ghsa-95cm-jx47-9cpv
Vulnerability from github
Published
2024-06-19 15:30
Modified
2025-09-17 21:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Details

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

bpf: Fix verifier assumptions about socket->sk

The verifier assumes that 'sk' field in 'struct socket' is valid and non-NULL when 'socket' pointer itself is trusted and non-NULL. That may not be the case when socket was just created and passed to LSM socket_accept hook. Fix this verifier assumption and adjust tests.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-38566"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-19T14:15:16Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix verifier assumptions about socket-\u003esk\n\nThe verifier assumes that \u0027sk\u0027 field in \u0027struct socket\u0027 is valid\nand non-NULL when \u0027socket\u0027 pointer itself is trusted and non-NULL.\nThat may not be the case when socket was just created and\npassed to LSM socket_accept hook.\nFix this verifier assumption and adjust tests.",
  "id": "GHSA-95cm-jx47-9cpv",
  "modified": "2025-09-17T21:30:39Z",
  "published": "2024-06-19T15:30:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38566"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0db63c0b86e981a1e97d2596d64ceceba1a5470e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39f8a29330f433000e716eefc4b9abda05b71a82"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f5ae91172a93abac9720ba94edf3ec8f4d7f24f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c58ccdd2483a1d990748cdaf94206b5d5986a001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}


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