Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (27 commits)
  af_unix: limit recursion level
  pch_gbe driver: The wrong of initializer entry
  pch_gbe dreiver: chang author
  ucc_geth: fix ucc halt problem in half duplex mode
  inet: Fix __inet_inherit_port() to correctly increment bsockets and num_owners
  ehea: Add some info messages and fix an issue
  hso: fix disable_net
  NET: wan/x25_asy, move lapb_unregister to x25_asy_close_tty
  cxgb4vf: fix setting unicast/multicast addresses ...
  net, ppp: Report correct error code if unit allocation failed
  DECnet: don't leak uninitialized stack byte
  au1000_eth: fix invalid address accessing the MAC enable register
  dccp: fix error in updating the GAR
  tcp: restrict net.ipv4.tcp_adv_win_scale (#20312)
  netns: Don't leak others' openreq-s in proc
  Net: ceph: Makefile: Remove unnessary code
  vhost/net: fix rcu check usage
  econet: fix CVE-2010-3848
  econet: fix CVE-2010-3850
  econet: disallow NULL remote addr for sendmsg(), fixes CVE-2010-3849
  ...

30 files changed, 280 insertions, 203 deletions

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index fe95105992c5..3c5e465296e1 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -144,6 +144,7 @@ tcp_adv_win_scale - INTEGER
 	Count buffering overhead as bytes/2^tcp_adv_win_scale
 	(if tcp_adv_win_scale > 0) or bytes-bytes/2^(-tcp_adv_win_scale),
 	if it is <= 0.
+	Possible values are [-31, 31], inclusive.
 	Default: 2
 
 tcp_allowed_congestion_control - STRING
diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
index 2e847a90bad0..f2b5bab5e6a1 100644
--- a/drivers/isdn/icn/icn.c
+++ b/drivers/isdn/icn/icn.c
@@ -1627,7 +1627,7 @@ __setup("icn=", icn_setup);
 static int __init icn_init(void)
 {
 	char *p;
-	char rev[10];
+	char rev[20];
 
 	memset(&dev, 0, sizeof(icn_dev));
 	dev.memaddr = (membase & 0x0ffc000);
@@ -1637,9 +1637,10 @@ static int __init icn_init(void)
 	spin_lock_init(&dev.devlock);
 
 	if ((p = strchr(revision, ':'))) {
-		strcpy(rev, p + 1);
+		strncpy(rev, p + 1, 20);
 		p = strchr(rev, '$');
-		*p = 0;
+		if (p)
+			*p = 0;
 	} else
 		strcpy(rev, " ??? ");
 	printk(KERN_NOTICE "ICN-ISDN-driver Rev%smem=0x%08lx\n", rev,
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 43db398437b7..4f1755bddf6b 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2543,10 +2543,10 @@ config PCH_GBE
 	depends on PCI
 	select MII
 	---help---
-	  This is a gigabit ethernet driver for Topcliff PCH.
-	  Topcliff PCH is the platform controller hub that is used in Intel's
+	  This is a gigabit ethernet driver for EG20T PCH.
+	  EG20T PCH is the platform controller hub that is used in Intel's
 	  general embedded platform.
-	  Topcliff PCH has Gigabit Ethernet interface.
+	  EG20T PCH has Gigabit Ethernet interface.
 	  Using this interface, it is able to access system devices connected
 	  to Gigabit Ethernet.
 	  This driver enables Gigabit Ethernet function.
diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c
index 43489f89c142..53eff9ba6e95 100644
--- a/drivers/net/au1000_eth.c
+++ b/drivers/net/au1000_eth.c
@@ -155,10 +155,10 @@ static void au1000_enable_mac(struct net_device *dev, int force_reset)
 	spin_lock_irqsave(&aup->lock, flags);
 
 	if (force_reset || (!aup->mac_enabled)) {
-		writel(MAC_EN_CLOCK_ENABLE, &aup->enable);
+		writel(MAC_EN_CLOCK_ENABLE, aup->enable);
 		au_sync_delay(2);
 		writel((MAC_EN_RESET0 | MAC_EN_RESET1 | MAC_EN_RESET2
-				| MAC_EN_CLOCK_ENABLE), &aup->enable);
+				| MAC_EN_CLOCK_ENABLE), aup->enable);
 		au_sync_delay(2);
 
 		aup->mac_enabled = 1;
@@ -503,9 +503,9 @@ static void au1000_reset_mac_unlocked(struct net_device *dev)
 
 	au1000_hard_stop(dev);
 
-	writel(MAC_EN_CLOCK_ENABLE, &aup->enable);
+	writel(MAC_EN_CLOCK_ENABLE, aup->enable);
 	au_sync_delay(2);
-	writel(0, &aup->enable);
+	writel(0, aup->enable);
 	au_sync_delay(2);
 
 	aup->tx_full = 0;
@@ -1119,7 +1119,7 @@ static int __devinit au1000_probe(struct platform_device *pdev)
 	/* set a random MAC now in case platform_data doesn't provide one */
 	random_ether_addr(dev->dev_addr);
 
-	writel(0, &aup->enable);
+	writel(0, aup->enable);
 	aup->mac_enabled = 0;
 
 	pd = pdev->dev.platform_data;
diff --git a/drivers/net/cxgb4vf/cxgb4vf_main.c b/drivers/net/cxgb4vf/cxgb4vf_main.c
index c3449bbc585a..d887a76cd39d 100644
--- a/drivers/net/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/cxgb4vf/cxgb4vf_main.c
@@ -816,40 +816,48 @@ static struct net_device_stats *cxgb4vf_get_stats(struct net_device *dev)
 }
 
