---
id: CVE-2026-80968
title: 'ALSA: mts64: Check card index validity at probe'
summary: |-
  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 giv…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe:
  - CWE-787
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad <
    1566ca99fc0e892b9164ad893d268b00064fff54
  - >-
    Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad <
    5d986d8c9e616636032636d99133f2535f94300d
  - >-
    Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad <
    5168a6241e953ecadb0ec05609649f6a7367fef8
  - >-
    Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad <
    9cd7c59a106e7267d0cbcf68670594584d8689d0
  - >-
    Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad <
    036e7aa793375ab16ea0f64b8de6673220416cc1
  - >-
    Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad <
    a4e774eeb61aec64da5b03d3becffde26f7fe4de
  - >-
    Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad <
    cf3af453a48c8d905512dfc44a5a59439b70f4f0
  - >-
    Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad <
    d18a260720f86a5f8b5fcfefc4ba2e9dd01c10f8
  - Linux 2.6.19
published: '2026-09-11'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:45:53.065Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80968'
references:
  - url: 'https://git.kernel.org/stable/c/1566ca99fc0e892b9164ad893d268b00064fff54'
  - url: 'https://git.kernel.org/stable/c/5d986d8c9e616636032636d99133f2535f94300d'
  - url: 'https://git.kernel.org/stable/c/5168a6241e953ecadb0ec05609649f6a7367fef8'
  - url: 'https://git.kernel.org/stable/c/9cd7c59a106e7267d0cbcf68670594584d8689d0'
  - url: 'https://git.kernel.org/stable/c/036e7aa793375ab16ea0f64b8de6673220416cc1'
  - url: 'https://git.kernel.org/stable/c/a4e774eeb61aec64da5b03d3becffde26f7fe4de'
  - url: 'https://git.kernel.org/stable/c/cf3af453a48c8d905512dfc44a5a59439b70f4f0'
  - url: 'https://git.kernel.org/stable/c/d18a260720f86a5f8b5fcfefc4ba2e9dd01c10f8'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80968.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80968'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532220'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80968'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80968'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80968.mbox
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00216
epssPercentile: 0.11982
ingestedAt: '2026-09-14T15:23:07.455Z'
---

## Overview

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

- `Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad < 1566ca99fc0e892b9164ad893d268b00064fff54`
- `Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad < 5d986d8c9e616636032636d99133f2535f94300d`
- `Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad < 5168a6241e953ecadb0ec05609649f6a7367fef8`
- `Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad < 9cd7c59a106e7267d0cbcf68670594584d8689d0`
- `Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad < 036e7aa793375ab16ea0f64b8de6673220416cc1`
- `Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad < a4e774eeb61aec64da5b03d3becffde26f7fe4de`
- `Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad < cf3af453a48c8d905512dfc44a5a59439b70f4f0`
- `Linux >= 68ab801e32bbe2caac8b8c6e6e94f41fe7d687ad < d18a260720f86a5f8b5fcfefc4ba2e9dd01c10f8`
- `Linux 2.6.19`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80968.json)