From: Jesper Dangaard Brouer <hawk@comx.dk>
Date: Fri, 6 Feb 2009 09:59:12 +0000 (-0800)
Subject: udp: Fix potential wrong ip_hdr(skb) pointers
X-Git-Tag: v2.6.29-rc5~42^2~20
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2783ef23128ad0a4b34e4121c1f7ff664785712f;p=pandora-kernel.git

udp: Fix potential wrong ip_hdr(skb) pointers

Like the UDP header fix, pskb_may_pull() can potentially
alter the SKB buffer.  Thus the saddr and daddr, pointers
may point to the old skb->data buffer.

I haven't seen corruptions, as its only seen if the old
skb->data buffer were reallocated by another user and
written into very quickly (or poison'd by SLAB debugging).

Signed-off-by: Jesper Dangaard Brouer <hawk@comx.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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