ALSA: mts64: Check card index validity at probe

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Although mts64 driver has a check of the given devptr->id value, it
doesn't check for a negative id, which is often given as "none" or
such value when bound via sysfs.  This may lead to OOB access for
index[] and other parameters.

Add a sanity check for the card index and warn/correct it if it's a
value out of the range.

Cc: stable@vger.kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260806153227.1460166-6-tiwai@suse.de

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Takashi Iwai 2026-08-06 17:32:22 +02:00

parent b65d5182ec

commit d18a260720

1 changed files with 6 additions and 0 deletions

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sound/drivers/mts64.c

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