]> www.infradead.org Git - users/jedix/linux-maple.git/commit
8021q: fix a potential use-after-free
authorCong Wang <amwang@redhat.com>
Fri, 22 Mar 2013 19:14:07 +0000 (19:14 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 5 Apr 2013 16:26:17 +0000 (09:26 -0700)
commite7f3bafaf31934af5cf7cb864e9d9be26ed0489e
tree621c8f1d7fb86a008d8286282c71b77156959809
parent08fdc3f632fd9d5a273241d0a7729fded63dfeec
8021q: fix a potential use-after-free

[ Upstream commit 4a7df340ed1bac190c124c1601bfc10cde9fb4fb ]

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.

Signed-off-by: Cong Wang <amwang@redhat.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: "David S. Miller" <davem@davemloft.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/8021q/vlan.c