{
  "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-2026-72105",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-72105",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-08-15T05:52:48.099Z",
    "updatedAt": "2026-10-19T21:19:28.267Z",
    "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": "dm-log: fix a bitset_size overflow on 32bit machines",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm-log: fix a bitset_size overflow on 32bit machines\n\nCommit c20e36b7631d (\"dm log: fix out-of-bounds write due to\nregion_count overflow\") made sure that region_count could fit in an\nunsigned int. But the bitmap memory isn't allocated based on\nregion_count. It uses bitset_size (a size_t variable). The first step of\ncalculating bitset_size is to set it to region_count, rounded up to a\nmultiple of BITS_PER_LONG. If region_size is less than BITS_PER_LONG\nsmaller than UINT_MAX, it will get rounded up to 2^32. On a 32bit\narchitecture, this will make bitset_size wrap around to 0 and fail,\ndespite region_count being valid.\n\nSince bitset_size gets divided by 8, it can hold any valid region_count.\nIt just needs a special case to handle the rollover. If it is 0, the\nvalue rolled over, and bitset size should be set to the number of bytes\nneeded to hold 2^32 bits.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "44ab8875ae4a2842bde2d756bed195d375e0debb",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cdc4ddf9db2cb79f4ab86b1a509b7ac21b0b6cf5"
            },
            {
              "version": "defe483e47173768c227532694dc78cb65db5f09",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4b0de5a3ac1fd42acb0dc1f80ac5747e3287d723"
            },
            {
              "version": "3ec74da927b4e171a6fc0e77b1188ba4d019af51",
              "status": "affected",
              "versionType": "git",
              "lessThan": "567602fa72d57169365cbc589e0b8c3be900636d"
            },
            {
              "version": "d4ac87567f86a55c3c92e9a5144dcd943a9772a1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d05e0edfecf5260e6dddd28b2f0cce02bfc6ed7a"
            },
            {
              "version": "12bd5b88e91a02785244ff1d20fb157e96e9cdc8",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1c3412b584e1fb6c665ff33ba7259253bc0082cb"
            },
            {
              "version": "b455903eed4558982be0811f5b7f44f6bbc4ff57",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e0b0163a65758ec3a2361ae1cea407898c27f21e"
            },
            {
              "version": "c20e36b7631d83e7535877f08af8b0af72c44b1a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "79feb87ab2396d49b9b65e4bb815d33cc71cba47"
            },
            {
              "version": "c20e36b7631d83e7535877f08af8b0af72c44b1a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9743132a41f4d9d0e54c5f2adcb821b04796bab1"
            },
            {
              "version": "4ec8323b9f0764a14d532b1ae9b87f8a9fecb867",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.258",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.261"
            },
            {
              "version": "5.15.209",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.212"
            },
            {
              "version": "6.1.175",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.178"
            },
            {
              "version": "6.6.141",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.145"
            },
            {
              "version": "6.12.91",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12.97"
            },
            {
              "version": "6.18.33",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.18.40"
            },
            {
              "version": "7.0.10",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "7.1"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "7.1",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "7.1"
            },
            {
              "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": "*"
            }
          ]
        }
      ]
    }
  }
}