21 files changed, 141 insertions, 116 deletions

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index eba8dae22c25..8e51f8555e11 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -858,6 +858,7 @@ static struct sk_buff *__skb_clone(struct sk_buff *n, struct sk_buff *skb)
 	n->cloned = 1;
 	n->nohdr = 0;
 	n->peeked = 0;
+	C(pfmemalloc);
 	n->destructor = NULL;
 	C(tail);
 	C(end);
diff --git a/net/ieee802154/6lowpan/core.c b/net/ieee802154/6lowpan/core.c
index 275449b0d633..3297e7fa9945 100644
--- a/net/ieee802154/6lowpan/core.c
+++ b/net/ieee802154/6lowpan/core.c
@@ -90,12 +90,18 @@ static int lowpan_neigh_construct(struct net_device *dev, struct neighbour *n)
 	return 0;
 }
 
+static int lowpan_get_iflink(const struct net_device *dev)
+{
+	return lowpan_802154_dev(dev)->wdev->ifindex;
+}
+
 static const struct net_device_ops lowpan_netdev_ops = {
 	.ndo_init		= lowpan_dev_init,
 	.ndo_start_xmit		= lowpan_xmit,
 	.ndo_open		= lowpan_open,
 	.ndo_stop		= lowpan_stop,
 	.ndo_neigh_construct    = lowpan_neigh_construct,
+	.ndo_get_iflink         = lowpan_get_iflink,
 };
 
 static void lowpan_setup(struct net_device *ldev)
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index ca0dad90803a..e77872c93c20 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -1898,6 +1898,7 @@ static struct xt_match ipt_builtin_mt[] __read_mostly = {
 		.checkentry = icmp_checkentry,
 		.proto      = IPPROTO_ICMP,
 		.family     = NFPROTO_IPV4,
+		.me	    = THIS_MODULE,
 	},
 };
 
diff --git a/net/ipv4/netfilter/nf_tproxy_ipv4.c b/net/ipv4/netfilter/nf_tproxy_ipv4.c
index 805e83ec3ad9..164714104965 100644
--- a/net/ipv4/netfilter/nf_tproxy_ipv4.c
+++ b/net/ipv4/netfilter/nf_tproxy_ipv4.c
@@ -37,7 +37,7 @@ nf_tproxy_handle_time_wait4(struct net *net, struct sk_buff *skb,
 		 * to a listener socket if there's one */
 		struct sock *sk2;
 
-		sk2 = nf_tproxy_get_sock_v4(net, skb, hp, iph->protocol,
+		sk2 = nf_tproxy_get_sock_v4(net, skb, iph->protocol,
 					    iph->saddr, laddr ? laddr : iph->daddr,
 					    hp->source, lport ? lport : hp->dest,
 					    skb->dev, NF_TPROXY_LOOKUP_LISTENER);
@@ -71,7 +71,7 @@ __be32 nf_tproxy_laddr4(struct sk_buff *skb, __be32 user_laddr, __be32 daddr)
 EXPORT_SYMBOL_GPL(nf_tproxy_laddr4);
 
 struct sock *
-nf_tproxy_get_sock_v4(struct net *net, struct sk_buff *skb, void *hp,
+nf_tproxy_get_sock_v4(struct net *net, struct sk_buff *skb,
 		      const u8 protocol,
 		      const __be32 saddr, const __be32 daddr,
 		      const __be16 sport, const __be16 dport,
@@ -79,16 +79,21 @@ nf_tproxy_get_sock_v4(struct net *net, struct sk_buff *skb, void *hp,
 		      const enum nf_tproxy_lookup_t lookup_type)
 {
 	struct sock *sk;
-	struct tcphdr *tcph;
 
