diff options
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/udp.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index bcb5def2b09e..7e4d9c871153 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -189,6 +189,11 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, inet_sk(sk)->num = snum; sk->sk_hash = snum; if (sk_unhashed(sk)) { + /* + * We need that previous write to sk->sk_hash committed + * before write to sk->next done in following add_node() variant + */ + smp_wmb(); sk_add_node_rcu(sk, &hslot->head); sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1); } |