 /*
- * Collect up to maxaddrs worth of a netdevice's unicast addresses into an
- * array of addrss pointers and return the number collected.
+ * Collect up to maxaddrs worth of a netdevice's unicast addresses, starting
+ * at a specified offset within the list, into an array of addrss pointers and
+ * return the number collected.
  */
-static inline int collect_netdev_uc_list_addrs(const struct net_device *dev,
-					       const u8 **addr,
-					       unsigned int maxaddrs)
+static inline unsigned int collect_netdev_uc_list_addrs(const struct net_device *dev,
+							const u8 **addr,
+							unsigned int offset,
+							unsigned int maxaddrs)
 {
+	unsigned int index = 0;
 	unsigned int naddr = 0;
 	const struct netdev_hw_addr *ha;
 
-	for_each_dev_addr(dev, ha) {
-		addr[naddr++] = ha->addr;
-		if (naddr >= maxaddrs)
-			break;
-	}
+	for_each_dev_addr(dev, ha)
+		if (index++ >= offset) {
+			addr[naddr++] = ha->addr;
+			if (naddr >= maxaddrs)
+				break;
+		}
 	return naddr;
 }
 
 /*
- * Collect up to maxaddrs worth of a netdevice's multicast addresses into an
- * array of addrss pointers and return the number collected.
+ * Collect up to maxaddrs worth of a netdevice's multicast addresses, starting
+ * at a specified offset within the list, into an array of addrss pointers and
+ * return the number collected.
  */
-static inline int collect_netdev_mc_list_addrs(const struct net_device *dev,
-					       const u8 **addr,
-					       unsigned int maxaddrs)
+static inline unsigned int collect_netdev_mc_list_addrs(const struct net_device *dev,
+							const u8 **addr,
+							unsigned int offset,
+							unsigned int maxaddrs)
 {
+	unsigned int index = 0;
 	unsigned int naddr = 0;
 	const struct netdev_hw_addr *ha;
 
-	netdev_for_each_mc_addr(ha, dev) {
-		addr[naddr++] = ha->addr;
-		if (naddr >= maxaddrs)
-			break;
-	}
+	netdev_for_each_mc_addr(ha, dev)
+		if (index++ >= offset) {
+			addr[naddr++] = ha->addr;
+			if (naddr >= maxaddrs)
+				break;
+		}
 	return naddr;
 }
 
@@ -862,16 +870,20 @@ static int set_addr_filters(const struct net_device *dev, bool sleep)
 	u64 mhash = 0;
 	u64 uhash = 0;
 	bool free = true;
-	u16 filt_idx[7];
+	unsigned int offset, naddr;
 	const u8 *addr[7];
-	int ret, naddr = 0;
+	int ret;
 	const struct port_info *pi = netdev_priv(dev);
 
 	/* first do the secondary unicast addresses */
-	naddr = collect_netdev_uc_list_addrs(dev, addr, ARRAY_SIZE(addr));
-	if (naddr > 0) {
+	for (offset = 0; ; offset += naddr) {
+		naddr = collect_netdev_uc_list_addrs(dev, addr, offset,
+						     ARRAY_SIZE(addr));
+		if (naddr == 0)
+			break;
+
 		ret = t4vf_alloc_mac_filt(pi->adapter, pi->viid, free,
-					  naddr, addr, filt_idx, &uhash, sleep);
+					  naddr, addr, NULL, &uhash, sleep);
 		if (ret < 0)
 			return ret;
 
@@ -879,12 +891,17 @@ static int set_addr_filters(const struct net_device *dev, bool sleep)
 	}
 
 	/* next set up the multicast addresses */
-	naddr = collect_netdev_mc_list_addrs(dev, addr, ARRAY_SIZE(addr));
-	if (naddr > 0) {
+	for (offset = 0; ; offset += naddr) {
+		naddr = collect_netdev_mc_list_addrs(dev, addr, offset,
+						     ARRAY_SIZE(addr));
+		if (naddr == 0)
+			break;
+
 		ret = t4vf_alloc_mac_filt(pi->adapter, pi->viid, free,
-					  naddr, addr, filt_idx, &mhash, sleep);
+					  naddr, addr, NULL, &mhash, sleep);
 		if (ret < 0)
 			return ret;
+		free = false;
 	}
 
 	return t4vf_set_addr_hash(pi->adapter, pi->viid, uhash != 0,
diff --git a/drivers/net/cxgb4vf/t4vf_hw.c b/drivers/net/cxgb4vf/t4vf_hw.c
index e306c20dfaee..19520afe1a12 100644
--- a/drivers/net/cxgb4vf/t4vf_hw.c
+++ b/drivers/net/cxgb4vf/t4vf_hw.c
@@ -1014,48 +1014,72 @@ int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free,
 			unsigned int naddr, const u8 **addr, u16 *idx,
 			u64 *hash, bool sleep_ok)
 {
-	int i, ret;
+	int offset, ret = 0;
+	unsigned nfilters = 0;
+	unsigned int rem = naddr;
 	struct fw_vi_mac_cmd cmd, rpl;
-	struct fw_vi_mac_exact *p;
-	size_t len16;
 
-	if (naddr > ARRAY_SIZE(cmd.u.exact))
+	if (naddr > FW_CLS_TCAM_NUM_ENTRIES)
 		return -EINVAL;
-	len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
-				      u.exact[naddr]), 16);
 
-	memset(&cmd, 0, sizeof(cmd));
-	cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) |
-				     FW_CMD_REQUEST |
-				     FW_CMD_WRITE |
-				     (free ? FW_CMD_EXEC : 0) |
-				     FW_VI_MAC_CMD_VIID(viid));
-	cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_FREEMACS(free) |
-					    FW_CMD_LEN16(len16));
+	for (offset = 0; offset < naddr; /**/) {
+		unsigned int fw_naddr = (rem < ARRAY_SIZE(cmd.u.exact)
+					 ? rem
+					 : ARRAY_SIZE(cmd.u.exact));
+		size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
+						     u.exact[fw_naddr]), 16);
+		struct fw_vi_mac_exact *p;
+		int i;
 
