Linux patch 4.9.264.9-27

2 files changed, 1772 insertions, 0 deletions

diff --git a/0000_README b/0000_README
index 6d83bcd6..64923fda 100644
--- a/0000_README
+++ b/0000_README
@@ -143,6 +143,10 @@ Patch:  1024_linux-4.9.25.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.9.25
 
+Patch:  1025_linux-4.9.26.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.9.26
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.
diff --git a/1025_linux-4.9.26.patch b/1025_linux-4.9.26.patch
new file mode 100644
index 00000000..0346b91b
--- /dev/null
+++ b/1025_linux-4.9.26.patch
@@ -0,0 +1,1768 @@
+diff --git a/Makefile b/Makefile
+index 8e18c63388c4..c09679c1a70d 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 25
++SUBLEVEL = 26
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+ 
+diff --git a/arch/arc/include/asm/atomic.h b/arch/arc/include/asm/atomic.h
+index b65930a49589..54b54da6384c 100644
+--- a/arch/arc/include/asm/atomic.h
++++ b/arch/arc/include/asm/atomic.h
+@@ -17,10 +17,11 @@
+ #include <asm/barrier.h>
+ #include <asm/smp.h>
+ 
++#define ATOMIC_INIT(i)	{ (i) }
++
+ #ifndef CONFIG_ARC_PLAT_EZNPS
+ 
+ #define atomic_read(v)  READ_ONCE((v)->counter)
+-#define ATOMIC_INIT(i)	{ (i) }
+ 
+ #ifdef CONFIG_ARC_HAS_LLSC
+ 
+diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h
+index b5ff87e6f4b7..aee1a77934cf 100644
+--- a/arch/arc/include/asm/entry-arcv2.h
++++ b/arch/arc/include/asm/entry-arcv2.h
+@@ -16,6 +16,7 @@
+ 	;
+ 	; Now manually save: r12, sp, fp, gp, r25
+ 
++	PUSH	r30
+ 	PUSH	r12
+ 
+ 	; Saving pt_regs->sp correctly requires some extra work due to the way
+@@ -72,6 +73,7 @@
+ 	POPAX	AUX_USER_SP
+ 1:
+ 	POP	r12
++	POP	r30
+ 
+ .endm
+ 
+diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h
+index 69095da1fcfd..47111d565a95 100644
+--- a/arch/arc/include/asm/ptrace.h
++++ b/arch/arc/include/asm/ptrace.h
+@@ -84,7 +84,7 @@ struct pt_regs {
+ 	unsigned long fp;
+ 	unsigned long sp;	/* user/kernel sp depending on where we came from  */
+ 
+-	unsigned long r12;
++	unsigned long r12, r30;
+ 
+ 	/*------- Below list auto saved by h/w -----------*/
+ 	unsigned long r0, r1, r2, r3, r4, r5, r6, r7, r8, r9, r10, r11;
+diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
+index 804d2a2a19fe..dd6a18bc10ab 100644
+--- a/arch/mips/kernel/cevt-r4k.c
++++ b/arch/mips/kernel/cevt-r4k.c
+@@ -80,7 +80,7 @@ static unsigned int calculate_min_delta(void)
+ 		}
+ 
+ 		/* Sorted insert of 75th percentile into buf2 */
+-		for (k = 0; k < i; ++k) {
++		for (k = 0; k < i && k < ARRAY_SIZE(buf2); ++k) {
+ 			if (buf1[ARRAY_SIZE(buf1) - 1] < buf2[k]) {
+ 				l = min_t(unsigned int,
+ 					  i, ARRAY_SIZE(buf2) - 1);
+diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c
+index 6430bff21fff..5c429d70e17f 100644
+--- a/arch/mips/kernel/elf.c
++++ b/arch/mips/kernel/elf.c
+@@ -257,7 +257,7 @@ int arch_check_elf(void *_ehdr, bool has_interpreter, void *_interp_ehdr,
+ 	else if ((prog_req.fr1 && prog_req.frdefault) ||
+ 		 (prog_req.single && !prog_req.frdefault))
+ 		/* Make sure 64-bit MIPS III/IV/64R1 will not pick FR1 */
+-		state->overall_fp_mode = ((current_cpu_data.fpu_id & MIPS_FPIR_F64) &&
++		state->overall_fp_mode = ((raw_current_cpu_data.fpu_id & MIPS_FPIR_F64) &&
+ 					  cpu_has_mips_r2_r6) ?
+ 					  FP_FR1 : FP_FR0;
+ 	else if (prog_req.fr1)
+diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c
+index de63d36af895..732d6171ac6a 100644
+--- a/arch/mips/kernel/kgdb.c
++++ b/arch/mips/kernel/kgdb.c
+@@ -244,9 +244,6 @@ static int compute_signal(int tt)
+ void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
+ {
+ 	int reg;
+-	struct thread_info *ti = task_thread_info(p);
+-	unsigned long ksp = (unsigned long)ti + THREAD_SIZE - 32;
+-	struct pt_regs *regs = (struct pt_regs *)ksp - 1;
+ #if (KGDB_GDB_REG_SIZE == 32)
+ 	u32 *ptr = (u32 *)gdb_regs;
+ #else
+@@ -254,25 +251,46 @@ void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
+ #endif
+ 
+ 	for (reg = 0; reg < 16; reg++)
+-		*(ptr++) = regs->regs[reg];
++		*(ptr++) = 0;
+ 
+ 	/* S0 - S7 */
+-	for (reg = 16; reg < 24; reg++)
+-		*(ptr++) = regs->regs[reg];
++	*(ptr++) = p->thread.reg16;
++	*(ptr++) = p->thread.reg17;
++	*(ptr++) = p->thread.reg18;
++	*(ptr++) = p->thread.reg19;
++	*(ptr++) = p->thread.reg20;
++	*(ptr++) = p->thread.reg21;
++	*(ptr++) = p->thread.reg22;
++	*(ptr++) = p->thread.reg23;
+ 
+ 	for (reg = 24; reg < 28; reg++)
+ 		*(ptr++) = 0;
+ 
+ 	/* GP, SP, FP, RA */
+-	for (reg = 28; reg < 32; reg++)
+-		*(ptr++) = regs->regs[reg];
+-
+-	*(ptr++) = regs->cp0_status;
+-	*(ptr++) = regs->lo;
+-	*(ptr++) = regs->hi;
+-	*(ptr++) = regs->cp0_badvaddr;
+-	*(ptr++) = regs->cp0_cause;
+-	*(ptr++) = regs->cp0_epc;
++	*(ptr++) = (long)p;
++	*(ptr++) = p->thread.reg29;
++	*(ptr++) = p->thread.reg30;
++	*(ptr++) = p->thread.reg31;
++
++	*(ptr++) = p->thread.cp0_status;
++
++	/* lo, hi */
++	*(ptr++) = 0;
++	*(ptr++) = 0;
++
++	/*
++	 * BadVAddr, Cause
++	 * Ideally these would come from the last exception frame up the stack
++	 * but that requires unwinding, otherwise we can't know much for sure.
++	 */
++	*(ptr++) = 0;
++	*(ptr++) = 0;
++
++	/*
++	 * PC
++	 * use return address (RA), i.e. the moment after return from resume()
++	 */
++	*(ptr++) = p->thread.reg31;
+ }
+ 
+ void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long pc)
+diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
+index 1fb317fbc0b3..b6802b978140 100644
+--- a/arch/sparc/include/asm/pgtable_64.h
++++ b/arch/sparc/include/asm/pgtable_64.h
+@@ -673,26 +673,27 @@ static inline unsigned long pmd_pfn(pmd_t pmd)
+ 	return pte_pfn(pte);
+ }
+ 
+-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+-static inline unsigned long pmd_dirty(pmd_t pmd)
++#define __HAVE_ARCH_PMD_WRITE
++static inline unsigned long pmd_write(pmd_t pmd)
+ {
+ 	pte_t pte = __pte(pmd_val(pmd));
+ 
+-	return pte_dirty(pte);
++	return pte_write(pte);
+ }
+ 
+-static inline unsigned long pmd_young(pmd_t pmd)
++#ifdef CONFIG_TRANSPARENT_HUGEPAGE
++static inline unsigned long pmd_dirty(pmd_t pmd)
+ {
+ 	pte_t pte = __pte(pmd_val(pmd));
+ 
+-	return pte_young(pte);
++	return pte_dirty(pte);
+ }
+ 
+-static inline unsigned long pmd_write(pmd_t pmd)
++static inline unsigned long pmd_young(pmd_t pmd)
+ {
+ 	pte_t pte = __pte(pmd_val(pmd));
+ 
+-	return pte_write(pte);
++	return pte_young(pte);
+ }
+ 
+ static inline unsigned long pmd_trans_huge(pmd_t pmd)
+diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
+index 37aa537b3ad8..bd7e2aa86c45 100644
+--- a/arch/sparc/mm/init_64.c
++++ b/arch/sparc/mm/init_64.c
+@@ -1495,7 +1495,7 @@ bool kern_addr_valid(unsigned long addr)
+ 	if ((long)addr < 0L) {
+ 		unsigned long pa = __pa(addr);
+ 
+-		if ((addr >> max_phys_bits) != 0UL)
++		if ((pa >> max_phys_bits) != 0UL)
+ 			return false;
+ 
+ 		return pfn_valid(pa >> PAGE_SHIFT);
+diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
+index 8639bb2ae058..6bf09f5594b2 100644
+--- a/arch/x86/kernel/ftrace.c
++++ b/arch/x86/kernel/ftrace.c
+@@ -983,6 +983,18 @@ void prepare_ftrace_return(unsigned long self_addr, unsigned long *parent,
+ 	unsigned long return_hooker = (unsigned long)
+ 				&return_to_handler;
+ 
++	/*
++	 * When resuming from suspend-to-ram, this function can be indirectly
++	 * called from early CPU startup code while the CPU is in real mode,
++	 * which would fail miserably.  Make sure the stack pointer is a
++	 * virtual address.
