CVE-2026-63853
highIn the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 enc ring VCN encoder and decoder rings do…
Vendor / product: Linux — linux kernel
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit fd852c048b46f9825e904a4f3f4538fe9d8827d9)
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 ≥5.19 <6.6.160, ≥6.7 <6.12.114, ≥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/1286b6872de0aee1feeeaa6dbac86369806de9a5
Patch / mitigation: https://git.kernel.org/stable/c/51f694221047c84fa185be98210eb2c354ffb8c6
Patch / mitigation: https://git.kernel.org/stable/c/525cc9df654365c147ae61e5562cf599ea2257f7
Patch / mitigation: https://git.kernel.org/stable/c/6bdd2ed6458d35c368fbe9550a4d7f342abd3a92
Patch / mitigation: https://git.kernel.org/stable/c/d8df8918677136b018d71d0b94a1f6b816715946
References
- https://git.kernel.org/stable/c/1286b6872de0aee1feeeaa6dbac86369806de9a5 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/51f694221047c84fa185be98210eb2c354ffb8c6 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/525cc9df654365c147ae61e5562cf599ea2257f7 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/6bdd2ed6458d35c368fbe9550a4d7f342abd3a92 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/772f83fc70b797ac88d696671780eaf175cc7f31 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- https://git.kernel.org/stable/c/d8df8918677136b018d71d0b94a1f6b816715946 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Data sources
NVD CVE API 2.0 — fetched 2026-10-30 13:38 UTC · record ↗