From: Florian Westphal <fw@strlen.de>
Date: Tue, 22 Mar 2016 17:02:49 +0000 (+0100)
Subject: netfilter: x_tables: validate e->target_offset early
X-Git-Tag: v3.2.80~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2fcf67674aeafe62db7b17091050b811883524fe;p=pandora-kernel.git

netfilter: x_tables: validate e->target_offset early

commit bdf533de6968e9686df777dc178486f600c6e617 upstream.

We should check that e->target_offset is sane before
mark_source_chains gets called since it will fetch the target entry
for loop detection.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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