tree 1284608cf158d4b47a9aa877c8ee6a450fa502a0
parent 3619eb8541a6548f6e27b75aaa96cd53c4d9f3ef
author Eric Dumazet <edumazet@google.com> 1365790067 -0700
committer David S. Miller <davem@davemloft.net> 1365794741 -0400

act_csum: fix possible use after free

tcf_csum_skb_nextlayer() / pskb_may_pull() can change skb->head, so we
must be careful not keeping pointers to previous headers.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Grégoire Baron <baronchon@n7mm.org>
Signed-off-by: David S. Miller <davem@davemloft.net>