 static void tcf_chain_put(struct tcf_chain *chain);
 
 static void tcf_proto_destroy(struct tcf_proto *tp, bool rtnl_held,
 			      bool sig_destroy, struct netlink_ext_ack *extack)
 {
-	tp->ops->destroy(tp, rtnl_held, extack);
+	/* A locked classifier's destroy callback (e.g. u32_destroy) uses
+	 * rtnl_dereference() and mutates shared structures (e.g. the
+	 * tc_u_common hash list) that are only safe under rtnl_lock. When an
+	 * unlocked classifier's request (e.g. flower on ingress) loses the
+	 * tcf_chain_tp_insert_unique() race and ends up dropping the last
+	 * reference on a locked classifier's proto, destroy() would run
+	 * without rtnl held. Take it here in that case.
+	 */
+	bool not_lockless = !rtnl_held &&
+		!(tp->ops->flags & TCF_PROTO_OPS_DOIT_UNLOCKED);
+
+	if (not_lockless)
+		rtnl_lock();
+	tp->ops->destroy(tp, rtnl_held || not_lockless, extack);
+	if (not_lockless)
+		rtnl_unlock();
+	tcf_proto_count_usesw(tp, false);
 	if (sig_destroy)
 		tcf_proto_signal_destroyed(tp->chain, tp);
 	tcf_chain_put(tp->chain);
@@ -2357,6 +2401,7 @@ replay:
 		tfilter_notify(net, skb, n, tp, block, q, parent, fh,
 			       RTM_NEWTFILTER, false, rtnl_held, extack);
 		tfilter_put(tp, fh);
+		tcf_proto_count_usesw(tp, true);
 		/* q pointer is NULL for shared blocks */
 		if (q)
 			q->flags &= ~TCQ_F_CAN_BYPASS;
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index d5a5dffcd6f9b5..cede21257d27ca 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -509,6 +509,8 @@ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
 	if (!tc_in_hw(prog->gen_flags))
 		prog->gen_flags |= TCA_CLS_FLAGS_NOT_IN_HW;
 
+	tcf_proto_update_usesw(tp, prog->gen_flags);
+
 	if (oldprog) {
 		idr_replace(&head->handle_idr, prog, handle);
 		list_replace_rcu(&oldprog->link, &prog->link);
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index b00e491e8130d7..4fc59af6696ea7 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -2374,6 +2374,8 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
 	if (!tc_in_hw(fnew->flags))
 		fnew->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
 
+	tcf_proto_update_usesw(tp, fnew->flags);
+
 	spin_lock(&tp->lock);
 
 	/* tp was deleted concurrently. -EAGAIN will cause caller to lookup
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index c4ed11df62548c..e8353b27c8c4da 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -228,6 +228,8 @@ static int mall_change(struct net *net, struct sk_buff *in_skb,
 	if (!tc_in_hw(new->flags))
 		new->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
 
+	tcf_proto_update_usesw(tp, new->flags);
+
 	*arg = head;
 	rcu_assign_pointer(tp->root, new);
 	return 0;
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index 1e20bbd687f1df..fd72ab9d19eac0 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -52,6 +52,7 @@ struct route4_filter {
 	struct tcf_result	res;
 	struct tcf_exts		exts;
 	u32			handle;
+	bool			dying;
 	struct route4_bucket	*bkt;
 	struct tcf_proto	*tp;
 	struct rcu_work		rwork;
@@ -66,9 +67,11 @@ static inline int route4_fastmap_hash(u32 id, int iif)
 
 static DEFINE_SPINLOCK(fastmap_lock);
 static void
-route4_reset_fastmap(struct route4_head *head)
+route4_reset_fastmap(struct route4_head *head, struct route4_filter *f)
 {
 	spin_lock_bh(&fastmap_lock);
+	if (f)
+		f->dying = true;
 	memset(head->fastmap, 0, sizeof(head->fastmap));
 	spin_unlock_bh(&fastmap_lock);
 }
@@ -81,9 +84,11 @@ route4_set_fastmap(struct route4_head *head, u32 id, int iif,
 
