ghsa-m3wv-5mmv-w433
Vulnerability from github
Published
2025-12-30 15:30
Modified
2025-12-30 15:30
Details

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

mmc: alcor: 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.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50858"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-30T13:16:00Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: alcor: 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.",
  "id": "GHSA-m3wv-5mmv-w433",
  "modified": "2025-12-30T15:30:28Z",
  "published": "2025-12-30T15:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50858"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/289c964fe182ce755044a6cd57698072e12ffa6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29c5b4da41f35108136d843c7432885c78cf8272"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48dc06333d75f41c2ce9ba954bc3231324b45914"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4a6e5d0222804a3eaf2ea4cf893f412e7cf98cb2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60fafcf2fb7ee9a4125dc9a86eeb9d490acf23e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e93d1468f429475a753d6baa79b853b7ee5ef8c0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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