{"id":"CVE-2026-89992","revision":"0b8eede270734608b307b40a480c5c1c","records":[{"revision":"0b8eede270734608b307b40a480c5c1c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89992","aliases":[],"title":"cpuidle: dt_idle_genpd: kfree() the original name allocation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncpuidle: dt_idle_genpd: kfree() the original name allocation\n\ndt_idle_pd_alloc() kasprintf()s the full node path, then points\npd->name at kbasename() of that string. dt_idle_pd_free() kfree()s\npd->name, which is no longer the start of the allocation.\n\nCopy the basename instead.","state":0,"publishedAt":"2026-09-16T10:33:05.925+00:00","modifiedAt":"2026-10-19T08:56:06.466+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/cpuidle/dt_idle_genpd.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"9d976d6721dfb525b81ce981e1363c70c0975aab\",\n                            \"lessThan\": \"1312ae33b91430ec99e69cd3d47f0e50a4ebf54b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d976d6721dfb525b81ce981e1363c70c0975aab\",\n                            \"lessThan\": \"a38caa9ed0d5c61c17d88393b14b292199289c1f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d976d6721dfb525b81ce981e1363c70c0975aab\",\n                            \"lessThan\": \"09d002c8fb0261d35ce9d8a705de5db034ee90b8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d976d6721dfb525b81ce981e1363c70c0975aab\",\n                            \"lessThan\": \"b519dfce1998c323e54a56f911cf708d9ba0e076\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d976d6721dfb525b81ce981e1363c70c0975aab\",\n                            \"lessThan\": \"3394c7ba23336bdb7ece29127130fd01731d42d8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"9d976d6721dfb525b81ce981e1363c70c0975aab\",\n                            \"lessThan\": \"2b0ac85512b7f67479127b2713254490662eb13d\",\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/cpuidle/dt_idle_genpd.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.5\",\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":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":8.4,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/1312ae33b91430ec99e69cd3d47f0e50a4ebf54b","https://git.kernel.org/stable/c/a38caa9ed0d5c61c17d88393b14b292199289c1f","https://git.kernel.org/stable/c/09d002c8fb0261d35ce9d8a705de5db034ee90b8","https://git.kernel.org/stable/c/b519dfce1998c323e54a56f911cf708d9ba0e076","https://git.kernel.org/stable/c/3394c7ba23336bdb7ece29127130fd01731d42d8","https://git.kernel.org/stable/c/2b0ac85512b7f67479127b2713254490662eb13d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89992","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89992","identifiers":["CVE-2026-89992"]},"retained":false,"historicalAffected":[]}],"coverage":[]}