++	 *
++	 * This check isn't as accurate as virt_addr_valid(), but it should be
++	 * good enough for this purpose, and it's fast.
++	 */
++	if (unlikely((long)__builtin_frame_address(0) >= 0))
++		return;
++
+ 	if (unlikely(ftrace_graph_is_dead()))
+ 		return;
+ 
+diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
+index 25eab453f2b2..e7b96f1ac2c5 100644
+--- a/drivers/input/serio/i8042-x86ia64io.h
++++ b/drivers/input/serio/i8042-x86ia64io.h
+@@ -685,6 +685,13 @@ static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
+ 			DMI_MATCH(DMI_PRODUCT_NAME, "20046"),
+ 		},
+ 	},
++	{
++		/* Clevo P650RS, 650RP6, Sager NP8152-S, and others */
++		.matches = {
++			DMI_MATCH(DMI_SYS_VENDOR, "Notebook"),
++			DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
++		},
++	},
+ 	{ }
+ };
+ 
+diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
+index 437e4807727d..90ed2e12d345 100644
+--- a/drivers/mmc/host/sdhci-msm.c
++++ b/drivers/mmc/host/sdhci-msm.c
+@@ -524,9 +524,7 @@ static const struct sdhci_ops sdhci_msm_ops = {
+ static const struct sdhci_pltfm_data sdhci_msm_pdata = {
+ 	.quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
+ 		  SDHCI_QUIRK_NO_CARD_NO_RESET |
+-		  SDHCI_QUIRK_SINGLE_POWER_WRITE |
+-		  SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
+-	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
++		  SDHCI_QUIRK_SINGLE_POWER_WRITE,
+ 	.ops = &sdhci_msm_ops,
+ };
+ 
+diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
+index a0dabd4038ba..7ab24c5262f3 100644
+--- a/drivers/net/can/usb/gs_usb.c
++++ b/drivers/net/can/usb/gs_usb.c
+@@ -740,13 +740,18 @@ static const struct net_device_ops gs_usb_netdev_ops = {
+ static int gs_usb_set_identify(struct net_device *netdev, bool do_identify)
+ {
+ 	struct gs_can *dev = netdev_priv(netdev);
+-	struct gs_identify_mode imode;
++	struct gs_identify_mode *imode;
+ 	int rc;
+ 
++	imode = kmalloc(sizeof(*imode), GFP_KERNEL);
++
++	if (!imode)
++		return -ENOMEM;
++
+ 	if (do_identify)
+-		imode.mode = GS_CAN_IDENTIFY_ON;
++		imode->mode = GS_CAN_IDENTIFY_ON;
+ 	else
+-		imode.mode = GS_CAN_IDENTIFY_OFF;
++		imode->mode = GS_CAN_IDENTIFY_OFF;
+ 
+ 	rc = usb_control_msg(interface_to_usbdev(dev->iface),
+ 			     usb_sndctrlpipe(interface_to_usbdev(dev->iface),
+@@ -756,10 +761,12 @@ static int gs_usb_set_identify(struct net_device *netdev, bool do_identify)
+ 			     USB_RECIP_INTERFACE,
+ 			     dev->channel,
+ 			     0,
+-			     &imode,
+-			     sizeof(imode),
++			     imode,
++			     sizeof(*imode),
+ 			     100);
+ 
++	kfree(imode);
++
+ 	return (rc > 0) ? 0 : rc;
+ }
+ 
+diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
+index 81d8e3bd01b6..21ce0b701143 100644
+--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
++++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
+@@ -82,7 +82,7 @@
+ #define MLX5E_VALID_NUM_MTTS(num_mtts) (MLX5_MTT_OCTW(num_mtts) <= U16_MAX)
+ 
+ #define MLX5_UMR_ALIGN				(2048)
+-#define MLX5_MPWRQ_SMALL_PACKET_THRESHOLD	(128)
++#define MLX5_MPWRQ_SMALL_PACKET_THRESHOLD	(256)
+ 
+ #define MLX5E_PARAMS_DEFAULT_LRO_WQE_SZ                 (64 * 1024)
+ #define MLX5E_DEFAULT_LRO_TIMEOUT                       32
+diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
+index 90e81ae9f3bc..e034dbc4913d 100644
+--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
++++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs_ethtool.c
+@@ -563,6 +563,7 @@ int mlx5e_ethtool_get_all_flows(struct mlx5e_priv *priv, struct ethtool_rxnfc *i
+ 	int idx = 0;
+ 	int err = 0;
+ 
++	info->data = MAX_NUM_OF_ETHTOOL_RULES;
+ 	while ((!err || err == -ENOENT) && idx < info->rule_cnt) {
+ 		err = mlx5e_ethtool_get_flow(priv, info, location);
+ 		if (!err)
+diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+index 55957246c0e8..b5d5519542e8 100644
+--- a/drivers/net/ethernet/mellanox/mlx5/core/lag.c
++++ b/drivers/net/ethernet/mellanox/mlx5/core/lag.c
+@@ -294,7 +294,7 @@ static int mlx5_handle_changeupper_event(struct mlx5_lag *ldev,
+ 					 struct netdev_notifier_changeupper_info *info)
+ {
+ 	struct net_device *upper = info->upper_dev, *ndev_tmp;
+-	struct netdev_lag_upper_info *lag_upper_info;
++	struct netdev_lag_upper_info *lag_upper_info = NULL;
+ 	bool is_bonded;
+ 	int bond_status = 0;
+ 	int num_slaves = 0;
+@@ -303,7 +303,8 @@ static int mlx5_handle_changeupper_event(struct mlx5_lag *ldev,
+ 	if (!netif_is_lag_master(upper))
+ 		return 0;
+ 
+-	lag_upper_info = info->upper_info;
++	if (info->linking)
++		lag_upper_info = info->upper_info;
+ 
+ 	/* The event may still be of interest if the slave does not belong to
+ 	 * us, but is enslaved to a master which has one or more of our netdevs
+diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
+index 7a196a07fa51..d776db79e325 100644
+--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
++++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
+@@ -966,7 +966,7 @@ static int mlx5_load_one(struct mlx5_core_dev *dev, struct mlx5_priv *priv,
+ 	if (err) {
+ 		dev_err(&dev->pdev->dev, "Firmware over %d MS in initializing state, aborting\n",
+ 			FW_INIT_TIMEOUT_MILI);
+-		goto out_err;
++		goto err_cmd_cleanup;
+ 	}
+ 
+ 	err = mlx5_core_enable_hca(dev, 0);
+diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
+index 1a92de705199..a2d218b28c0e 100644
+--- a/drivers/net/ethernet/renesas/sh_eth.c
++++ b/drivers/net/ethernet/renesas/sh_eth.c
+@@ -1059,12 +1059,70 @@ static struct mdiobb_ops bb_ops = {
+ 	.get_mdio_data = sh_get_mdio,
+ };
+ 
++/* free Tx skb function */
++static int sh_eth_tx_free(struct net_device *ndev, bool sent_only)
++{
++	struct sh_eth_private *mdp = netdev_priv(ndev);
++	struct sh_eth_txdesc *txdesc;
++	int free_num = 0;
++	int entry;
++	bool sent;
++
++	for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) {
++		entry = mdp->dirty_tx % mdp->num_tx_ring;
++		txdesc = &mdp->tx_ring[entry];
++		sent = !(txdesc->status & cpu_to_le32(TD_TACT));
++		if (sent_only && !sent)
++			break;
++		/* TACT bit must be checked before all the following reads */
++		dma_rmb();
++		netif_info(mdp, tx_done, ndev,
++			   "tx entry %d status 0x%08x\n",
++			   entry, le32_to_cpu(txdesc->status));
++		/* Free the original skb. */
++		if (mdp->tx_skbuff[entry]) {
++			dma_unmap_single(&ndev->dev, le32_to_cpu(txdesc->addr),
++					 le32_to_cpu(txdesc->len) >> 16,
++					 DMA_TO_DEVICE);
++			dev_kfree_skb_irq(mdp->tx_skbuff[entry]);
++			mdp->tx_skbuff[entry] = NULL;
++			free_num++;
++		}
++		txdesc->status = cpu_to_le32(TD_TFP);
++		if (entry >= mdp->num_tx_ring - 1)
++			txdesc->status |= cpu_to_le32(TD_TDLE);
++
++		if (sent) {
++			ndev->stats.tx_packets++;
++			ndev->stats.tx_bytes += le32_to_cpu(txdesc->len) >> 16;
++		}
++	}
++	return free_num;
++}
++
+ /* free skb and descriptor buffer */
+ static void sh_eth_ring_free(struct net_device *ndev)
+ {
+ 	struct sh_eth_private *mdp = netdev_priv(ndev);
+ 	int ringsize, i;
+ 
++	if (mdp->rx_ring) {
++		for (i = 0; i < mdp->num_rx_ring; i++) {
++			if (mdp->rx_skbuff[i]) {
++				struct sh_eth_rxdesc *rxdesc = &mdp->rx_ring[i];
++
++				dma_unmap_single(&ndev->dev,
++						 le32_to_cpu(rxdesc->addr),
++						 ALIGN(mdp->rx_buf_sz, 32),
++						 DMA_FROM_DEVICE);
++			}
++		}
++		ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
++		dma_free_coherent(NULL, ringsize, mdp->rx_ring,
++				  mdp->rx_desc_dma);
++		mdp->rx_ring = NULL;
