CVE-2026-63854
HIGH severity · CVSS 7.8 · Improper input validation
7.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit 663bed3c7b8b9a7624b0d95d300ddae034ad0614)
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/26c4f38529ac78930c9c4713e16ebc5b689bb0a3 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/26c4f38529ac78930c9c4713e16ebc5b689bb0a3Patch
- https://git.kernel.org/stable/c/2d6525e7b2504f5bbfe9417cddc1e8da858791ddPatch
- https://git.kernel.org/stable/c/b076e45e6f757a2829e80d0144c1b5f201bee5afPatch
- https://git.kernel.org/stable/c/e74fc9c72c1ba78d0de0b849f5929c3b39a8e20cPatch
- https://git.kernel.org/stable/c/f1e5a6660d7cbf006079126d9babbf0ccf538c6bPatch
- https://git.kernel.org/stable/c/e3d339b0d9051d49eb9c78459091bba4fb525100