{"id":"CVE-2026-46311","revision":"4bea703a99664a9ca584a1b626c96239","records":[{"revision":"4bea703a99664a9ca584a1b626c96239","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-46311","aliases":[],"title":"drm/amdgpu/userq: fix access to stale wptr mapping","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu/userq: fix access to stale wptr mapping\n\nUse drm_exec to take both locks i.e vm root bo and\nwptr_obj bo to access the mapping data properly.\n\nThis fixes the security issue of unmap the wptr_obj while\na queue creation is in progress and passing other\nbo at same address.\n\n(cherry picked from commit 1fc6c8ab45dbee096469c08c13f6099d57a52d6c)","state":0,"publishedAt":"2026-06-08T15:50:41.866+00:00","modifiedAt":"2026-10-19T19:36:57.524+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/mes_userqueue.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5fb2f7fc21a3668e5794cc0d153641b9719713e1\",\n                            \"lessThan\": \"2da62dbb4169e758c0b1a9378b39a373bf4fb111\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5fb2f7fc21a3668e5794cc0d153641b9719713e1\",\n                            \"lessThan\": \"336a9186f3a4b65bbd865d93936605ac8a1a3991\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5fb2f7fc21a3668e5794cc0d153641b9719713e1\",\n                            \"lessThan\": \"6da7b1242da4455b11c24ce667d1cab1a348c8ea\",\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/mes_userqueue.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\": \"7.0.9\",\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/2da62dbb4169e758c0b1a9378b39a373bf4fb111","https://git.kernel.org/stable/c/336a9186f3a4b65bbd865d93936605ac8a1a3991","https://git.kernel.org/stable/c/6da7b1242da4455b11c24ce667d1cab1a348c8ea"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46311","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-46311","identifiers":["CVE-2026-46311"]},"retained":false,"historicalAffected":[]}],"coverage":[]}