ghsa-56x5-2pg4-9qq2
Vulnerability from github
Published
2025-12-24 12:30
Modified
2025-12-24 12:30
Details

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

md: fix rcu protection in md_wakeup_thread

We attempted to use RCU to protect the pointer 'thread', but directly passed the value when calling md_wakeup_thread(). This means that the RCU pointer has been acquired before rcu_read_lock(), which renders rcu_read_lock() ineffective and could lead to a use-after-free.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68374"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T11:16:00Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: fix rcu protection in md_wakeup_thread\n\nWe attempted to use RCU to protect the pointer \u0027thread\u0027, but directly\npassed the value when calling md_wakeup_thread(). This means that the\nRCU pointer has been acquired before rcu_read_lock(), which renders\nrcu_read_lock() ineffective and could lead to a use-after-free.",
  "id": "GHSA-56x5-2pg4-9qq2",
  "modified": "2025-12-24T12:30:30Z",
  "published": "2025-12-24T12:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68374"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0dc76205549b4c25705e54345f211b9f66e018a0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/21989cb5034c835b212385a2afadf279d8069da0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a4bd1caf591faeae44cb10b6517e7dacb5139bda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f98b191f78124405294481dea85f8a22a3eb0a59"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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