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bridge: fix a possible use after free
authorEric Dumazet <eric.dumazet@gmail.com>
Tue, 23 Aug 2011 19:57:05 +0000 (19:57 +0000)
committerDavid S. Miller <davem@davemloft.net>
Thu, 25 Aug 2011 00:49:24 +0000 (17:49 -0700)
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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