tree 1de9a439eec25d514f25254320ded076f5fd8144
parent 732c8bd590625e8bc0b88313b82930e336b2bec4
author Thomas Graf <tgraf@suug.ch> 1206659283 -0700
committer David S. Miller <davem@davemloft.net> 1206659283 -0700

[ESP]: Ensure IV is in linear part of the skb to avoid BUG() due to OOB access

ESP does not account for the IV size when calling pskb_may_pull() to
ensure everything it accesses directly is within the linear part of a
potential fragment. This results in a BUG() being triggered when the
both the IPv4 and IPv6 ESP stack is fed with an skb where the first
fragment ends between the end of the esp header and the end of the IV.

This bug was found by Dirk Nehring <dnehring@gmx.net> .

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>