-	for (i = 0, p = cmd.u.exact; i < naddr; i++, p++) {
-		p->valid_to_idx =
-			cpu_to_be16(FW_VI_MAC_CMD_VALID |
-				    FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC));
-		memcpy(p->macaddr, addr[i], sizeof(p->macaddr));
-	}
+		memset(&cmd, 0, sizeof(cmd));
+		cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) |
+					     FW_CMD_REQUEST |
+					     FW_CMD_WRITE |
+					     (free ? FW_CMD_EXEC : 0) |
+					     FW_VI_MAC_CMD_VIID(viid));
+		cmd.freemacs_to_len16 =
+			cpu_to_be32(FW_VI_MAC_CMD_FREEMACS(free) |
+				    FW_CMD_LEN16(len16));
+
+		for (i = 0, p = cmd.u.exact; i < fw_naddr; i++, p++) {
+			p->valid_to_idx = cpu_to_be16(
+				FW_VI_MAC_CMD_VALID |
+				FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC));
+			memcpy(p->macaddr, addr[offset+i], sizeof(p->macaddr));
+		}
+
+
+		ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &rpl,
+					sleep_ok);
+		if (ret && ret != -ENOMEM)
+			break;
 
-	ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &rpl, sleep_ok);
-	if (ret)
-		return ret;
-
-	for (i = 0, p = rpl.u.exact; i < naddr; i++, p++) {
-		u16 index = FW_VI_MAC_CMD_IDX_GET(be16_to_cpu(p->valid_to_idx));
-
-		if (idx)
-			idx[i] = (index >= FW_CLS_TCAM_NUM_ENTRIES
-				  ? 0xffff
-				  : index);
-		if (index < FW_CLS_TCAM_NUM_ENTRIES)
-			ret++;
-		else if (hash)
-			*hash |= (1 << hash_mac_addr(addr[i]));
+		for (i = 0, p = rpl.u.exact; i < fw_naddr; i++, p++) {
+			u16 index = FW_VI_MAC_CMD_IDX_GET(
+				be16_to_cpu(p->valid_to_idx));
+
+			if (idx)
+				idx[offset+i] =
+					(index >= FW_CLS_TCAM_NUM_ENTRIES
+					 ? 0xffff
+					 : index);
+			if (index < FW_CLS_TCAM_NUM_ENTRIES)
+				nfilters++;
+			else if (hash)
+				*hash |= (1ULL << hash_mac_addr(addr[offset+i]));
+		}
+
+		free = false;
+		offset += fw_naddr;
+		rem -= fw_naddr;
 	}
+
+	/*
+	 * If there were no errors or we merely ran out of room in our MAC
+	 * address arena, return the number of filters actually written.
+	 */
+	if (ret == 0 || ret == -ENOMEM)
+		ret = nfilters;
 	return ret;
 }
 
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index 182b2a7be8dc..3d0af08483a1 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -400,6 +400,7 @@ static void ehea_refill_rq1(struct ehea_port_res *pr, int index, int nr_of_wqes)
 			skb_arr_rq1[index] = netdev_alloc_skb(dev,
 							      EHEA_L_PKT_SIZE);
 			if (!skb_arr_rq1[index]) {
+				ehea_info("Unable to allocate enough skb in the array\n");
 				pr->rq1_skba.os_skbs = fill_wqes - i;
 				break;
 			}
@@ -422,13 +423,20 @@ static void ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a)
 	struct net_device *dev = pr->port->netdev;
 	int i;
 
-	for (i = 0; i < pr->rq1_skba.len; i++) {
+	if (nr_rq1a > pr->rq1_skba.len) {
+		ehea_error("NR_RQ1A bigger than skb array len\n");
+		return;
+	}
+
+	for (i = 0; i < nr_rq1a; i++) {
 		skb_arr_rq1[i] = netdev_alloc_skb(dev, EHEA_L_PKT_SIZE);
-		if (!skb_arr_rq1[i])
+		if (!skb_arr_rq1[i]) {
+			ehea_info("No enough memory to allocate skb array\n");
 			break;
+		}
 	}
 	/* Ring doorbell */
-	ehea_update_rq1a(pr->qp, nr_rq1a);
+	ehea_update_rq1a(pr->qp, i);
 }
 
 static int ehea_refill_rq_def(struct ehea_port_res *pr,
@@ -735,8 +743,10 @@ static int ehea_proc_rwqes(struct net_device *dev,
 
 					skb = netdev_alloc_skb(dev,
 							       EHEA_L_PKT_SIZE);
-					if (!skb)
+					if (!skb) {
+						ehea_info("Not enough memory to allocate skb\n");
 						break;
+					}
 				}
 				skb_copy_to_linear_data(skb, ((char *)cqe) + 64,
 						 cqe->num_bytes_transfered - 4);
diff --git a/drivers/net/pch_gbe/pch_gbe_main.c b/drivers/net/pch_gbe/pch_gbe_main.c
index 472056b47440..03a1d280105f 100644
--- a/drivers/net/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/pch_gbe/pch_gbe_main.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 1999 - 2010 Intel Corporation.
- * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
+ * Copyright (C) 2010 OKI SEMICONDUCTOR CO., LTD.
  *
  * This code was derived from the Intel e1000e Linux driver.
  *
@@ -2464,8 +2464,8 @@ static void __exit pch_gbe_exit_module(void)
 module_init(pch_gbe_init_module);
 module_exit(pch_gbe_exit_module);
 
