From bb2ef25c2c62444b8fdb0346a23658a419803df9 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 30 Nov 2006 19:22:42 -0800
Subject: [PATCH] [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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