CVE-2026-63852
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 v4.0.3 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit ff1a5a125c5a70c328806b9bc01d7d942cf3f9aa)
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/0177ac6141c8857130cf365369c74dee7b6b1f7f ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0177ac6141c8857130cf365369c74dee7b6b1f7fPatch
- https://git.kernel.org/stable/c/387b7c7667bd5c53549350ddad866d2fcf75a529Patch
- https://git.kernel.org/stable/c/4532b52b34e4e4310386e6fdf6a643368599f522Patch
- https://git.kernel.org/stable/c/9076a83e5adefd10dc5c967c7b8bde601c4c512aPatch
- https://git.kernel.org/stable/c/c12a5d35033c0640c57c10d7111c010c7b9c2c8ePatch