-MODULE_DESCRIPTION("OKI semiconductor PCH Gigabit ethernet Driver");
-MODULE_AUTHOR("OKI semiconductor, <masa-korg@dsn.okisemi.com>");
+MODULE_DESCRIPTION("EG20T PCH Gigabit ethernet Driver");
+MODULE_AUTHOR("OKI SEMICONDUCTOR, <toshiharu-linux@dsn.okisemi.com>");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 MODULE_DEVICE_TABLE(pci, pch_gbe_pcidev_id);
diff --git a/drivers/net/pch_gbe/pch_gbe_param.c b/drivers/net/pch_gbe/pch_gbe_param.c
index 2510146fc560..ef0996a0eaaa 100644
--- a/drivers/net/pch_gbe/pch_gbe_param.c
+++ b/drivers/net/pch_gbe/pch_gbe_param.c
@@ -434,8 +434,8 @@ void pch_gbe_check_options(struct pch_gbe_adapter *adapter)
 			.err  = "using default of "
 				__MODULE_STRING(PCH_GBE_DEFAULT_TXD),
 			.def  = PCH_GBE_DEFAULT_TXD,
-			.arg  = { .r = { .min = PCH_GBE_MIN_TXD } },
-			.arg  = { .r = { .max = PCH_GBE_MAX_TXD } }
+			.arg  = { .r = { .min = PCH_GBE_MIN_TXD,
+					 .max = PCH_GBE_MAX_TXD } }
 		};
 		struct pch_gbe_tx_ring *tx_ring = adapter->tx_ring;
 		tx_ring->count = TxDescriptors;
@@ -450,8 +450,8 @@ void pch_gbe_check_options(struct pch_gbe_adapter *adapter)
 			.err  = "using default of "
 				__MODULE_STRING(PCH_GBE_DEFAULT_RXD),
 			.def  = PCH_GBE_DEFAULT_RXD,
-			.arg  = { .r = { .min = PCH_GBE_MIN_RXD } },
-			.arg  = { .r = { .max = PCH_GBE_MAX_RXD } }
+			.arg  = { .r = { .min = PCH_GBE_MIN_RXD,
+					 .max = PCH_GBE_MAX_RXD } }
 		};
 		struct pch_gbe_rx_ring *rx_ring = adapter->rx_ring;
 		rx_ring->count = RxDescriptors;
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 09cf56d0416a..39659976a1ac 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -2584,16 +2584,16 @@ ppp_create_interface(struct net *net, int unit, int *retp)
 	 */
 	dev_net_set(dev, net);
 
-	ret = -EEXIST;
 	mutex_lock(&pn->all_ppp_mutex);
 
 	if (unit < 0) {
 		unit = unit_get(&pn->units_idr, ppp);
 		if (unit < 0) {
-			*retp = unit;
+			ret = unit;
 			goto out2;
 		}
 	} else {
+		ret = -EEXIST;
 		if (unit_find(&pn->units_idr, unit))
 			goto out2; /* unit already exists */
 		/*
@@ -2668,10 +2668,10 @@ static void ppp_shutdown_interface(struct ppp *ppp)
 		ppp->closing = 1;
 		ppp_unlock(ppp);
 		unregister_netdev(ppp->dev);
+		unit_put(&pn->units_idr, ppp->file.index);
 	} else
 		ppp_unlock(ppp);
 
-	unit_put(&pn->units_idr, ppp->file.index);
 	ppp->file.dead = 1;
 	ppp->owner = NULL;
 	wake_up_interruptible(&ppp->file.rwait);
@@ -2859,8 +2859,7 @@ static void __exit ppp_cleanup(void)
  * by holding all_ppp_mutex
  */
 
-/* associate pointer with specified number */
-static int unit_set(struct idr *p, void *ptr, int n)
+static int __unit_alloc(struct idr *p, void *ptr, int n)
 {
 	int unit, err;
 
@@ -2871,10 +2870,24 @@ again:
 	}
 
 	err = idr_get_new_above(p, ptr, n, &unit);
-	if (err == -EAGAIN)
-		goto again;
+	if (err < 0) {
+		if (err == -EAGAIN)
+			goto again;
+		return err;
+	}
+
+	return unit;
+}
+
+/* associate pointer with specified number */
+static int unit_set(struct idr *p, void *ptr, int n)
+{
+	int unit;
 
-	if (unit != n) {
+	unit = __unit_alloc(p, ptr, n);
+	if (unit < 0)
+		return unit;
+	else if (unit != n) {
 		idr_remove(p, unit);
 		return -EINVAL;
 	}
@@ -2885,19 +2898,7 @@ again:
 /* get new free unit number and associate pointer with it */
 static int unit_get(struct idr *p, void *ptr)
 {
-	int unit, err;
-
-again:
-	if (!idr_pre_get(p, GFP_KERNEL)) {
-		printk(KERN_ERR "PPP: No free memory for idr\n");
-		return -ENOMEM;
-	}
-
-	err = idr_get_new_above(p, ptr, 0, &unit);
-	if (err == -EAGAIN)
-		goto again;
-
-	return unit;
+	return __unit_alloc(p, ptr, 0);
 }
 