 	/* fastmap updates must look atomic to aling id, iff, filter */
 	spin_lock_bh(&fastmap_lock);
-	head->fastmap[h].id = id;
-	head->fastmap[h].iif = iif;
-	head->fastmap[h].filter = f;
+	if (f == ROUTE4_FAILURE || !f->dying) {
+		head->fastmap[h].id = id;
+		head->fastmap[h].iif = iif;
+		head->fastmap[h].filter = f;
+	}
 	spin_unlock_bh(&fastmap_lock);
 }
 
@@ -297,6 +302,13 @@ static void route4_destroy(struct tcf_proto *tp, bool rtnl_held,
 					next = rtnl_dereference(f->next);
 					RCU_INIT_POINTER(b->ht[h2], next);
 					tcf_unbind_filter(tp, &f->res);
+					/* Mark the filter dying under fastmap_lock so
+					 * any in-flight reader that still holds it
+					 * will skip the republish in route4_set_fastmap().
+					 */
+					spin_lock_bh(&fastmap_lock);
+					f->dying = true;
+					spin_unlock_bh(&fastmap_lock);
 					if (tcf_exts_get_net(&f->exts))
 						route4_queue_work(f);
 					else
@@ -307,6 +319,11 @@ static void route4_destroy(struct tcf_proto *tp, bool rtnl_held,
 			kfree_rcu(b, rcu);
 		}
 	}
+
+	/* All filters are unlinked and marked dying, so no in-flight
+	 * reader can republish a stale entry after this reset.
+	 */
+	route4_reset_fastmap(head, NULL);
 	kfree_rcu(head, rcu);
 }
 
@@ -334,11 +351,11 @@ static int route4_delete(struct tcf_proto *tp, void *arg, bool *last,
 			/* unlink it */
 			RCU_INIT_POINTER(*fp, rtnl_dereference(f->next));
 
-			/* Remove any fastmap lookups that might ref filter
-			 * notice we unlink'd the filter so we can't get it
-			 * back in the fastmap.
+			/* Clear any fastmap entries that may ref this filter and
+			 * mark it dying so in-flight readers can't republish it
+			 * after the reset.
 			 */
-			route4_reset_fastmap(head);
+			route4_reset_fastmap(head, f);
 
 			/* Delete it */
 			tcf_unbind_filter(tp, &f->res);
@@ -553,7 +570,7 @@ static int route4_change(struct net *net, struct sk_buff *in_skb,
 		}
 	}
 
-	route4_reset_fastmap(head);
+	route4_reset_fastmap(head, fold);
 	*arg = f;
 	if (fold) {
 		tcf_unbind_filter(tp, &fold->res);
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 1338d9b4c03a44..9829df127d054f 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -950,6 +950,8 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
 		if (!tc_in_hw(new->flags))
 			new->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
 
+		tcf_proto_update_usesw(tp, new->flags);
+
 		u32_replace_knode(tp, tp_c, new);
 		tcf_unbind_filter(tp, &n->res);
 		tcf_exts_get_net(&n->exts);
@@ -1163,6 +1165,8 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
 		if (!tc_in_hw(n->flags))
 			n->flags |= TCA_CLS_FLAGS_NOT_IN_HW;
 
+		tcf_proto_update_usesw(tp, n->flags);
+
 		ins = &ht->ht[TC_U32_HASH(handle)];
 		for (pins = rtnl_dereference(*ins); pins;
 		     ins = &pins->next, pins = rtnl_dereference(*ins))
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index b20dc987b907fc..2047b9c1ae3f7a 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -1066,6 +1066,9 @@ static int qdisc_graft(struct net_device *dev, struct Qdisc *parent,
 		unsigned int i, num_q, ingress;
 		struct netdev_queue *dev_queue;
 
