tree a6acc6651c301af1a5c7edd4258a441da091bfd3
parent 501e89d3aef10f9a5b79137fbb0bcd5bf9cac2ac
author Eric Dumazet <eric.dumazet@gmail.com> 1320152219 +0000
committer David S. Miller <davem@davemloft.net> 1320209487 -0400

udp: fix a race in encap_rcv handling

udp_queue_rcv_skb() has a possible race in encap_rcv handling, since
this pointer can be changed anytime.

We should use ACCESS_ONCE() to close the race.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>