ghsa-2hpp-r984-4f9g
Vulnerability from github
Published
2025-10-07 18:31
Modified
2025-10-07 18:31
Details

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

drm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios()

As comment of pci_get_class() says, it returns a pci_device with its refcount increased and decreased the refcount for the input parameter @from if it is not NULL.

If we break the loop in radeon_atrm_get_bios() with 'pdev' not NULL, we need to call pci_dev_put() to decrease the refcount. Add the missing pci_dev_put() to avoid refcount leak.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50520"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-07T16:15:35Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/radeon: Fix PCI device refcount leak in radeon_atrm_get_bios()\n\nAs comment of pci_get_class() says, it returns a pci_device with its\nrefcount increased and decreased the refcount for the input parameter\n@from if it is not NULL.\n\nIf we break the loop in radeon_atrm_get_bios() with \u0027pdev\u0027 not NULL, we\nneed to call pci_dev_put() to decrease the refcount. Add the missing\npci_dev_put() to avoid refcount leak.",
  "id": "GHSA-2hpp-r984-4f9g",
  "modified": "2025-10-07T18:31:08Z",
  "published": "2025-10-07T18:31:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50520"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1079df6acf56f99d86b0081a38c84701412cc90e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3991d98a8a07b71c02f3a39f77d6d9a7f575a5c4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/470a77989037c3ab2b08bf2d026d2c0ddc35ff5b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f28c7f67af4ef9bca580ab67ae2d4511797af56"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/725a521a18734f65de05b8d353b5bd0d3ca4c37a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88c6e0995c04b170563b5c894c50a3b2152e18c2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a6cffe54064a5f6c2162a85af3c16c6b453eac4e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9decada8749b606fd8b4f04a3d6c74f7983d7bc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e738f82e5b1311e8fb3d1409491a6fcce6418fbe"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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