| commit | d937cd6790a2bef2d07b500487646bd794c039bb | [log] [tgz] |
|---|---|---|
| author | Takashi Iwai <tiwai@suse.de> | Tue Nov 21 16:55:51 2017 +0100 |
| committer | Takashi Iwai <tiwai@suse.de> | Tue Nov 21 17:50:29 2017 +0100 |
| tree | c4bb62fe1c2cdcec12c0ed4a9725e19545b1e540 | |
| parent | 3d4e8303f2c747c8540a0a0126d0151514f6468b [diff] |
ALSA: usb-audio: Add sanity checks to FE parser
When the usb-audio descriptor contains the malformed feature unit
description with a too short length, the driver may access
out-of-bounds. Add a sanity check of the header size at the beginning
of parse_audio_feature_unit().
Fixes: 23caaf19b11e ("ALSA: usb-mixer: Add support for Audio Class v2.0")
Reported-by: Andrey Konovalov <andreyknvl@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>