{"id":"CVE-2026-98217","revision":"a42945585dcf4a479b6e17cd3c6f06ae","records":[{"revision":"a42945585dcf4a479b6e17cd3c6f06ae","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98217","aliases":[],"title":"IB/mlx4: Fix use-after-free on pkey sysfs registration failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mlx4: Fix use-after-free on pkey sysfs registration failure\n\nregister_pkey_tree() ignores errors from register_one_pkey_tree() and\ncontinues registering the remaining slaves. The per-slave error path has\nalready released the pkey parent kobjects, but their pointers remain\nstored in the device. A later device cleanup therefore passes the stale\npointers to kobject_put(), causing a use-after-free.\n\nClear the parent pointers after releasing a failed slave tree and skip\nunregistered trees during device cleanup. This preserves the existing\nbest-effort registration behavior while preventing a second cleanup of\nthe failed tree.","state":0,"publishedAt":"2026-10-06T08:44:53.152+00:00","modifiedAt":"2026-10-19T09:15:47.995+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/infiniband/hw/mlx4/sysfs.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"c1e7e466120b80ce49e91af0c9da1ce6dee4844a\",\n                            \"lessThan\": \"791471421d848ce13e84f4b21c9e19973d471c4e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1e7e466120b80ce49e91af0c9da1ce6dee4844a\",\n                            \"lessThan\": \"734f066933484f6c7cedea0312763249beed5845\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1e7e466120b80ce49e91af0c9da1ce6dee4844a\",\n                            \"lessThan\": \"a07bee32127d7c4cd3b1bb9a088e21d0c93634c9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1e7e466120b80ce49e91af0c9da1ce6dee4844a\",\n                            \"lessThan\": \"cf20d7476754c00eec04ae23d3e929de33ce0345\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1e7e466120b80ce49e91af0c9da1ce6dee4844a\",\n                            \"lessThan\": \"0c3482e965b18bc242e54e899d1c4d391ca8e5e3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1e7e466120b80ce49e91af0c9da1ce6dee4844a\",\n                            \"lessThan\": \"ffb80872617b5f9b3dd1536ec2909029fa66f228\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1e7e466120b80ce49e91af0c9da1ce6dee4844a\",\n                            \"lessThan\": \"ced1186fea7c77e16681c7ef4802897885989c3b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c1e7e466120b80ce49e91af0c9da1ce6dee4844a\",\n                            \"lessThan\": \"1af874e9f4ce22ccf8b10ab5462f32c70d3be21a\",\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/infiniband/hw/mlx4/sysfs.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.112\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.54\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.8\",\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/791471421d848ce13e84f4b21c9e19973d471c4e","https://git.kernel.org/stable/c/734f066933484f6c7cedea0312763249beed5845","https://git.kernel.org/stable/c/a07bee32127d7c4cd3b1bb9a088e21d0c93634c9","https://git.kernel.org/stable/c/cf20d7476754c00eec04ae23d3e929de33ce0345","https://git.kernel.org/stable/c/0c3482e965b18bc242e54e899d1c4d391ca8e5e3","https://git.kernel.org/stable/c/ffb80872617b5f9b3dd1536ec2909029fa66f228","https://git.kernel.org/stable/c/ced1186fea7c77e16681c7ef4802897885989c3b","https://git.kernel.org/stable/c/1af874e9f4ce22ccf8b10ab5462f32c70d3be21a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98217","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98217","identifiers":["CVE-2026-98217"]},"retained":false,"historicalAffected":[]}],"coverage":[]}