Bug 2502312 (CVE-2026-63854) - CVE-2026-63854 kernel: drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings
Summary: CVE-2026-63854 kernel: drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec...
Keywords:
Status: NEW
Alias: CVE-2026-63854
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-19 15:03 UTC by OSIDB Bzimport
Modified: 2026-07-20 18:16 UTC (History)
2 users (show)

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

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-07-19 15:03:17 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings

VCN encoder and decoder rings do not support 64-bit user fence writes,
reject CS submissions with user fences.

(cherry picked from commit 663bed3c7b8b9a7624b0d95d300ddae034ad0614)
Comment 1 Keith Grant 2026-07-20 18:13:53 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026071932-CVE-2026-63854-0287@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.