{
  "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-2025-40106",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40106",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-31T09:41:46.740Z",
    "updatedAt": "2026-05-11T21:42:37.892Z",
    "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": "comedi: fix divide-by-zero in comedi_buf_munge()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: fix divide-by-zero in comedi_buf_munge()\n\nThe comedi_buf_munge() function performs a modulo operation\n`async->munge_chan %= async->cmd.chanlist_len` without first\nchecking if chanlist_len is zero. If a user program submits a command with\nchanlist_len set to zero, this causes a divide-by-zero error when the device\nprocesses data in the interrupt handler path.\n\nAdd a check for zero chanlist_len at the beginning of the\nfunction, similar to the existing checks for !map and\nCMDF_RAWDATA flag. When chanlist_len is zero, update\nmunge_count and return early, indicating the data was\nhandled without munging.\n\nThis prevents potential kernel panics from malformed user commands.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4ffea48c69cb2b96a281cb7e5e42d706996631db"
            },
            {
              "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8f3e4cd9be4b47246ea73ce5e3e0fa2f57f0d10c"
            },
            {
              "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2670932f2465793fea1ef073e40883e8390fa4d9"
            },
            {
              "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6db19822512396be1a3e1e20c16c97270285ba1a"
            },
            {
              "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d4854eff25efb06d0d84c13e7129bbdba4125f8c"
            },
            {
              "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a4bb5d1bc2f238461bcbe5303eb500466690bb2c"
            },
            {
              "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "55520f65fd447e04099a2c44185453c18ea73b7e"
            },
            {
              "version": "ed9eccbe8970f6eedc1b978c157caf1251a896d4",
              "status": "affected",
              "versionType": "git",
              "lessThan": "87b318ba81dda2ee7b603f4f6c55e78ec3e95974"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.29",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.29"
            },
            {
              "version": "5.4.301",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.246",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.196",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.158",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.115",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.56",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.17.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.17.*"
            },
            {
              "version": "6.18",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}