CVE-2026-63854
highIn 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 ring…
Vendor / product: Linux — linux kernel
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
7.8 (CVSS v3.1)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Severity source: NVD CVSS v3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
Timeline (UTC)
Published: 2026-07-19 15:16
Modified: 2026-10-30 13:19
NVD status: Modified
Last synced 1 day ago
Verified against the source API 2026-10-30 13:38 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
linux / linux_kernel ≥5.9 <6.6.141, ≥6.7 <6.12.91, ≥6.13 <6.18.33, ≥6.19 <7.0.10, 7.1
Weakness classification (CWE)
NVD-CWE-noinfo CWE-20
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Patch / mitigation: https://git.kernel.org/stable/c/26c4f38529ac78930c9c4713e16ebc5b689bb0a3
Patch / mitigation: https://git.kernel.org/stable/c/2d6525e7b2504f5bbfe9417cddc1e8da858791dd
Patch / mitigation: https://git.kernel.org/stable/c/b076e45e6f757a2829e80d0144c1b5f201bee5af
Patch / mitigation: https://git.kernel.org/stable/c/e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c
Patch / mitigation: https://git.kernel.org/stable/c/f1e5a6660d7cbf006079126d9babbf0ccf538c6b
References
- https://git.kernel.org/stable/c/26c4f38529ac78930c9c4713e16ebc5b689bb0a3 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/2d6525e7b2504f5bbfe9417cddc1e8da858791dd 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/b076e45e6f757a2829e80d0144c1b5f201bee5af 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/e3d339b0d9051d49eb9c78459091bba4fb525100 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/f1e5a6660d7cbf006079126d9babbf0ccf538c6b 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Data sources
NVD CVE API 2.0 — fetched 2026-10-30 13:38 UTC · record ↗