From: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Date: Wed, 23 Feb 2011 10:43:14 +0000 (+0100)
Subject: ALSA: hdspm - prevent reading unitialized stack memory
X-Git-Tag: v2.6.39-rc1~424^2^2~31
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4ab69a2b3b84415085d261bcf848b7a95c010c9d;p=pandora-kernel.git

ALSA: hdspm - prevent reading unitialized stack memory

Original patch by Dan Rosenberg <drosenberg@vsecurity.com> under commit
e68d3b316ab7b02a074edc4f770e6a746390cb7d. I'm copying his text here:

The SNDRV_HDSPM_IOCTL_GET_CONFIG_INFO ioctl in hdspm.c allow unprivileged
users to read uninitialized kernel stack memory, because several fields
of the hdspm_config struct declared on the stack are not altered
or zeroed before being copied back to the user.  This patch takes care
of it.

Signed-off-by: Adrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

Reading git-diff-tree failed