linux-stable.git/sound, branch v3.18.86

ASoC: wm_adsp: Don't overrun firmware file buffer when reading region data

2017-11-30T08:35:55+00:00

[ Upstream commit 1cab2a84f470e15ecc8e5143bfe9398c6e888032 ]

Protect against corrupt firmware files by ensuring that the length we
get for the data in a region actually lies within the available firmware
file data buffer.

Signed-off-by: Richard Fitzgerald 
Signed-off-by: Mark Brown 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

ALSA: hda - Apply ALC269_FIXUP_NO_SHUTUP on HDA_FIXUP_ACT_PROBE

2017-11-30T08:35:55+00:00

[ Upstream commit 972aa2c708703c21f14eb958b37e82aae2530e44 ]

Setting shutup when the action is HDA_FIXUP_ACT_PRE_PROBE might
not have the desired effect since it could be overridden by
another more generic shutup function. Prevent this by setting
the more specific shutup function on HDA_FIXUP_ACT_PROBE.

Signed-off-by: Gabriele Mazzotta 
Signed-off-by: Takashi Iwai 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

ALSA: timer: Remove kernel warning at compat ioctl error paths

2017-11-30T08:35:51+00:00

commit 3d4e8303f2c747c8540a0a0126d0151514f6468b upstream.

Some timer compat ioctls have NULL checks of timer instance with
snd_BUG_ON() that bring up WARN_ON() when the debug option is set.
Actually the condition can be met in the normal situation and it's
confusing and bad to spew kernel warnings with stack trace there.
Let's remove snd_BUG_ON() invocation and replace with the simple
checks.  Also, correct the error code to EBADFD to follow the native
ioctl error handling.

Reported-by: syzbot 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: usb-audio: Add sanity checks in v2 clock parsers

2017-11-30T08:35:51+00:00

commit 0a62d6c966956d77397c32836a5bbfe3af786fc1 upstream.

The helper functions to parse and look for the clock source, selector
and multiplier unit may return the descriptor with a too short length
than required, while there is no sanity check in the caller side.
Add some sanity checks in the parsers, at least, to guarantee the
given descriptor size, for avoiding the potential crashes.

Fixes: 79f920fbff56 ("ALSA: usb-audio: parse clock topology of UAC2 devices")
Reported-by: Andrey Konovalov 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: usb-audio: Fix potential out-of-bound access at parsing SU

2017-11-30T08:35:51+00:00

commit f658f17b5e0e339935dca23e77e0f3cad591926b upstream.

The usb-audio driver may trigger an out-of-bound access at parsing a
malformed selector unit, as it checks the header length only after
evaluating bNrInPins field, which can be already above the given
length.  Fix it by adding the length check beforehand.

Fixes: 99fc86450c43 ("ALSA: usb-mixer: parse descriptors with structs")
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: usb-audio: Add sanity checks to FE parser

2017-11-30T08:35:51+00:00

commit d937cd6790a2bef2d07b500487646bd794c039bb upstream.

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 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: hda: Add Raven PCI ID

2017-11-30T08:35:49+00:00

commit 9ceace3c9c18c67676e75141032a65a8e01f9a7a upstream.

This commit adds PCI ID for Raven platform

Signed-off-by: Vijendar Mukunda 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman

ALSA: vx: Fix possible transfer overflow

2017-11-21T08:01:06+00:00

[ Upstream commit 874e1f6fad9a5184b67f4cee37c1335cd2cc5677 ]

The pseudo DMA transfer codes in VX222 and VX-pocket driver have a
slight bug where they check the buffer boundary wrongly, and may
overflow.  Also, the zero sample count might be handled badly for the
playback (although it shouldn't happen in theory).  This patch
addresses these issues.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=141541
Signed-off-by: Takashi Iwai 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

ALSA: vx: Don't try to update capture stream before running

2017-11-21T08:01:06+00:00

[ Upstream commit ed3c177d960bb5881b945ca6f784868126bb90db ]

The update of stream costs significantly, and we should avoid it
unless the stream really has started.  Check pipe->running flag
instead of pipe->prepared.

Signed-off-by: Takashi Iwai 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

ALSA: seq: Fix OSS sysex delivery in OSS emulation

2017-11-15T09:04:13+00:00

commit 132d358b183ac6ad8b3fea32ad5e0663456d18d1 upstream.

The SYSEX event delivery in OSS sequencer emulation assumed that the
event is encoded in the variable-length data with the straight
buffering.  This was the normal behavior in the past, but during the
development, the chained buffers were introduced for carrying more
data, while the OSS code was left intact.  As a result, when a SYSEX
event with the chained buffer data is passed to OSS sequencer port,
it may end up with the wrong memory access, as if it were having a too
large buffer.

This patch addresses the bug, by applying the buffer data expansion by
the generic snd_seq_dump_var_event() helper function.

Reported-by: syzbot 
Reported-by: Mark Salyzyn 
Signed-off-by: Takashi Iwai 
Signed-off-by: Greg Kroah-Hartman