Riskcovery

CVE-2026-80812

ALSA: dummy: Check card index validity at probe

State
Published
Severity
Not scored
Published
Sep 4, 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: dummy: Check card index validity at probe

snd_dummy_probe() blindly trusts that the given devptr->id value is within the proper card index range. 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
  • 6e65c1cc4458b2784224759b6137a50d4f65e610 to before b7579e86afcec932e169d10e2d603abed8dd2fdfAffected
  • 6e65c1cc4458b2784224759b6137a50d4f65e610 to before 4d0892a90b57f0e89b274c3f3c51c2fa17937c88Affected
  • 6e65c1cc4458b2784224759b6137a50d4f65e610 to before b20eb7ecbdaa3e649023fe41b177d90983ffb487Affected
  • 6e65c1cc4458b2784224759b6137a50d4f65e610 to before c9f10a001c243d1f069ebb0e2f4999ad4043a254Affected
  • 6e65c1cc4458b2784224759b6137a50d4f65e610 to before f20c2c32ec1c5c3526f29a03b487c55a5890996cAffected
  • 6e65c1cc4458b2784224759b6137a50d4f65e610 to before 3dba0e92e18980cb5a4d70a9a263539ae4f0c7ecAffected
  • 6e65c1cc4458b2784224759b6137a50d4f65e610 to before 690b721b9595f9a43395fd4047a832c42b5b6078Affected
  • 6e65c1cc4458b2784224759b6137a50d4f65e610 to before 02442d5fe8ee365a084b055d4fa81a0c1abfc3fdAffected
LinuxLinux
  • 2.6.16Affected
  • before 2.6.16Not affected
  • 5.15.218 through 5.15.*Not affected
  • 6.1.185 through 6.1.*Not affected
  • 6.6.154 through 6.6.*Not affected
  • 6.12.106 through 6.12.*Not affected
  • 6.18.47 through 6.18.*Not affected
  • 7.1.11 through 7.1.*Not affected
  • 7.2.1 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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