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

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commit 1245dfc8ca upstream.

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>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>

...

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Li RongQing 2014-10-17 16:53:23 +08:00 • committed by Luis Henriques

parent a591a8b6ec

commit 1721632fef

1 changed files with 2 additions and 1 deletions

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net/ipv4/ip_tunnel_core.c

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