From: Wei Yongjun <yjwei@cn.fujitsu.com>
Date: Thu, 2 Jul 2009 16:57:23 +0000 (+0000)
Subject: xfrm4: fix the ports decode of sctp protocol
X-Git-Tag: v2.6.31-rc3~70^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c615c9f3f3cea60279b1bb38e8ef27bd575ecd0c;p=pandora-kernel.git

xfrm4: fix the ports decode of sctp protocol

The SCTP pushed the skb data above the sctp chunk header, so the check
of pskb_may_pull(skb, xprth + 4 - skb->data) in _decode_session4() will
never return 0 because xprth + 4 - skb->data < 0, the ports decode of
sctp will always fail.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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