High 7.8Published Jul 19, 2026

CVE-2026-63854drm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings

Updated under an hour ago (Oct 28, 2026, 9:50 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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)

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from cf14826cdfb5c9fe10f98210d040b9d7486c381d before e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c; from cf14826cdfb5c9fe10f98210d040b9d7486c381d before 26c4f38529ac78930c9c4713e16ebc5b689bb0a3; from cf14826cdfb5c9fe10f98210d040b9d7486c381d before 2d6525e7b2504f5bbfe9417cddc1e8da858791dd; from cf14826cdfb5c9fe10f98210d040b9d7486c381d before b076e45e6f757a2829e80d0144c1b5f201bee5af; from cf14826cdfb5c9fe10f98210d040b9d7486c381d before f1e5a6660d7cbf006079126d9babbf0ccf538c6b	CNA record
linux linux_kernel linux:linux_kernel	from 5.9 before 6.6.141; from 6.7 before 6.12.91; from 6.13 before 6.18.33; from 6.19 before 7.0.10; 7.1	NVD

References

References

https://git.kernel.org/stable/c/e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c	patch
https://git.kernel.org/stable/c/26c4f38529ac78930c9c4713e16ebc5b689bb0a3	patch
https://git.kernel.org/stable/c/2d6525e7b2504f5bbfe9417cddc1e8da858791dd	patch
https://git.kernel.org/stable/c/b076e45e6f757a2829e80d0144c1b5f201bee5af	patch
https://git.kernel.org/stable/c/f1e5a6660d7cbf006079126d9babbf0ccf538c6b	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.