GHSA-Q98R-G989-36W3

Vulnerability from github – Published: 2025-12-09 18:30 – Updated: 2025-12-09 18:30
VLAI?
Details

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

hwrng: geode - Fix PCI device refcount leak

for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL.

If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. We add a new struct 'amd_geode_priv' to record pointer of the pci_dev and membase, and then add missing pci_dev_put() for the normal and error path.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50659"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-09T16:17:17Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwrng: geode - Fix PCI device refcount leak\n\nfor_each_pci_dev() is implemented by pci_get_device(). The comment of\npci_get_device() says that it will increase the reference count for the\nreturned pci_dev and also decrease the reference count for the input\npci_dev @from if it is not NULL.\n\nIf we break for_each_pci_dev() loop with pdev not NULL, we need to call\npci_dev_put() to decrease the reference count. We add a new struct\n\u0027amd_geode_priv\u0027 to record pointer of the pci_dev and membase, and then\nadd missing pci_dev_put() for the normal and error path.",
  "id": "GHSA-q98r-g989-36w3",
  "modified": "2025-12-09T18:30:31Z",
  "published": "2025-12-09T18:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50659"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19b7b85773b18457ff85a9ff4f5e2a2d4bf7ed0c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cc818ad53df650cac8fb41d9066665366af3f03"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6b9e43c4098f1310f5b4d52121d007a219fa5d43"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82bd423ed977847652b2048b0f8dcf049b1847a9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/874f798c2db5ad595e46982d7f727a679dacb048"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88f4ea623f59155280d99d1a59a968f838472c4a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f6ec8dc574efb7f4f3d7ee9cd59ae307e78f445"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa96aff394a511cc7bb7df08d1b8504d4d97671e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2f44baf62567c5cfbc274974c7d96dddad53ccc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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