{
  "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-2026-89615",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-89615",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-09-11T19:45:15.397Z",
    "updatedAt": "2026-10-19T08:49:47.839Z",
    "importedAt": "2026-10-24T01:58:35.090Z",
    "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": "fs/ntfs3: bound page_lcns[] index by the log record",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: bound page_lcns[] index by the log record\n\nThe copy_lcns loop and the redo shorten loop index page_lcns[] at j + i,\nwhere i runs up to the log record's lcns_follow. That count is checked only\nagainst the record's own length, not the target entry, so check_dp_table()\n(which validates the entry's lcns_follow) does not cover it: the copy_lcns\nentry may even be freshly allocated after that check, and find_dp() bounds j\nbut not i. A crafted record thus overflows page_lcns[] of an otherwise valid\nentry.\n\nAdd dp_range_ok() and reject, before each loop, any record whose run does\nnot fit the entry. These are the only two page_lcns[] accesses indexed by\nthe record rather than the entry, so together with the entry validation\nevery access is now bounded.\n\n[almaz.alexandrovich@paragon-software.com: original patch contained changes to the problem already handled, applied partly]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "b46acd6a6a627d876898e1c84d3f84902264b445",
              "status": "affected",
              "versionType": "git",
              "lessThan": "31fdd11f75da9823500168cecb07aa45130915a3"
            },
            {
              "version": "b46acd6a6a627d876898e1c84d3f84902264b445",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bb742d1030864c0fe140666f639428ba4e90b2ca"
            },
            {
              "version": "b46acd6a6a627d876898e1c84d3f84902264b445",
              "status": "affected",
              "versionType": "git",
              "lessThan": "61ca8cbbf68f77f25b699ed4358bd232f94ed43b"
            },
            {
              "version": "b46acd6a6a627d876898e1c84d3f84902264b445",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f4c1bc6d7331f344ffcea93c2a37badcbe15baa6"
            },
            {
              "version": "b46acd6a6a627d876898e1c84d3f84902264b445",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7ccb94901f38a062034b56b43c774050b113758f"
            },
            {
              "version": "b46acd6a6a627d876898e1c84d3f84902264b445",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1135ebc225996b3ac1a295652b19a0a706737a6c"
            },
            {
              "version": "b46acd6a6a627d876898e1c84d3f84902264b445",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6f7b9dbdc1b7520206abce0049bdd143eb536e75"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.15"
            },
            {
              "version": "5.15.221",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.188",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.157",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.109",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.50",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.2.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "version": "7.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}