++	}
++
+ 	/* Free Rx skb ringbuffer */
+ 	if (mdp->rx_skbuff) {
+ 		for (i = 0; i < mdp->num_rx_ring; i++)
+@@ -1073,27 +1131,18 @@ static void sh_eth_ring_free(struct net_device *ndev)
+ 	kfree(mdp->rx_skbuff);
+ 	mdp->rx_skbuff = NULL;
+ 
+-	/* Free Tx skb ringbuffer */
+-	if (mdp->tx_skbuff) {
+-		for (i = 0; i < mdp->num_tx_ring; i++)
+-			dev_kfree_skb(mdp->tx_skbuff[i]);
+-	}
+-	kfree(mdp->tx_skbuff);
+-	mdp->tx_skbuff = NULL;
+-
+-	if (mdp->rx_ring) {
+-		ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring;
+-		dma_free_coherent(NULL, ringsize, mdp->rx_ring,
+-				  mdp->rx_desc_dma);
+-		mdp->rx_ring = NULL;
+-	}
+-
+ 	if (mdp->tx_ring) {
++		sh_eth_tx_free(ndev, false);
++
+ 		ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring;
+ 		dma_free_coherent(NULL, ringsize, mdp->tx_ring,
+ 				  mdp->tx_desc_dma);
+ 		mdp->tx_ring = NULL;
+ 	}
++
++	/* Free Tx skb ringbuffer */
++	kfree(mdp->tx_skbuff);
++	mdp->tx_skbuff = NULL;
+ }
+ 
+ /* format skb and descriptor buffer */
+@@ -1341,43 +1390,6 @@ static void sh_eth_dev_exit(struct net_device *ndev)
+ 	update_mac_address(ndev);
+ }
+ 
+-/* free Tx skb function */
+-static int sh_eth_txfree(struct net_device *ndev)
+-{
+-	struct sh_eth_private *mdp = netdev_priv(ndev);
+-	struct sh_eth_txdesc *txdesc;
+-	int free_num = 0;
+-	int entry;
+-
+-	for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) {
+-		entry = mdp->dirty_tx % mdp->num_tx_ring;
+-		txdesc = &mdp->tx_ring[entry];
+-		if (txdesc->status & cpu_to_le32(TD_TACT))
+-			break;
+-		/* TACT bit must be checked before all the following reads */
+-		dma_rmb();
+-		netif_info(mdp, tx_done, ndev,
+-			   "tx entry %d status 0x%08x\n",
+-			   entry, le32_to_cpu(txdesc->status));
+-		/* Free the original skb. */
+-		if (mdp->tx_skbuff[entry]) {
+-			dma_unmap_single(&ndev->dev, le32_to_cpu(txdesc->addr),
+-					 le32_to_cpu(txdesc->len) >> 16,
+-					 DMA_TO_DEVICE);
+-			dev_kfree_skb_irq(mdp->tx_skbuff[entry]);
+-			mdp->tx_skbuff[entry] = NULL;
+-			free_num++;
+-		}
+-		txdesc->status = cpu_to_le32(TD_TFP);
+-		if (entry >= mdp->num_tx_ring - 1)
+-			txdesc->status |= cpu_to_le32(TD_TDLE);
+-
+-		ndev->stats.tx_packets++;
+-		ndev->stats.tx_bytes += le32_to_cpu(txdesc->len) >> 16;
+-	}
+-	return free_num;
+-}
+-
+ /* Packet receive function */
+ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota)
+ {
+@@ -1620,7 +1632,7 @@ static void sh_eth_error(struct net_device *ndev, u32 intr_status)
+ 			   intr_status, mdp->cur_tx, mdp->dirty_tx,
+ 			   (u32)ndev->state, edtrr);
+ 		/* dirty buffer free */
+-		sh_eth_txfree(ndev);
++		sh_eth_tx_free(ndev, true);
+ 
+ 		/* SH7712 BUG */
+ 		if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) {
+@@ -1679,7 +1691,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev)
+ 		/* Clear Tx interrupts */
+ 		sh_eth_write(ndev, intr_status & cd->tx_check, EESR);
+ 
+-		sh_eth_txfree(ndev);
++		sh_eth_tx_free(ndev, true);
+ 		netif_wake_queue(ndev);
+ 	}
+ 
+@@ -2307,7 +2319,7 @@ static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev)
+ 
+ 	spin_lock_irqsave(&mdp->lock, flags);
+ 	if ((mdp->cur_tx - mdp->dirty_tx) >= (mdp->num_tx_ring - 4)) {
+-		if (!sh_eth_txfree(ndev)) {
++		if (!sh_eth_tx_free(ndev, true)) {
+ 			netif_warn(mdp, tx_queued, ndev, "TxFD exhausted.\n");
+ 			netif_stop_queue(ndev);
+ 			spin_unlock_irqrestore(&mdp->lock, flags);
+diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
+index d2e61e002926..f7c6a40aae81 100644
+--- a/drivers/net/macsec.c
++++ b/drivers/net/macsec.c
+@@ -2709,7 +2709,7 @@ static netdev_tx_t macsec_start_xmit(struct sk_buff *skb,
+ }
+ 
+ #define MACSEC_FEATURES \
+-	(NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_FRAGLIST)
++	(NETIF_F_SG | NETIF_F_HIGHDMA)
+ static struct lock_class_key macsec_netdev_addr_lock_key;
+ 
+ static int macsec_dev_init(struct net_device *dev)
+diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
+index 26d6f0bbe14b..dc8ccac0a01d 100644
+--- a/drivers/net/macvlan.c
++++ b/drivers/net/macvlan.c
+@@ -1140,6 +1140,7 @@ static int macvlan_port_create(struct net_device *dev)
+ static void macvlan_port_destroy(struct net_device *dev)
+ {
+ 	struct macvlan_port *port = macvlan_port_get_rtnl(dev);
++	struct sk_buff *skb;
+ 
+ 	dev->priv_flags &= ~IFF_MACVLAN_PORT;
+ 	netdev_rx_handler_unregister(dev);
+@@ -1148,7 +1149,15 @@ static void macvlan_port_destroy(struct net_device *dev)
+ 	 * but we need to cancel it and purge left skbs if any.
+ 	 */
+ 	cancel_work_sync(&port->bc_work);
+-	__skb_queue_purge(&port->bc_queue);
++
++	while ((skb = __skb_dequeue(&port->bc_queue))) {
++		const struct macvlan_dev *src = MACVLAN_SKB_CB(skb)->src;
++
++		if (src)
++			dev_put(src->dev);
++
++		kfree_skb(skb);
++	}
+ 
+ 	kfree_rcu(port, rcu);
+ }
+diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
+index 7a240fce3a7e..4865221aa9ac 100644
+--- a/drivers/net/phy/dp83640.c
++++ b/drivers/net/phy/dp83640.c
+@@ -1438,8 +1438,6 @@ static bool dp83640_rxtstamp(struct phy_device *phydev,
+ 		skb_info->tmo = jiffies + SKB_TIMESTAMP_TIMEOUT;
+ 		skb_queue_tail(&dp83640->rx_queue, skb);
+ 		schedule_delayed_work(&dp83640->ts_work, SKB_TIMESTAMP_TIMEOUT);
+-	} else {
+-		netif_rx_ni(skb);
+ 	}
+ 
+ 	return true;
+diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
+index 201ffa5fe4f7..a9be26f1f677 100644
+--- a/drivers/net/phy/phy.c
++++ b/drivers/net/phy/phy.c
+@@ -552,16 +552,18 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
+ EXPORT_SYMBOL(phy_mii_ioctl);
+ 
+ /**
+- * phy_start_aneg - start auto-negotiation for this PHY device
++ * phy_start_aneg_priv - start auto-negotiation for this PHY device
+  * @phydev: the phy_device struct
++ * @sync: indicate whether we should wait for the workqueue cancelation
+  *
+  * Description: Sanitizes the settings (if we're not autonegotiating
+  *   them), and then calls the driver's config_aneg function.
+  *   If the PHYCONTROL Layer is operating, we change the state to
+  *   reflect the beginning of Auto-negotiation or forcing.
+  */
+-int phy_start_aneg(struct phy_device *phydev)
++static int phy_start_aneg_priv(struct phy_device *phydev, bool sync)
+ {
++	bool trigger = 0;
+ 	int err;
+ 
+ 	mutex_lock(&phydev->lock);
+@@ -586,10 +588,40 @@ int phy_start_aneg(struct phy_device *phydev)
+ 		}
+ 	}
+ 
++	/* Re-schedule a PHY state machine to check PHY status because
++	 * negotiation may already be done and aneg interrupt may not be
++	 * generated.
++	 */
++	if (phy_interrupt_is_valid(phydev) && (phydev->state == PHY_AN)) {
++		err = phy_aneg_done(phydev);
++		if (err > 0) {
++			trigger = true;
++			err = 0;
++		}
++	}
++
+ out_unlock:
+ 	mutex_unlock(&phydev->lock);
++
++	if (trigger)
++		phy_trigger_machine(phydev, sync);
++
+ 	return err;
+ }
++
++/**
++ * phy_start_aneg - start auto-negotiation for this PHY device
++ * @phydev: the phy_device struct
++ *
++ * Description: Sanitizes the settings (if we're not autonegotiating
++ *   them), and then calls the driver's config_aneg function.
++ *   If the PHYCONTROL Layer is operating, we change the state to
++ *   reflect the beginning of Auto-negotiation or forcing.
++ */
++int phy_start_aneg(struct phy_device *phydev)
++{
++	return phy_start_aneg_priv(phydev, true);
++}
+ EXPORT_SYMBOL(phy_start_aneg);
+ 
+ /**
+@@ -617,7 +649,7 @@ void phy_start_machine(struct phy_device *phydev)
+  *   state machine runs.
