{
  "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-2024-42131",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-42131",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-07-30T07:46:26.872Z",
    "updatedAt": "2026-10-15T00:47:58.558Z",
    "importedAt": "2026-10-24T01:57:16.009Z",
    "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": "mm: avoid overflows in dirty throttling logic",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: avoid overflows in dirty throttling logic\n\nThe dirty throttling logic is interspersed with assumptions that dirty\nlimits in PAGE_SIZE units fit into 32-bit (so that various multiplications\nfit into 64-bits).  If limits end up being larger, we will hit overflows,\npossible divisions by 0 etc.  Fix these problems by never allowing so\nlarge dirty limits as they have dubious practical value anyway.  For\ndirty_bytes / dirty_background_bytes interfaces we can just refuse to set\nso large limits.  For dirty_ratio / dirty_background_ratio it isn't so\nsimple as the dirty limit is computed from the amount of available memory\nwhich can change due to memory hotplug etc.  So when converting dirty\nlimits from ratios to numbers of pages, we just don't allow the result to\nexceed UINT_MAX.\n\nThis is root-only triggerable problem which occurs when the operator\nsets dirty limits to >16 TB.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "2da02997e08d3efe8174c7a47696e6f7cbe69ba9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2b2d2b8766db028bd827af34075f221ae9e9efff"
            },
            {
              "version": "2da02997e08d3efe8174c7a47696e6f7cbe69ba9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4d3817b64eda07491bdd86a234629fe0764fb42a"
            },
            {
              "version": "2da02997e08d3efe8174c7a47696e6f7cbe69ba9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7a49389771ae7666f4dc3426e2a4594bf23ae290"
            },
            {
              "version": "2da02997e08d3efe8174c7a47696e6f7cbe69ba9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a25e8536184516b55ef89ab91dd2eea429de28d2"
            },
            {
              "version": "2da02997e08d3efe8174c7a47696e6f7cbe69ba9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c83ed422c24f0d4b264f89291d4fabe285f80dbc"
            },
            {
              "version": "2da02997e08d3efe8174c7a47696e6f7cbe69ba9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bd16a7ee339aef3ee4c90cb23902afb6af379ea0"
            },
            {
              "version": "2da02997e08d3efe8174c7a47696e6f7cbe69ba9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8e0b5e7f2895eccef5c2a0018b589266f90c4805"
            },
            {
              "version": "2da02997e08d3efe8174c7a47696e6f7cbe69ba9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "385d838df280eba6c8680f9777bfa0d0bfe7e8b2"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.29",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.29"
            },
            {
              "version": "4.19.320",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.282",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.222",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.163",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.98",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.39",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.9.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.9.*"
            },
            {
              "version": "6.10",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}