+		if (new)
+			new->depth = 0;
+
 		ingress = 0;
 		num_q = dev->num_tx_queues;
 		if ((q && q->flags & TCQ_F_INGRESS) ||
@@ -1163,9 +1166,15 @@ skip:
 			NL_SET_ERR_MSG(extack, "STAB not supported on a non root");
 			return -EINVAL;
 		}
+		if (new && parent->depth >= 7) {
+			NL_SET_ERR_MSG(extack, "Qdisc hierarchy is too deep");
+			return -E2BIG;
+		}
 		err = cops->graft(parent, cl, new, &old, extack);
 		if (err)
 			return err;
+		if (new)
+			new->depth = parent->depth + 1;
 		notify_and_destroy(net, skb, n, classid, old, new, extack);
 	}
 	return 0;
diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index ce9ee43e9ee2bc..4331097f813ecd 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -1282,7 +1282,6 @@ static struct sk_buff *cake_ack_filter(struct cake_sched_data *q,
 
 			seglen = ntohs(ipv6h_check->payload_len);
 		} else {
-			WARN_ON(1);  /* shouldn't happen */
 			continue;
 		}
 
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 44f06c5f1f2560..f409b9f6b228f5 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -543,6 +543,9 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
 	    asoc->addip_last_asconf->transport == peer)
 		asoc->addip_last_asconf->transport = NULL;
 
+	if (asoc->new_transport == peer)
+		asoc->new_transport = NULL;
+
 	/* If we have something on the transmitted list, we have to
 	 * save it off.  The best place is the active path.
 	 */
@@ -573,6 +576,10 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
 		if (ch->transport == peer)
 			ch->transport = NULL;
 
+	list_for_each_entry(ch, &asoc->outqueue.control_chunk_list, list)
+		if (ch->transport == peer)
+			ch->transport = NULL;
+
 	asoc->peer.transport_count--;
 
 	sctp_ulpevent_notify_peer_addr_change(peer, SCTP_ADDR_REMOVED, 0);
@@ -1727,6 +1734,8 @@ void sctp_asconf_queue_teardown(struct sctp_association *asoc)
 	sctp_assoc_free_asconf_queue(asoc);
 
 	/* Free any cached ASCONF chunk. */
-	if (asoc->addip_last_asconf)
+	if (asoc->addip_last_asconf) {
 		sctp_chunk_free(asoc->addip_last_asconf);
+		asoc->addip_last_asconf = NULL;
+	}
 }
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 0dc6b8ab996317..242282a2642521 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -650,6 +650,7 @@ static int __sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt,
 		if (chunk->tsn_gap_acked) {
 			list_move_tail(&chunk->transmitted_list,
 				       &transport->transmitted);
+			chunk->transport = transport;
 			continue;
 		}
 
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index 0f03560fcab440..1a614560223ef5 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -3354,12 +3354,11 @@ struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc,
 			goto done;
 	}
 done:
-	asoc->peer.addip_serial++;
-
 	/* If we are sending a new ASCONF_ACK hold a reference to it in assoc
 	 * after freeing the reference to old asconf ack if any.
 	 */
 	if (asconf_ack) {
+		asoc->peer.addip_serial++;
 		sctp_chunk_hold(asconf_ack);
 		list_add_tail(&asconf_ack->transmitted_list,
 			      &asoc->asconf_ack_list);
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index ce0b5d6b4c5239..0a44a581900a0a 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -6109,8 +6109,12 @@ enum sctp_disposition sctp_sf_t4_timer_expire(
 					struct sctp_cmd_seq *commands)
 {
 	struct sctp_chunk *chunk = asoc->addip_last_asconf;
-	struct sctp_transport *transport = chunk->transport;
+	struct sctp_transport *transport;
+
+	if (!chunk)
+		return SCTP_DISPOSITION_CONSUME;
 
