{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "9d976d6721dfb525b81ce981e1363c70c0975aab"
            },
            {
              "fixed": "1312ae33b91430ec99e69cd3d47f0e50a4ebf54b"
            },
            {
              "fixed": "a38caa9ed0d5c61c17d88393b14b292199289c1f"
            },
            {
              "fixed": "09d002c8fb0261d35ce9d8a705de5db034ee90b8"
            },
            {
              "fixed": "b519dfce1998c323e54a56f911cf708d9ba0e076"
            },
            {
              "fixed": "3394c7ba23336bdb7ece29127130fd01731d42d8"
            },
            {
              "fixed": "2b0ac85512b7f67479127b2713254490662eb13d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "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"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89992.json"
  },
  "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.",
  "id": "CVE-2026-89992",
  "modified": "2026-09-18T03:30:35.043218761Z",
  "published": "2026-09-16T10:33:05.925Z",
  "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"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "cpuidle: dt_idle_genpd: kfree() the original name allocation"
}