CVEvulnerability
CVE-2026-80966
- Status
- Received
- Published
- 2026-09-11
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
ALSA: portman2x4: Check card index validity at probe
Although portman2x4 driver has a check of the given devptr->id value,
it doesn't check for a negative id, which is often given as "none" or
such value when bound via sysfs. This may lead 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.
References
- https://git.kernel.org/stable/c/0048994854f3e9c57b7a754de43ef8da5818d140 git.kernel.org
- https://git.kernel.org/stable/c/0ce391090809d610647f424b9b1dc24aa2c546fd git.kernel.org
- https://git.kernel.org/stable/c/3690ef20469d5959378260e2752f2314a2572913 git.kernel.org
- https://git.kernel.org/stable/c/45ea0707298798678a60ff861b695aea049a5469 git.kernel.org
- https://git.kernel.org/stable/c/5d7ac5e9ee5ba76b567ace13b46075caf79dcca0 git.kernel.org
- https://git.kernel.org/stable/c/64898e9bd8b7b229efa8642b85b56b326a6ec3dc git.kernel.org
- https://git.kernel.org/stable/c/d7ef7890e3e35b4ba09e76fc6b72047a1599a5e8 git.kernel.org
- https://git.kernel.org/stable/c/e1ce8ad1009b1736b3044b3324350dcfdd516f42 git.kernel.org