+	transport = chunk->transport;
 	SCTP_INC_STATS(net, SCTP_MIB_T4_RTO_EXPIREDS);
 
 	/* ADDIP 4.1 B1) Increment the error counters and perform path failure
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index e5e07160e57190..087102ff3c640b 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1921,11 +1921,12 @@ static void smc_listen_out(struct smc_sock *new_smc)
 		atomic_dec(&lsmc->queued_smc_hs);
 
 	release_sock(newsmcsk); /* lock in smc_listen_work() */
+	lock_sock_nested(&lsmc->sk, SINGLE_DEPTH_NESTING);
 	if (lsmc->sk.sk_state == SMC_LISTEN) {
-		lock_sock_nested(&lsmc->sk, SINGLE_DEPTH_NESTING);
 		smc_accept_enqueue(&lsmc->sk, newsmcsk);
 		release_sock(&lsmc->sk);
 	} else { /* no longer listening */
+		release_sock(&lsmc->sk);
 		smc_close_non_accepted(newsmcsk);
 	}
 
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index 018ce8133b0265..149d63cff667ee 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -1918,7 +1918,8 @@ static void smc_llc_event_handler(struct smc_llc_qentry *qentry)
 		return;
 	case SMC_LLC_CONFIRM_LINK:
 	case SMC_LLC_ADD_LINK_CONT:
-		if (lgr->llc_flow_lcl.type != SMC_LLC_FLOW_NONE) {
+		if (lgr->llc_flow_lcl.type != SMC_LLC_FLOW_NONE &&
+		    !lgr->llc_flow_lcl.qentry) {
 			/* a flow is waiting for this message */
 			smc_llc_flow_qentry_set(&lgr->llc_flow_lcl, qentry);
 			wake_up(&lgr->llc_msg_waiter);
diff --git a/net/smc/smc_rx.c b/net/smc/smc_rx.c
index a48f8c93f4b63f..05229a0a07e426 100644
--- a/net/smc/smc_rx.c
+++ b/net/smc/smc_rx.c
@@ -150,7 +150,12 @@ static const struct pipe_buf_operations smc_pipe_ops = {
 static void smc_rx_spd_release(struct splice_pipe_desc *spd,
 			       unsigned int i)
 {
+	struct smc_spd_priv *priv = (struct smc_spd_priv *)spd->partial[i].private;
+	struct sock *sk = &priv->smc->sk;
+
+	kfree(priv);
 	put_page(spd->pages[i]);
+	sock_put(sk);
 }
 
 static int smc_rx_splice(struct pipe_inode_info *pipe, char *src, size_t len,
@@ -209,6 +214,10 @@ static int smc_rx_splice(struct pipe_inode_info *pipe, char *src, size_t len,
 			offset = 0;
 		}
 	}
+	for (i = 0; i < nr_pages; i++) {
+		get_page(pages[i]);
+		sock_hold(&smc->sk);
+	}
 	spd.nr_pages_max = nr_pages;
 	spd.nr_pages = nr_pages;
 	spd.pages = pages;
@@ -217,16 +226,8 @@ static int smc_rx_splice(struct pipe_inode_info *pipe, char *src, size_t len,
 	spd.spd_release = smc_rx_spd_release;
 
 	bytes = splice_to_pipe(pipe, &spd);
-	if (bytes > 0) {
-		sock_hold(&smc->sk);
-		if (!lgr->is_smcd && smc->conn.rmb_desc->is_vm) {
-			for (i = 0; i < PAGE_ALIGN(bytes + offset) / PAGE_SIZE; i++)
-				get_page(pages[i]);
-		} else {
-			get_page(smc->conn.rmb_desc->pages);
-		}
+	if (bytes > 0)
 		atomic_add(bytes, &smc->conn.splice_pending);
-	}
 	kfree(priv);
 	kfree(partial);
 	kfree(pages);
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 97b5ce4c678f8e..f4a25ae7dc1b39 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -1063,18 +1063,23 @@ static void __tipc_node_link_down(struct tipc_node *n, int *bearer_id,
 