 /* put unit number back to a pool */
diff --git a/drivers/net/ucc_geth.h b/drivers/net/ucc_geth.h
index 05a95586f3c5..055b87ab4f07 100644
--- a/drivers/net/ucc_geth.h
+++ b/drivers/net/ucc_geth.h
@@ -899,7 +899,8 @@ struct ucc_geth_hardware_statistics {
 #define UCC_GETH_UTFS_INIT                      512	/* Tx virtual FIFO size
 							 */
 #define UCC_GETH_UTFET_INIT                     256	/* 1/2 utfs */
-#define UCC_GETH_UTFTT_INIT                     512
+#define UCC_GETH_UTFTT_INIT                     256	/* 1/2 utfs
+							   due to errata */
 /* Gigabit Ethernet (1000 Mbps) */
 #define UCC_GETH_URFS_GIGA_INIT                 4096/*2048*/	/* Rx virtual
 								   FIFO size */
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index b154a94de03e..62e9e8dc8190 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2994,12 +2994,14 @@ static int hso_probe(struct usb_interface *interface,
 
 	case HSO_INTF_BULK:
 		/* It's a regular bulk interface */
-		if (((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) &&
-		    !disable_net)
-			hso_dev = hso_create_net_device(interface, port_spec);
-		else
+		if ((port_spec & HSO_PORT_MASK) == HSO_PORT_NETWORK) {
+			if (!disable_net)
+				hso_dev =
+				    hso_create_net_device(interface, port_spec);
+		} else {
 			hso_dev =
 			    hso_create_bulk_serial_device(interface, port_spec);
+		}
 		if (!hso_dev)
 			goto exit;
 		break;
diff --git a/drivers/net/wan/x25_asy.c b/drivers/net/wan/x25_asy.c
index d81ad8397885..cf05504d9511 100644
--- a/drivers/net/wan/x25_asy.c
+++ b/drivers/net/wan/x25_asy.c
@@ -498,7 +498,6 @@ norbuff:
 static int x25_asy_close(struct net_device *dev)
 {
 	struct x25_asy *sl = netdev_priv(dev);
-	int err;
 
 	spin_lock(&sl->lock);
 	if (sl->tty)
@@ -507,10 +506,6 @@ static int x25_asy_close(struct net_device *dev)
 	netif_stop_queue(dev);
 	sl->rcount = 0;
 	sl->xleft  = 0;
-	err = lapb_unregister(dev);
-	if (err != LAPB_OK)
-		printk(KERN_ERR "x25_asy_close: lapb_unregister error -%d\n",
-			err);
 	spin_unlock(&sl->lock);
 	return 0;
 }
@@ -595,6 +590,7 @@ static int x25_asy_open_tty(struct tty_struct *tty)
 static void x25_asy_close_tty(struct tty_struct *tty)
 {
 	struct x25_asy *sl = tty->disc_data;
+	int err;
 
 	/* First make sure we're connected. */
 	if (!sl || sl->magic != X25_ASY_MAGIC)
@@ -605,6 +601,11 @@ static void x25_asy_close_tty(struct tty_struct *tty)
 		dev_close(sl->dev);
 	rtnl_unlock();
 
+	err = lapb_unregister(sl->dev);
+	if (err != LAPB_OK)
+		printk(KERN_ERR "x25_asy_close: lapb_unregister error -%d\n",
+			err);
+
 	tty->disc_data = NULL;
 	sl->tty = NULL;
 	x25_asy_free(sl);
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index c76ea53c20ce..1a62e351ec77 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -518,7 +518,7 @@ bool ath_stoprecv(struct ath_softc *sc)
 	bool stopped;
 
 	spin_lock_bh(&sc->rx.rxbuflock);
-	ath9k_hw_stoppcurecv(ah);
+	ath9k_hw_abortpcurecv(ah);
 	ath9k_hw_setrxfilter(ah, 0);
 	stopped = ath9k_hw_stopdmarecv(ah);
 
diff --git a/drivers/net/wireless/ath/carl9170/main.c b/drivers/net/wireless/ath/carl9170/main.c
index 980ae70ea424..a314c2c2bfbe 100644
--- a/drivers/net/wireless/ath/carl9170/main.c
+++ b/drivers/net/wireless/ath/carl9170/main.c
@@ -647,7 +647,7 @@ init:
 	}
 
 unlock:
-	if (err && (vif_id != -1)) {
+	if (err && (vif_id >= 0)) {
 		vif_priv->active = false;
 		bitmap_release_region(&ar->vif_bitmap, vif_id, 0);
 		ar->vifs--;
diff --git a/drivers/net/wireless/b43/sdio.c b/drivers/net/wireless/b43/sdio.c
index 9a55338d957f..09e2dfd7b175 100644
--- a/drivers/net/wireless/b43/sdio.c
+++ b/drivers/net/wireless/b43/sdio.c
@@ -163,6 +163,7 @@ static int b43_sdio_probe(struct sdio_func *func,
 err_free_ssb:
 	kfree(sdio);
 err_disable_func:
+	sdio_claim_host(func);
 	sdio_disable_func(func);
 err_release_host:
 	sdio_release_host(func);
diff --git a/drivers/ssb/b43_pci_bridge.c b/drivers/ssb/b43_pci_bridge.c
index ef9c6a04ad8f..744d3f6e4709 100644
--- a/drivers/ssb/b43_pci_bridge.c
+++ b/drivers/ssb/b43_pci_bridge.c
@@ -24,6 +24,7 @@ static const struct pci_device_id b43_pci_bridge_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4312) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4315) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4318) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_BCM_GVC,  0x4318) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4319) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4320) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4321) },
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 4b4da5b86ff9..f442668a1e52 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -129,8 +129,9 @@ static void handle_tx(struct vhost_net *net)
 	size_t hdr_size;
 	struct socket *sock;
 
-	sock = rcu_dereference_check(vq->private_data,
-				     lockdep_is_held(&vq->mutex));
+	/* TODO: check that we are running from vhost_worker?
+	 * Not sure it's worth it, it's straight-forward enough. */
+	sock = rcu_dereference_check(vq->private_data, 1);
 	if (!sock)
 		return;
 
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index d369b533dc2a..cb845c16ad7d 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -2047,6 +2047,7 @@
 #define PCI_DEVICE_ID_AFAVLAB_P030	0x2182
 #define PCI_SUBDEVICE_ID_AFAVLAB_P061		0x2150
 
