CVE-2026-63851
Published Jul 19, 2026
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)
Is your site exposed to CVE-2026-63851?
Run a free security scan — no signup, results in seconds.
References
Other References
Frequently Asked Questions
What is CVE-2026-63851? +
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)
How do I check if I'm vulnerable to CVE-2026-63851? +
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.