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CVE-2026-80969

ALSA: mpu401: Check card index validity at probe

N/A
Published: September 11, 2026 at 07:42 PM UTC
Updated: October 19, 2026 at 09:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
2.6.16b3fe95123f0db79dd0345d249c312823178c11f5
Vendor states this is fixed in 26a25fb4ef4ba2a33069d489feb75a4c36899cca (fixed)
Vendor states this is fixed in 3a997371ac2957f11a033a4cec2930042dadb7e3 (fixed)
Vendor states this is fixed in 4a3d6c22ca6b6c16e8055fb518aa87f5e043f754 (fixed)
Vendor states this is fixed in 76b6bc38d0f310c0ae1b2a2ebabe2947d92c601a (fixed)
Vendor states this is fixed in 8adda66edf795d4648f8e26f312e4414c535d25a (fixed)
Vendor states this is fixed in cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3ea (fixed)
Vendor states this is fixed in d606c703d1e0c54996cb3db76a753157cb2a3c06 (fixed)
Vendor states this is fixed in f7dcecb92ed192ff5fcf842918fb1aaea84b5bdd (fixed)
Vendor states this is fixed in 2.6.16 (unaffected)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.109 (unaffected)
Vendor states this is fixed in 6.18.50 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.4 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/76b6bc38d0f310c0ae1b2a2ebabe2947d92c601a
Source: cverecord
https://git.kernel.org/stable/c/cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3ea
Source: cverecord
https://git.kernel.org/stable/c/8adda66edf795d4648f8e26f312e4414c535d25a
Source: cverecord
https://git.kernel.org/stable/c/f7dcecb92ed192ff5fcf842918fb1aaea84b5bdd
Source: cverecord
https://git.kernel.org/stable/c/4a3d6c22ca6b6c16e8055fb518aa87f5e043f754
Source: cverecord
https://git.kernel.org/stable/c/d606c703d1e0c54996cb3db76a753157cb2a3c06
Source: cverecord
https://git.kernel.org/stable/c/3a997371ac2957f11a033a4cec2930042dadb7e3
Source: cverecord
https://git.kernel.org/stable/c/26a25fb4ef4ba2a33069d489feb75a4c36899cca

Quick Info

StatusRECEIVED

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