PT-2026-61168 · Linux · Linux

CVE-2026-63851 · Published 2026-07-19 · Updated 2026-07-19

Mitre

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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)

Fix

Related Identifiers

CVE-2026-63851

Affected Products

Linux

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2026-63851 · Security Note
• https://git.kernel.org/stable/c/6d9a98c5ed65ba92a09e4ca5a5f6941448145529 · Note
• https://git.kernel.org/stable/c/7f23b5c420b9f68a210c29c5123bace670aa8cc9 · Note
• https://git.kernel.org/stable/c/75091030f07b7957cc0646cd52e2d9d15f611483 · Note
• https://git.kernel.org/stable/c/589a254bf3e88204c8402b9cbccd5e23a0af990f · Note