From: Mathias Krause <minipli@googlemail.com>
Date: Wed, 15 Aug 2012 11:31:52 +0000 (+0000)
Subject: l2tp: fix info leak via getsockname()
X-Git-Tag: v3.6-rc3~10^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=04d4fbca1017c11381e7d82acea21dd741e748bc;p=pandora-kernel.git

l2tp: fix info leak via getsockname()

The L2TP code for IPv6 fails to initialize the l2tp_unused member of
struct sockaddr_l2tpip6 and that for leaks two bytes kernel stack via
the getsockname() syscall. Initialize l2tp_unused with 0 to avoid the
info leak.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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