CVE-2026-63851 - Vulnerability Details - OpenCVE

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)

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Linux	Linux Kernel

No data.

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References

Link	Providers
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

History

Sun, 19 Jul 2026 14:45:00 +0000

Type	Values Removed	Values Added
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)
Title		drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
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

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-07-19T14:04:42.581Z

Updated: 2026-07-19T14:04:42.581Z

Reserved: 2026-07-19T07:54:57.016Z

Link: CVE-2026-63851

Vulnrichment

No data.

NVD

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Redhat

No data.

OpenCVE Enrichment

No data.

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