ghsa-fh27-hfj9-ccqv
Vulnerability from github
Published
2025-10-04 18:31
Modified
2025-10-04 18:31
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53589"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-04T16:15:55Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: iwlwifi: mvm: don\u0027t trust firmware n_channels\n\nIf the firmware sends us a corrupted MCC response with\nn_channels much larger than the command response can be,\nwe might copy far too much (uninitialized) memory and\neven crash if the n_channels is large enough to make it\nrun out of the one page allocated for the FW response.\n\nFix that by checking the lengths. Doing a \u003c comparison\nwould be sufficient, but the firmware should be doing\nit correctly, so check more strictly.",
  "id": "GHSA-fh27-hfj9-ccqv",
  "modified": "2025-10-04T18:31:16Z",
  "published": "2025-10-04T18:31:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53589"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/05ad5a4d421ce65652fcb24d46b7e273130240d6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/557ba100d8cf3661ff8d71c0b4a2cba8db555ec2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/682b6dc29d98e857e6ca4bbc077c7dc2899b7473"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c176f03350954b795322de0bfe1d7b514db41f45"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d0d39bed9e95f27a246be91c5929254ac043ed30"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e519a404a5bbba37693cb10fa61794a5fce4fd9b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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