 	switch (protocol) {
-	case IPPROTO_TCP:
+	case IPPROTO_TCP: {
+		struct tcphdr _hdr, *hp;
+
+		hp = skb_header_pointer(skb, ip_hdrlen(skb),
+					sizeof(struct tcphdr), &_hdr);
+		if (hp == NULL)
+			return NULL;
+
 		switch (lookup_type) {
 		case NF_TPROXY_LOOKUP_LISTENER:
-			tcph = hp;
 			sk = inet_lookup_listener(net, &tcp_hashinfo, skb,
 						    ip_hdrlen(skb) +
-						      __tcp_hdrlen(tcph),
+						      __tcp_hdrlen(hp),
 						    saddr, sport,
 						    daddr, dport,
 						    in->ifindex, 0);
@@ -110,6 +115,7 @@ nf_tproxy_get_sock_v4(struct net *net, struct sk_buff *skb, void *hp,
 			BUG();
 		}
 		break;
+		}
 	case IPPROTO_UDP:
 		sk = udp4_lib_lookup(net, saddr, sport, daddr, dport,
 				     in->ifindex);
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 0d43705dd001..8e5e2ca9ab1b 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2823,14 +2823,16 @@ static int do_tcp_setsockopt(struct sock *sk, int level,
 	case TCP_REPAIR:
 		if (!tcp_can_repair_sock(sk))
 			err = -EPERM;
-		else if (val == 1) {
-			tp->repair = 1;
+		/* 1 for normal repair, 2 for no window probes */
+		else if (val == 1 || val == 2) {
+			tp->repair = val;
 			sk->sk_reuse = SK_FORCE_REUSE;
 			tp->repair_queue = TCP_NO_QUEUE;
 		} else if (val == 0) {
 			tp->repair = 0;
 			sk->sk_reuse = SK_NO_REUSE;
-			tcp_send_window_probe(sk);
+			if (tp->repair == 1)
+				tcp_send_window_probe(sk);
 		} else
 			err = -EINVAL;
 
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index bea17f1e8302..3b2711e33e4c 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -156,11 +156,24 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
 	 */
 	if (tcptw->tw_ts_recent_stamp &&
 	    (!twp || (reuse && get_seconds() - tcptw->tw_ts_recent_stamp > 1))) {
-		tp->write_seq = tcptw->tw_snd_nxt + 65535 + 2;
-		if (tp->write_seq == 0)
-			tp->write_seq = 1;
-		tp->rx_opt.ts_recent	   = tcptw->tw_ts_recent;
-		tp->rx_opt.ts_recent_stamp = tcptw->tw_ts_recent_stamp;
+		/* In case of repair and re-using TIME-WAIT sockets we still
+		 * want to be sure that it is safe as above but honor the
+		 * sequence numbers and time stamps set as part of the repair
+		 * process.
+		 *
+		 * Without this check re-using a TIME-WAIT socket with TCP
+		 * repair would accumulate a -1 on the repair assigned
+		 * sequence number. The first time it is reused the sequence
+		 * is -1, the second time -2, etc. This fixes that issue
+		 * without appearing to create any others.
+		 */
+		if (likely(!tp->repair)) {
+			tp->write_seq = tcptw->tw_snd_nxt + 65535 + 2;
+			if (tp->write_seq == 0)
+				tp->write_seq = 1;
+			tp->rx_opt.ts_recent	   = tcptw->tw_ts_recent;
+			tp->rx_opt.ts_recent_stamp = tcptw->tw_ts_recent_stamp;
+		}
 		sock_hold(sktw);
 		return 1;
 	}
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 7eab959734bc..daf2e9e9193d 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -1909,6 +1909,7 @@ static struct xt_match ip6t_builtin_mt[] __read_mostly = {
 		.checkentry = icmp6_checkentry,
 		.proto      = IPPROTO_ICMPV6,
 		.family     = NFPROTO_IPV6,
+		.me	    = THIS_MODULE,
 	},
 };
 
