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Commit 799c06ad authored by Takashi Iwai's avatar Takashi Iwai Committed by Greg Kroah-Hartman
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ALSA: usb-audio: Validate UAC3 cluster segment descriptors



commit ecfd41166b72b67d3bdeb88d224ff445f6163869 upstream.

UAC3 class segment descriptors need to be verified whether their sizes
match with the declared lengths and whether they fit with the
allocated buffer sizes, too.  Otherwise malicious firmware may lead to
the unexpected OOB accesses.

Fixes: 11785ef5 ("ALSA: usb-audio: Initial Power Domain support")
Reported-and-tested-by: default avatarYoungjun Lee <yjjuny.lee@samsung.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250814081245.8902-2-tiwai@suse.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1666207b
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