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linux/sound/usb
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Takashi Iwai cf8715aecc ALSA: usb: Fix UBSAN warning in parse_audio_unit() 
[ Upstream commit 2f38cf730c ]

A malformed USB descriptor may pass the lengthy mixer description with
a lot of channels, and this may overflow the 32bit integer shift
size, as caught by syzbot UBSAN test.  Although this won't cause any
real trouble, it's better to address.

This patch introduces a sanity check of the number of channels to bail
out the parsing when too many channels are found.

Reported-by: syzbot+78d5b129a762182225aa@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/0000000000000adac5061d3c7355@google.com
Link: https://patch.msgid.link/20240715123619.26612-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-08-29 17:30:23 +02:00
..
6fire ALSA: usb/6fire: fix repeated words in comments 2022-07-25 08:28:17 +02:00
bcd2000 ALSA: bcd2000: Fix a UAF bug on the error path of probing 2022-07-15 08:58:36 +02:00
caiaq ALSA: caiaq: input: Add error handling for unsupported input methods in snd_usb_caiaq_input_init 2023-05-17 11:53:37 +02:00
hiface ALSA: hiface: fix repeated words in comments 2022-07-25 08:28:37 +02:00
line6 ALSA: line6: Fix racy access to midibuf 2024-08-14 13:52:55 +02:00
misc ALSA: ua101: fix division by zero at probe 2021-10-27 08:23:30 +02:00
usx2y ALSA: usx2y: Replace runtime->status->state reference to runtime->state 2022-09-27 08:48:34 +02:00
card.c ALSA: usb-audio: Yet more regression for for the delayed card registration 2022-11-08 07:59:30 +01:00
card.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2023-01-07 11:11:43 +01:00
clock.c ALSA: usb-audio: Ignore clock selector errors for single connection 2024-03-01 13:26:27 +01:00
clock.h ALSA: usb-audio: Constify audioformat pointer references 2020-11-23 15:15:36 +01:00
endpoint.c ALSA: usb-audio: Fix recursive locking at XRUN during syncing 2023-04-06 12:10:43 +02:00
endpoint.h ALSA: usb-audio: Fix recursive locking at XRUN during syncing 2023-04-06 12:10:43 +02:00
format.c ALSA: usb-audio: Check presence of valid altsetting control 2024-03-01 13:26:27 +01:00
format.h ALSA: usb: initial USB Audio Device Class 3.0 support 2018-03-21 11:46:33 +01:00
helper.c ALSA: usb-audio: Add snd_usb_get_host_interface() helper 2020-11-23 15:13:47 +01:00
helper.h ALSA: usb-audio: Add snd_usb_get_host_interface() helper 2020-11-23 15:13:47 +01:00
implicit.c ALSA: usb-audio: Always initialize fixed_rate in snd_usb_find_implicit_fb_sync_format() 2023-01-18 11:58:09 +01:00
implicit.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2023-01-07 11:11:43 +01:00
Kconfig sound: Fix Kconfig indentation 2019-10-07 03:53:03 +02:00
Makefile ALSA: scarlett2: Rename scarlett_gen2 to scarlett2 2024-04-27 17:07:11 +02:00
media.c ALSA: usb-audio: fix spelling mistakes 2021-07-05 19:33:54 +02:00
media.h media: sound/usb: Use Media Controller API to share media resources 2019-04-22 11:21:06 -04:00
midi.c ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open() 2022-11-12 15:13:01 +01:00
midi.h ALSA: usb-audio: generate midi streaming substream names from jack names 2021-03-01 09:21:54 +01:00
mixer.c ALSA: usb: Fix UBSAN warning in parse_audio_unit() 2024-08-29 17:30:23 +02:00
mixer.h ALSA: usb-audio: Drop CONFIG_PM ifdefs 2021-12-06 10:19:40 +01:00
mixer_maps.c ALSA: usb-audio: Add quirk for Microsoft Modern Wireless Headset 2023-09-13 09:42:22 +02:00
mixer_quirks.c ALSA: scarlett2: Rename scarlett_gen2 to scarlett2 2024-04-27 17:07:11 +02:00
mixer_quirks.h ALSA: usb-audio: Drop CONFIG_PM ifdefs 2021-12-06 10:19:40 +01:00
mixer_s1810c.c ALSA: usb-audio: remove redundant assignment to variable c 2022-02-08 08:21:32 +01:00
mixer_s1810c.h ALSA: usb-audio: Add support for Presonus Studio 1810c 2020-02-15 09:46:16 +01:00
mixer_scarlett.c ALSA: usb-audio: fix spelling mistakes 2021-07-05 19:33:54 +02:00
mixer_scarlett.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mixer_scarlett2.c ALSA: scarlett2: Rename scarlett_gen2 to scarlett2 2024-04-27 17:07:11 +02:00
mixer_scarlett2.h ALSA: scarlett2: Rename scarlett_gen2 to scarlett2 2024-04-27 17:07:11 +02:00
mixer_us16x08.c ALSA: usb-audio: US16x08: Move overflow check before array access 2022-06-13 07:40:08 +02:00
mixer_us16x08.h ALSA: usb: Constify snd_kcontrol_new items 2020-01-03 09:24:34 +01:00
pcm.c ALSA: usb-audio: Fix broken resume due to UAC3 power state 2023-06-21 16:00:55 +02:00
pcm.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2023-01-07 11:11:43 +01:00
power.c ALSA: usb-audio: More validations of descriptor units 2019-08-22 10:35:59 +02:00
power.h ALSA: usb-audio: Drop CONFIG_PM ifdefs 2021-12-06 10:19:40 +01:00
proc.c ALSA: usb-audio: Show sync endpoint information in proc outputs 2020-11-23 15:16:45 +01:00
proc.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
quirks-table.h ALSA: usb-audio: Support Yamaha P-125 quirk entry 2024-08-29 17:30:13 +02:00
quirks.c ALSA: usb-audio: Add delay quirk for VIVO USB-C-XE710 HEADSET 2024-08-29 17:30:13 +02:00
quirks.h ALSA: usb-audio: Register card at the last interface 2022-09-06 11:04:56 +02:00
stream.c ALSA: usb-audio: Correct surround channels in UAC1 channel map 2024-08-11 12:36:00 +02:00
stream.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
usbaudio.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2023-01-07 11:11:43 +01:00
validate.c ALSA: usb-audio: Fix endianess in descriptor validation 2020-02-01 09:06:11 +01:00