CVE-2026-63854
Published Jul 19, 2026
Description
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)
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References
Other References
https://git.kernel.org/stable/c/26c4f38529ac78930c9c4713e16ebc5b689bb0a3
https://git.kernel.org/stable/c/2d6525e7b2504f5bbfe9417cddc1e8da858791dd
https://git.kernel.org/stable/c/b076e45e6f757a2829e80d0144c1b5f201bee5af
https://git.kernel.org/stable/c/e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c
https://git.kernel.org/stable/c/f1e5a6660d7cbf006079126d9babbf0ccf538c6b
Frequently Asked Questions
What is CVE-2026-63854? +
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)
How do I check if I'm vulnerable to CVE-2026-63854? +
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.