{"cve":"CVE-2026-63854","nvd":{"published":"2026-07-19T15:16:52.217","modified":"2026-10-19T20:19:24.793","status":"Undergoing Analysis","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn: set no_user_fence for VCN v3.0 enc/dec rings\n\nVCN encoder and decoder rings do not support 64-bit user fence writes,\nreject CS submissions with user fences.\n\n(cherry picked from commit 663bed3c7b8b9a7624b0d95d300ddae034ad0614)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-20"],"references":["https://git.kernel.org/stable/c/26c4f38529ac78930c9c4713e16ebc5b689bb0a3","https://git.kernel.org/stable/c/2d6525e7b2504f5bbfe9417cddc1e8da858791dd","https://git.kernel.org/stable/c/b076e45e6f757a2829e80d0144c1b5f201bee5af","https://git.kernel.org/stable/c/e74fc9c72c1ba78d0de0b849f5929c3b39a8e20c","https://git.kernel.org/stable/c/f1e5a6660d7cbf006079126d9babbf0ccf538c6b"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2026-63854","score":0.00175,"percentile":0.06969,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}