+  */
+ 
+-static void phy_trigger_machine(struct phy_device *phydev, bool sync)
++void phy_trigger_machine(struct phy_device *phydev, bool sync)
+ {
+ 	if (sync)
+ 		cancel_delayed_work_sync(&phydev->state_queue);
+@@ -639,7 +671,7 @@ void phy_stop_machine(struct phy_device *phydev)
+ 	cancel_delayed_work_sync(&phydev->state_queue);
+ 
+ 	mutex_lock(&phydev->lock);
+-	if (phydev->state > PHY_UP)
++	if (phydev->state > PHY_UP && phydev->state != PHY_HALTED)
+ 		phydev->state = PHY_UP;
+ 	mutex_unlock(&phydev->lock);
+ }
+@@ -1100,7 +1132,7 @@ void phy_state_machine(struct work_struct *work)
+ 	mutex_unlock(&phydev->lock);
+ 
+ 	if (needs_aneg)
+-		err = phy_start_aneg(phydev);
++		err = phy_start_aneg_priv(phydev, false);
+ 	else if (do_suspend)
+ 		phy_suspend(phydev);
+ 
+diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
+index a2afb8ecb5bc..80ef4865cc8b 100644
+--- a/drivers/net/vrf.c
++++ b/drivers/net/vrf.c
+@@ -1124,7 +1124,7 @@ static int vrf_fib_rule(const struct net_device *dev, __u8 family, bool add_it)
+ 		goto nla_put_failure;
+ 
+ 	/* rule only needs to appear once */
+-	nlh->nlmsg_flags &= NLM_F_EXCL;
++	nlh->nlmsg_flags |= NLM_F_EXCL;
+ 
+ 	frh = nlmsg_data(nlh);
+ 	memset(frh, 0, sizeof(*frh));
+diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
+index 12f2252f6c98..953275b651bc 100644
+--- a/fs/ceph/inode.c
++++ b/fs/ceph/inode.c
+@@ -2080,11 +2080,6 @@ int __ceph_setattr(struct inode *inode, struct iattr *attr)
+ 	if (inode_dirty_flags)
+ 		__mark_inode_dirty(inode, inode_dirty_flags);
+ 
+-	if (ia_valid & ATTR_MODE) {
+-		err = posix_acl_chmod(inode, attr->ia_mode);
+-		if (err)
+-			goto out_put;
+-	}
+ 
+ 	if (mask) {
+ 		req->r_inode = inode;
+@@ -2098,13 +2093,11 @@ int __ceph_setattr(struct inode *inode, struct iattr *attr)
+ 	     ceph_cap_string(dirtied), mask);
+ 
+ 	ceph_mdsc_put_request(req);
+-	if (mask & CEPH_SETATTR_SIZE)
+-		__ceph_do_pending_vmtruncate(inode);
+-	ceph_free_cap_flush(prealloc_cf);
+-	return err;
+-out_put:
+-	ceph_mdsc_put_request(req);
+ 	ceph_free_cap_flush(prealloc_cf);
++
++	if (err >= 0 && (mask & CEPH_SETATTR_SIZE))
++		__ceph_do_pending_vmtruncate(inode);
++
+ 	return err;
+ }
+ 
+@@ -2123,7 +2116,12 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
+ 	if (err != 0)
+ 		return err;
+ 
+-	return __ceph_setattr(inode, attr);
++	err = __ceph_setattr(inode, attr);
++
++	if (err >= 0 && (attr->ia_valid & ATTR_MODE))
++		err = posix_acl_chmod(inode, attr->ia_mode);
++
++	return err;
+ }
+ 
+ /*
+diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
+index dba2ff8eaa68..452334694a5d 100644
+--- a/fs/nfsd/nfs3xdr.c
++++ b/fs/nfsd/nfs3xdr.c
+@@ -358,6 +358,8 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ {
+ 	unsigned int len, v, hdr, dlen;
+ 	u32 max_blocksize = svc_max_payload(rqstp);
++	struct kvec *head = rqstp->rq_arg.head;
++	struct kvec *tail = rqstp->rq_arg.tail;
+ 
+ 	p = decode_fh(p, &args->fh);
+ 	if (!p)
+@@ -367,6 +369,8 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 	args->count = ntohl(*p++);
+ 	args->stable = ntohl(*p++);
+ 	len = args->len = ntohl(*p++);
++	if ((void *)p > head->iov_base + head->iov_len)
++		return 0;
+ 	/*
+ 	 * The count must equal the amount of data passed.
+ 	 */
+@@ -377,9 +381,8 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 	 * Check to make sure that we got the right number of
+ 	 * bytes.
+ 	 */
+-	hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
+-	dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
+-		+ rqstp->rq_arg.tail[0].iov_len - hdr;
++	hdr = (void*)p - head->iov_base;
++	dlen = head->iov_len + rqstp->rq_arg.page_len + tail->iov_len - hdr;
+ 	/*
+ 	 * Round the length of the data which was specified up to
+ 	 * the next multiple of XDR units and then compare that
+@@ -396,7 +399,7 @@ nfs3svc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 		len = args->len = max_blocksize;
+ 	}
+ 	rqstp->rq_vec[0].iov_base = (void*)p;
+-	rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
++	rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
+ 	v = 0;
+ 	while (len > rqstp->rq_vec[v].iov_len) {
+ 		len -= rqstp->rq_vec[v].iov_len;
+@@ -471,6 +474,8 @@ nfs3svc_decode_symlinkargs(struct svc_rqst *rqstp, __be32 *p,
+ 	/* first copy and check from the first page */
+ 	old = (char*)p;
+ 	vec = &rqstp->rq_arg.head[0];
++	if ((void *)old > vec->iov_base + vec->iov_len)
++		return 0;
+ 	avail = vec->iov_len - (old - (char*)vec->iov_base);
+ 	while (len && avail && *old) {
+ 		*new++ = *old++;
+diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
+index a2b65fc56dd6..1645b977c9c6 100644
+--- a/fs/nfsd/nfssvc.c
++++ b/fs/nfsd/nfssvc.c
+@@ -733,6 +733,37 @@ static __be32 map_new_errors(u32 vers, __be32 nfserr)
+ 	return nfserr;
+ }
+ 
++/*
++ * A write procedure can have a large argument, and a read procedure can
++ * have a large reply, but no NFSv2 or NFSv3 procedure has argument and
++ * reply that can both be larger than a page.  The xdr code has taken
++ * advantage of this assumption to be a sloppy about bounds checking in
++ * some cases.  Pending a rewrite of the NFSv2/v3 xdr code to fix that
++ * problem, we enforce these assumptions here:
++ */
++static bool nfs_request_too_big(struct svc_rqst *rqstp,
++				struct svc_procedure *proc)
++{
++	/*
++	 * The ACL code has more careful bounds-checking and is not
++	 * susceptible to this problem:
++	 */
++	if (rqstp->rq_prog != NFS_PROGRAM)
++		return false;
++	/*
++	 * Ditto NFSv4 (which can in theory have argument and reply both
++	 * more than a page):
++	 */
++	if (rqstp->rq_vers >= 4)
++		return false;
++	/* The reply will be small, we're OK: */
++	if (proc->pc_xdrressize > 0 &&
++	    proc->pc_xdrressize < XDR_QUADLEN(PAGE_SIZE))
++		return false;
++
++	return rqstp->rq_arg.len > PAGE_SIZE;
++}
++
+ int
+ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
+ {
+@@ -745,6 +776,11 @@ nfsd_dispatch(struct svc_rqst *rqstp, __be32 *statp)
+ 				rqstp->rq_vers, rqstp->rq_proc);
+ 	proc = rqstp->rq_procinfo;
+ 
++	if (nfs_request_too_big(rqstp, proc)) {
++		dprintk("nfsd: NFSv%d argument too large\n", rqstp->rq_vers);
++		*statp = rpc_garbage_args;
++		return 1;
++	}
+ 	/*
+ 	 * Give the xdr decoder a chance to change this if it wants
+ 	 * (necessary in the NFSv4.0 compound case)
+diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
+index 41b468a6a90f..de07ff625777 100644
+--- a/fs/nfsd/nfsxdr.c
++++ b/fs/nfsd/nfsxdr.c
+@@ -280,6 +280,7 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 					struct nfsd_writeargs *args)
+ {
+ 	unsigned int len, hdr, dlen;
++	struct kvec *head = rqstp->rq_arg.head;
+ 	int v;
+ 
+ 	p = decode_fh(p, &args->fh);
+@@ -300,9 +301,10 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 	 * Check to make sure that we got the right number of
+ 	 * bytes.
