{"id":"CVE-2026-63850","summary":"drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 enc ring","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 enc ring\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 49b1fbbb5a071197ee71e2d70959b1cb29bdc317)","modified":"2026-07-21T03:47:33.912319658Z","published":"2026-07-19T14:04:41.975Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63850.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/139a8a52ef4349c62129703b3a3e3a6ae4d634eb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2c350f3cd94be847ac216e1358ec7001eaaf0934"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9f5a1459ecc3195282be617639d710b54779c9dc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63850.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63850"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"b6d1a06320519ac3bfda6ce81067a1bc409b9cff"},{"fixed":"9f5a1459ecc3195282be617639d710b54779c9dc"},{"fixed":"139a8a52ef4349c62129703b3a3e3a6ae4d634eb"},{"fixed":"2c350f3cd94be847ac216e1358ec7001eaaf0934"},{"fixed":"8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63850.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.9.0"},{"fixed":"6.12.91"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.33"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.10"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63850.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}