CVE-2026-80968: ALSA: mts64: Check card index validity at probe

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-11 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: mts64: Check card index validity at probe 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.

Affected products

Linux kernel: 2.6.19 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/036e7aa793375ab16ea0f64b8de6673220416cc1
https://git.kernel.org/stable/c/1566ca99fc0e892b9164ad893d268b00064fff54
https://git.kernel.org/stable/c/5168a6241e953ecadb0ec05609649f6a7367fef8
https://git.kernel.org/stable/c/5d986d8c9e616636032636d99133f2535f94300d
https://git.kernel.org/stable/c/9cd7c59a106e7267d0cbcf68670594584d8689d0
https://git.kernel.org/stable/c/a4e774eeb61aec64da5b03d3becffde26f7fe4de
https://git.kernel.org/stable/c/cf3af453a48c8d905512dfc44a5a59439b70f4f0
https://git.kernel.org/stable/c/d18a260720f86a5f8b5fcfefc4ba2e9dd01c10f8

Get alerted when CVE-2026-80968 or the next vulnerability affects your stack