{
  "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-2025-40242",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40242",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-04T15:31:31.497Z",
    "updatedAt": "2026-10-15T22:02:41.268Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "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": "gfs2: Fix unlikely race in gdlm_put_lock",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ngfs2: Fix unlikely race in gdlm_put_lock\n\nIn gdlm_put_lock(), there is a small window of time in which the\nDFL_UNMOUNT flag has been set but the lockspace hasn't been released,\nyet.  In that window, dlm may still call gdlm_ast() and gdlm_bast().\nTo prevent it from dereferencing freed glock objects, only free the\nglock if the lockspace has actually been released.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "d1340f80f0b8066321b499a376780da00560e857",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5fdc1474e678eea1700aa266c0b7c2c96f81dd0d"
            },
            {
              "version": "d1340f80f0b8066321b499a376780da00560e857",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4913592a3358f6ec366b8346b733d5e2360b08e1"
            },
            {
              "version": "d1340f80f0b8066321b499a376780da00560e857",
              "status": "affected",
              "versionType": "git",
              "lessThan": "279bde3bbb0ac0bad5c729dfa85983d75a5d7641"
            },
            {
              "version": "d1340f80f0b8066321b499a376780da00560e857",
              "status": "affected",
              "versionType": "git",
              "lessThan": "64c61b4ac645222fa7b724cef616c1f862a72a40"
            },
            {
              "version": "d1340f80f0b8066321b499a376780da00560e857",
              "status": "affected",
              "versionType": "git",
              "lessThan": "28c4d9bc0708956c1a736a9e49fee71b65deee81"
            },
            {
              "version": "6aa628c45875e7b8cca81ed9447a12a0e8f3504a",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "a97e75203733be0a4263a78fb7b29352be150c1c",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "3554b46204e67333e1fb8be0e93936fb08267c80",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5cff77b9827a956d076168b56775aad23bce87e4",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "8deedce385d220f90e435f534d71d27526273515",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "2225a5cd2fbc2ef0e0f78e585db3844f60416a39",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "02e838963fdaa6ce8570b5389aecdc6cf1fb40b0",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "01eb3106f43335fdc02111358dae80a5c3fd324d",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.4.284",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.5"
            },
            {
              "version": "4.9.283",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "4.14.247",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.15"
            },
            {
              "version": "4.19.207",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.4.148",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "5.10.67",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.11"
            },
            {
              "version": "5.13.19",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.14"
            },
            {
              "version": "5.14.6",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.15"
            },
            {
              "version": "6.1.168",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.131",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.56",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}