UnratedFix available

iio: proximity: aw96103: validate firmware data length

Type: advisorySources: OSV

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.

Products: Kernel
Affected versions: Not specified
Fixed versions: 6.12.113, 6.18.56, 7.2.10
CVEs: CVE-2026-98658
Confirmed fixed CVEs: Not specified
Updated in this feed: 5 Nov 2026, 01:51 UTC · Revision 1

Source evidence

iio: proximity: aw96103: validate firmware data length

core-osv · Original source

Published 18 Oct 2026, 15:44 UTC

osv:CVE-2026-98658

Kernel

Fixed versions: 6.12.113, 6.18.56, 7.2.10

Complete source record

{
  "id": "5127abe2a4927ecac9461eade2a5a1e9a4485cc2305ecc689415c6c8cea897ef",
  "url": "https://osv.dev/vulnerability/CVE-2026-98658",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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.",
    "evidence": "osv:CVE-2026-98658",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.113",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.56",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-98658",
      "aliases": [
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      "affected": [
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              "type": "ECOSYSTEM",
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                  "introduced": "6.13.0"
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                {
                  "fixed": "6.18.56"
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            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
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                {
                  "fixed": "7.2.10"
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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      ],
      "modified": "2026-10-28T02:30:41.543391439Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1a7c522a35477d70320bd64aba8e9de0c1058c6f",
        "https://git.kernel.org/stable/c/4a9b9f2d4e26589afd0ac099c8e5593170dd5ac7",
        "https://git.kernel.org/stable/c/6501b032be217ecf47e793b78a05078cf0b604ad",
        "https://git.kernel.org/stable/c/815ae0b73b69ace207b6bbf7ef428b06491c3ddb",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98658.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-98658",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98658.json"
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    },
    "related_cves": [
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        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 509228,
  "published_at": "2026-10-18T15:44:12.196+00:00"
}