{"id":"CVE-2026-63850","revision":"1b61ee43de5c48ad9684a57e4a955613","records":[{"revision":"1b61ee43de5c48ad9684a57e4a955613","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-63850","aliases":[],"title":"drm/amdgpu/vcn: set no_user_fence for VCN v5.0.0 enc ring","description":"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)","state":0,"publishedAt":"2026-07-19T14:04:41.975+00:00","modifiedAt":"2026-10-19T20:07:51.232+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"b6d1a06320519ac3bfda6ce81067a1bc409b9cff\",\n                            \"lessThan\": \"9f5a1459ecc3195282be617639d710b54779c9dc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b6d1a06320519ac3bfda6ce81067a1bc409b9cff\",\n                            \"lessThan\": \"139a8a52ef4349c62129703b3a3e3a6ae4d634eb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b6d1a06320519ac3bfda6ce81067a1bc409b9cff\",\n                            \"lessThan\": \"2c350f3cd94be847ac216e1358ec7001eaaf0934\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"b6d1a06320519ac3bfda6ce81067a1bc409b9cff\",\n                            \"lessThan\": \"8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.9\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.9\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.91\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.33\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.10\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 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,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/9f5a1459ecc3195282be617639d710b54779c9dc","https://git.kernel.org/stable/c/139a8a52ef4349c62129703b3a3e3a6ae4d634eb","https://git.kernel.org/stable/c/2c350f3cd94be847ac216e1358ec7001eaaf0934","https://git.kernel.org/stable/c/8cae0ce77de492d7c31c1532a2e80c0c6e7e58cb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63850","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-63850","identifiers":["CVE-2026-63850"]},"retained":false,"historicalAffected":[]}],"coverage":[]}