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.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
547aad32edac17a3ec4989d8aad2426d0cbeb590 affected < 75091030f07b7957cc0646cd52e2d9d15f611483
547aad32edac17a3ec4989d8aad2426d0cbeb590 affected < 6d9a98c5ed65ba92a09e4ca5a5f6941448145529
547aad32edac17a3ec4989d8aad2426d0cbeb590 affected < 7f23b5c420b9f68a210c29c5123bace670aa8cc9
547aad32edac17a3ec4989d8aad2426d0cbeb590 affected < 589a254bf3e88204c8402b9cbccd5e23a0af990f
Linux Linux affected
Version Status Constraints
6.7 affected —
0 unaffected < 6.7
6.12.91 unaffected ≤ 6.12.*
6.18.33 unaffected ≤ 6.18.*
7.0.10 unaffected ≤ 7.0.*
7.1 unaffected ≤ *

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Fixes

Solution

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Workaround

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References
Link Providers
https://git.kernel.org/stable/c/589a254bf3e88204c8402b9cbccd5e23a0af990f cve-icon
https://git.kernel.org/stable/c/6d9a98c5ed65ba92a09e4ca5a5f6941448145529 cve-icon
https://git.kernel.org/stable/c/75091030f07b7957cc0646cd52e2d9d15f611483 cve-icon
https://git.kernel.org/stable/c/7f23b5c420b9f68a210c29c5123bace670aa8cc9 cve-icon
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

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

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

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

Link: CVE-2026-63851

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses

No weakness.