{"id":"CVE-2026-63849","revision":"0d27653f32424888aa9462045bde12c5","records":[{"revision":"0d27653f32424888aa9462045bde12c5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-63849","aliases":[],"title":"drm/amdgpu/vcn: set no_user_fence for VCN v5.0.1 enc ring","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/vcn: set no_user_fence for VCN v5.0.1 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 e16be95a2c3ee712b142cb27d2dca0b461181359)","state":0,"publishedAt":"2026-07-19T14:04:41.395+00:00","modifiedAt":"2026-10-19T20:07:51.086+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_1.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"346492f30ce3581bf5324c4ae417eab8537dc998\",\n                            \"lessThan\": \"081ef0e46c9cdd26c0db0ef721470393d36b6655\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"346492f30ce3581bf5324c4ae417eab8537dc998\",\n                            \"lessThan\": \"5a4bffd67e94944ed3db26a959346cfb7fabaecd\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"346492f30ce3581bf5324c4ae417eab8537dc998\",\n                            \"lessThan\": \"8f4954722eab88e10c4ea0c0d3b1269c31421d3a\",\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_1.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.14\",\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/081ef0e46c9cdd26c0db0ef721470393d36b6655","https://git.kernel.org/stable/c/5a4bffd67e94944ed3db26a959346cfb7fabaecd","https://git.kernel.org/stable/c/8f4954722eab88e10c4ea0c0d3b1269c31421d3a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-63849","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-63849","identifiers":["CVE-2026-63849"]},"retained":false,"historicalAffected":[]}],"coverage":[]}