From: Florian Westphal <fw@strlen.de>
Date: Mon, 11 Feb 2013 23:22:38 +0000 (+0000)
Subject: netfilter: ctnetlink: don't permit ct creation with random tuple
X-Git-Tag: v3.9-rc1~139^2~29^2~8^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=442fad9423b78319e0019a7f5047eddf3317afbc;p=pandora-kernel.git

netfilter: ctnetlink: don't permit ct creation with random tuple

Userspace can cause kernel panic by not specifying orig/reply
tuple: kernel will create a tuple with random stack values.

Problem is that tuple.dst.dir will be random, too, which
causes nf_ct_tuplehash_to_ctrack() to return garbage.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@gnumonks.org>
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