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CVE-2026-80812

ALSA: dummy: Check card index validity at probe

N/A
Published: September 4, 2026 at 03:13 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: 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.

Affected

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

Linux Kernel· Linux
90%
2.6.166e65c1cc4458b2784224759b6137a50d4f65e610
Vendor states this is fixed in 02442d5fe8ee365a084b055d4fa81a0c1abfc3fd (fixed)
Vendor states this is fixed in 3dba0e92e18980cb5a4d70a9a263539ae4f0c7ec (fixed)
Vendor states this is fixed in 4d0892a90b57f0e89b274c3f3c51c2fa17937c88 (fixed)
Vendor states this is fixed in 690b721b9595f9a43395fd4047a832c42b5b6078 (fixed)
Vendor states this is fixed in b20eb7ecbdaa3e649023fe41b177d90983ffb487 (fixed)
Vendor states this is fixed in b7579e86afcec932e169d10e2d603abed8dd2fdf (fixed)
Vendor states this is fixed in c9f10a001c243d1f069ebb0e2f4999ad4043a254 (fixed)
Vendor states this is fixed in f20c2c32ec1c5c3526f29a03b487c55a5890996c (fixed)
Vendor states this is fixed in 2.6.16 (unaffected)
Vendor states this is fixed in 5.15.218 (unaffected)
Vendor states this is fixed in 6.1.185 (unaffected)
Vendor states this is fixed in 6.12.106 (unaffected)
Vendor states this is fixed in 6.18.47 (unaffected)
Vendor states this is fixed in 6.6.154 (unaffected)
Vendor states this is fixed in 7.1.11 (unaffected)
Vendor states this is fixed in 7.2.1 (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/b7579e86afcec932e169d10e2d603abed8dd2fdf
Source: cverecord
https://git.kernel.org/stable/c/4d0892a90b57f0e89b274c3f3c51c2fa17937c88
Source: cverecord
https://git.kernel.org/stable/c/b20eb7ecbdaa3e649023fe41b177d90983ffb487
Source: cverecord
https://git.kernel.org/stable/c/c9f10a001c243d1f069ebb0e2f4999ad4043a254
Source: cverecord
https://git.kernel.org/stable/c/f20c2c32ec1c5c3526f29a03b487c55a5890996c
Source: cverecord
https://git.kernel.org/stable/c/3dba0e92e18980cb5a4d70a9a263539ae4f0c7ec
Source: cverecord
https://git.kernel.org/stable/c/690b721b9595f9a43395fd4047a832c42b5b6078
Source: cverecord
https://git.kernel.org/stable/c/02442d5fe8ee365a084b055d4fa81a0c1abfc3fd

Quick Info

StatusRECEIVED

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