ghsa-p932-8wx4-gvmj
Vulnerability from github
Published
2025-12-08 03:31
Modified
2025-12-08 03:31
Details

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

mmc: meson-gx: 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().

Fix this by checking the return value and goto error path which will call mmc_free_host().

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50618"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-08T02:15:47Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: meson-gx: 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\nFix this by checking the return value and goto error path which\nwill call mmc_free_host().",
  "id": "GHSA-p932-8wx4-gvmj",
  "modified": "2025-12-08T03:31:02Z",
  "published": "2025-12-08T03:31:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50618"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/42343e3c6195e934b9cb4c08b7ff84a3778d77f9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/64b2c441171febf075bd9632aca579afda8ab9fb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9e11c6bb745be4e9b325cf96031b4ea34801342d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e0cfe7aa41f3965f5224affd88afd48c60f6ad1f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5506e0bbb25102bd8ef2e1a3b483a0b934e454e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5ce76aeddf01ca8f2a80fc37119388d59db7c10"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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