ghsa-vp46-h7c5-rj5w
Vulnerability from github
Published
2025-10-01 12:30
Modified
2025-10-01 12:30
Details

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla4xxx: Add length check when parsing nlattrs

There are three places that qla4xxx parses nlattrs:

  • qla4xxx_set_chap_entry()

  • qla4xxx_iface_set_param()

  • qla4xxx_sysfs_ddb_set_param()

and each of them directly converts the nlattr to specific pointer of structure without length checking. This could be dangerous as those attributes are not validated and a malformed nlattr (e.g., length 0) could result in an OOB read that leaks heap dirty data.

Add the nla_len check before accessing the nlattr data and return EINVAL if the length check fails.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53456"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-01T12:15:45Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla4xxx: Add length check when parsing nlattrs\n\nThere are three places that qla4xxx parses nlattrs:\n\n - qla4xxx_set_chap_entry()\n\n - qla4xxx_iface_set_param()\n\n - qla4xxx_sysfs_ddb_set_param()\n\nand each of them directly converts the nlattr to specific pointer of\nstructure without length checking. This could be dangerous as those\nattributes are not validated and a malformed nlattr (e.g., length 0) could\nresult in an OOB read that leaks heap dirty data.\n\nAdd the nla_len check before accessing the nlattr data and return EINVAL if\nthe length check fails.",
  "id": "GHSA-vp46-h7c5-rj5w",
  "modified": "2025-10-01T12:30:29Z",
  "published": "2025-10-01T12:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53456"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25feffb3fbd51ae81d92c65cebc0e932663828b3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47cd3770e31df942e2bb925a9a855c79ed0662eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/47f3be62eab50b8cd7e1ae5fc2c4dae687497c34"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4ed21975311247bb84e82298eeb359ec0a0fa84d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5925e224cc6edfef57b20447f18323208461309b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6d65079c69dc1feb817ed71f5bd15e83a7d6832d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b018c0440b871d8b001c996e95fa4538bd292de6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cfa6a1a79ed6d336fac7a5d87eb5471e4401829f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f61fc650c47849637fa1771a31a11674c824138a"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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