Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 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 084d94ac93707bdda07efb5cee786f632de4219b)
CVSS Score
HIGH
References
- https://git.kernel.org/stable/c/589a254bf3e88204c8402b9cbccd5e23a0af990f
- https://git.kernel.org/stable/c/6d9a98c5ed65ba92a09e4ca5a5f6941448145529
- https://git.kernel.org/stable/c/75091030f07b7957cc0646cd52e2d9d15f611483
- https://git.kernel.org/stable/c/7f23b5c420b9f68a210c29c5123bace670aa8cc9
FAQ
What is CVE-2026-63851?
CVE-2026-63851 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, r...
How severe is CVE-2026-63851?
CVE-2026-63851 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63851?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.