 static void tipc_node_link_down(struct tipc_node *n, int bearer_id, bool delete)
 {
-	struct tipc_link_entry *le = &n->links[bearer_id];
 	struct tipc_media_addr *maddr = NULL;
-	struct tipc_link *l = le->link;
 	int old_bearer_id = bearer_id;
+	struct tipc_link_entry *le;
 	struct sk_buff_head xmitq;
-
-	if (!l)
-		return;
+	struct tipc_link *l;
 
 	__skb_queue_head_init(&xmitq);
 
+	/* Synchronize the link lookup with bearer teardown. */
 	tipc_node_write_lock(n);
+	le = &n->links[bearer_id];
+	l = le->link;
+	if (!l) {
+		tipc_node_write_unlock_fast(n);
+		return;
+	}
+
 	if (!tipc_link_is_establishing(l)) {
 		__tipc_node_link_down(n, &bearer_id, &xmitq, &maddr);
 	} else {
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 39021fab3c5965..ac168ccd1fcb3a 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -458,7 +458,7 @@ int tls_tx_records(struct sock *sk, int flags)
 	}
 
 tx_err:
-	if (rc < 0 && rc != -EAGAIN)
+	if (rc < 0 && rc != -EAGAIN && rc != -EINTR && rc != -ERESTARTSYS)
 		tls_err_abort(sk, rc);
 
 	return rc;
@@ -1116,6 +1116,14 @@ static int tls_sw_sendmsg_locked(struct sock *sk, struct msghdr *msg,
 		if (!sk_stream_memory_free(sk))
 			goto wait_for_sndbuf;
 
+		/* open record may be full if we couldn't push it in the last sendmsg call */
+		if (sk_msg_full(msg_pl)) {
+			full_record = true;
+			sk_msg_trim(sk, msg_en,
+				    msg_pl->sg.size + prot->overhead_size);
+			goto copied;
+		}
+
 alloc_encrypted:
 		ret = tls_alloc_encrypted_msg(sk, required_size);
 		if (ret) {
@@ -1216,6 +1224,12 @@ fallback_to_reg_send:
 						       msg_pl, try_to_copy);
 			if (ret < 0)
 				goto trim_sgl;
+
+			if (sk_msg_full(msg_pl)) {
+				full_record = true;
+				sk_msg_trim(sk, msg_en,
+					    msg_pl->sg.size + prot->overhead_size);
+			}
 		}
 
 		/* Open records defined only if successfully copied, otherwise
diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
index e1d7ce8dac082e..70db737c52daf9 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -257,12 +257,13 @@ static void virtio_transport_tx_work(struct work_struct *work)
 	struct virtqueue *vq;
 	bool added = false;
 
-	vq = vsock->vqs[VSOCK_VQ_TX];
 	mutex_lock(&vsock->tx_lock);
 
 	if (!vsock->tx_run)
 		goto out;
 
+	vq = vsock->vqs[VSOCK_VQ_TX];
+
 	do {
 		struct sk_buff *skb;
 		unsigned int len;
@@ -362,13 +363,13 @@ static void virtio_transport_event_work(struct work_struct *work)
 		container_of(work, struct virtio_vsock, event_work);
 	struct virtqueue *vq;
 
-	vq = vsock->vqs[VSOCK_VQ_EVENT];
-
 	mutex_lock(&vsock->event_lock);
 
 	if (!vsock->event_run)
 		goto out;
 
+	vq = vsock->vqs[VSOCK_VQ_EVENT];
+
 	do {
 		struct virtio_vsock_event *event;
 		unsigned int len;
@@ -487,12 +488,12 @@ static void virtio_transport_rx_work(struct work_struct *work)
 		container_of(work, struct virtio_vsock, rx_work);
 	struct virtqueue *vq;
 
