ghsa-p8q7-6g9r-q34g
Vulnerability from github
Published
2025-09-15 15:31
Modified
2025-09-15 15:31
Details

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

ocxl: fix pci device refcount leak when calling get_function_0()

get_function_0() calls pci_get_domain_bus_and_slot(), as comment says, it returns a pci device with refcount increment, so after using it, pci_dev_put() needs be called.

Get the device reference when get_function_0() is not called, so pci_dev_put() can be called in the error path and callers unconditionally. And add comment above get_dvsec_vendor0() to tell callers to call pci_dev_put().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50337"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T15:15:46Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nocxl: fix pci device refcount leak when calling get_function_0()\n\nget_function_0() calls pci_get_domain_bus_and_slot(), as comment\nsays, it returns a pci device with refcount increment, so after\nusing it, pci_dev_put() needs be called.\n\nGet the device reference when get_function_0() is not called, so\npci_dev_put() can be called in the error path and callers\nunconditionally. And add comment above get_dvsec_vendor0() to tell\ncallers to call pci_dev_put().",
  "id": "GHSA-p8q7-6g9r-q34g",
  "modified": "2025-09-15T15:31:28Z",
  "published": "2025-09-15T15:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50337"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/27158c72678b39ee01cc01de1aba6b51c71abe2f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37a13b274e4513c757e50c002ddcbf4bc89adbb2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/40ff4c2335a98f0ee96b099bfd70b8e6644f321f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a1b3148975b71fdc194e62612478346bbe618cd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a40e1b0a922a53fa925ea8b296e3de30a31ed028"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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