CVE-2026-63851

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Source

https://cve.org/CVERecord?id=CVE-2026-63851

Import Source

JSON Data

https://api.test.osv.dev/v1/vulns/CVE-2026-63851

Downstream

Published

2026-07-19T14:04:42.581Z

Modified

2026-07-22T03:31:40.973309755Z

Severity

7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Summary

drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring

Details

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/vcn: set nouserfence 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)

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63851.json"
}

References

Affected packages

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

547aad32edac17a3ec4989d8aad2426d0cbeb590

Fixed

75091030f07b7957cc0646cd52e2d9d15f611483

Fixed

6d9a98c5ed65ba92a09e4ca5a5f6941448145529

Fixed

7f23b5c420b9f68a210c29c5123bace670aa8cc9

Fixed

589a254bf3e88204c8402b9cbccd5e23a0af990f

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-63851.json"

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-63851.json"