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-rw-r--r--net/ipv6/udp.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 06ec39b79609..75703fda23e7 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -879,7 +879,8 @@ static struct sock *__udp6_lib_demux_lookup(struct net *net,
struct sock *sk;
udp_portaddr_for_each_entry_rcu(sk, &hslot2->head) {
- if (INET6_MATCH(sk, net, rmt_addr, loc_addr, ports, dif))
+ if (sk->sk_state == TCP_ESTABLISHED &&
+ INET6_MATCH(sk, net, rmt_addr, loc_addr, ports, dif))
return sk;
/* Only check first socket in chain */
break;