-	vq = vsock->vqs[VSOCK_VQ_RX];
-
 	mutex_lock(&vsock->rx_lock);
 
 	if (!vsock->rx_run)
-		goto out;
+		goto out_nofill;
+
+	vq = vsock->vqs[VSOCK_VQ_RX];
 
 	do {
 		virtqueue_disable_cb(vq);
@@ -538,6 +539,7 @@ static void virtio_transport_rx_work(struct work_struct *work)
 out:
 	if (vsock->rx_buf_nr < vsock->rx_buf_max_nr / 2)
 		virtio_vsock_rx_fill(vsock);
+out_nofill:
 	mutex_unlock(&vsock->rx_lock);
 }
 
diff --git a/scripts/remove-stale-files b/scripts/remove-stale-files
index 8b1a636f854342..38eb84eb605b64 100755
--- a/scripts/remove-stale-files
+++ b/scripts/remove-stale-files
@@ -39,3 +39,5 @@ rm -rf include/ksym
 find . -name '*.usyms' | xargs rm -f
 
 rm -f binkernel.spec
+
+rm -f lib/test_fortify.log
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 0acf7d6baa37fb..919133dc8ef298 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -304,8 +304,13 @@ static int xattr_verify(enum ima_hooks func, struct integrity_iint_cache *iint,
 		} else {
 			set_bit(IMA_DIGSIG, &iint->atomic_flags);
 		}
-		if (xattr_len - sizeof(xattr_value->type) - hash_start >=
-				iint->ima_hash->length)
+		/*
+		 * Use addition, not subtraction: sizeof() forces unsigned
+		 * math and a short xattr_len would wrap around, bypassing
+		 * this bounds check.
+		 */
+		if (xattr_len >= (int)sizeof(xattr_value->type) + hash_start +
+				(int)iint->ima_hash->length)
 			/*
 			 * xattr length may be longer. md5 hash in previous
 			 * version occupied 20 bytes in xattr, instead of 16
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 59e3584b24a091..c393a9125b9b34 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -388,13 +388,15 @@ static int prepare_inbound_urb(struct snd_usb_endpoint *ep,
 	case SND_USB_ENDPOINT_TYPE_DATA:
 		offs = 0;
 		for (i = 0; i < urb_ctx->packets; i++) {
+			if (offs + ep->curpacksize > urb_ctx->buffer_size)
+				break;
 			urb->iso_frame_desc[i].offset = offs;
 			urb->iso_frame_desc[i].length = ep->curpacksize;
 			offs += ep->curpacksize;
 		}
 
 		urb->transfer_buffer_length = offs;
-		urb->number_of_packets = urb_ctx->packets;
+		urb->number_of_packets = i;
 		break;
 
 	case SND_USB_ENDPOINT_TYPE_SYNC:
@@ -1260,10 +1262,10 @@ static int data_ep_set_params(struct snd_usb_endpoint *ep)
 		u->index = i;
 		u->ep = ep;
 		u->packets = urb_packs;
-		u->buffer_size = maxsize * u->packets;
 
 		if (fmt->fmt_type == UAC_FORMAT_TYPE_II)
 			u->packets++; /* for transfer delimiter */
+		u->buffer_size = maxsize * u->packets;
 		u->urb = usb_alloc_urb(u->packets, GFP_KERNEL);
 		if (!u->urb)
 			goto out_of_memory;
diff --git a/sound/usb/midi2.c b/sound/usb/midi2.c
index f70e5ec66edb14..f8653958563ba5 100644
--- a/sound/usb/midi2.c
+++ b/sound/usb/midi2.c
@@ -695,6 +695,14 @@ static int parse_midi_2_0_endpoints(struct snd_usb_midi2_interface *umidi)
 	return 0;
 }
 
