{
  "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-2026-31614",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31614",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-24T14:42:34.153Z",
    "updatedAt": "2026-06-14T17:42:58.516Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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": "smb: client: fix off-by-8 bounds check in check_wsl_eas()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix off-by-8 bounds check in check_wsl_eas()\n\nThe bounds check uses (u8 *)ea + nlen + 1 + vlen as the end of the EA\nname and value, but ea_data sits at offset sizeof(struct\nsmb2_file_full_ea_info) = 8 from ea, not at offset 0.  The strncmp()\nlater reads ea->ea_data[0..nlen-1] and the value bytes follow at\nea_data[nlen+1..nlen+vlen], so the actual end is ea->ea_data + nlen + 1\n+ vlen.  Isn't pointer math fun?\n\nThe earlier check (u8 *)ea > end - sizeof(*ea) only guarantees the\n8-byte header is in bounds, but since the last EA is placed within 8\nbytes of the end of the response, the name and value bytes are read past\nthe end of iov.\n\nFix this mess all up by using ea->ea_data as the base for the bounds\ncheck.\n\nAn \"untrusted\" server can use this to leak up to 8 bytes of kernel heap\ninto the EA name comparison and influence which WSL xattr the data is\ninterpreted as.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7449d736bbbd160c76b01b8fcdf72f58a8757d4b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bfbc74df8bbe095b3ed68f6d4487b368af087890"
            },
            {
              "version": "ea41367b2a602f602ea6594fc4a310520dcc64f4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5cc0574c84aa73946ade587c41e81757b8b01cb5"
            },
            {
              "version": "ea41367b2a602f602ea6594fc4a310520dcc64f4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b2b76d09a64c538c57006180103fc1841e8cfa66"
            },
            {
              "version": "ea41367b2a602f602ea6594fc4a310520dcc64f4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ba3ad159aa61810bbe0acaf39578b1ebfb6f1a18"
            },
            {
              "version": "ea41367b2a602f602ea6594fc4a310520dcc64f4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a893f1757d9a4009e4a8d7ceb2312142fe29cea4"
            },
            {
              "version": "ea41367b2a602f602ea6594fc4a310520dcc64f4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3d8b9d06bd3ac4c6846f5498800b0f5f8062e53b"
            },
            {
              "version": "6.6.32",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.136"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.9",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.9"
            },
            {
              "version": "6.6.136",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.83",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.24",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0.1",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}