From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 1 Dec 2006 03:22:42 +0000 (-0800)
Subject: [EBTABLES]: Fix wraparounds in ebt_entries verification.
X-Git-Tag: v2.6.20-rc1~34^2~40^2~70
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb2ef25c2c62444b8fdb0346a23658a419803df9;p=pandora-kernel.git

[EBTABLES]: Fix wraparounds in ebt_entries verification.

We need to verify that
	a) we are not too close to the end of buffer to dereference
	b) next entry we'll be checking won't be _before_ our

While we are at it, don't subtract unrelated pointers...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
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