+static void free_ump_private_data(struct snd_ump_endpoint *ump)
+{
+	struct snd_usb_midi2_ump *rmidi = ump->private_data;
+
+	if (rmidi)
+		rmidi->ump = NULL;
+}
+
 static void free_all_midi2_umps(struct snd_usb_midi2_interface *umidi)
 {
 	struct snd_usb_midi2_ump *rmidi;
@@ -745,6 +753,7 @@ static int create_midi2_ump(struct snd_usb_midi2_interface *umidi,
 
 	ump->private_data = rmidi;
 	ump->ops = &snd_usb_midi_v2_ump_ops;
+	ump->private_free = free_ump_private_data;
 
 	rmidi->eps[STR_IN] = ep_in;
 	rmidi->eps[STR_OUT] = ep_out;
diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c
index 4937ede0b5d70b..34421b85838af3 100644
--- a/sound/usb/usx2y/usX2Yhwdep.c
+++ b/sound/usb/usx2y/usX2Yhwdep.c
@@ -29,6 +29,8 @@ static vm_fault_t snd_us428ctls_vm_fault(struct vm_fault *vmf)
 		   vmf->pgoff);
 
 	offset = vmf->pgoff << PAGE_SHIFT;
+	if (offset >= US428_SHAREDMEM_PAGES)
+		return VM_FAULT_SIGBUS;
 	vaddr = (char *)((struct usx2ydev *)vmf->vma->vm_private_data)->us428ctls_sharedmem + offset;
 	page = virt_to_page(vaddr);
 	get_page(page);
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c
index 36f2e31168fb0f..54290caa9fadc9 100644
--- a/sound/usb/usx2y/usx2yhwdeppcm.c
+++ b/sound/usb/usx2y/usx2yhwdeppcm.c
@@ -676,6 +676,8 @@ static vm_fault_t snd_usx2y_hwdep_pcm_vm_fault(struct vm_fault *vmf)
 	void *vaddr;
 
 	offset = vmf->pgoff << PAGE_SHIFT;
+	if (offset >= USX2Y_HWDEP_PCM_PAGES)
+		return VM_FAULT_SIGBUS;
 	vaddr = (char *)((struct usx2ydev *)vmf->vma->vm_private_data)->hwdep_pcm_shm + offset;
 	vmf->page = virt_to_page(vaddr);
 	get_page(vmf->page);
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c
index a6d8aa8c2a9ac9..6386d6069b9db2 100644
--- a/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_listen.c
@@ -51,8 +51,8 @@ static void test_insert_opened(struct test_sockmap_listen *skel __always_unused,
 			       int family, int sotype, int mapfd)
 {
 	u32 key = 0;
-	u64 value;
 	int err, s;
+	u64 value;
 
 	s = xsocket(family, sotype, 0);
 	if (s == -1)
@@ -61,11 +61,8 @@ static void test_insert_opened(struct test_sockmap_listen *skel __always_unused,
 	errno = 0;
 	value = s;
 	err = bpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
-	if (sotype == SOCK_STREAM) {
-		if (!err || errno != EOPNOTSUPP)
-			FAIL_ERRNO("map_update: expected EOPNOTSUPP");
-	} else if (err)
-		FAIL_ERRNO("map_update: expected success");
+	ASSERT_ERR(err, "map_update");
+	ASSERT_EQ(errno, EOPNOTSUPP, "errno");
 	xclose(s);
 }
 
@@ -75,8 +72,8 @@ static void test_insert_bound(struct test_sockmap_listen *skel __always_unused,
 	struct sockaddr_storage addr;
 	socklen_t len;
 	u32 key = 0;
-	u64 value;
 	int err, s;
+	u64 value;
 
 	init_addr_loopback(family, &addr, &len);
 
