{
  "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-2026-64361",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64361",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-07-25T08:50:17.345Z",
    "updatedAt": "2026-08-17T04:54:07.849Z",
    "importedAt": "2026-10-24T01:58:25.636Z",
    "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": "hfs/hfsplus: fix u32 overflow in check_and_correct_requested_length",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfs/hfsplus: fix u32 overflow in check_and_correct_requested_length\n\ncheck_and_correct_requested_length() compares (off + len) against\nnode_size using u32 arithmetic.  When the caller passes a large len\nvalue (e.g. from an underflowed subtraction in hfs_brec_remove()),\noff + len can wrap past 2^32 and produce a small result, causing the\nbounds check to pass when it should fail.\n\nFor example, with off=14 and len=0xFFFFFFF2 (underflowed from\ndata_off - keyoffset - size in hfs_brec_remove), off + len wraps to 6,\nwhich is less than a typical node_size of 512, so the check passes and\nthe subsequent memmove reads ~4GB past the node buffer.\n\nFix this by widening the addition to u64 before comparing against\nnode_size.  This prevents the u32 wrap while keeping the logic\nstraightforward.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "67ecc81f6492275c9c54280532f558483c99c90e",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c8dd112173c02adf539fe2ad34a45f5e0068780d"
            },
            {
              "version": "a1a60e79502279f996e55052f50cc14919020475",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fc9d1447ca3cdc78d2e4ace1ce1f3a7c77ca08b1"
            },
            {
              "version": "fe2891a9c43ab87d1a210d61e6438ca6936e2f62",
              "status": "affected",
              "versionType": "git",
              "lessThan": "671c3fcc2ad31c1311ea6414382a2d95104ae1b9"
            },
            {
              "version": "384a66b89f9540a9a8cb0f48807697dfabaece4c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b6a481642ea1977be2f84dc08c5affd742c177e7"
            },
            {
              "version": "efc095b35b23297e419c2ab4fc1ed1a8f0781a29",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7399c3baee7bb622a92f0b895cd4d3009a693f2b"
            },
            {
              "version": "a431930c9bac518bf99d6b1da526a7f37ddee8d8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "607217f7ad419b53926f71e3f75001813bbc08ad"
            },
            {
              "version": "a431930c9bac518bf99d6b1da526a7f37ddee8d8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c25d3c931a63e762fcaa9cb125b901c53b62403f"
            },
            {
              "version": "a431930c9bac518bf99d6b1da526a7f37ddee8d8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "966cb76fb2857a4242cab6ea2ea17acf818a3da7"
            },
            {
              "version": "e7d2dc2421e821e4045775e6dc226378328de6f6",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "fc7f732984ec91f30be3e574e0644066d07f2b78",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "eec522fd0d28106b14a59ab2d658605febe4a3bb",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.241",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.261"
            },
            {
              "version": "5.15.190",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.212"
            },
            {
              "version": "6.1.149",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.178"
            },
            {
              "version": "6.6.103",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.145"
            },
            {
              "version": "6.12.43",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.97"
            },
            {
              "version": "5.4.297",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.5"
            },
            {
              "version": "6.15.11",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.16"
            },
            {
              "version": "6.16.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.17"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.17",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.17"
            },
            {
              "version": "5.10.261",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.212",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.178",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.145",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.97",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.1.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}