CVE-2026-80812

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.

Is your site exposed to CVE-2026-80812?

Run a free security scan — no signup, results in seconds.

EPSS — Exploit Prediction

0.0018

Probability of exploitation

0.07%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/02442d5fe8ee365a084b055d4fa81a0c1abfc3fd https://git.kernel.org/stable/c/3dba0e92e18980cb5a4d70a9a263539ae4f0c7ec https://git.kernel.org/stable/c/4d0892a90b57f0e89b274c3f3c51c2fa17937c88 https://git.kernel.org/stable/c/690b721b9595f9a43395fd4047a832c42b5b6078 https://git.kernel.org/stable/c/b20eb7ecbdaa3e649023fe41b177d90983ffb487 https://git.kernel.org/stable/c/b7579e86afcec932e169d10e2d603abed8dd2fdf https://git.kernel.org/stable/c/c9f10a001c243d1f069ebb0e2f4999ad4043a254 https://git.kernel.org/stable/c/f20c2c32ec1c5c3526f29a03b487c55a5890996c

Frequently Asked Questions

What is CVE-2026-80812? +

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.

How do I check if I'm vulnerable to CVE-2026-80812? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.