{"id":"CVE-2026-89992","summary":"cpuidle: dt_idle_genpd: kfree() the original name allocation","details":"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-\u003ename at kbasename() of that string. dt_idle_pd_free() kfree()s\npd-\u003ename, which is no longer the start of the allocation.\n\nCopy the basename instead.","modified":"2026-09-18T03:48:34.638348541Z","published":"2026-09-16T10:33:05.925Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89992.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/09d002c8fb0261d35ce9d8a705de5db034ee90b8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1312ae33b91430ec99e69cd3d47f0e50a4ebf54b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2b0ac85512b7f67479127b2713254490662eb13d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3394c7ba23336bdb7ece29127130fd01731d42d8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a38caa9ed0d5c61c17d88393b14b292199289c1f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b519dfce1998c323e54a56f911cf708d9ba0e076"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89992.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89992"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9d976d6721dfb525b81ce981e1363c70c0975aab"},{"fixed":"1312ae33b91430ec99e69cd3d47f0e50a4ebf54b"},{"fixed":"a38caa9ed0d5c61c17d88393b14b292199289c1f"},{"fixed":"09d002c8fb0261d35ce9d8a705de5db034ee90b8"},{"fixed":"b519dfce1998c323e54a56f911cf708d9ba0e076"},{"fixed":"3394c7ba23336bdb7ece29127130fd01731d42d8"},{"fixed":"2b0ac85512b7f67479127b2713254490662eb13d"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89992.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.18.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.51"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89992.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}