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index a452d99c9f52..e4d9e6976d3c 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -585,6 +585,8 @@ int nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user)
 	    fq->q.meat == fq->q.len &&
 	    nf_ct_frag6_reasm(fq, skb, dev))
 		ret = 0;
+	else
+		skb_dst_drop(skb);
 
 out_unlock:
 	spin_unlock_bh(&fq->q.lock);
diff --git a/net/ipv6/netfilter/nf_tproxy_ipv6.c b/net/ipv6/netfilter/nf_tproxy_ipv6.c
index bf1d6c421e3b..5dfd33af6451 100644
--- a/net/ipv6/netfilter/nf_tproxy_ipv6.c
+++ b/net/ipv6/netfilter/nf_tproxy_ipv6.c
@@ -55,7 +55,7 @@ nf_tproxy_handle_time_wait6(struct sk_buff *skb, int tproto, int thoff,
 		 * to a listener socket if there's one */
 		struct sock *sk2;
 
-		sk2 = nf_tproxy_get_sock_v6(net, skb, thoff, hp, tproto,
+		sk2 = nf_tproxy_get_sock_v6(net, skb, thoff, tproto,
 					    &iph->saddr,
 					    nf_tproxy_laddr6(skb, laddr, &iph->daddr),
 					    hp->source,
@@ -72,7 +72,7 @@ nf_tproxy_handle_time_wait6(struct sk_buff *skb, int tproto, int thoff,
 EXPORT_SYMBOL_GPL(nf_tproxy_handle_time_wait6);
 
 struct sock *
-nf_tproxy_get_sock_v6(struct net *net, struct sk_buff *skb, int thoff, void *hp,
+nf_tproxy_get_sock_v6(struct net *net, struct sk_buff *skb, int thoff,
 		      const u8 protocol,
 		      const struct in6_addr *saddr, const struct in6_addr *daddr,
 		      const __be16 sport, const __be16 dport,
@@ -80,15 +80,20 @@ nf_tproxy_get_sock_v6(struct net *net, struct sk_buff *skb, int thoff, void *hp,
 		      const enum nf_tproxy_lookup_t lookup_type)
 {
 	struct sock *sk;
-	struct tcphdr *tcph;
 
 	switch (protocol) {
-	case IPPROTO_TCP:
+	case IPPROTO_TCP: {
+		struct tcphdr _hdr, *hp;
+
+		hp = skb_header_pointer(skb, thoff,
+					sizeof(struct tcphdr), &_hdr);
+		if (hp == NULL)
+			return NULL;
+
 		switch (lookup_type) {
 		case NF_TPROXY_LOOKUP_LISTENER:
-			tcph = hp;
 			sk = inet6_lookup_listener(net, &tcp_hashinfo, skb,
-						   thoff + __tcp_hdrlen(tcph),
+						   thoff + __tcp_hdrlen(hp),
 						   saddr, sport,
 						   daddr, ntohs(dport),
 						   in->ifindex, 0);
@@ -110,6 +115,7 @@ nf_tproxy_get_sock_v6(struct net *net, struct sk_buff *skb, int thoff, void *hp,
 			BUG();
 		}
 		break;
+		}
 	case IPPROTO_UDP:
 		sk = udp6_lib_lookup(net, saddr, sport, daddr, dport,
 				     in->ifindex);
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index dbd7d1fad277..f0a1c536ef15 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -460,6 +460,13 @@ config NF_TABLES
 
 if NF_TABLES
 
+config NF_TABLES_SET
+	tristate "Netfilter nf_tables set infrastructure"
+	help
+	  This option enables the nf_tables set infrastructure that allows to
+	  look up for elements in a set and to build one-way mappings between
+	  matchings and actions.
+
 config NF_TABLES_INET
 	depends on IPV6
 	select NF_TABLES_IPV4
@@ -493,24 +500,6 @@ config NFT_FLOW_OFFLOAD
 	  This option adds the "flow_offload" expression that you can use to
 	  choose what flows are placed into the hardware.
 
