linux/sound/usb
Takashi Iwai 2f38cf730c ALSA: usb: Fix UBSAN warning in parse_audio_unit()
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>
2024-07-15 16:06:09 +02:00
..
6fire ALSA: usb: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:53 +02:00
bcd2000 ALSA: bcd2000: refactor deprecated strncpy 2023-07-29 13:53:56 +02:00
caiaq ALSA: caiaq: Replace with __packed attribute 2023-10-26 09:43:07 +02:00
hiface ALSA: usb: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:53 +02:00
line6 ALSA: line6: Zero-initialize message buffers 2024-04-02 15:01:27 +02:00
misc ALSA: usb: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:53 +02:00
usx2y ALSA: usb: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:53 +02:00
card.c ALSA: usb-audio: Add name for HP Engage Go dock 2024-05-09 10:10:34 +02:00
card.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2022-12-22 09:13:54 +01:00
clock.c ALSA: usb-audio: Ignore clock selector errors for single connection 2024-02-01 15:29:40 +01:00
clock.h ALSA: usb-audio: Constify audioformat pointer references 2020-11-23 15:15:36 +01:00
endpoint.c ALSA: usb-audio: Don't try to submit URBs after disconnection 2023-08-28 15:03:35 +02:00
endpoint.h ALSA: usb-audio: Remove unused function declaration 2023-08-01 16:56:57 +02:00
format.c ALSA: usb-audio: Check presence of valid altsetting control 2024-01-29 16:46:01 +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: remove Wireless USB dead code 2023-03-14 17:00:57 +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() 2023-01-09 16:05:21 +01:00
implicit.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2022-12-22 09:13:54 +01:00
Kconfig ALSA: usb-audio: USB MIDI 2.0 UMP support 2023-05-23 12:11:02 +02:00
Makefile ALSA: usb: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:53 +02:00
media.c ALSA: pcm: Don't embed device 2023-08-17 09:23:45 +02:00
media.h media: sound/usb: Use Media Controller API to share media resources 2019-04-22 11:21:06 -04:00
midi2.c ALSA: usb-audio: fix typo 2024-01-24 14:40:47 +01:00
midi2.h ALSA: usb-audio: USB MIDI 2.0 UMP support 2023-05-23 12:11:02 +02:00
midi.c ALSA: usb-audio: More relaxed check of MIDI jack names 2024-02-15 16:56:05 +01:00
midi.h ALSA: usb-audio: Manage number of rawmidis globally 2023-05-23 12:11:00 +02:00
mixer_maps.c ALSA: usb-audio: Add quirk for Microsoft Modern Wireless Headset 2023-07-25 14:21:11 +02:00
mixer_quirks.c ALSA: scarlett2: Add support for Focusrite Vocaster One and Two 2024-04-18 08:31:14 +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_scarlett2.c ALSA: scarlett2: Increase mixer range to +12dB 2024-05-12 11:43:11 +02:00
mixer_scarlett2.h ALSA: scarlett2: Rename scarlett_gen2 to scarlett2 2023-10-27 11:22:59 +02:00
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_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
mixer.c ALSA: usb: Fix UBSAN warning in parse_audio_unit() 2024-07-15 16:06:09 +02:00
mixer.h ALSA: usb-audio: Drop CONFIG_PM ifdefs 2021-12-06 10:19:40 +01:00
pcm.c ALSA: usb-audio: Fix broken resume due to UAC3 power state 2023-06-16 09:28:08 +02:00
pcm.h ALSA: usb-audio: Add new quirk FIXED_RATE for JBL Quantum810 Wireless 2022-12-22 09:13:54 +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: Add sampling rates support for Mbox3 2024-05-08 18:14:52 +02:00
quirks.c ALSA: usb-audio: Fix for sampling rates support for Mbox3 2024-05-16 16:01:55 +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: Stop parsing channels bits when all channels are found. 2024-03-13 14:29:22 +01:00
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: USB MIDI 2.0 UMP support 2023-05-23 12:11:02 +02:00
validate.c ALSA: usb-audio: Fix endianess in descriptor validation 2020-02-01 09:06:11 +01:00