tree 0f3ae2864a661d0d3ad178421d897ded5f884ac4
parent f8075a8c946d11e17bb5d837e2a032206f26ec70
author Eric Dumazet <edumazet@google.com> 1365090087 +0000
committer David S. Miller <davem@davemloft.net> 1365436817 -0400

ip_gre: fix a possible crash in parse_gre_header()

pskb_may_pull() can change skb->head, so we must init iph/greh after
calling it.

Bug added in commit c54419321455 (GRE: Refactor GRE tunneling code.)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>