+#define PCI_VENDOR_ID_BCM_GVC          0x14a4
 #define PCI_VENDOR_ID_BROADCOM		0x14e4
 #define PCI_DEVICE_ID_TIGON3_5752	0x1600
 #define PCI_DEVICE_ID_TIGON3_5752M	0x1601
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index 90c9e2872f27..18e5c3f67580 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -10,6 +10,7 @@ extern void unix_inflight(struct file *fp);
 extern void unix_notinflight(struct file *fp);
 extern void unix_gc(void);
 extern void wait_for_unix_gc(void);
+extern struct sock *unix_get_socket(struct file *filp);
 
 #define UNIX_HASH_SIZE	256
 
@@ -56,6 +57,7 @@ struct unix_sock {
 	spinlock_t		lock;
 	unsigned int		gc_candidate : 1;
 	unsigned int		gc_maybe_cycle : 1;
+	unsigned char		recursion_level;
 	struct socket_wq	peer_wq;
 };
 #define unix_sk(__sk) ((struct unix_sock *)__sk)
diff --git a/net/ceph/Makefile b/net/ceph/Makefile
index aab1cabb8035..5f19415ec9c0 100644
--- a/net/ceph/Makefile
+++ b/net/ceph/Makefile
@@ -1,9 +1,6 @@
 #
 # Makefile for CEPH filesystem.
 #
-
-ifneq ($(KERNELRELEASE),)
-
 obj-$(CONFIG_CEPH_LIB) += libceph.o
 
 libceph-objs := ceph_common.o messenger.o msgpool.o buffer.o pagelist.o \
@@ -16,22 +13,3 @@ libceph-objs := ceph_common.o messenger.o msgpool.o buffer.o pagelist.o \
 	ceph_fs.o ceph_strings.o ceph_hash.o \
 	pagevec.o
 
-else
-#Otherwise we were called directly from the command
-# line; invoke the kernel build system.
-
-KERNELDIR ?= /lib/modules/$(shell uname -r)/build
-PWD := $(shell pwd)
-
-default: all
-
-all:
-	$(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_CEPH_LIB=m modules
-
-modules_install:
-	$(MAKE) -C $(KERNELDIR) M=$(PWD) CONFIG_CEPH_LIB=m modules_install
-
-clean:
-	$(MAKE) -C $(KERNELDIR) M=$(PWD) clean
-
-endif
diff --git a/net/dccp/input.c b/net/dccp/input.c
index 265985370fa1..e424a09e83f6 100644
--- a/net/dccp/input.c
+++ b/net/dccp/input.c
@@ -239,7 +239,8 @@ static int dccp_check_seqno(struct sock *sk, struct sk_buff *skb)
 		dccp_update_gsr(sk, seqno);
 
 		if (dh->dccph_type != DCCP_PKT_SYNC &&
-		    (ackno != DCCP_PKT_WITHOUT_ACK_SEQ))
+		    ackno != DCCP_PKT_WITHOUT_ACK_SEQ &&
+		    after48(ackno, dp->dccps_gar))
 			dp->dccps_gar = ackno;
 	} else {
 		unsigned long now = jiffies;
diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c
index a76b78de679f..6f97268ed85f 100644
--- a/net/decnet/af_decnet.c
+++ b/net/decnet/af_decnet.c
@@ -1556,6 +1556,8 @@ static int __dn_getsockopt(struct socket *sock, int level,int optname, char __us
 			if (r_len > sizeof(struct linkinfo_dn))
 				r_len = sizeof(struct linkinfo_dn);
 
+			memset(&link, 0, sizeof(link));
+
 			switch(sock->state) {
 				case SS_CONNECTING:
 					link.idn_linkstate = LL_CONNECTING;
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index f8c1ae4b41f0..13992e1d2726 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -31,6 +31,7 @@
 #include <linux/skbuff.h>
 #include <linux/udp.h>
 #include <linux/slab.h>
+#include <linux/vmalloc.h>
 #include <net/sock.h>
 #include <net/inet_common.h>
 #include <linux/stat.h>
@@ -276,12 +277,12 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 #endif
 #ifdef CONFIG_ECONET_AUNUDP
 	struct msghdr udpmsg;
-	struct iovec iov[msg->msg_iovlen+1];
+	struct iovec iov[2];
 	struct aunhdr ah;
 	struct sockaddr_in udpdest;
 	__kernel_size_t size;
-	int i;
 	mm_segment_t oldfs;
+	char *userbuf;
 #endif
 
 	/*
@@ -297,23 +298,14 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 	mutex_lock(&econet_mutex);
 
-	if (saddr == NULL) {
-		struct econet_sock *eo = ec_sk(sk);
-
-		addr.station = eo->station;
-		addr.net     = eo->net;
-		port	     = eo->port;
-		cb	     = eo->cb;
-	} else {
-		if (msg->msg_namelen < sizeof(struct sockaddr_ec)) {
-			mutex_unlock(&econet_mutex);
-			return -EINVAL;
-		}
-		addr.station = saddr->addr.station;
-		addr.net = saddr->addr.net;
-		port = saddr->port;
-		cb = saddr->cb;
-	}
+        if (saddr == NULL || msg->msg_namelen < sizeof(struct sockaddr_ec)) {
+                mutex_unlock(&econet_mutex);
+                return -EINVAL;
+        }
+        addr.station = saddr->addr.station;
+        addr.net = saddr->addr.net;
+        port = saddr->port;
+        cb = saddr->cb;
 
 	/* Look for a device with the right network number. */
 	dev = net2dev_map[addr.net];
@@ -328,17 +320,17 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 		}
 	}
 
