ghsa-542m-h257-c5wg
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:

mmc: rtsx_pci: fix return value check of mmc_add_host()

mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path.

So fix this by checking the return value and calling mmc_free_host() in the error path, beside, runtime PM also needs be disabled.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50267"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T15:15:37Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: rtsx_pci: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value, the memory\nthat allocated in mmc_alloc_host() will be leaked and it will lead a kernel\ncrash because of deleting not added device in the remove path.\n\nSo fix this by checking the return value and calling mmc_free_host() in the\nerror path, beside, runtime PM also needs be disabled.",
  "id": "GHSA-542m-h257-c5wg",
  "modified": "2025-09-15T15:31:25Z",
  "published": "2025-09-15T15:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50267"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0c87db77423a282b3b38b8a6daf057b822680516"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30dc645461dfc63e52b3af8ee4a98e17bf14bacf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5cd4e04eccaec140da6fa04db056a76282ee6852"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ffa9b2a79e3e959683efbad3f6db937eca9d38f5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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