From: Mathias Krause <minipli@googlemail.com>
Date: Wed, 15 Aug 2012 11:31:48 +0000 (+0000)
Subject: Bluetooth: RFCOMM - Fix info leak in getsockopt(BT_SECURITY)
X-Git-Tag: v3.2.30~75
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1621af48f4c2cf3e10438507bea36af7189603b9;p=pandora-kernel.git

Bluetooth: RFCOMM - Fix info leak in getsockopt(BT_SECURITY)

[ Upstream commit 9ad2de43f1aee7e7274a4e0d41465489299e344b ]

The RFCOMM code fails to initialize the key_size member of struct
bt_security before copying it to userland -- that for leaking one
byte kernel stack. Initialize key_size with 0 to avoid the info
leak.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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