ALSA: usb-audio: Validate UAC3 power domain descriptors, too

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commit d832ccbc30 upstream.

UAC3 power domain descriptors need to be verified with its variable
bLength for avoiding the unexpected OOB accesses by malicious
firmware, too.

Fixes: 9a2fe9b801 ("ALSA: usb: initial USB Audio Device Class 3.0 support")
Reported-and-tested-by: Youngjun Lee <yjjuny.lee@samsung.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250814081245.8902-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Takashi Iwai 2025-08-14 10:12:42 +02:00 • committed by Greg Kroah-Hartman

parent b0878a23ae

commit f03418bb9d

1 changed files with 12 additions and 0 deletions

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sound/usb/validate.c

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