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GHSA-86JQ-C78H-58W8

Vulnerability from github – Published: 2026-08-15 06:32 – Updated: 2026-08-15 06:32
VLAI
Details

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

mfd: sm501: Fix reference leak on failed device registration

When platform_device_register() fails in sm501_register_device(), the embedded struct device in pdev has already been initialized by device_initialize(), but the failure path only reports the error and returns without dropping the device reference for the current platform device:

sm501_register_device() -> platform_device_register(pdev) -> device_initialize(&pdev->dev) -> setup_pdev_dma_masks(pdev) -> platform_device_add(pdev)

This leads to a reference leak when platform_device_register() fails. Fix this by calling platform_device_put() before returning the error.

The issue was identified by a static analysis tool I developed and confirmed by manual review.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-72240"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-15T06:21:51Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmfd: sm501: Fix reference leak on failed device registration\n\nWhen platform_device_register() fails in sm501_register_device(), the\nembedded struct device in pdev has already been initialized by\ndevice_initialize(), but the failure path only reports the error and\nreturns without dropping the device reference for the current platform\ndevice:\n\n  sm501_register_device()\n    -\u003e platform_device_register(pdev)\n       -\u003e device_initialize(\u0026pdev-\u003edev)\n       -\u003e setup_pdev_dma_masks(pdev)\n       -\u003e platform_device_add(pdev)\n\nThis leads to a reference leak when platform_device_register() fails.\nFix this by calling platform_device_put() before returning the error.\n\nThe issue was identified by a static analysis tool I developed and\nconfirmed by manual review.",
  "id": "GHSA-86jq-c78h-58w8",
  "modified": "2026-08-15T06:32:17Z",
  "published": "2026-08-15T06:32:17Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72240"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0baf9d43a7b7b43df2900bd8656e75b725028b6e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/16a42c88c4667fa0bd944e438a667e059551f1f1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2ff8156fd500d54c61430b6834137fd0a07047ce"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/760a1029692f1d788dc11aa636a3bf432e58b240"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c2f0b42fc252e1bf1c7746447091a468e784ca1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3e340d506c1036a747fb0972aebf1063f7ef30e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bbb1ecaed4ed7680e63d3a0f143f03de32de5d6e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e2dac91380a10e9e8d5883fb73ce9d9b390a629c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



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