CVE-2026-63840
kernel: drm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 19, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's drm/amdgpu/jpeg driver. The JPEG v5.3.0 ring within this driver does not support 64-bit user fence writes. A local user or application attempting to submit commands with 64-bit user fences to the amdgpu JPEG v5.3.0 ring will have these submissions rejected. This can lead to a denial of service for operations that rely on this specific functionality.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-1287 · Improper Validation of Specified Type of Input