-config NFT_SET_RBTREE
-	tristate "Netfilter nf_tables rbtree set module"
-	help
-	  This option adds the "rbtree" set type (Red Black tree) that is used
-	  to build interval-based sets.
-
-config NFT_SET_HASH
-	tristate "Netfilter nf_tables hash set module"
-	help
-	  This option adds the "hash" set type that is used to build one-way
-	  mappings between matchings and actions.
-
-config NFT_SET_BITMAP
-	tristate "Netfilter nf_tables bitmap set module"
-	help
-	  This option adds the "bitmap" set type that is used to build sets
-	  whose keys are smaller or equal to 16 bits.
-
 config NFT_COUNTER
 	tristate "Netfilter nf_tables counter module"
 	help
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 44449389e527..8a76dced974d 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -78,7 +78,11 @@ nf_tables-objs := nf_tables_core.o nf_tables_api.o nft_chain_filter.o \
 		  nft_bitwise.o nft_byteorder.o nft_payload.o nft_lookup.o \
 		  nft_dynset.o nft_meta.o nft_rt.o nft_exthdr.o
 
+nf_tables_set-objs := nf_tables_set_core.o \
+		      nft_set_hash.o nft_set_bitmap.o nft_set_rbtree.o
+
 obj-$(CONFIG_NF_TABLES)		+= nf_tables.o
+obj-$(CONFIG_NF_TABLES_SET)	+= nf_tables_set.o
 obj-$(CONFIG_NFT_COMPAT)	+= nft_compat.o
 obj-$(CONFIG_NFT_CONNLIMIT)	+= nft_connlimit.o
 obj-$(CONFIG_NFT_NUMGEN)	+= nft_numgen.o
@@ -91,9 +95,6 @@ obj-$(CONFIG_NFT_QUEUE)		+= nft_queue.o
 obj-$(CONFIG_NFT_QUOTA)		+= nft_quota.o
 obj-$(CONFIG_NFT_REJECT) 	+= nft_reject.o
 obj-$(CONFIG_NFT_REJECT_INET)	+= nft_reject_inet.o
-obj-$(CONFIG_NFT_SET_RBTREE)	+= nft_set_rbtree.o
-obj-$(CONFIG_NFT_SET_HASH)	+= nft_set_hash.o
-obj-$(CONFIG_NFT_SET_BITMAP)	+= nft_set_bitmap.o
 obj-$(CONFIG_NFT_COUNTER)	+= nft_counter.o
 obj-$(CONFIG_NFT_LOG)		+= nft_log.o
 obj-$(CONFIG_NFT_MASQ)		+= nft_masq.o
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 3465da2a98bd..3d5280425027 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -2043,7 +2043,7 @@ int nf_conntrack_set_hashsize(const char *val, const struct kernel_param *kp)
 		return -EOPNOTSUPP;
 
 	/* On boot, we can set this without any fancy locking. */
-	if (!nf_conntrack_htable_size)
+	if (!nf_conntrack_hash)
 		return param_set_uint(val, kp);
 
 	rc = kstrtouint(val, 0, &hashsize);
diff --git a/net/netfilter/nf_tables_set_core.c b/net/netfilter/nf_tables_set_core.c
new file mode 100644
index 000000000000..814789644bd3
--- /dev/null
+++ b/net/netfilter/nf_tables_set_core.c
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <net/netfilter/nf_tables_core.h>
+
+static int __init nf_tables_set_module_init(void)
+{
+	nft_register_set(&nft_set_hash_fast_type);
+	nft_register_set(&nft_set_hash_type);
+	nft_register_set(&nft_set_rhash_type);
+	nft_register_set(&nft_set_bitmap_type);
+	nft_register_set(&nft_set_rbtree_type);
+
+	return 0;
+}
+
+static void __exit nf_tables_set_module_exit(void)
+{
+	nft_unregister_set(&nft_set_rbtree_type);
+	nft_unregister_set(&nft_set_bitmap_type);
+	nft_unregister_set(&nft_set_rhash_type);
+	nft_unregister_set(&nft_set_hash_type);
+	nft_unregister_set(&nft_set_hash_fast_type);
+}
+
+module_init(nf_tables_set_module_init);
+module_exit(nf_tables_set_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_NFT_SET();
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index 8d1ff654e5af..32535eea51b2 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -832,10 +832,18 @@ nft_target_select_ops(const struct nft_ctx *ctx,
 	rev = ntohl(nla_get_be32(tb[NFTA_TARGET_REV]));
 	family = ctx->family;
 
