CVE-2026-80812ALSA: dummy: Check card index validity at probe
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 7, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 6e65c1cc4458b2784224759b6137a50d4f65e610 before b7579e86afcec932e169d10e2d603abed8dd2fdf; 6e65c1cc4458b2784224759b6137a50d4f65e610 builds before 4d0892a90b57f0e89b274c3f3c51c2fa17937c88; from 6e65c1cc4458b2784224759b6137a50d4f65e610 before b20eb7ecbdaa3e649023fe41b177d90983ffb487; from 6e65c1cc4458b2784224759b6137a50d4f65e610 before c9f10a001c243d1f069ebb0e2f4999ad4043a254; from 6e65c1cc4458b2784224759b6137a50d4f65e610 before f20c2c32ec1c5c3526f29a03b487c55a5890996c; 6e65c1cc4458b2784224759b6137a50d4f65e610 builds before 3dba0e92e18980cb5a4d70a9a263539ae4f0c7ec; from 6e65c1cc4458b2784224759b6137a50d4f65e610 before 690b721b9595f9a43395fd4047a832c42b5b6078; from 6e65c1cc4458b2784224759b6137a50d4f65e610 before 02442d5fe8ee365a084b055d4fa81a0c1abfc3fd | CNA record |
References
- https://git.kernel.org/stable/c/b7579e86afcec932e169d10e2d603abed8dd2fdf
- https://git.kernel.org/stable/c/4d0892a90b57f0e89b274c3f3c51c2fa17937c88
- https://git.kernel.org/stable/c/b20eb7ecbdaa3e649023fe41b177d90983ffb487
- https://git.kernel.org/stable/c/c9f10a001c243d1f069ebb0e2f4999ad4043a254
- https://git.kernel.org/stable/c/f20c2c32ec1c5c3526f29a03b487c55a5890996c
- https://git.kernel.org/stable/c/3dba0e92e18980cb5a4d70a9a263539ae4f0c7ec
- https://git.kernel.org/stable/c/690b721b9595f9a43395fd4047a832c42b5b6078
- https://git.kernel.org/stable/c/02442d5fe8ee365a084b055d4fa81a0c1abfc3fd
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.