tree 6a265dc2038bc5568c5a499e6c8d4733650ed3f7
parent dc435e6dac1439340eaeceef84022c4e4749796d
author Dmitry Mishin <dim@openvz.org> 1157063319 -0700
committer David S. Miller <davem@sunset.davemloft.net> 1158963527 -0700

[NET]: Fix sk->sk_filter field access

Function sk_filter() is called from tcp_v{4,6}_rcv() functions with arg
needlock = 0, while socket is not locked at that moment. In order to avoid
this and similar issues in the future, use rcu for sk->sk_filter field read
protection.

Signed-off-by: Dmitry Mishin <dim@openvz.org>
Signed-off-by: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Signed-off-by: Kirill Korotaev <dev@openvz.org>