+ 	 */
+-	hdr = (void*)p - rqstp->rq_arg.head[0].iov_base;
+-	dlen = rqstp->rq_arg.head[0].iov_len + rqstp->rq_arg.page_len
+-		- hdr;
++	hdr = (void*)p - head->iov_base;
++	if (hdr > head->iov_len)
++		return 0;
++	dlen = head->iov_len + rqstp->rq_arg.page_len - hdr;
+ 
+ 	/*
+ 	 * Round the length of the data which was specified up to
+@@ -316,7 +318,7 @@ nfssvc_decode_writeargs(struct svc_rqst *rqstp, __be32 *p,
+ 		return 0;
+ 
+ 	rqstp->rq_vec[0].iov_base = (void*)p;
+-	rqstp->rq_vec[0].iov_len = rqstp->rq_arg.head[0].iov_len - hdr;
++	rqstp->rq_vec[0].iov_len = head->iov_len - hdr;
+ 	v = 0;
+ 	while (len > rqstp->rq_vec[v].iov_len) {
+ 		len -= rqstp->rq_vec[v].iov_len;
+diff --git a/include/linux/phy.h b/include/linux/phy.h
+index e25f1830fbcf..bd22670e2182 100644
+--- a/include/linux/phy.h
++++ b/include/linux/phy.h
+@@ -806,6 +806,7 @@ void phy_change(struct work_struct *work);
+ void phy_mac_interrupt(struct phy_device *phydev, int new_link);
+ void phy_start_machine(struct phy_device *phydev);
+ void phy_stop_machine(struct phy_device *phydev);
++void phy_trigger_machine(struct phy_device *phydev, bool sync);
+ int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd);
+ int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd);
+ int phy_ethtool_ksettings_get(struct phy_device *phydev,
+diff --git a/include/uapi/linux/ipv6_route.h b/include/uapi/linux/ipv6_route.h
+index f6598d1c886e..316e838b7470 100644
+--- a/include/uapi/linux/ipv6_route.h
++++ b/include/uapi/linux/ipv6_route.h
+@@ -34,7 +34,7 @@
+ #define RTF_PREF(pref)	((pref) << 27)
+ #define RTF_PREF_MASK	0x18000000
+ 
+-#define RTF_PCPU	0x40000000
++#define RTF_PCPU	0x40000000	/* read-only: can not be set by user */
+ #define RTF_LOCAL	0x80000000
+ 
+ 
+diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
+index 85d1c9423ccb..7c9f94c53441 100644
+--- a/kernel/bpf/verifier.c
++++ b/kernel/bpf/verifier.c
+@@ -1829,14 +1829,15 @@ static void find_good_pkt_pointers(struct bpf_verifier_state *state,
+ 
+ 	for (i = 0; i < MAX_BPF_REG; i++)
+ 		if (regs[i].type == PTR_TO_PACKET && regs[i].id == dst_reg->id)
+-			regs[i].range = dst_reg->off;
++			/* keep the maximum range already checked */
++			regs[i].range = max(regs[i].range, dst_reg->off);
+ 
+ 	for (i = 0; i < MAX_BPF_STACK; i += BPF_REG_SIZE) {
+ 		if (state->stack_slot_type[i] != STACK_SPILL)
+ 			continue;
+ 		reg = &state->spilled_regs[i / BPF_REG_SIZE];
+ 		if (reg->type == PTR_TO_PACKET && reg->id == dst_reg->id)
+-			reg->range = dst_reg->off;
++			reg->range = max(reg->range, dst_reg->off);
+ 	}
+ }
+ 
+diff --git a/net/9p/client.c b/net/9p/client.c
+index 3fc94a49ccd5..cf129fec7329 100644
+--- a/net/9p/client.c
++++ b/net/9p/client.c
+@@ -2101,6 +2101,10 @@ int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset)
+ 		trace_9p_protocol_dump(clnt, req->rc);
+ 		goto free_and_error;
+ 	}
++	if (rsize < count) {
++		pr_err("bogus RREADDIR count (%d > %d)\n", count, rsize);
++		count = rsize;
++	}
+ 
+ 	p9_debug(P9_DEBUG_9P, "<<< RREADDIR count %d\n", count);
+ 
+diff --git a/net/core/neighbour.c b/net/core/neighbour.c
+index 9901e5b75a05..f45f6198851f 100644
+--- a/net/core/neighbour.c
++++ b/net/core/neighbour.c
+@@ -859,7 +859,8 @@ static void neigh_probe(struct neighbour *neigh)
+ 	if (skb)
+ 		skb = skb_clone(skb, GFP_ATOMIC);
+ 	write_unlock(&neigh->lock);
+-	neigh->ops->solicit(neigh, skb);
++	if (neigh->ops->solicit)
++		neigh->ops->solicit(neigh, skb);
+ 	atomic_inc(&neigh->probes);
+ 	kfree_skb(skb);
+ }
+diff --git a/net/core/netpoll.c b/net/core/netpoll.c
+index 53599bd0c82d..457f882b0f7b 100644
+--- a/net/core/netpoll.c
++++ b/net/core/netpoll.c
+@@ -105,15 +105,21 @@ static void queue_process(struct work_struct *work)
+ 	while ((skb = skb_dequeue(&npinfo->txq))) {
+ 		struct net_device *dev = skb->dev;
+ 		struct netdev_queue *txq;
++		unsigned int q_index;
+ 
+ 		if (!netif_device_present(dev) || !netif_running(dev)) {
+ 			kfree_skb(skb);
+ 			continue;
+ 		}
+ 
+-		txq = skb_get_tx_queue(dev, skb);
+-
+ 		local_irq_save(flags);
++		/* check if skb->queue_mapping is still valid */
++		q_index = skb_get_queue_mapping(skb);
++		if (unlikely(q_index >= dev->real_num_tx_queues)) {
++			q_index = q_index % dev->real_num_tx_queues;
++			skb_set_queue_mapping(skb, q_index);
++		}
++		txq = netdev_get_tx_queue(dev, q_index);
+ 		HARD_TX_LOCK(dev, txq, smp_processor_id());
+ 		if (netif_xmit_frozen_or_stopped(txq) ||
+ 		    netpoll_start_xmit(skb, dev, txq) != NETDEV_TX_OK) {
+diff --git a/net/core/skbuff.c b/net/core/skbuff.c
+index f0f462c0573d..fe008f1bd930 100644
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -3076,22 +3076,32 @@ struct sk_buff *skb_segment(struct sk_buff *head_skb,
+ 	if (sg && csum && (mss != GSO_BY_FRAGS))  {
+ 		if (!(features & NETIF_F_GSO_PARTIAL)) {
+ 			struct sk_buff *iter;
++			unsigned int frag_len;
+ 
+ 			if (!list_skb ||
+ 			    !net_gso_ok(features, skb_shinfo(head_skb)->gso_type))
+ 				goto normal;
+ 
+-			/* Split the buffer at the frag_list pointer.
+-			 * This is based on the assumption that all
+-			 * buffers in the chain excluding the last
+-			 * containing the same amount of data.
++			/* If we get here then all the required
++			 * GSO features except frag_list are supported.
++			 * Try to split the SKB to multiple GSO SKBs
++			 * with no frag_list.
++			 * Currently we can do that only when the buffers don't
++			 * have a linear part and all the buffers except
++			 * the last are of the same length.
+ 			 */
++			frag_len = list_skb->len;
+ 			skb_walk_frags(head_skb, iter) {
++				if (frag_len != iter->len && iter->next)
++					goto normal;
+ 				if (skb_headlen(iter))
+ 					goto normal;
+ 
+ 				len -= iter->len;
+ 			}
++
++			if (len != frag_len)
++				goto normal;
+ 		}
+ 
+ 		/* GSO partial only requires that we trim off any excess that
+@@ -3779,6 +3789,7 @@ static void __skb_complete_tx_timestamp(struct sk_buff *skb,
+ 	serr->ee.ee_errno = ENOMSG;
+ 	serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;
+ 	serr->ee.ee_info = tstype;
++	serr->header.h4.iif = skb->dev ? skb->dev->ifindex : 0;
+ 	if (sk->sk_tsflags & SOF_TIMESTAMPING_OPT_ID) {
+ 		serr->ee.ee_data = skb_shinfo(skb)->tskey;
+ 		if (sk->sk_protocol == IPPROTO_TCP &&
+diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
+index 9826695ddfc6..4d37bdcbc2d5 100644
+--- a/net/ipv4/ip_sockglue.c
++++ b/net/ipv4/ip_sockglue.c
+@@ -474,16 +474,15 @@ static bool ipv4_datagram_support_cmsg(const struct sock *sk,
+ 		return false;
+ 
+ 	/* Support IP_PKTINFO on tstamp packets if requested, to correlate
+-	 * timestamp with egress dev. Not possible for packets without dev
++	 * timestamp with egress dev. Not possible for packets without iif
+ 	 * or without payload (SOF_TIMESTAMPING_OPT_TSONLY).
+ 	 */
+-	if ((!(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_CMSG)) ||
+-	    (!skb->dev))
++	info = PKTINFO_SKB_CB(skb);
++	if (!(sk->sk_tsflags & SOF_TIMESTAMPING_OPT_CMSG) ||
++	    !info->ipi_ifindex)
+ 		return false;
+ 
+-	info = PKTINFO_SKB_CB(skb);
+ 	info->ipi_spec_dst.s_addr = ip_hdr(skb)->saddr;
+-	info->ipi_ifindex = skb->dev->ifindex;
+ 	return true;
+ }
+ 
+diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
+index 105c0748c52f..e612991c9185 100644
+--- a/net/ipv4/ping.c
++++ b/net/ipv4/ping.c
+@@ -156,17 +156,18 @@ int ping_hash(struct sock *sk)
+ void ping_unhash(struct sock *sk)
+ {
+ 	struct inet_sock *isk = inet_sk(sk);
++
+ 	pr_debug("ping_unhash(isk=%p,isk->num=%u)\n", isk, isk->inet_num);
++	write_lock_bh(&ping_table.lock);
+ 	if (sk_hashed(sk)) {
+-		write_lock_bh(&ping_table.lock);
+ 		hlist_nulls_del(&sk->sk_nulls_node);
+ 		sk_nulls_node_init(&sk->sk_nulls_node);
+ 		sock_put(sk);
+ 		isk->inet_num = 0;
+ 		isk->inet_sport = 0;
+ 		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
+-		write_unlock_bh(&ping_table.lock);
+ 	}
++	write_unlock_bh(&ping_table.lock);
+ }
+ EXPORT_SYMBOL_GPL(ping_unhash);
+ 
+diff --git a/net/ipv4/route.c b/net/ipv4/route.c
+index 17e6fbf30448..6dbcb37753d7 100644
+--- a/net/ipv4/route.c
++++ b/net/ipv4/route.c
+@@ -2569,7 +2569,7 @@ static int inet_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh)
+ 	skb_reset_network_header(skb);
+ 
+ 	/* Bugfix: need to give ip_route_input enough of an IP header to not gag. */
+-	ip_hdr(skb)->protocol = IPPROTO_ICMP;
++	ip_hdr(skb)->protocol = IPPROTO_UDP;
+ 	skb_reserve(skb, MAX_HEADER + sizeof(struct iphdr));
+ 
+ 	src = tb[RTA_SRC] ? nla_get_in_addr(tb[RTA_SRC]) : 0;
+diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
+index 6a90a0e130dc..eb142ca71fc5 100644
+--- a/net/ipv4/tcp.c
++++ b/net/ipv4/tcp.c
+@@ -2297,6 +2297,7 @@ int tcp_disconnect(struct sock *sk, int flags)
+ 	tcp_init_send_head(sk);
+ 	memset(&tp->rx_opt, 0, sizeof(tp->rx_opt));
+ 	__sk_dst_reset(sk);
++	tcp_saved_syn_free(tp);
+ 
+ 	WARN_ON(inet->inet_num && !icsk->icsk_bind_hash);
+ 
+diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
+index f9038d6b109e..baea5df43598 100644
+--- a/net/ipv4/tcp_cong.c
++++ b/net/ipv4/tcp_cong.c
+@@ -167,12 +167,8 @@ void tcp_assign_congestion_control(struct sock *sk)
+ 	}
+ out:
+ 	rcu_read_unlock();
++	memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
+ 
+-	/* Clear out private data before diag gets it and
+-	 * the ca has not been initialized.
