CVE-2026-98658 (GCVE-0-2026-98658)
Vulnerability from cvelistv5
Published
2026-10-18 15:44
Modified
2026-10-19 09:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: proximity: aw96103: validate firmware data length The firmware parser reads a length from the binary header and then uses it to walk six-byte register/value entries. A truncated firmware image can make the parser read beyond the copied firmware buffer. A value smaller than the four-byte count field also underflows, producing a very large length. Read the little-endian field with get_unaligned_le32(), as previously proposed by David Lechner. Validate the header size, reject an underflowed length, ensure the resulting payload is contained in the firmware image, and require it to contain whole register/value entries.
References
Impacted products
Vendor Product Version
Linux Linux Version: 07b241262dcad07671c444ca955903325de28e9e
Version: 07b241262dcad07671c444ca955903325de28e9e
Version: 07b241262dcad07671c444ca955903325de28e9e
Version: 07b241262dcad07671c444ca955903325de28e9e
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{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/proximity/aw96103.c"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: proximity: aw96103: validate firmware data length\n\nThe firmware parser reads a length from the binary header and then uses\nit to walk six-byte register/value entries. A truncated firmware image\ncan make the parser read beyond the copied firmware buffer. A value\nsmaller than the four-byte count field also underflows, producing a very\nlarge length.\n\nRead the little-endian field with get_unaligned_le32(), as previously\nproposed by David Lechner. Validate the header size, reject an\nunderflowed length, ensure the resulting payload is contained in the\nfirmware image, and require it to contain whole register/value entries."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:23:26.505Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/1a7c522a35477d70320bd64aba8e9de0c1058c6f"
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      "title": "iio: proximity: aw96103: validate firmware data length",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98658",
    "datePublished": "2026-10-18T15:44:12.196Z",
    "dateReserved": "2026-09-25T10:25:14.362Z",
    "dateUpdated": "2026-10-19T09:23:26.505Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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