{"id":"CVE-2026-89992","published":"2026-09-16T11:17:10.350","lastModified":"2026-09-16T15:18:22.920","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.","cvssScore":8.4,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/09d002c8fb0261d35ce9d8a705de5db034ee90b8","tags":[]},{"url":"https://git.kernel.org/stable/c/1312ae33b91430ec99e69cd3d47f0e50a4ebf54b","tags":[]},{"url":"https://git.kernel.org/stable/c/2b0ac85512b7f67479127b2713254490662eb13d","tags":[]},{"url":"https://git.kernel.org/stable/c/3394c7ba23336bdb7ece29127130fd01731d42d8","tags":[]},{"url":"https://git.kernel.org/stable/c/a38caa9ed0d5c61c17d88393b14b292199289c1f","tags":[]},{"url":"https://git.kernel.org/stable/c/b519dfce1998c323e54a56f911cf708d9ba0e076","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The vulnerability in the Linux kernel's cpuidle module allows for a potential out-of-bounds free error, leading to a denial of service or possibly other kernel memory issues.","exploitability":"Exploitation requires kernel-level access and specific conditions, making it relatively difficult. Precondition is the presence of a vulnerable kernel version.","blast_radius":"If exploited, the impact could be limited to the affected system experiencing a denial of service, but the exact extent depends on the system's role and configuration.","remediation":"Upgrade to the fixed version 5.19.60 or later.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["dos","kernel","memory"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-10-02T08:50:12.383Z"}}