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

commit d832ccbc upstream.

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

Fixes: 9a2fe9b8 ("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>