Eric Dumazet 96f5a846bd ip_gre: fix a possible crash in ipgre_err()
Another fix needed in ipgre_err(), as parse_gre_header() might change
skb->head.

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>
2013-05-20 00:18:52 -07:00
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