{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2026-89643",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89643",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T19:45:35.523Z",
    "updatedAt": "2026-10-19T08:50:15.077Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "audit: avoid dropping live tree ref on fsnotify rule autoremove",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\naudit: avoid dropping live tree ref on fsnotify rule autoremove\n\naudit_del_rule() is used for both netlink deletion templates and internal\nfsnotify autoremove.  The former passes a parsed template which owns a\ntemporary tree reference; the latter passes the installed entry itself.\n\nThe unconditional audit_put_tree() at the end of audit_del_rule() assumes\nthe template case.  For mixed AUDIT_DIR plus AUDIT_EXE rules, an fsnotify\nautoremove event therefore drops the installed rule's live tree reference.\nRepeating this across rules sharing the same tree can free the tree while\nanother rule still references it, and a later autoremove dereferences the\nfreed pathname while comparing rules.\n\nMove the temporary-tree put to audit_rule_change(), the caller that owns\ndeletion templates.  Keep it in the AUDIT_DEL_RULE cleanup so both\nsuccessful deletion and -ENOENT still release the parser-owned tree.\n\n[PM: dropped unnecessary comment for line length reasons]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9cac21f8eb82675ed19fb955b8bbb9dd14cc3d58"
            },
            {
              "version": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b322cc7adcd2e6ec1594d187533a126506ab545c"
            },
            {
              "version": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "695c85dc345a4e0292739f004c261bedef3f27e6"
            },
            {
              "version": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "01b0ec8c397be65ff710777c97017ca1de56ef8e"
            },
            {
              "version": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cf37b61b5420fd4600fe78cf8c24da6e4d9bfe28"
            },
            {
              "version": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "636a99bab36ba27515363d325866c0273ac83b3e"
            },
            {
              "version": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "583cf579b32d99e3fe4e9c8ecc4d852e3708fbec"
            },
            {
              "version": "34d99af52ad40bd498ba66970579a5bc1fb1a3bc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "783f0f0974c156aca630f4ffff248671082a098d"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.3",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.3"
            },
            {
              "version": "5.10.270",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.109",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.50",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}