{
  "cveId": "CVE-2025-40106",
  "url": "https://patchblox.com/security/cve/CVE-2025-40106",
  "summary": "CVE-2025-40106 is fixed in 18 products on 1 platform, first by DEBIAN-CVE-2025-40106, released October 31, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "comedi: fix divide-by-zero in comedi_buf_munge()",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  comedi: fix divide-by-zero in comedi_buf_munge()  The comedi_buf_munge() function performs a modulo operation \u0060async-\u003Emunge_chan %= async-\u003Ecmd.chanlist_len\u0060 without first checking if chanlist_len is zero. If a user program submits a command with chanlist_len set to zero, this causes a divide-by-zero error when the device processes data in the interrupt handler path.  Add a check for zero chanlist_len at the beginning of the function, similar to the existing checks for !map and CMDF_RAWDATA flag. When chanlist_len is zero, update munge_count and return early, indicating the data was handled without munging.  This prevents potential kernel panics from malformed user commands.",
  "published": "2025-10-31T10:15:50Z",
  "severity": "Moderate",
  "cvss": 5.5,
  "epss": 0.0021,
  "epssPercentile": 0.11197,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40106",
  "fixes": [
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      "released": "2026-02-11T14:05:07Z"
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      "released": "2026-02-12T11:26:05Z"
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  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
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}