+-	 */
+-	if (ca->get_info)
+-		memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
+ 	if (ca->flags & TCP_CONG_NEEDS_ECN)
+ 		INET_ECN_xmit(sk);
+ 	else
+@@ -199,11 +195,10 @@ static void tcp_reinit_congestion_control(struct sock *sk,
+ 	tcp_cleanup_congestion_control(sk);
+ 	icsk->icsk_ca_ops = ca;
+ 	icsk->icsk_ca_setsockopt = 1;
++	memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
+ 
+-	if (sk->sk_state != TCP_CLOSE) {
+-		memset(icsk->icsk_ca_priv, 0, sizeof(icsk->icsk_ca_priv));
++	if (sk->sk_state != TCP_CLOSE)
+ 		tcp_init_congestion_control(sk);
+-	}
+ }
+ 
+ /* Manage refcounts on socket close. */
+diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
+index 95dfcba38ff6..cffdbdbff3a2 100644
+--- a/net/ipv6/addrconf.c
++++ b/net/ipv6/addrconf.c
+@@ -3253,14 +3253,24 @@ static void addrconf_gre_config(struct net_device *dev)
+ static int fixup_permanent_addr(struct inet6_dev *idev,
+ 				struct inet6_ifaddr *ifp)
+ {
+-	if (!ifp->rt) {
+-		struct rt6_info *rt;
++	/* rt6i_ref == 0 means the host route was removed from the
++	 * FIB, for example, if 'lo' device is taken down. In that
++	 * case regenerate the host route.
++	 */
++	if (!ifp->rt || !atomic_read(&ifp->rt->rt6i_ref)) {
++		struct rt6_info *rt, *prev;
+ 
+ 		rt = addrconf_dst_alloc(idev, &ifp->addr, false);
+ 		if (unlikely(IS_ERR(rt)))
+ 			return PTR_ERR(rt);
+ 
++		/* ifp->rt can be accessed outside of rtnl */
++		spin_lock(&ifp->lock);
++		prev = ifp->rt;
+ 		ifp->rt = rt;
++		spin_unlock(&ifp->lock);
++
++		ip6_rt_put(prev);
+ 	}
+ 
+ 	if (!(ifp->flags & IFA_F_NOPREFIXROUTE)) {
+@@ -3602,14 +3612,19 @@ static int addrconf_ifdown(struct net_device *dev, int how)
+ 	INIT_LIST_HEAD(&del_list);
+ 	list_for_each_entry_safe(ifa, tmp, &idev->addr_list, if_list) {
+ 		struct rt6_info *rt = NULL;
++		bool keep;
+ 
+ 		addrconf_del_dad_work(ifa);
+ 
++		keep = keep_addr && (ifa->flags & IFA_F_PERMANENT) &&
++			!addr_is_local(&ifa->addr);
++		if (!keep)
++			list_move(&ifa->if_list, &del_list);
++
+ 		write_unlock_bh(&idev->lock);
+ 		spin_lock_bh(&ifa->lock);
+ 
+-		if (keep_addr && (ifa->flags & IFA_F_PERMANENT) &&
+-		    !addr_is_local(&ifa->addr)) {
++		if (keep) {
+ 			/* set state to skip the notifier below */
+ 			state = INET6_IFADDR_STATE_DEAD;
+ 			ifa->state = 0;
+@@ -3621,8 +3636,6 @@ static int addrconf_ifdown(struct net_device *dev, int how)
+ 		} else {
+ 			state = ifa->state;
+ 			ifa->state = INET6_IFADDR_STATE_DEAD;
+-
+-			list_move(&ifa->if_list, &del_list);
+ 		}
+ 
+ 		spin_unlock_bh(&ifa->lock);
+diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
+index 8616d17cf08f..442ec1f39ed1 100644
+--- a/net/ipv6/datagram.c
++++ b/net/ipv6/datagram.c
+@@ -400,9 +400,6 @@ static inline bool ipv6_datagram_support_addr(struct sock_exterr_skb *serr)
+  * At one point, excluding local errors was a quick test to identify icmp/icmp6
+  * errors. This is no longer true, but the test remained, so the v6 stack,
+  * unlike v4, also honors cmsg requests on all wifi and timestamp errors.
+- *
+- * Timestamp code paths do not initialize the fields expected by cmsg:
+- * the PKTINFO fields in skb->cb[]. Fill those in here.
+  */
+ static bool ip6_datagram_support_cmsg(struct sk_buff *skb,
+ 				      struct sock_exterr_skb *serr)
+@@ -414,14 +411,9 @@ static bool ip6_datagram_support_cmsg(struct sk_buff *skb,
+ 	if (serr->ee.ee_origin == SO_EE_ORIGIN_LOCAL)
+ 		return false;
+ 
+-	if (!skb->dev)
++	if (!IP6CB(skb)->iif)
+ 		return false;
+ 
+-	if (skb->protocol == htons(ETH_P_IPV6))
+-		IP6CB(skb)->iif = skb->dev->ifindex;
+-	else
+-		PKTINFO_SKB_CB(skb)->ipi_ifindex = skb->dev->ifindex;
+-
+ 	return true;
+ }
+ 
+diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
+index f6ba45242851..116b4da06820 100644
+--- a/net/ipv6/ip6_tunnel.c
++++ b/net/ipv6/ip6_tunnel.c
+@@ -1037,7 +1037,7 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield,
+ 	struct ip6_tnl *t = netdev_priv(dev);
+ 	struct net *net = t->net;
+ 	struct net_device_stats *stats = &t->dev->stats;
+-	struct ipv6hdr *ipv6h = ipv6_hdr(skb);
++	struct ipv6hdr *ipv6h;
+ 	struct ipv6_tel_txoption opt;
+ 	struct dst_entry *dst = NULL, *ndst = NULL;
+ 	struct net_device *tdev;
+@@ -1057,26 +1057,28 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield,
+ 
+ 	/* NBMA tunnel */
+ 	if (ipv6_addr_any(&t->parms.raddr)) {
+-		struct in6_addr *addr6;
+-		struct neighbour *neigh;
+-		int addr_type;
++		if (skb->protocol == htons(ETH_P_IPV6)) {
++			struct in6_addr *addr6;
++			struct neighbour *neigh;
++			int addr_type;
+ 
+-		if (!skb_dst(skb))
+-			goto tx_err_link_failure;
++			if (!skb_dst(skb))
++				goto tx_err_link_failure;
+ 
+-		neigh = dst_neigh_lookup(skb_dst(skb),
+-					 &ipv6_hdr(skb)->daddr);
+-		if (!neigh)
+-			goto tx_err_link_failure;
++			neigh = dst_neigh_lookup(skb_dst(skb),
++						 &ipv6_hdr(skb)->daddr);
++			if (!neigh)
++				goto tx_err_link_failure;
+ 
+-		addr6 = (struct in6_addr *)&neigh->primary_key;
+-		addr_type = ipv6_addr_type(addr6);
++			addr6 = (struct in6_addr *)&neigh->primary_key;
++			addr_type = ipv6_addr_type(addr6);
+ 
+-		if (addr_type == IPV6_ADDR_ANY)
+-			addr6 = &ipv6_hdr(skb)->daddr;
++			if (addr_type == IPV6_ADDR_ANY)
++				addr6 = &ipv6_hdr(skb)->daddr;
+ 
+-		memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr));
+-		neigh_release(neigh);
++			memcpy(&fl6->daddr, addr6, sizeof(fl6->daddr));
++			neigh_release(neigh);
++		}
+ 	} else if (!(t->parms.flags &
+ 		     (IP6_TNL_F_USE_ORIG_TCLASS | IP6_TNL_F_USE_ORIG_FWMARK))) {
+ 		/* enable the cache only only if the routing decision does
+diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
+index 7f4265b1649b..117405dd07a3 100644
+--- a/net/ipv6/ip6mr.c
++++ b/net/ipv6/ip6mr.c
+@@ -774,7 +774,8 @@ static struct net_device *ip6mr_reg_vif(struct net *net, struct mr6_table *mrt)
+  *	Delete a VIF entry
+  */
+ 
+-static int mif6_delete(struct mr6_table *mrt, int vifi, struct list_head *head)
++static int mif6_delete(struct mr6_table *mrt, int vifi, int notify,
++		       struct list_head *head)
+ {
+ 	struct mif_device *v;
+ 	struct net_device *dev;
+@@ -820,7 +821,7 @@ static int mif6_delete(struct mr6_table *mrt, int vifi, struct list_head *head)
+ 					     dev->ifindex, &in6_dev->cnf);
+ 	}
+ 
+-	if (v->flags & MIFF_REGISTER)
++	if ((v->flags & MIFF_REGISTER) && !notify)
+ 		unregister_netdevice_queue(dev, head);
+ 
+ 	dev_put(dev);
+@@ -1331,7 +1332,6 @@ static int ip6mr_device_event(struct notifier_block *this,
+ 	struct mr6_table *mrt;
+ 	struct mif_device *v;
+ 	int ct;
+-	LIST_HEAD(list);
+ 
+ 	if (event != NETDEV_UNREGISTER)
+ 		return NOTIFY_DONE;
+@@ -1340,10 +1340,9 @@ static int ip6mr_device_event(struct notifier_block *this,
+ 		v = &mrt->vif6_table[0];
+ 		for (ct = 0; ct < mrt->maxvif; ct++, v++) {
+ 			if (v->dev == dev)
+-				mif6_delete(mrt, ct, &list);
++				mif6_delete(mrt, ct, 1, NULL);
+ 		}
+ 	}
+-	unregister_netdevice_many(&list);
+ 
+ 	return NOTIFY_DONE;
+ }
+@@ -1552,7 +1551,7 @@ static void mroute_clean_tables(struct mr6_table *mrt, bool all)
+ 	for (i = 0; i < mrt->maxvif; i++) {
+ 		if (!all && (mrt->vif6_table[i].flags & VIFF_STATIC))
+ 			continue;
+-		mif6_delete(mrt, i, &list);
++		mif6_delete(mrt, i, 0, &list);
+ 	}
+ 	unregister_netdevice_many(&list);
+ 
+@@ -1706,7 +1705,7 @@ int ip6_mroute_setsockopt(struct sock *sk, int optname, char __user *optval, uns
+ 		if (copy_from_user(&mifi, optval, sizeof(mifi_t)))
+ 			return -EFAULT;
+ 		rtnl_lock();
+-		ret = mif6_delete(mrt, mifi, NULL);
++		ret = mif6_delete(mrt, mifi, 0, NULL);
+ 		rtnl_unlock();
+ 		return ret;
+ 
+diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
+index 869ffc76befa..ced3817539c2 100644
+--- a/net/ipv6/raw.c
++++ b/net/ipv6/raw.c
+@@ -1171,8 +1171,7 @@ static int rawv6_ioctl(struct sock *sk, int cmd, unsigned long arg)
+ 		spin_lock_bh(&sk->sk_receive_queue.lock);
+ 		skb = skb_peek(&sk->sk_receive_queue);
