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Takashi Iwai bbc521aac2 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>
2024-08-19 06:05:39 +02:00
..
ac97 ALSA: ac97: bus: Add missing module description 2024-05-09 10:13:07 +02:00
aoa ALSA: aoa: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:08 +02:00
arm ASoC: Updates for v6.10 2024-05-13 11:39:49 +02:00
atmel ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
core ALSA: seq: ump: Optimize conversions from SysEx to UMP 2024-08-11 12:57:58 +02:00
drivers ALSA: pcmtest: Add missing module descriptions 2024-05-09 10:13:07 +02:00
firewire Revert "ALSA: firewire-lib: operate for period elapse event in process context" 2024-08-11 12:57:59 +02:00
hda ALSA/hda: intel-dsp-config: Document AVS as dsp_driver option 2024-06-13 14:11:43 +02:00
i2c ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
isa ALSA: isa: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:48 +02:00
mips ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
oss sound/oss/dmasound: add missing MODULE_DESCRIPTION() macro 2024-06-18 11:55:53 +02:00
parisc ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
pci ALSA: hda/hdmi: Yet more pin fix for HP EliteDesk 800 G4 2024-08-14 15:34:27 +02:00
pcmcia ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
ppc ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
sh ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
soc ASoC: cs35l56: Patch CS35L56_IRQ1_MASK_18 to the default value 2024-08-19 06:05:37 +02:00
sparc ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
spi ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
synth ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
usb ALSA: usb: Fix UBSAN warning in parse_audio_unit() 2024-08-19 06:05:39 +02:00
virtio virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
x86 ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
xen ALSA: misc: Use *-y instead of *-objs in Makefile 2024-05-08 18:18:13 +02:00
ac97_bus.c ALSA: ac97: legacy: Add missing module description 2024-05-09 10:13:07 +02:00
Kconfig This pull request contains the following changes for UML: 2023-09-04 11:32:21 -07:00
last.c
Makefile ALSA: core: Use *-y instead of *-objs in Makefile 2024-05-08 18:17:32 +02:00
sound_core.c sound: make all 'class' structures const 2023-06-21 07:29:10 +02:00