From: Mathias Krause <minipli@googlemail.com>
Date: Wed, 15 Aug 2012 11:31:46 +0000 (+0000)
Subject: Bluetooth: HCI - Fix info leak in getsockopt(HCI_FILTER)
X-Git-Tag: v3.2.30~77
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c7571e8eccb318337c06e09871ce0bf9868b93a;p=pandora-kernel.git

Bluetooth: HCI - Fix info leak in getsockopt(HCI_FILTER)

[ Upstream commit e15ca9a0ef9a86f0477530b0f44a725d67f889ee ]

The HCI code fails to initialize the two padding bytes of struct
hci_ufilter before copying it to userland -- that for leaking two
bytes kernel stack. Add an explicit memset(0) before filling the
structure 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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