{"id":"CVE-2026-63852","summary":"drm/amdgpu/vcn: set no_user_fence for VCN v4.0.3 enc ring","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn: set no_user_fence for VCN v4.0.3 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 ff1a5a125c5a70c328806b9bc01d7d942cf3f9aa)","modified":"2026-07-22T03:31:46.829328247Z","published":"2026-07-19T14:04:43.258Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63852.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0177ac6141c8857130cf365369c74dee7b6b1f7f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/387b7c7667bd5c53549350ddad866d2fcf75a529"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4532b52b34e4e4310386e6fdf6a643368599f522"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9076a83e5adefd10dc5c967c7b8bde601c4c512a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c12a5d35033c0640c57c10d7111c010c7b9c2c8e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63852.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63852"},{"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":"b889ef4ac98837838c38f7b9f72bba2f33ee367d"},{"fixed":"c12a5d35033c0640c57c10d7111c010c7b9c2c8e"},{"fixed":"387b7c7667bd5c53549350ddad866d2fcf75a529"},{"fixed":"9076a83e5adefd10dc5c967c7b8bde601c4c512a"},{"fixed":"0177ac6141c8857130cf365369c74dee7b6b1f7f"},{"fixed":"4532b52b34e4e4310386e6fdf6a643368599f522"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-63852.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.5.0"},{"fixed":"6.6.141"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"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/osv-test-cve-osv-conversion/osv-output/CVE-2026-63852.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"}]}