CVE-2026-80812
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedSep 4, 2026
First seenSep 4, 2026
How to fix
Update
- Linux Linuxb7579e86afcec932e169d10e2d603abed8dd2fdf, 4d0892a90b57f0e89b274c3f3c51c2fa17937c88, b20eb7ecbdaa3e649023fe41b177d90983ffb487, c9f10a001c243d1f069ebb0e2f4999ad4043a254, f20c2c32ec1c5c3526f29a03b487c55a5890996c, 3dba0e92e18980cb5a4d70a9a263539ae4f0c7ec, 690b721b9595f9a43395fd4047a832c42b5b6078, 02442d5fe8ee365a084b055d4fa81a0c1abfc3fd or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 6e65c1cc4458b2784224759b6137a50d4f65e610 ≤ v < b7579e86afcec932e169d10e2d603abed8dd2fdf, 6e65c1cc4458b2784224759b6137a50d4f65e610 ≤ v < 4d0892a90b57f0e89b274c3f3c51c2fa17937c88, 6e65c1cc4458b2784224759b6137a50d4f65e610 ≤ v < b20eb7ecbdaa3e649023fe41b177d90983ffb487, 6e65c1cc4458b2784224759b6137a50d4f65e610 ≤ v < c9f10a001c243d1f069ebb0e2f4999ad4043a254, 6e65c1cc4458b2784224759b6137a50d4f65e610 ≤ v < f20c2c32ec1c5c3526f29a03b487c55a5890996c, 6e65c1cc4458b2784224759b6137a50d4f65e610 ≤ v < 3dba0e92e18980cb5a4d70a9a263539ae4f0c7ec, 6e65c1cc4458b2784224759b6137a50d4f65e610 ≤ v < 690b721b9595f9a43395fd4047a832c42b5b6078, 6e65c1cc4458b2784224759b6137a50d4f65e610 ≤ v < 02442d5fe8ee365a084b055d4fa81a0c1abfc3fd, 2.6.16 | b7579e86afcec932e169d10e2d603abed8dd2fdf, 4d0892a90b57f0e89b274c3f3c51c2fa17937c88, b20eb7ecbdaa3e649023fe41b177d90983ffb487, c9f10a001c243d1f069ebb0e2f4999ad4043a254, f20c2c32ec1c5c3526f29a03b487c55a5890996c, 3dba0e92e18980cb5a4d70a9a263539ae4f0c7ec, 690b721b9595f9a43395fd4047a832c42b5b6078, 02442d5fe8ee365a084b055d4fa81a0c1abfc3fd |
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