{"id":"CVE-2026-98997","revision":"1e6dc26412424eefbb246f78062a3951","records":[{"revision":"1e6dc26412424eefbb246f78062a3951","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-98997","aliases":[],"title":"drm/amdgpu/userq: only accept doorbell BOs as queue doorbell","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/userq: only accept doorbell BOs as queue doorbell\n\namdgpu_userq_get_doorbell_index() pins any BO passed as doorbell_handle\ninto the doorbell domain. For a regular BO, TTM moves it with\nttm_bo_move_null() and its contents are lost. Since an importer on the\nsame device gets the exporter's GEM object, a client can do this to a\nbuffer another client shared with it.\n\nReject BOs that were not created in the doorbell domain.\n\nv2: drop the error message, use a local abo variable (Christian)\n\n(cherry picked from commit f7497bbc19db4821c62b9d97b31c9086feb2d917)","state":0,"publishedAt":"2026-10-23T12:20:16.267+00:00","modifiedAt":"2026-10-23T12:20:16.267+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/amdgpu_userq.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"f09c1e6077abd1bc2ddd2b97e1135215801ca7f9\",\n                            \"lessThan\": \"112dbe2b10d6d088a6c599980dd960dcbfa55ff0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f09c1e6077abd1bc2ddd2b97e1135215801ca7f9\",\n                            \"lessThan\": \"8640b3f961d743d6dc0458c2b53a3af434690cc1\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"f09c1e6077abd1bc2ddd2b97e1135215801ca7f9\",\n                            \"lessThan\": \"7f7c88dbf4d543f6703e53bdeed380e886733167\",\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/amdgpu_userq.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.16\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.16\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.11\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/112dbe2b10d6d088a6c599980dd960dcbfa55ff0","https://git.kernel.org/stable/c/8640b3f961d743d6dc0458c2b53a3af434690cc1","https://git.kernel.org/stable/c/7f7c88dbf4d543f6703e53bdeed380e886733167"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98997","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98997","identifiers":["CVE-2026-98997"]},"retained":false,"historicalAffected":[]}],"coverage":[]}