wifi: iwlwifi: mvm: don't trust firmware n_channels

{
  "id": "3b7e983a4849ab9069208ddddcd8738a25b7418902a22c5f8ede81889cabaa19",
  "url": "https://osv.dev/vulnerability/CVE-2023-53589",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "wifi: iwlwifi: mvm: don't trust firmware n_channels",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: don't trust firmware n_channels If the firmware sends us a corrupted MCC response with n_channels much larger than the command response can be, we might copy far too much (uninitialized) memory and even crash if the n_channels is large enough to make it run out of the one page allocated for the FW response. Fix that by checking the lengths. Doing a < comparison would be sufficient, but the firmware should be doing it correctly, so check more strictly.",
    "evidence": "osv:CVE-2023-53589",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.244",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.181",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.113",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.30",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.3.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-53589",
      "aliases": [
        "CVE-2023-53589"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
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                  "fixed": "05ad5a4d421ce65652fcb24d46b7e273130240d6"
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                  "fixed": "557ba100d8cf3661ff8d71c0b4a2cba8db555ec2"
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                {
                  "fixed": "c176f03350954b795322de0bfe1d7b514db41f45"
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                {
                  "fixed": "682b6dc29d98e857e6ca4bbc077c7dc2899b7473"
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              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53589.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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                  "introduced": "4.1.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53589.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.731065126Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/05ad5a4d421ce65652fcb24d46b7e273130240d6",
        "https://git.kernel.org/stable/c/557ba100d8cf3661ff8d71c0b4a2cba8db555ec2",
        "https://git.kernel.org/stable/c/682b6dc29d98e857e6ca4bbc077c7dc2899b7473",
        "https://git.kernel.org/stable/c/c176f03350954b795322de0bfe1d7b514db41f45",
        "https://git.kernel.org/stable/c/d0d39bed9e95f27a246be91c5929254ac043ed30",
        "https://git.kernel.org/stable/c/e519a404a5bbba37693cb10fa61794a5fce4fd9b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53589.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53589",
        "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/2023/53xxx/CVE-2023-53589.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-53589",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521070,
  "published_at": "2025-10-04T15:44:04.047+00:00"
}