What is CVE-2026-80909?

CVE-2026-80909 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 4.2 onward and patched in 5.10.266, 5.15.217, 6.1.184 and others. CVE-2026-80909 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-80909?

CVE-2026-80909 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-80909?

Yes, CVE-2026-80909 has been patched. Fixed versions include 5.10.266, 5.15.217, 6.1.184 and others. If you are running Linux kernel 4.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-80909 actively exploited?

CVE-2026-80909 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-80909

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Reject UVD message with invalid number of h265 refs Same change as for h264, avoids overflow later when calculating min dpb size. (cherry picked from commit a4b0720e4f1601f97f59a2be9c1b4b94fa6527d5)

Package Linux Kernel

Published 2026-09-04

Last modified 2026-09-07

Patch available

Yes

Affected versions

Linux kernel versions 4.2 and later are affected. Fixed in 5.10.266, 5.15.217, 6.1.184, 6.6.153, 6.12.105, 6.18.46, 7.1.10, 7.2 and their respective stable series.

Affected from

≥ 4.2

Fixed in

✓ 5.10.266 5.10.x ✓ 5.15.217 5.15.x ✓ 6.1.184 6.1.x ✓ 6.6.153 6.6.x ✓ 6.12.105 6.12.x ✓ 6.18.46 6.18.x ✓ 7.1.10 7.1.x ✓ 7.2

References

8 total

Showing 5 of 8 references View all on NVD

Frequently asked questions

What is CVE-2026-80909?

CVE-2026-80909 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.2 onward and has been patched in 5.10.266, 5.15.217, 6.1.184 and others. CVE-2026-80909 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-80909?

Yes. CVE-2026-80909 has been patched. Fixed versions include 5.10.266, 5.15.217, 6.1.184 and others. If you are running Linux kernel 4.2 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-80909 actively exploited?

No. CVE-2026-80909 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.