CVEvulnerability
CVE-2026-80969
- 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: 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.
References
- https://git.kernel.org/stable/c/26a25fb4ef4ba2a33069d489feb75a4c36899cca git.kernel.org
- https://git.kernel.org/stable/c/3a997371ac2957f11a033a4cec2930042dadb7e3 git.kernel.org
- https://git.kernel.org/stable/c/4a3d6c22ca6b6c16e8055fb518aa87f5e043f754 git.kernel.org
- https://git.kernel.org/stable/c/76b6bc38d0f310c0ae1b2a2ebabe2947d92c601a git.kernel.org
- https://git.kernel.org/stable/c/8adda66edf795d4648f8e26f312e4414c535d25a git.kernel.org
- https://git.kernel.org/stable/c/cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3ea git.kernel.org
- https://git.kernel.org/stable/c/d606c703d1e0c54996cb3db76a753157cb2a3c06 git.kernel.org
- https://git.kernel.org/stable/c/f7dcecb92ed192ff5fcf842918fb1aaea84b5bdd git.kernel.org