-	if (len + 15 > dev->mtu) {
-		mutex_unlock(&econet_mutex);
-		return -EMSGSIZE;
-	}
-
 	if (dev->type == ARPHRD_ECONET) {
 		/* Real hardware Econet.  We're not worthy etc. */
 #ifdef CONFIG_ECONET_NATIVE
 		unsigned short proto = 0;
 		int res;
 
+		if (len + 15 > dev->mtu) {
+			mutex_unlock(&econet_mutex);
+			return -EMSGSIZE;
+		}
+
 		dev_hold(dev);
 
 		skb = sock_alloc_send_skb(sk, len+LL_ALLOCATED_SPACE(dev),
@@ -351,7 +343,6 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 		eb = (struct ec_cb *)&skb->cb;
 
-		/* BUG: saddr may be NULL */
 		eb->cookie = saddr->cookie;
 		eb->sec = *saddr;
 		eb->sent = ec_tx_done;
@@ -415,6 +406,11 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 		return -ENETDOWN;		/* No socket - can't send */
 	}
 
+	if (len > 32768) {
+		err = -E2BIG;
+		goto error;
+	}
+
 	/* Make up a UDP datagram and hand it off to some higher intellect. */
 
 	memset(&udpdest, 0, sizeof(udpdest));
@@ -446,36 +442,26 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 	/* tack our header on the front of the iovec */
 	size = sizeof(struct aunhdr);
-	/*
-	 * XXX: that is b0rken.  We can't mix userland and kernel pointers
-	 * in iovec, since on a lot of platforms copy_from_user() will
-	 * *not* work with the kernel and userland ones at the same time,
-	 * regardless of what we do with set_fs().  And we are talking about
-	 * econet-over-ethernet here, so "it's only ARM anyway" doesn't
-	 * apply.  Any suggestions on fixing that code?		-- AV
-	 */
 	iov[0].iov_base = (void *)&ah;
 	iov[0].iov_len = size;
-	for (i = 0; i < msg->msg_iovlen; i++) {
-		void __user *base = msg->msg_iov[i].iov_base;
-		size_t iov_len = msg->msg_iov[i].iov_len;
-		/* Check it now since we switch to KERNEL_DS later. */
-		if (!access_ok(VERIFY_READ, base, iov_len)) {
-			mutex_unlock(&econet_mutex);
-			return -EFAULT;
-		}
-		iov[i+1].iov_base = base;
-		iov[i+1].iov_len = iov_len;
-		size += iov_len;
+
+	userbuf = vmalloc(len);
+	if (userbuf == NULL) {
+		err = -ENOMEM;
+		goto error;
 	}
 
+	iov[1].iov_base = userbuf;
+	iov[1].iov_len = len;
+	err = memcpy_fromiovec(userbuf, msg->msg_iov, len);
+	if (err)
+		goto error_free_buf;
+
 	/* Get a skbuff (no data, just holds our cb information) */
 	if ((skb = sock_alloc_send_skb(sk, 0,
 				       msg->msg_flags & MSG_DONTWAIT,
-				       &err)) == NULL) {
-		mutex_unlock(&econet_mutex);
-		return err;
-	}
+				       &err)) == NULL)
+		goto error_free_buf;
 
 	eb = (struct ec_cb *)&skb->cb;
 
@@ -491,7 +477,7 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 	udpmsg.msg_name = (void *)&udpdest;
 	udpmsg.msg_namelen = sizeof(udpdest);
 	udpmsg.msg_iov = &iov[0];
-	udpmsg.msg_iovlen = msg->msg_iovlen + 1;
+	udpmsg.msg_iovlen = 2;
 	udpmsg.msg_control = NULL;
 	udpmsg.msg_controllen = 0;
 	udpmsg.msg_flags=0;
@@ -499,9 +485,13 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
 	oldfs = get_fs(); set_fs(KERNEL_DS);	/* More privs :-) */
 	err = sock_sendmsg(udpsock, &udpmsg, size);
 	set_fs(oldfs);
+
+error_free_buf:
+	vfree(userbuf);
 #else
 	err = -EPROTOTYPE;
 #endif
+	error:
 	mutex_unlock(&econet_mutex);
 
 	return err;
@@ -671,6 +661,9 @@ static int ec_dev_ioctl(struct socket *sock, unsigned int cmd, void __user *arg)
 	err = 0;
 	switch (cmd) {
 	case SIOCSIFADDR:
+		if (!capable(CAP_NET_ADMIN))
+			return -EPERM;
+
 		edev = dev->ec_ptr;
 		if (edev == NULL) {
 			/* Magic up a new one. */
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 1b344f30b463..3c0369a3a663 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -133,8 +133,7 @@ int __inet_inherit_port(struct sock *sk, struct sock *child)
 			}
 		}
 	}
-	sk_add_bind_node(child, &tb->owners);
-	inet_csk(child)->icsk_bind_hash = tb;
+	inet_bind_hash(child, tb, port);
 	spin_unlock(&head->lock);
 
 	return 0;
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index e91911d7aae2..1b4ec21497a4 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -26,6 +26,8 @@ static int zero;
 static int tcp_retr1_max = 255;
 static int ip_local_port_range_min[] = { 1, 1 };
 static int ip_local_port_range_max[] = { 65535, 65535 };
+static int tcp_adv_win_scale_min = -31;
+static int tcp_adv_win_scale_max = 31;
 
