CVE-2026-98658 (GCVE-0-2026-98658)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:44 – Updated: 2026-10-19 09:23
VLAI
Title
iio: proximity: aw96103: validate firmware data length
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.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7056 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 07b241262dcad07671c444ca955903325de28e9e , < 4a9b9f2d4e26589afd0ac099c8e5593170dd5ac7 (git)
Affected: 07b241262dcad07671c444ca955903325de28e9e , < 6501b032be217ecf47e793b78a05078cf0b604ad (git)
Affected: 07b241262dcad07671c444ca955903325de28e9e , < 815ae0b73b69ace207b6bbf7ef428b06491c3ddb (git)
Affected: 07b241262dcad07671c444ca955903325de28e9e , < 1a7c522a35477d70320bd64aba8e9de0c1058c6f (git)
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Linux Linux Affected: 6.12
Unaffected: 0 , < 6.12 (semver)
Unaffected: 6.12.113 , ≤ 6.12.* (semver)
Unaffected: 6.18.56 , ≤ 6.18.* (semver)
Unaffected: 7.2.10 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/iio/proximity/aw96103.c"
          ],
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              "negate": false,
              "operator": "OR"
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          "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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    "datePublished": "2026-10-18T15:44:12.196Z",
    "dateReserved": "2026-09-25T10:25:14.362Z",
    "dateUpdated": "2026-10-19T09:23:26.505Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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      "date": "2026-10-25",
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      "percentile": "0.09756"
    },
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      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-98658.json",
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          }
        ],
        "id": "CVE-2026-98658",
        "lastModified": "2026-10-19T10:19:30.227",
        "metrics": {},
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  }
}



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