From: Li RongQing <roy.qing.li@gmail.com>
Date: Sat, 18 Oct 2014 09:33:38 +0000 (+0800)
Subject: ipv6: fix a potential use after free in sit.c
X-Git-Tag: omap-for-v3.19/prcm-cleanup~36^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a6d4518da371b0d21512ef0f641928d6f99ee70f;p=pandora-kernel.git

ipv6: fix a potential use after free in sit.c

pskb_may_pull() maybe change skb->data and make iph pointer oboslete,
fix it by geting ip header length directly.

Fixes: ca15a078 (sit: generate icmpv6 error when receiving icmpv4 error)
Cc: Oussama Ghorbel <ghorbel@pivasoftware.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed