{
  "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-2025-39795",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-39795",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-09-12T15:59:32.037Z",
    "updatedAt": "2026-10-15T01:08:22.910Z",
    "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": "block: avoid possible overflow for chunk_sectors check in blk_stack_limits()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: avoid possible overflow for chunk_sectors check in blk_stack_limits()\n\nIn blk_stack_limits(), we check that the t->chunk_sectors value is a\nmultiple of the t->physical_block_size value.\n\nHowever, by finding the chunk_sectors value in bytes, we may overflow\nthe unsigned int which holds chunk_sectors, so change the check to be\nbased on sectors.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "22ada802ede89829dd010a317d9b812b7df7111a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "418751910044649baa2b424ea31cce3fc4dcc253"
            },
            {
              "version": "22ada802ede89829dd010a317d9b812b7df7111a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8b3ce085b52e674290cbfdd07034e7653ffbe4dc"
            },
            {
              "version": "22ada802ede89829dd010a317d9b812b7df7111a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "31f2f080898e50cbf2bae62d35f9f2a997547b38"
            },
            {
              "version": "22ada802ede89829dd010a317d9b812b7df7111a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3b9d69f0e68aa6b0acd9791c45d445154a8c66e9"
            },
            {
              "version": "22ada802ede89829dd010a317d9b812b7df7111a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "46aa80ef49594ed7de685ecbc673b291e9a2c159"
            },
            {
              "version": "22ada802ede89829dd010a317d9b812b7df7111a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5e276e6ff9aacf8901b9c3265c3cdd2568c9fff2"
            },
            {
              "version": "22ada802ede89829dd010a317d9b812b7df7111a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "14beeef4aafecc8a41de534e31fb5be94739392f"
            },
            {
              "version": "22ada802ede89829dd010a317d9b812b7df7111a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "448dfecc7ff807822ecd47a5c052acedca7d09e8"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.10",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.10"
            },
            {
              "version": "5.10.241",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.190",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.149",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.103",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.43",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.15.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "version": "6.16.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.16.*"
            },
            {
              "version": "6.17",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}