CVE-2026-63843: drm/amdgpu/jpeg: set no_user_fence for JPEG v4.0.5 ring
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu/jpeg: set nouserfence for JPEG v4.0.5 ring
JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences.
(cherry picked from commit f05d0a4f21fc720116d6e238f23308b199891058)
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Patch f05d0a4f21fc720116d6e238f23308b199891058
Event History
Frequently Asked Questions
What is the severity of CVE-2026-63843?
The severity of CVE-2026-63843 is rated as high with a score of 7.8.
How do I fix CVE-2026-63843?
To fix CVE-2026-63843, update your Linux kernel to the latest version that incorporates the patch for this vulnerability.
What is the impact of CVE-2026-63843?
CVE-2026-63843 allows for rejection of command submissions with user fences, which can lead to potential Denial of Service.
Which software is affected by CVE-2026-63843?
CVE-2026-63843 affects the Linux kernel specifically in the drm/amdgpu/jpeg component.
When was CVE-2026-63843 published?
CVE-2026-63843 was published on July 19, 2026.