+	if (strcmp(tg_name, XT_ERROR_TARGET) == 0 ||
+	    strcmp(tg_name, XT_STANDARD_TARGET) == 0 ||
+	    strcmp(tg_name, "standard") == 0)
+		return ERR_PTR(-EINVAL);
+
 	/* Re-use the existing target if it's already loaded. */
 	list_for_each_entry(nft_target, &nft_target_list, head) {
 		struct xt_target *target = nft_target->ops.data;
 
+		if (!target->target)
+			continue;
+
 		if (nft_target_cmp(target, tg_name, rev, family))
 			return &nft_target->ops;
 	}
@@ -844,6 +852,11 @@ nft_target_select_ops(const struct nft_ctx *ctx,
 	if (IS_ERR(target))
 		return ERR_PTR(-ENOENT);
 
+	if (!target->target) {
+		err = -EINVAL;
+		goto err;
+	}
+
 	if (target->targetsize > nla_len(tb[NFTA_TARGET_INFO])) {
 		err = -EINVAL;
 		goto err;
diff --git a/net/netfilter/nft_set_bitmap.c b/net/netfilter/nft_set_bitmap.c
index d6626e01c7ee..128bc16f52dd 100644
--- a/net/netfilter/nft_set_bitmap.c
+++ b/net/netfilter/nft_set_bitmap.c
@@ -296,7 +296,7 @@ static bool nft_bitmap_estimate(const struct nft_set_desc *desc, u32 features,
 	return true;
 }
 
-static struct nft_set_type nft_bitmap_type __read_mostly = {
+struct nft_set_type nft_set_bitmap_type __read_mostly = {
 	.owner		= THIS_MODULE,
 	.ops		= {
 		.privsize	= nft_bitmap_privsize,
@@ -314,20 +314,3 @@ static struct nft_set_type nft_bitmap_type __read_mostly = {
 		.get		= nft_bitmap_get,
 	},
 };
-
-static int __init nft_bitmap_module_init(void)
-{
-	return nft_register_set(&nft_bitmap_type);
-}
-
-static void __exit nft_bitmap_module_exit(void)
-{
-	nft_unregister_set(&nft_bitmap_type);
-}
-
-module_init(nft_bitmap_module_init);
-module_exit(nft_bitmap_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
-MODULE_ALIAS_NFT_SET();
diff --git a/net/netfilter/nft_set_hash.c b/net/netfilter/nft_set_hash.c
index 6f9a1365a09f..72ef35b51cac 100644
--- a/net/netfilter/nft_set_hash.c
+++ b/net/netfilter/nft_set_hash.c
@@ -654,7 +654,7 @@ static bool nft_hash_fast_estimate(const struct nft_set_desc *desc, u32 features
 	return true;
 }
 
-static struct nft_set_type nft_rhash_type __read_mostly = {
+struct nft_set_type nft_set_rhash_type __read_mostly = {
 	.owner		= THIS_MODULE,
 	.features	= NFT_SET_MAP | NFT_SET_OBJECT |
 			  NFT_SET_TIMEOUT | NFT_SET_EVAL,
@@ -677,7 +677,7 @@ static struct nft_set_type nft_rhash_type __read_mostly = {
 	},
 };
 
-static struct nft_set_type nft_hash_type __read_mostly = {
+struct nft_set_type nft_set_hash_type __read_mostly = {
 	.owner		= THIS_MODULE,
 	.features	= NFT_SET_MAP | NFT_SET_OBJECT,
 	.ops		= {
@@ -697,7 +697,7 @@ static struct nft_set_type nft_hash_type __read_mostly = {
 	},
 };
 
