{
  "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-2026-72159",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-72159",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:53:28.205Z",
    "updatedAt": "2026-08-17T05:09:19.690Z",
    "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": "ocfs2: reject non-inline dinodes with i_size and zero i_clusters",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: reject non-inline dinodes with i_size and zero i_clusters\n\nOn a volume mounted without OCFS2_FEATURE_INCOMPAT_SPARSE_ALLOC, a\nnon-inline regular file with non-zero i_size and zero i_clusters is\nstructurally malformed: the extent map declares no allocated clusters yet\nthe size header claims content exists.  Keep rejecting that shape, but\nexpress it through a shared predicate so the same invariant is available\nto normal inode reads and online filecheck.\n\nThe same zero-cluster shape is also malformed for non-inline directories. \nocfs2 directory growth allocates backing storage before advancing i_size,\nand ocfs2_dir_foreach_blk_el() later walks until ctx->pos reaches\ni_size_read(inode).  A forged directory dinode with a huge i_size and no\nclusters would repeatedly fail on holes while advancing through the\nclaimed size.\n\nSparse regular files remain exempt: on sparse-alloc volumes, truncate can\nlegitimately grow i_size without allocating clusters.  System inodes and\ninline-data dinodes also retain their separate storage rules.\n\nMirror the check in ocfs2_filecheck_validate_inode_block() as well. \nfilecheck reports through its own error namespace, so malformed\nsize/cluster state is logged as a filecheck invalid-inode result rather\nthan via ocfs2_error(), but it must not proceed into\nocfs2_populate_inode().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "b657c95c11088d77fc1bfc9c84d940f778bf9d12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "416d3e5f8a30ed04fe21ba7dc73c2841c3b56265"
            },
            {
              "version": "b657c95c11088d77fc1bfc9c84d940f778bf9d12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ed0f938f946f16b772e99cb8c277ab57828e5be4"
            },
            {
              "version": "b657c95c11088d77fc1bfc9c84d940f778bf9d12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "83f6756a7b71adec0a41ae68e079a38906d59c6c"
            },
            {
              "version": "b657c95c11088d77fc1bfc9c84d940f778bf9d12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "38c1ef7ce50eb4af0f89038b8aba12396ddb9233"
            },
            {
              "version": "b657c95c11088d77fc1bfc9c84d940f778bf9d12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d837068eefbc2651fe5789bf75a0f945710f7b8e"
            },
            {
              "version": "b657c95c11088d77fc1bfc9c84d940f778bf9d12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2174c68f623b74bd8690a4a6a4a52882d8ac3dc3"
            },
            {
              "version": "b657c95c11088d77fc1bfc9c84d940f778bf9d12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3bfeb436d4be6a2beb56cab344770e93e6b07260"
            },
            {
              "version": "b657c95c11088d77fc1bfc9c84d940f778bf9d12",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7ebc672fab7a76e1e47e0f2fc1ee48118d27fde4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.29",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.29"
            },
            {
              "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": "7.1.5",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.1.*"
            },
            {
              "version": "7.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}