commit 1245dfc8cadb258386fcd27df38215a0eccb1f17
author Li RongQing <roy.qing.li@gmail.com> Fri Oct 17 16:53:23 2014 +0800
committer David S. Miller <davem@davemloft.net> Fri Oct 17 23:45:26 2014 -0400
tree 38a3993b3d7e13526c5a9980eb43aaff9ee3c0ad
parent f88e67149f97d73c704d6fe6f492edde97463025

ipv4: fix a potential use after free in ip_tunnel_core.c

pskb_may_pull() maybe change skb->data and make eth pointer oboslete,
so set eth after pskb_may_pull()

Fixes:3d7b46cd("ip_tunnel: push generic protocol handling to ip_tunnel module")
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>