@@ -91,8 +88,12 @@ static void test_insert_bound(struct test_sockmap_listen *skel __always_unused,
 	errno = 0;
 	value = s;
 	err = bpf_map_update_elem(mapfd, &key, &value, BPF_NOEXIST);
-	if (!err || errno != EOPNOTSUPP)
-		FAIL_ERRNO("map_update: expected EOPNOTSUPP");
+	if (sotype == SOCK_STREAM) {
+		ASSERT_ERR(err, "map_update");
+		ASSERT_EQ(errno, EOPNOTSUPP, "errno");
+	} else {
+		ASSERT_OK(err, "map_update");
+	}
 close:
 	xclose(s);
 }
@@ -1261,7 +1262,7 @@ static void test_ops(struct test_sockmap_listen *skel, struct bpf_map *map,
 		/* insert */
 		TEST(test_insert_invalid),
 		TEST(test_insert_opened),
-		TEST(test_insert_bound, SOCK_STREAM),
+		TEST(test_insert_bound),
 		TEST(test_insert),
 		/* delete */
 		TEST(test_delete_after_insert),
diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c
index e0dd101c9f2bd4..f2a27143edc341 100644
--- a/tools/testing/selftests/bpf/test_maps.c
+++ b/tools/testing/selftests/bpf/test_maps.c
@@ -752,16 +752,15 @@ static void test_sockmap(unsigned int tasks, void *data)
 		goto out_sockmap;
 	}
 
-	/* Test update with unsupported UDP socket */
+	/* Test update with unsupported unbound UDP socket */
 	udp = socket(AF_INET, SOCK_DGRAM, 0);
-	i = 0;
-	err = bpf_map_update_elem(fd, &i, &udp, BPF_ANY);
-	if (err) {
-		printf("Failed socket update SOCK_DGRAM '%i:%i'\n",
-		       i, udp);
+	CHECK(udp < 0, "socket(AF_INET, SOCK_DGRAM)", "errno:%d\n", errno);
+	err = bpf_map_update_elem(fd, &(int){0}, &udp, BPF_ANY);
+	close(udp);
+	if (!err) {
+		printf("Unexpectedly succeeded unbound UDP update '0:%i'\n", udp);
 		goto out_sockmap;
 	}
-	close(udp);
 
 	/* Test update without programs */
 	for (i = 0; i < 6; i++) {
diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc
index c300eb0202620c..e2322693d0c320 100644
--- a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc
+++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc
@@ -1,16 +1,16 @@
 #!/bin/sh
 # SPDX-License-Identifier: GPL-2.0
 # description: Generic dynamic event - add/remove eprobe events
-# requires: dynamic_events events/syscalls/sys_enter_openat "<attached-group>.<attached-event> [<args>]":README
+# requires: dynamic_events events/syscalls/sys_enter_chdir "<attached-group>.<attached-event> [<args>]":README
 
 echo 0 > events/enable
 
 clear_dynamic_events
 
 SYSTEM="syscalls"
-EVENT="sys_enter_openat"
+EVENT="sys_enter_chdir"
 FIELD="filename"
-EPROBE="eprobe_open"
+EPROBE="eprobe_chdir"
 OPTIONS="file=+0(\$filename):ustring"
 echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events
 
@@ -18,20 +18,14 @@ grep -q "$EPROBE" dynamic_events
 test -d events/eprobes/$EPROBE
 
 echo 1 > events/eprobes/$EPROBE/enable
-ls
+cd /sys/kernel/tracing
 echo 0 > events/eprobes/$EPROBE/enable
 
-content=`grep '^ *ls-' trace | grep 'file='`
-nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."' -e '(fault)' ` || true
-
+content=`grep -e 'file="/sys/kernel/tracing"\|(fault)' trace`
 if [ -z "$content" ]; then
 	exit_fail
 fi
 
-if [ ! -z "$nocontent" ]; then
-	exit_fail
-fi
-
 echo "-:$EPROBE" >> dynamic_events
 
 ! grep -q "$EPROBE" dynamic_events
