{
  "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-2026-89485",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89485",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T19:43:39.403Z",
    "updatedAt": "2026-10-19T08:47:35.868Z",
    "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": "lockd: pin next file across nlm_inspect_file lock-drop",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nlockd: pin next file across nlm_inspect_file lock-drop\n\nnlm_traverse_files() pins the current file with f_count++ across\na mutex_unlock for nlm_inspect_file(), but nothing pins the saved\nnext pointer.  A concurrent nlm_release_file() can kfree the next\nfile during the unlock window, and the iterator dereferences freed\nmemory on the next loop step.\n\nPin both current and next before the lock-drop.  Advance by\nswapping the pinned cursors at the end of each iteration so next\nis always held alive across the unlock.\n\nAlways call nlm_file_release() after dropping the iteration pin,\nregardless of whether the file matched the predicate.  Use\nnlm_file_inuse(), which does a live walk of the inode lock list,\nrather than the cached f_locks field, so skipped files that never\nran nlm_inspect_file() are evaluated correctly.\n\nBecause every file in a hash bucket is now pinned and released,\nfiles skipped by the is_failover_file predicate that have no\nlocks, blocks, shares, or external references are deleted during\ntraversal.  The old code never evaluated skipped files for\ncleanup.  The new behavior is intentional: such files are stale\nand should not persist in the table.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "01df9c5e918ae5559f2d96da0143f8bfbb9e6171",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e3c413f789eaf0170275c7eba523ead73d963f30"
            },
            {
              "version": "01df9c5e918ae5559f2d96da0143f8bfbb9e6171",
              "status": "affected",
              "versionType": "git",
              "lessThan": "08a455f87b14c7ff22ae3fdadda62a796a3a5572"
            },
            {
              "version": "01df9c5e918ae5559f2d96da0143f8bfbb9e6171",
              "status": "affected",
              "versionType": "git",
              "lessThan": "550c19222c7132c888e23c9d89079ba1c9bc4cca"
            },
            {
              "version": "01df9c5e918ae5559f2d96da0143f8bfbb9e6171",
              "status": "affected",
              "versionType": "git",
              "lessThan": "350087f231c11efcd288c310707c40eab63ca583"
            },
            {
              "version": "01df9c5e918ae5559f2d96da0143f8bfbb9e6171",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c24bdb7df2f34bdc38ca8a73796f5acb40f1830c"
            },
            {
              "version": "01df9c5e918ae5559f2d96da0143f8bfbb9e6171",
              "status": "affected",
              "versionType": "git",
              "lessThan": "41f0a6d31615fcae261bf28a0aa50050dc93a401"
            },
            {
              "version": "01df9c5e918ae5559f2d96da0143f8bfbb9e6171",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e999a88133654c6dfc68487fb49da5f20dfa2d4f"
            },
            {
              "version": "01df9c5e918ae5559f2d96da0143f8bfbb9e6171",
              "status": "affected",
              "versionType": "git",
              "lessThan": "526c49cff3f72c3ec74752016380c7567040581b"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.18"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}