{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "35ee34c0f6d578c9d245438ca29bf2e7024a5a65"
            },
            {
              "fixed": "069729282fbecfaa8a54062266c338ed23f08005"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5790b1fb3d672d9a1fe3881a7181dfdbe741568f"
            },
            {
              "fixed": "c480f8af173d5b19c6d9c4311df6bbe352face9e"
            },
            {
              "fixed": "5333e18e6b425fcc39c7fea89e3949a2a98bc5e4"
            },
            {
              "fixed": "76e0f85f650738d768449dbccbc7c55d05f5b609"
            },
            {
              "fixed": "1704aaaf5d22bc765c168402350d191e24e245bc"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "6.6.18"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.109"
            },
            {
              "fixed": "6.18.50"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "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-2026-89618.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\neventfs: Initialize ei-\u003echildren and ei-\u003elist in init_ei()\n\neventfs_create_dir() allocates the eventfs_inode and initializes it with\ninit_ei(). But this does not initialize the eventfs_inode list_heads. If\nthe eventfs_create_dir() fails due to memory pressure, it will call\nfree_ei() before it initialized the lists, and that checks to make sure\nthe eventfs_inode has no children. But because the list wasn't\ninitialized, it will give a false warning.\n\nFix it by moving the list initialization into init_ei().\n\n[ Rewrote change log ]",
  "id": "CVE-2026-89618",
  "modified": "2026-09-15T03:31:05.777467808Z",
  "published": "2026-09-11T19:45:17.397Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/069729282fbecfaa8a54062266c338ed23f08005"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1704aaaf5d22bc765c168402350d191e24e245bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5333e18e6b425fcc39c7fea89e3949a2a98bc5e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/76e0f85f650738d768449dbccbc7c55d05f5b609"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c480f8af173d5b19c6d9c4311df6bbe352face9e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89618.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89618"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "eventfs: Initialize ei-\u003echildren and ei-\u003elist in init_ei()"
}