 /* Update system visible IP port range */
 static void set_local_port_range(int range[2])
@@ -426,7 +428,9 @@ static struct ctl_table ipv4_table[] = {
 		.data		= &sysctl_tcp_adv_win_scale,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &tcp_adv_win_scale_min,
+		.extra2		= &tcp_adv_win_scale_max,
 	},
 	{
 		.procname	= "tcp_tw_reuse",
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 081419969485..f15c36a706ec 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2246,7 +2246,7 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
 		/* Values greater than interface MTU won't take effect. However
 		 * at the point when this call is done we typically don't yet
 		 * know which interface is going to be used */
-		if (val < 64 || val > MAX_TCP_WINDOW) {
+		if (val < TCP_MIN_MSS || val > MAX_TCP_WINDOW) {
 			err = -EINVAL;
 			break;
 		}
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 69ccbc1dde9c..e13da6de1fc7 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2043,7 +2043,9 @@ get_req:
 	}
 get_sk:
 	sk_nulls_for_each_from(sk, node) {
-		if (sk->sk_family == st->family && net_eq(sock_net(sk), net)) {
+		if (!net_eq(sock_net(sk), net))
+			continue;
+		if (sk->sk_family == st->family) {
 			cur = sk;
 			goto out;
 		}
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 3c95304a0817..2268e6798124 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1343,9 +1343,25 @@ static void unix_destruct_scm(struct sk_buff *skb)
 	sock_wfree(skb);
 }
 
+#define MAX_RECURSION_LEVEL 4
+
 static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
 {
 	int i;
+	unsigned char max_level = 0;
+	int unix_sock_count = 0;
+
+	for (i = scm->fp->count - 1; i >= 0; i--) {
+		struct sock *sk = unix_get_socket(scm->fp->fp[i]);
+
+		if (sk) {
+			unix_sock_count++;
+			max_level = max(max_level,
+					unix_sk(sk)->recursion_level);
+		}
+	}
+	if (unlikely(max_level > MAX_RECURSION_LEVEL))
+		return -ETOOMANYREFS;
 
 	/*
 	 * Need to duplicate file references for the sake of garbage
@@ -1356,9 +1372,11 @@ static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb)
 	if (!UNIXCB(skb).fp)
 		return -ENOMEM;
 
-	for (i = scm->fp->count-1; i >= 0; i--)
-		unix_inflight(scm->fp->fp[i]);
-	return 0;
+	if (unix_sock_count) {
+		for (i = scm->fp->count - 1; i >= 0; i--)
+			unix_inflight(scm->fp->fp[i]);
+	}
+	return max_level;
 }
 
 static int unix_scm_to_skb(struct scm_cookie *scm, struct sk_buff *skb, bool send_fds)
@@ -1393,6 +1411,7 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
 	struct sk_buff *skb;
 	long timeo;
 	struct scm_cookie tmp_scm;
+	int max_level;
 
 	if (NULL == siocb->scm)
 		siocb->scm = &tmp_scm;
@@ -1431,8 +1450,9 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock,
 		goto out;
 
 	err = unix_scm_to_skb(siocb->scm, skb, true);
-	if (err)
+	if (err < 0)
 		goto out_free;
+	max_level = err + 1;
 	unix_get_secdata(siocb->scm, skb);
 
 	skb_reset_transport_header(skb);
@@ -1514,6 +1534,8 @@ restart:
 	if (sock_flag(other, SOCK_RCVTSTAMP))
 		__net_timestamp(skb);
 	skb_queue_tail(&other->sk_receive_queue, skb);
+	if (max_level > unix_sk(other)->recursion_level)
+		unix_sk(other)->recursion_level = max_level;
 	unix_state_unlock(other);
 	other->sk_data_ready(other, len);
 	sock_put(other);
@@ -1544,6 +1566,7 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
 	int sent = 0;
 	struct scm_cookie tmp_scm;
 	bool fds_sent = false;
+	int max_level;
 
 	if (NULL == siocb->scm)
 		siocb->scm = &tmp_scm;
@@ -1607,10 +1630,11 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
 
 		/* Only send the fds in the first buffer */
 		err = unix_scm_to_skb(siocb->scm, skb, !fds_sent);
-		if (err) {
+		if (err < 0) {
 			kfree_skb(skb);
 			goto out_err;
 		}
+		max_level = err + 1;
 		fds_sent = true;
 
 		err = memcpy_fromiovec(skb_put(skb, size), msg->msg_iov, size);
@@ -1626,6 +1650,8 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock,
 			goto pipe_err_free;
 
 		skb_queue_tail(&other->sk_receive_queue, skb);
+		if (max_level > unix_sk(other)->recursion_level)
+			unix_sk(other)->recursion_level = max_level;
 		unix_state_unlock(other);
 		other->sk_data_ready(other, size);
 		sent += size;
@@ -1845,6 +1871,7 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 		unix_state_lock(sk);
 		skb = skb_dequeue(&sk->sk_receive_queue);
 		if (skb == NULL) {
+			unix_sk(sk)->recursion_level = 0;
 			if (copied >= target)
 				goto unlock;
 
diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index c8df6fda0b1f..f89f83bf828e 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -96,7 +96,7 @@ static DECLARE_WAIT_QUEUE_HEAD(unix_gc_wait);
 unsigned int unix_tot_inflight;
 
 
-static struct sock *unix_get_socket(struct file *filp)
+struct sock *unix_get_socket(struct file *filp)
 {
 	struct sock *u_sock = NULL;
 	struct inode *inode = filp->f_path.dentry->d_inode;
@@ -259,9 +259,16 @@ static void inc_inflight_move_tail(struct unix_sock *u)
 }
 
 static bool gc_in_progress = false;
+#define UNIX_INFLIGHT_TRIGGER_GC 16000
 
 void wait_for_unix_gc(void)
 {
+	/*
+	 * If number of inflight sockets is insane,
+	 * force a garbage collect right now.
+	 */
+	if (unix_tot_inflight > UNIX_INFLIGHT_TRIGGER_GC && !gc_in_progress)
+		unix_gc();
 	wait_event(unix_gc_wait, gc_in_progress == false);
 }