Bug 2502297 (CVE-2026-63840) - CVE-2026-63840 kernel: drm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring
Summary: CVE-2026-63840 kernel: drm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring
Keywords:
Status: NEW
Alias: CVE-2026-63840
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-19 15:02 UTC by OSIDB Bzimport
Modified: 2026-07-31 19:08 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description OSIDB Bzimport 2026-07-19 15:02:34 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/jpeg: set no_user_fence for JPEG v5.3.0 ring

JPEG rings do not support 64-bit user fence writes, reject CS
submissions with user fences.

(cherry picked from commit 86ac011ae234c03fb872f4945913391ea1d8862e)
Comment 1 Keith Grant 2026-07-20 17:02:05 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026071929-CVE-2026-63840-03cc@gregkh/T
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