tree b16356c4da5e33704db570324380ddf44908ae44
parent b6332e6cf9c9198c0f3b0fe37c2c57514dafe1b8
author Al Viro <viro@zeniv.linux.org.uk> 1164943362 -0800
committer David S. Miller <davem@sunset.davemloft.net> 1165123913 -0800

[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>