From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Tue, 23 Aug 2011 19:57:05 +0000 (+0000)
Subject: bridge: fix a possible use after free
X-Git-Tag: v3.1-rc5~12^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=22df13319d1fec30b8f9bcaadc295829647109bb;p=pandora-kernel.git

bridge: fix a possible use after free

br_multicast_ipv6_rcv() can call pskb_trim_rcsum() and therefore skb
head can be reallocated.

Cache icmp6_type field instead of dereferencing twice the struct
icmp6hdr pointer.

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