ghsa-j5px-w2f8-7x3g
Vulnerability from github
Published
2025-10-07 18:31
Modified
2025-10-07 18:31
Details

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

vdpa: Add features attr to vdpa_nl_policy for nlattr length check

The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops.

That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.

This patch adds the missing nla_policy for vdpa features attr to avoid such bugs.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-53652"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-07T16:15:48Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa: Add features attr to vdpa_nl_policy for nlattr length check\n\nThe vdpa_nl_policy structure is used to validate the nlattr when parsing\nthe incoming nlmsg. It will ensure the attribute being described produces\na valid nlattr pointer in info-\u003eattrs before entering into each handler\nin vdpa_nl_ops.\n\nThat is to say, the missing part in vdpa_nl_policy may lead to illegal\nnlattr after parsing, which could lead to OOB read just like CVE-2023-3773.\n\nThis patch adds the missing nla_policy for vdpa features attr to avoid\nsuch bugs.",
  "id": "GHSA-j5px-w2f8-7x3g",
  "modified": "2025-10-07T18:31:10Z",
  "published": "2025-10-07T18:31:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53652"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/44b508cc96889e61799cc0fc6c00766a54f3ab5a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/645d17e06c502e71b880b2b854930e5a64014640"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/79c8651587504ba263d2fd67fd4406240fb21f69"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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