1 files changed, 16 insertions, 11 deletions

diff --git a/net/sctp/input.c b/net/sctp/input.c
index 1008cdc44dd6..efaaefc3bb1c 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -201,7 +201,7 @@ int sctp_rcv(struct sk_buff *skb)
 
 	if (!xfrm_policy_check(sk, XFRM_POLICY_IN, skb, family))
 		goto discard_release;
-	nf_reset(skb);
+	nf_reset_ct(skb);
 
 	if (sk_filter(sk, skb))
 		goto discard_release;
@@ -243,7 +243,7 @@ int sctp_rcv(struct sk_buff *skb)
 		bh_lock_sock(sk);
 	}
 
-	if (sock_owned_by_user(sk)) {
+	if (sock_owned_by_user(sk) || !sctp_newsk_ready(sk)) {
 		if (sctp_add_backlog(sk, skb)) {
 			bh_unlock_sock(sk);
 			sctp_chunk_free(chunk);
@@ -321,8 +321,8 @@ int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb)
 		local_bh_disable();
 		bh_lock_sock(sk);
 
-		if (sock_owned_by_user(sk)) {
-			if (sk_add_backlog(sk, skb, sk->sk_rcvbuf))
+		if (sock_owned_by_user(sk) || !sctp_newsk_ready(sk)) {
+			if (sk_add_backlog(sk, skb, READ_ONCE(sk->sk_rcvbuf)))
 				sctp_chunk_free(chunk);
 			else
 				backloged = 1;
@@ -336,7 +336,13 @@ int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb)
 		if (backloged)
 			return 0;
 	} else {
-		sctp_inq_push(inqueue, chunk);
+		if (!sctp_newsk_ready(sk)) {
+			if (!sk_add_backlog(sk, skb, READ_ONCE(sk->sk_rcvbuf)))
+				return 0;
+			sctp_chunk_free(chunk);
+		} else {
+			sctp_inq_push(inqueue, chunk);
+		}
 	}
 
 done:
@@ -358,7 +364,7 @@ static int sctp_add_backlog(struct sock *sk, struct sk_buff *skb)
 	struct sctp_ep_common *rcvr = chunk->rcvr;
 	int ret;
 
-	ret = sk_add_backlog(sk, skb, sk->sk_rcvbuf);
+	ret = sk_add_backlog(sk, skb, READ_ONCE(sk->sk_rcvbuf));
 	if (!ret) {
 		/* Hold the assoc/ep while hanging on the backlog queue.
 		 * This way, we know structures we need will not disappear
@@ -876,7 +882,7 @@ static inline int sctp_hash_cmp(struct rhashtable_compare_arg *arg,
 	if (!sctp_transport_hold(t))
 		return err;
 
-	if (!net_eq(sock_net(t->asoc->base.sk), x->net))
+	if (!net_eq(t->asoc->base.net, x->net))
 		goto out;
 	if (x->lport != htons(t->asoc->base.bind_addr.port))
 		goto out;
@@ -891,7 +897,7 @@ static inline __u32 sctp_hash_obj(const void *data, u32 len, u32 seed)
 {
 	const struct sctp_transport *t = data;
 
-	return sctp_hashfn(sock_net(t->asoc->base.sk),
+	return sctp_hashfn(t->asoc->base.net,
 			   htons(t->asoc->base.bind_addr.port),
 			   &t->ipaddr, seed);
 }
@@ -931,7 +937,7 @@ int sctp_hash_transport(struct sctp_transport *t)
 	if (t->asoc->temp)
 		return 0;
 
-	arg.net   = sock_net(t->asoc->base.sk);
+	arg.net   = t->asoc->base.net;
 	arg.paddr = &t->ipaddr;
 	arg.lport = htons(t->asoc->base.bind_addr.port);
 
@@ -998,12 +1004,11 @@ struct sctp_transport *sctp_epaddr_lookup_transport(
 				const struct sctp_endpoint *ep,
 				const union sctp_addr *paddr)
 {
-	struct net *net = sock_net(ep->base.sk);
 	struct rhlist_head *tmp, *list;
 	struct sctp_transport *t;
 	struct sctp_hash_cmp_arg arg = {
 		.paddr = paddr,
-		.net   = net,
+		.net   = ep->base.net,
 		.lport = htons(ep->base.bind_addr.port),
 	};