GHSA-PH9X-GXV9-666V

Vulnerability from github – Published: 2025-12-09 03:31 – Updated: 2025-12-09 03:31
VLAI?
Details

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

mmc: atmel-mci: fix return value check of mmc_add_host()

mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del().

So fix this by checking the return value and calling mmc_free_host() in the error path.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50653"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-09T01:16:48Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: atmel-mci: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value,\nit will lead two issues:\n1. The memory that allocated in mmc_alloc_host() is leaked.\n2. In the remove() path, mmc_remove_host() will be called to\n   delete device, but it\u0027s not added yet, it will lead a kernel\n   crash because of null-ptr-deref in device_del().\n\nSo fix this by checking the return value and calling mmc_free_host()\nin the error path.",
  "id": "GHSA-ph9x-gxv9-666v",
  "modified": "2025-12-09T03:31:09Z",
  "published": "2025-12-09T03:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50653"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/00ac0f5f95920f003cd6ece53cdc759549b69118"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1925472dec31ec061d57412b3a65a056ea24f340"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6bb26abb92f25e582a0976091a10b539fe3796db"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/85946ceb0fac20ab39cdb85333086daf0291a553"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/99a6cdfa2cf05028b52f6d8ee85ccc5f8b71b4a2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e6e8c43726673ca2abcaac87640b9215fd72f4c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc8bb436f3c842a86b9082d97933582120d180e2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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