-static struct nft_set_type nft_hash_fast_type __read_mostly = {
+struct nft_set_type nft_set_hash_fast_type __read_mostly = {
 	.owner		= THIS_MODULE,
 	.features	= NFT_SET_MAP | NFT_SET_OBJECT,
 	.ops		= {
@@ -716,26 +716,3 @@ static struct nft_set_type nft_hash_fast_type __read_mostly = {
 		.get		= nft_hash_get,
 	},
 };
-
-static int __init nft_hash_module_init(void)
-{
-	if (nft_register_set(&nft_hash_fast_type) ||
-	    nft_register_set(&nft_hash_type) ||
-	    nft_register_set(&nft_rhash_type))
-		return 1;
-	return 0;
-}
-
-static void __exit nft_hash_module_exit(void)
-{
-	nft_unregister_set(&nft_rhash_type);
-	nft_unregister_set(&nft_hash_type);
-	nft_unregister_set(&nft_hash_fast_type);
-}
-
-module_init(nft_hash_module_init);
-module_exit(nft_hash_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_ALIAS_NFT_SET();
diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c
index 7f3a9a211034..1f8f257cb518 100644
--- a/net/netfilter/nft_set_rbtree.c
+++ b/net/netfilter/nft_set_rbtree.c
@@ -462,7 +462,7 @@ static bool nft_rbtree_estimate(const struct nft_set_desc *desc, u32 features,
 	return true;
 }
 
-static struct nft_set_type nft_rbtree_type __read_mostly = {
+struct nft_set_type nft_set_rbtree_type __read_mostly = {
 	.owner		= THIS_MODULE,
 	.features	= NFT_SET_INTERVAL | NFT_SET_MAP | NFT_SET_OBJECT | NFT_SET_TIMEOUT,
 	.ops		= {
@@ -481,20 +481,3 @@ static struct nft_set_type nft_rbtree_type __read_mostly = {
 		.get		= nft_rbtree_get,
 	},
 };
-
-static int __init nft_rbtree_module_init(void)
-{
-	return nft_register_set(&nft_rbtree_type);
-}
-
-static void __exit nft_rbtree_module_exit(void)
-{
-	nft_unregister_set(&nft_rbtree_type);
-}
-
-module_init(nft_rbtree_module_init);
-module_exit(nft_rbtree_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_ALIAS_NFT_SET();
diff --git a/net/netfilter/xt_TPROXY.c b/net/netfilter/xt_TPROXY.c
index 58fce4e749a9..d76550a8b642 100644
--- a/net/netfilter/xt_TPROXY.c
+++ b/net/netfilter/xt_TPROXY.c
@@ -61,7 +61,7 @@ tproxy_tg4(struct net *net, struct sk_buff *skb, __be32 laddr, __be16 lport,
 	 * addresses, this happens if the redirect already happened
 	 * and the current packet belongs to an already established
 	 * connection */
-	sk = nf_tproxy_get_sock_v4(net, skb, hp, iph->protocol,
+	sk = nf_tproxy_get_sock_v4(net, skb, iph->protocol,
 				   iph->saddr, iph->daddr,
 				   hp->source, hp->dest,
 				   skb->dev, NF_TPROXY_LOOKUP_ESTABLISHED);
@@ -77,7 +77,7 @@ tproxy_tg4(struct net *net, struct sk_buff *skb, __be32 laddr, __be16 lport,
 	else if (!sk)
 		/* no, there's no established connection, check if
 		 * there's a listener on the redirected addr/port */
-		sk = nf_tproxy_get_sock_v4(net, skb, hp, iph->protocol,
+		sk = nf_tproxy_get_sock_v4(net, skb, iph->protocol,
 					   iph->saddr, laddr,
 					   hp->source, lport,
 					   skb->dev, NF_TPROXY_LOOKUP_LISTENER);
@@ -150,7 +150,7 @@ tproxy_tg6_v1(struct sk_buff *skb, const struct xt_action_param *par)
 	 * addresses, this happens if the redirect already happened
 	 * and the current packet belongs to an already established
 	 * connection */
-	sk = nf_tproxy_get_sock_v6(xt_net(par), skb, thoff, hp, tproto,
+	sk = nf_tproxy_get_sock_v6(xt_net(par), skb, thoff, tproto,
 				   &iph->saddr, &iph->daddr,
 				   hp->source, hp->dest,
 				   xt_in(par), NF_TPROXY_LOOKUP_ESTABLISHED);
@@ -171,7 +171,7 @@ tproxy_tg6_v1(struct sk_buff *skb, const struct xt_action_param *par)
 	else if (!sk)
 		/* no there's no established connection, check if
 		 * there's a listener on the redirected addr/port */
-		sk = nf_tproxy_get_sock_v6(xt_net(par), skb, thoff, hp,
+		sk = nf_tproxy_get_sock_v6(xt_net(par), skb, thoff,
 					   tproto, &iph->saddr, laddr,
 					   hp->source, lport,
 					   xt_in(par), NF_TPROXY_LOOKUP_LISTENER);
diff --git a/net/nsh/nsh.c b/net/nsh/nsh.c
index 9696ef96b719..1a30e165eeb4 100644
--- a/net/nsh/nsh.c
+++ b/net/nsh/nsh.c
@@ -104,7 +104,7 @@ static struct sk_buff *nsh_gso_segment(struct sk_buff *skb,
 	__skb_pull(skb, nsh_len);
 