+ 		if (skb)
+-			amount = skb_tail_pointer(skb) -
+-				skb_transport_header(skb);
++			amount = skb->len;
+ 		spin_unlock_bh(&sk->sk_receive_queue.lock);
+ 		return put_user(amount, (int __user *)arg);
+ 	}
+diff --git a/net/ipv6/route.c b/net/ipv6/route.c
+index 8d6c09f082c2..9f1bc756799a 100644
+--- a/net/ipv6/route.c
++++ b/net/ipv6/route.c
+@@ -1826,6 +1826,10 @@ static struct rt6_info *ip6_route_info_create(struct fib6_config *cfg)
+ 	int addr_type;
+ 	int err = -EINVAL;
+ 
++	/* RTF_PCPU is an internal flag; can not be set by userspace */
++	if (cfg->fc_flags & RTF_PCPU)
++		goto out;
++
+ 	if (cfg->fc_dst_len > 128 || cfg->fc_src_len > 128)
+ 		goto out;
+ #ifndef CONFIG_IPV6_SUBTREES
+diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
+index a646f3481240..fecad1098cf8 100644
+--- a/net/kcm/kcmsock.c
++++ b/net/kcm/kcmsock.c
+@@ -1685,7 +1685,7 @@ static int kcm_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+ 		struct kcm_attach info;
+ 
+ 		if (copy_from_user(&info, (void __user *)arg, sizeof(info)))
+-			err = -EFAULT;
++			return -EFAULT;
+ 
+ 		err = kcm_attach_ioctl(sock, &info);
+ 
+@@ -1695,7 +1695,7 @@ static int kcm_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+ 		struct kcm_unattach info;
+ 
+ 		if (copy_from_user(&info, (void __user *)arg, sizeof(info)))
+-			err = -EFAULT;
++			return -EFAULT;
+ 
+ 		err = kcm_unattach_ioctl(sock, &info);
+ 
+@@ -1706,7 +1706,7 @@ static int kcm_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
+ 		struct socket *newsock = NULL;
+ 
+ 		if (copy_from_user(&info, (void __user *)arg, sizeof(info)))
+-			err = -EFAULT;
++			return -EFAULT;
+ 
+ 		err = kcm_clone(sock, &info, &newsock);
+ 
+diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
+index a2ed3bda4ddc..e702cb95b89b 100644
+--- a/net/l2tp/l2tp_core.c
++++ b/net/l2tp/l2tp_core.c
+@@ -278,7 +278,8 @@ struct l2tp_session *l2tp_session_find(struct net *net, struct l2tp_tunnel *tunn
+ }
+ EXPORT_SYMBOL_GPL(l2tp_session_find);
+ 
+-struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth)
++struct l2tp_session *l2tp_session_get_nth(struct l2tp_tunnel *tunnel, int nth,
++					  bool do_ref)
+ {
+ 	int hash;
+ 	struct l2tp_session *session;
+@@ -288,6 +289,9 @@ struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth)
+ 	for (hash = 0; hash < L2TP_HASH_SIZE; hash++) {
+ 		hlist_for_each_entry(session, &tunnel->session_hlist[hash], hlist) {
+ 			if (++count > nth) {
++				l2tp_session_inc_refcount(session);
++				if (do_ref && session->ref)
++					session->ref(session);
+ 				read_unlock_bh(&tunnel->hlist_lock);
+ 				return session;
+ 			}
+@@ -298,7 +302,7 @@ struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth)
+ 
+ 	return NULL;
+ }
+-EXPORT_SYMBOL_GPL(l2tp_session_find_nth);
++EXPORT_SYMBOL_GPL(l2tp_session_get_nth);
+ 
+ /* Lookup a session by interface name.
+  * This is very inefficient but is only used by management interfaces.
+diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
+index 181e755c2fc4..e7233bad65e0 100644
+--- a/net/l2tp/l2tp_core.h
++++ b/net/l2tp/l2tp_core.h
+@@ -243,7 +243,8 @@ static inline struct l2tp_tunnel *l2tp_sock_to_tunnel(struct sock *sk)
+ struct l2tp_session *l2tp_session_find(struct net *net,
+ 				       struct l2tp_tunnel *tunnel,
+ 				       u32 session_id);
+-struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth);
++struct l2tp_session *l2tp_session_get_nth(struct l2tp_tunnel *tunnel, int nth,
++					  bool do_ref);
+ struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname);
+ struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id);
+ struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth);
+diff --git a/net/l2tp/l2tp_debugfs.c b/net/l2tp/l2tp_debugfs.c
+index 2d6760a2ae34..d100aed3d06f 100644
+--- a/net/l2tp/l2tp_debugfs.c
++++ b/net/l2tp/l2tp_debugfs.c
+@@ -53,7 +53,7 @@ static void l2tp_dfs_next_tunnel(struct l2tp_dfs_seq_data *pd)
+ 
+ static void l2tp_dfs_next_session(struct l2tp_dfs_seq_data *pd)
+ {
+-	pd->session = l2tp_session_find_nth(pd->tunnel, pd->session_idx);
++	pd->session = l2tp_session_get_nth(pd->tunnel, pd->session_idx, true);
+ 	pd->session_idx++;
+ 
+ 	if (pd->session == NULL) {
+@@ -238,10 +238,14 @@ static int l2tp_dfs_seq_show(struct seq_file *m, void *v)
+ 	}
+ 
+ 	/* Show the tunnel or session context */
+-	if (pd->session == NULL)
++	if (!pd->session) {
+ 		l2tp_dfs_seq_tunnel_show(m, pd->tunnel);
+-	else
++	} else {
+ 		l2tp_dfs_seq_session_show(m, pd->session);
++		if (pd->session->deref)
++			pd->session->deref(pd->session);
++		l2tp_session_dec_refcount(pd->session);
++	}
+ 
+ out:
+ 	return 0;
+diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
+index ff750bb334fa..20669537816e 100644
+--- a/net/l2tp/l2tp_ip.c
++++ b/net/l2tp/l2tp_ip.c
+@@ -178,9 +178,10 @@ static int l2tp_ip_recv(struct sk_buff *skb)
+ 
+ 	tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
+ 	tunnel = l2tp_tunnel_find(net, tunnel_id);
+-	if (tunnel != NULL)
++	if (tunnel) {
+ 		sk = tunnel->sock;
+-	else {
++		sock_hold(sk);
++	} else {
+ 		struct iphdr *iph = (struct iphdr *) skb_network_header(skb);
+ 
+ 		read_lock_bh(&l2tp_ip_lock);
+diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
+index 1a65c9a517b6..a4b0c9232bf1 100644
+--- a/net/l2tp/l2tp_ip6.c
++++ b/net/l2tp/l2tp_ip6.c
+@@ -191,9 +191,10 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
+ 
+ 	tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
+ 	tunnel = l2tp_tunnel_find(net, tunnel_id);
+-	if (tunnel != NULL)
++	if (tunnel) {
+ 		sk = tunnel->sock;
+-	else {
++		sock_hold(sk);
++	} else {
+ 		struct ipv6hdr *iph = ipv6_hdr(skb);
+ 
+ 		read_lock_bh(&l2tp_ip6_lock);
+diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
+index bf3117771822..9f66272b163b 100644
+--- a/net/l2tp/l2tp_netlink.c
++++ b/net/l2tp/l2tp_netlink.c
+@@ -844,7 +844,7 @@ static int l2tp_nl_cmd_session_dump(struct sk_buff *skb, struct netlink_callback
+ 				goto out;
+ 		}
+ 
+-		session = l2tp_session_find_nth(tunnel, si);
++		session = l2tp_session_get_nth(tunnel, si, false);
+ 		if (session == NULL) {
+ 			ti++;
+ 			tunnel = NULL;
+@@ -854,8 +854,11 @@ static int l2tp_nl_cmd_session_dump(struct sk_buff *skb, struct netlink_callback
+ 
+ 		if (l2tp_nl_session_send(skb, NETLINK_CB(cb->skb).portid,
+ 					 cb->nlh->nlmsg_seq, NLM_F_MULTI,
+-					 session, L2TP_CMD_SESSION_GET) < 0)
++					 session, L2TP_CMD_SESSION_GET) < 0) {
++			l2tp_session_dec_refcount(session);
+ 			break;
++		}
++		l2tp_session_dec_refcount(session);
+ 
+ 		si++;
+ 	}
+diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
+index 41d47bfda15c..1387f547a09e 100644
+--- a/net/l2tp/l2tp_ppp.c
++++ b/net/l2tp/l2tp_ppp.c
+@@ -450,6 +450,10 @@ static void pppol2tp_session_close(struct l2tp_session *session)
+ static void pppol2tp_session_destruct(struct sock *sk)
+ {
+ 	struct l2tp_session *session = sk->sk_user_data;
++
++	skb_queue_purge(&sk->sk_receive_queue);
++	skb_queue_purge(&sk->sk_write_queue);
++
+ 	if (session) {
+ 		sk->sk_user_data = NULL;
+ 		BUG_ON(session->magic != L2TP_SESSION_MAGIC);
+@@ -488,9 +492,6 @@ static int pppol2tp_release(struct socket *sock)
+ 		l2tp_session_queue_purge(session);
+ 		sock_put(sk);
+ 	}
+-	skb_queue_purge(&sk->sk_receive_queue);
+-	skb_queue_purge(&sk->sk_write_queue);
+-
+ 	release_sock(sk);
+ 
+ 	/* This will delete the session context via
+@@ -1554,7 +1555,7 @@ static void pppol2tp_next_tunnel(struct net *net, struct pppol2tp_seq_data *pd)
+ 
+ static void pppol2tp_next_session(struct net *net, struct pppol2tp_seq_data *pd)
+ {
+-	pd->session = l2tp_session_find_nth(pd->tunnel, pd->session_idx);
++	pd->session = l2tp_session_get_nth(pd->tunnel, pd->session_idx, true);
+ 	pd->session_idx++;
+ 
+ 	if (pd->session == NULL) {
+@@ -1681,10 +1682,14 @@ static int pppol2tp_seq_show(struct seq_file *m, void *v)
+ 
+ 	/* Show the tunnel or session context.
