CVE-2026-72240 (GCVE-0-2026-72240)
Vulnerability from cvelistv5
Published
2026-08-15 05:54
Modified
2026-08-17 05:10
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: b6d6454fdb66f3829af8b92ab06825b6060fdf7e
Version: b6d6454fdb66f3829af8b92ab06825b6060fdf7e
Version: b6d6454fdb66f3829af8b92ab06825b6060fdf7e
Version: b6d6454fdb66f3829af8b92ab06825b6060fdf7e
Version: b6d6454fdb66f3829af8b92ab06825b6060fdf7e
Version: b6d6454fdb66f3829af8b92ab06825b6060fdf7e
Version: b6d6454fdb66f3829af8b92ab06825b6060fdf7e
Version: b6d6454fdb66f3829af8b92ab06825b6060fdf7e
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      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:10:58.219Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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          "url": "https://git.kernel.org/stable/c/bbb1ecaed4ed7680e63d3a0f143f03de32de5d6e"
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          "url": "https://git.kernel.org/stable/c/e2dac91380a10e9e8d5883fb73ce9d9b390a629c"
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          "url": "https://git.kernel.org/stable/c/760a1029692f1d788dc11aa636a3bf432e58b240"
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          "url": "https://git.kernel.org/stable/c/16a42c88c4667fa0bd944e438a667e059551f1f1"
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          "url": "https://git.kernel.org/stable/c/2ff8156fd500d54c61430b6834137fd0a07047ce"
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        {
          "url": "https://git.kernel.org/stable/c/8c2f0b42fc252e1bf1c7746447091a468e784ca1"
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      "title": "mfd: sm501: Fix reference leak on failed device registration",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-72240",
    "datePublished": "2026-08-15T05:54:28.905Z",
    "dateReserved": "2026-08-09T03:40:39.914Z",
    "dateUpdated": "2026-08-17T05:10:58.219Z",
    "state": "PUBLISHED"
  },
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}


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