 	skb_reset_mac_header(skb);
-	skb_reset_mac_len(skb);
+	skb->mac_len = proto == htons(ETH_P_TEB) ? ETH_HLEN : 0;
 	skb->protocol = proto;
 
 	features &= NETIF_F_SG;
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 57634bc3da74..9b27d0cd766d 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2878,6 +2878,8 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 			goto out_free;
 	} else if (reserve) {
 		skb_reserve(skb, -reserve);
+		if (len < reserve)
+			skb_reset_network_header(skb);
 	}
 
 	/* Returns -EFAULT on error */
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index cd2e0e342fb6..6c0a9d5dbf94 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -479,24 +479,28 @@ static int fq_codel_init(struct Qdisc *sch, struct nlattr *opt,
 	q->cparams.mtu = psched_mtu(qdisc_dev(sch));
 
 	if (opt) {
-		int err = fq_codel_change(sch, opt, extack);
+		err = fq_codel_change(sch, opt, extack);
 		if (err)
-			return err;
+			goto init_failure;
 	}
 
 	err = tcf_block_get(&q->block, &q->filter_list, sch, extack);
 	if (err)
-		return err;
+		goto init_failure;
 
 	if (!q->flows) {
 		q->flows = kvcalloc(q->flows_cnt,
 				    sizeof(struct fq_codel_flow),
 				    GFP_KERNEL);
-		if (!q->flows)
-			return -ENOMEM;
+		if (!q->flows) {
+			err = -ENOMEM;
+			goto init_failure;
+		}
 		q->backlogs = kvcalloc(q->flows_cnt, sizeof(u32), GFP_KERNEL);
-		if (!q->backlogs)
-			return -ENOMEM;
+		if (!q->backlogs) {
+			err = -ENOMEM;
+			goto alloc_failure;
+		}
 		for (i = 0; i < q->flows_cnt; i++) {
 			struct fq_codel_flow *flow = q->flows + i;
 
@@ -509,6 +513,13 @@ static int fq_codel_init(struct Qdisc *sch, struct nlattr *opt,
 	else
 		sch->flags &= ~TCQ_F_CAN_BYPASS;
 	return 0;
+
+alloc_failure:
+	kvfree(q->flows);
+	q->flows = NULL;
+init_failure:
+	q->flows_cnt = 0;
+	return err;
 }
 
 static int fq_codel_dump(struct Qdisc *sch, struct sk_buff *skb)