ghsa-c8hr-j464-wc7x
Vulnerability from github
Published
2025-12-24 15:30
Modified
2025-12-24 15:30
Details

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

mmc: mxcmmc: 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 goto error path which will call mmc_free_host().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50769"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T13:16:03Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: mxcmmc: 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 goto error path which will call\nmmc_free_host().",
  "id": "GHSA-c8hr-j464-wc7x",
  "modified": "2025-12-24T15:30:34Z",
  "published": "2025-12-24T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50769"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1cf0c1e58738b97e2de207846105b6a5d46622ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d496050ded83b13b16f05e1fc0329b0210d2493"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/32eb502c972dfc34413c9147418b3d94d870c2b8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3904eb97bb78fdca3e16d30a38ce5697b9686110"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f35c038c9f4d258b3cf77885a2730f1417d63e7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b8bdb3fd13d5cd1e86d22fd3f803a742fd88af89"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cde600af7b413c9fe03e85c58c4279df90e91d13"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2ead18bc7cc166220cab5a744a05c5b69431a12"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d37474ab9a79149075f0823315c6d45dd983a78c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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