{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "54be1f6c1c37498bba557049df646cc239fa37e3"
            },
            {
              "fixed": "7507bd1885643d0461a6017767492450af1ce2a3"
            },
            {
              "fixed": "9ab46a13798a61d9d020b01d4e57efdabe6624fa"
            },
            {
              "fixed": "5baab40404a9393bcc0b7b8f1950bf2c307e0984"
            },
            {
              "fixed": "b1b741cf8e7ce1b91d937e23decd3d3358748700"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.0.0"
            },
            {
              "fixed": "6.12.109"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89636.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: clear ce-\u003etgthint in free_tgts()\n\nWhen free_tgts() frees all structures in ce-\u003etlist, ce-\u003etgthint\nis left pointing to one of the freed cache_dfs_tgt structures.\n\nIf ce-\u003etgthint is not reset before it is used later, it results\nin a use-after-free.\n\nSet ce-\u003etgthint to NULL in free_tgts() after the elements are\nfreed to reflect that no elements remain.",
  "id": "CVE-2026-89636",
  "modified": "2026-09-13T03:31:02.208058718Z",
  "published": "2026-09-11T19:45:30.283Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5baab40404a9393bcc0b7b8f1950bf2c307e0984"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7507bd1885643d0461a6017767492450af1ce2a3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ab46a13798a61d9d020b01d4e57efdabe6624fa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b1b741cf8e7ce1b91d937e23decd3d3358748700"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89636.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89636"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "smb: client: clear ce-\u003etgthint in free_tgts()"
}