{
  "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-2026-53189",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-53189",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-25T08:39:01.708Z",
    "updatedAt": "2026-10-19T19:57:27.480Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "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/huge_memory: update file PMD counter before folio_put()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: update file PMD counter before folio_put()\n\n__split_huge_pmd_locked() updates the file/shmem RSS counter after\ndropping the PMD mapping's folio reference.  If folio_put() drops the last\nreference, mm_counter_file() can later read freed folio state via\nfolio_test_swapbacked().\n\nMove the counter update before folio_put().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "fadae2953072e9005c5f1d64e1049edb043494dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "84b3212b166b446faea27ebebb7161405ffceef9"
            },
            {
              "version": "fadae2953072e9005c5f1d64e1049edb043494dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "108963978a681c0c468d279cac2b930c27672877"
            },
            {
              "version": "fadae2953072e9005c5f1d64e1049edb043494dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "459771c9cf30f378bdbd30fc65d17f7eb931bb59"
            },
            {
              "version": "fadae2953072e9005c5f1d64e1049edb043494dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ae9d4caf6f133e884cf5fcda4982c493b35e5194"
            },
            {
              "version": "fadae2953072e9005c5f1d64e1049edb043494dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6c29a8ba084e89499ca77b947e07ae817f9c16ce"
            },
            {
              "version": "fadae2953072e9005c5f1d64e1049edb043494dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5f5b604e1e6bde4e889199168ee80fe8306d06ad"
            },
            {
              "version": "fadae2953072e9005c5f1d64e1049edb043494dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ed5b030931292c94133437ac5e5ff580e498eabd"
            },
            {
              "version": "fadae2953072e9005c5f1d64e1049edb043494dc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8d878059924f12c1bc24556a92ec56add74de3c8"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.19"
            },
            {
              "version": "5.10.259",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.210",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.176",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.143",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.94",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.36",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}