wifi: iwlwifi: fix 22000 series SMEM parsing

{
  "id": "312cba8857b1f54a9096c638f55c1ecba6c1076e6f3e5a14d2fd672d63415255",
  "url": "https://osv.dev/vulnerability/CVE-2026-43172",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: iwlwifi: fix 22000 series SMEM parsing",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix 22000 series SMEM parsing If the firmware were to report three LMACs (which doesn't exist in hardware) then using \"fwrt->smem_cfg.lmac[2]\" is an overrun of the array. Reject such and use IWL_FW_CHECK instead of WARN_ON in this function.",
    "evidence": "osv:CVE-2026-43172",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "evidence": "/affected/1/ranges"
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            "value": "6.12.114",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.18.16",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.19.6",
            "evidence": "/affected/1/ranges"
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        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-43172",
      "aliases": [
        "CVE-2026-43172"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
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      "affected": [
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                  "fixed": "5cc021586420c5e13acc65da5bf73edd451e2c3e"
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              "type": "ECOSYSTEM",
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                  "introduced": "5.8.0"
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            "name": "Kernel",
            "ecosystem": "Linux"
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      ],
      "modified": "2026-10-28T02:30:37.530721392Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1d49a42717bdc8de77eabeb5b7d3e88d141ffea9",
        "https://git.kernel.org/stable/c/2b4b1510aaaf5b9fb57327ecffc20c055f61f205",
        "https://git.kernel.org/stable/c/58192b9ce09b0f0f86e2036683bd542130b91a98",
        "https://git.kernel.org/stable/c/5cc021586420c5e13acc65da5bf73edd451e2c3e",
        "https://git.kernel.org/stable/c/b23c7cd616a6a113363be707b7b9e4bc41b18a07",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43172.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-43172",
        "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/2026/43xxx/CVE-2026-43172.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-43172",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 504936,
  "published_at": "2026-05-06T11:27:47.358+00:00"
}