Riskcovery

CVE-2026-80969

ALSA: mpu401: Check card index validity at probe

State
Published
Severity
Not scored
Published
Sep 11, 2026
Updated
Oct 19, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

ALSA: mpu401: Check card index validity at probe

mpu401 driver blindly trusts that the given devptr->id value is within the proper card index range at probe. It's OK for the devices the driver itself creates at the module probe time, but if the device is bound manually via sysfs interface, this could be -1 as "none", and this leads 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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • b3fe95123f0db79dd0345d249c312823178c11f5 to before 4a3d6c22ca6b6c16e8055fb518aa87f5e043f754Affected
  • b3fe95123f0db79dd0345d249c312823178c11f5 to before d606c703d1e0c54996cb3db76a753157cb2a3c06Affected
  • b3fe95123f0db79dd0345d249c312823178c11f5 to before 3a997371ac2957f11a033a4cec2930042dadb7e3Affected
  • b3fe95123f0db79dd0345d249c312823178c11f5 to before 26a25fb4ef4ba2a33069d489feb75a4c36899ccaAffected
  • b3fe95123f0db79dd0345d249c312823178c11f5 to before 76b6bc38d0f310c0ae1b2a2ebabe2947d92c601aAffected
  • b3fe95123f0db79dd0345d249c312823178c11f5 to before cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3eaAffected
  • b3fe95123f0db79dd0345d249c312823178c11f5 to before 8adda66edf795d4648f8e26f312e4414c535d25aAffected
  • b3fe95123f0db79dd0345d249c312823178c11f5 to before f7dcecb92ed192ff5fcf842918fb1aaea84b5bddAffected
LinuxLinux
  • 2.6.16Affected
  • before 2.6.16Not affected
  • 5.10.270 through 5.10.*Not affected
  • 5.15.221 through 5.15.*Not affected
  • 6.1.188 through 6.1.*Not affected
  • 6.6.157 through 6.6.*Not affected
  • 6.12.109 through 6.12.*Not affected
  • 6.18.50 through 6.18.*Not affected
  • 7.2.4 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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