ip_gre: fix a possible crash in parse_gre_header()

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

Bug added in commit c544193214 (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>

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Eric Dumazet 2013-04-04 15:41:27 +00:00 • committed by David S. Miller

parent f8075a8c94

commit 22251c73ca

1 changed files with 5 additions and 3 deletions

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net/ipv4/ip_gre.c

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