From: Cong Wang <amwang@redhat.com>
Date: Fri, 22 Mar 2013 19:14:07 +0000 (+0000)
Subject: 8021q: fix a potential use-after-free
X-Git-Tag: v3.9-rc5~28^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4a7df340ed1bac190c124c1601bfc10cde9fb4fb;p=pandora-kernel.git

8021q: fix a potential use-after-free

vlan_vid_del() could possibly free ->vlan_info after a RCU grace
period, however, we may still refer to the freed memory area
by 'grp' pointer. Found by code inspection.

This patch moves vlan_vid_del() as behind as possible.

Cc: Patrick McHardy <kaber@trash.net>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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