ghsa-8q5q-7mvv-w97x
Vulnerability from github
Published
2025-05-29 15:31
Modified
2025-06-04 15:30
Details

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

module: ensure that kobject_put() is safe for module type kobjects

In 'lookup_or_create_module_kobject()', an internal kobject is created using 'module_ktype'. So call to 'kobject_put()' on error handling path causes an attempt to use an uninitialized completion pointer in 'module_kobject_release()'. In this scenario, we just want to release kobject without an extra synchronization required for a regular module unloading process, so adding an extra check whether 'complete()' is actually required makes 'kobject_put()' safe.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37995"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-29T14:15:36Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmodule: ensure that kobject_put() is safe for module type kobjects\n\nIn \u0027lookup_or_create_module_kobject()\u0027, an internal kobject is created\nusing \u0027module_ktype\u0027. So call to \u0027kobject_put()\u0027 on error handling\npath causes an attempt to use an uninitialized completion pointer in\n\u0027module_kobject_release()\u0027. In this scenario, we just want to release\nkobject without an extra synchronization required for a regular module\nunloading process, so adding an extra check whether \u0027complete()\u0027 is\nactually required makes \u0027kobject_put()\u0027 safe.",
  "id": "GHSA-8q5q-7mvv-w97x",
  "modified": "2025-06-04T15:30:29Z",
  "published": "2025-05-29T15:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37995"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/31d8df3f303c3ae9115230820977ef8c35c88808"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/93799fb988757cdacf19acba57807746c00378e6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e7b49ce4f9d0cb5b6e87db9e07a2fb9e754b0dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a63d99873547d8b39eb2f6db79dd235761e7098a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6aeb739974ec73e5217c75a7c008a688d3d5cf1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d63851049f412cdfadaeef7a7eaef5031d11c1e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1c71b4bd721a4ea21da408806964b10468623f2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/faa9059631d3491d699c69ecf512de9e1a3d6649"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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