In the Linux kernel, the following vulnerability has been resolved: ALSA: mts64: Check card index validity at probe Although mts64 driver has a… (CVE-2026-80968)
A vulnerability in the Linux kernel's ALSA mts64 driver was resolved by adding a check for negative card index values during probe. The driver previously did not validate negative indices, which could lead to out-of-bounds access of internal arrays.
AI Analysis
Technical Summary
The ALSA mts64 driver in the Linux kernel did not properly validate the card index value during the probe phase. While it checked the devptr->id value, it failed to detect negative indices, which can occur when the device is bound via sysfs with a 'none' or similar value. This lack of validation could cause out-of-bounds (OOB) access to the index[] array and other parameters. The vulnerability was addressed by adding a sanity check to warn and correct invalid card index values.
Potential Impact
Improper validation of the card index could lead to out-of-bounds memory access within the kernel driver. This may cause kernel instability or crashes. No evidence of exploitation in the wild is reported.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add proper validation of the card index in the mts64 driver. Users should update to a kernel version that includes this patch once available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
In the Linux kernel, the following vulnerability has been resolved: ALSA: mts64: Check card index validity at probe Although mts64 driver has a… (CVE-2026-80968)
Description
A vulnerability in the Linux kernel's ALSA mts64 driver was resolved by adding a check for negative card index values during probe. The driver previously did not validate negative indices, which could lead to out-of-bounds access of internal arrays.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The ALSA mts64 driver in the Linux kernel did not properly validate the card index value during the probe phase. While it checked the devptr->id value, it failed to detect negative indices, which can occur when the device is bound via sysfs with a 'none' or similar value. This lack of validation could cause out-of-bounds (OOB) access to the index[] array and other parameters. The vulnerability was addressed by adding a sanity check to warn and correct invalid card index values.
Potential Impact
Improper validation of the card index could lead to out-of-bounds memory access within the kernel driver. This may cause kernel instability or crashes. No evidence of exploitation in the wild is reported.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to add proper validation of the card index in the mts64 driver. Users should update to a kernel version that includes this patch once available. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-x5g7-h5wf-2v48
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-80968"]
Threat ID: 6aa4a02c55bf5e2cf5a86b52
Added to database: 09/12/2026, 00:43:24 UTC
Last enriched: 09/12/2026, 01:22:56 UTC
Last updated: 09/12/2026, 03:01:35 UTC
Views: 2
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