+ 	 */
+-	if (pd->session == NULL)
++	if (!pd->session) {
+ 		pppol2tp_seq_tunnel_show(m, pd->tunnel);
+-	else
++	} else {
+ 		pppol2tp_seq_session_show(m, pd->session);
++		if (pd->session->deref)
++			pd->session->deref(pd->session);
++		l2tp_session_dec_refcount(pd->session);
++	}
+ 
+ out:
+ 	return 0;
+@@ -1843,4 +1848,4 @@ MODULE_DESCRIPTION("PPP over L2TP over UDP");
+ MODULE_LICENSE("GPL");
+ MODULE_VERSION(PPPOL2TP_DRV_VERSION);
+ MODULE_ALIAS_NET_PF_PROTO(PF_PPPOX, PX_PROTO_OL2TP);
+-MODULE_ALIAS_L2TP_PWTYPE(11);
++MODULE_ALIAS_L2TP_PWTYPE(7);
+diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
+index 8ab0974f4ee2..cb76ff3088e9 100644
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -3702,6 +3702,8 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv
+ 			return -EBUSY;
+ 		if (copy_from_user(&val, optval, sizeof(val)))
+ 			return -EFAULT;
++		if (val > INT_MAX)
++			return -EINVAL;
+ 		po->tp_reserve = val;
+ 		return 0;
+ 	}
+@@ -4247,6 +4249,8 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u,
+ 		rb->frames_per_block = req->tp_block_size / req->tp_frame_size;
+ 		if (unlikely(rb->frames_per_block == 0))
+ 			goto out;
++		if (unlikely(req->tp_block_size > UINT_MAX / req->tp_block_nr))
++			goto out;
+ 		if (unlikely((rb->frames_per_block * req->tp_block_nr) !=
+ 					req->tp_frame_nr))
+ 			goto out;
+diff --git a/net/sctp/socket.c b/net/sctp/socket.c
+index 673442025bfd..14346dccc4fe 100644
+--- a/net/sctp/socket.c
++++ b/net/sctp/socket.c
+@@ -6861,6 +6861,9 @@ int sctp_inet_listen(struct socket *sock, int backlog)
+ 	if (sock->state != SS_UNCONNECTED)
+ 		goto out;
+ 
++	if (!sctp_sstate(sk, LISTENING) && !sctp_sstate(sk, CLOSED))
++		goto out;
++
+ 	/* If backlog is zero, disable listening. */
+ 	if (!backlog) {
+ 		if (sctp_sstate(sk, CLOSED))
+diff --git a/sound/core/seq/seq_lock.c b/sound/core/seq/seq_lock.c
+index 3b693e924db7..12ba83367b1b 100644
+--- a/sound/core/seq/seq_lock.c
++++ b/sound/core/seq/seq_lock.c
+@@ -28,19 +28,16 @@
+ /* wait until all locks are released */
+ void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int line)
+ {
+-	int max_count = 5 * HZ;
++	int warn_count = 5 * HZ;
+ 
+ 	if (atomic_read(lockp) < 0) {
+ 		pr_warn("ALSA: seq_lock: lock trouble [counter = %d] in %s:%d\n", atomic_read(lockp), file, line);
+ 		return;
+ 	}
+ 	while (atomic_read(lockp) > 0) {
+-		if (max_count == 0) {
+-			pr_warn("ALSA: seq_lock: timeout [%d left] in %s:%d\n", atomic_read(lockp), file, line);
+-			break;
+-		}
++		if (warn_count-- == 0)
++			pr_warn("ALSA: seq_lock: waiting [%d left] in %s:%d\n", atomic_read(lockp), file, line);
+ 		schedule_timeout_uninterruptible(1);
+-		max_count--;
+ 	}
+ }
+ 
+diff --git a/sound/firewire/lib.h b/sound/firewire/lib.h
+index f6769312ebfc..c3768cd494a5 100644
+--- a/sound/firewire/lib.h
++++ b/sound/firewire/lib.h
+@@ -45,7 +45,7 @@ struct snd_fw_async_midi_port {
+ 
+ 	struct snd_rawmidi_substream *substream;
+ 	snd_fw_async_midi_port_fill fill;
+-	unsigned int consume_bytes;
++	int consume_bytes;
+ };
+ 
+ int snd_fw_async_midi_port_init(struct snd_fw_async_midi_port *port,
+diff --git a/sound/firewire/oxfw/oxfw.c b/sound/firewire/oxfw/oxfw.c
+index e629b88f7d93..474b06d8acd1 100644
+--- a/sound/firewire/oxfw/oxfw.c
++++ b/sound/firewire/oxfw/oxfw.c
+@@ -226,11 +226,11 @@ static void do_registration(struct work_struct *work)
+ 	if (err < 0)
+ 		goto error;
+ 
+-	err = detect_quirks(oxfw);
++	err = snd_oxfw_stream_discover(oxfw);
+ 	if (err < 0)
+ 		goto error;
+ 
+-	err = snd_oxfw_stream_discover(oxfw);
++	err = detect_quirks(oxfw);
+ 	if (err < 0)
+ 		goto error;
+ 
+diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c
+index 4c8ff298ad26..d5873eeae1aa 100644
+--- a/sound/soc/intel/boards/bytcr_rt5640.c
++++ b/sound/soc/intel/boards/bytcr_rt5640.c
+@@ -621,7 +621,7 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = {
+ 		.codec_dai_name = "snd-soc-dummy-dai",
+ 		.codec_name = "snd-soc-dummy",
+ 		.platform_name = "sst-mfld-platform",
+-		.ignore_suspend = 1,
++		.nonatomic = true,
+ 		.dynamic = 1,
+ 		.dpcm_playback = 1,
+ 		.dpcm_capture = 1,
+@@ -634,7 +634,6 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = {
+ 		.codec_dai_name = "snd-soc-dummy-dai",
+ 		.codec_name = "snd-soc-dummy",
+ 		.platform_name = "sst-mfld-platform",
+-		.ignore_suspend = 1,
+ 		.nonatomic = true,
+ 		.dynamic = 1,
+ 		.dpcm_playback = 1,
+@@ -661,6 +660,7 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = {
+ 						| SND_SOC_DAIFMT_CBS_CFS,
+ 		.be_hw_params_fixup = byt_rt5640_codec_fixup,
+ 		.ignore_suspend = 1,
++		.nonatomic = true,
+ 		.dpcm_playback = 1,
+ 		.dpcm_capture = 1,
+ 		.init = byt_rt5640_init,
+diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c
+index 35f591eab3c9..eabff3a857d0 100644
+--- a/sound/soc/intel/boards/bytcr_rt5651.c
++++ b/sound/soc/intel/boards/bytcr_rt5651.c
+@@ -235,7 +235,6 @@ static struct snd_soc_dai_link byt_rt5651_dais[] = {
+ 		.codec_dai_name = "snd-soc-dummy-dai",
+ 		.codec_name = "snd-soc-dummy",
+ 		.platform_name = "sst-mfld-platform",
+-		.ignore_suspend = 1,
+ 		.nonatomic = true,
+ 		.dynamic = 1,
+ 		.dpcm_playback = 1,
+@@ -249,7 +248,6 @@ static struct snd_soc_dai_link byt_rt5651_dais[] = {
+ 		.codec_dai_name = "snd-soc-dummy-dai",
+ 		.codec_name = "snd-soc-dummy",
+ 		.platform_name = "sst-mfld-platform",
+-		.ignore_suspend = 1,
+ 		.nonatomic = true,
+ 		.dynamic = 1,
+ 		.dpcm_playback = 1,