CVE-2022-50618 (GCVE-0-2022-50618)
Vulnerability from cvelistv5
Published
2025-12-08 01:16
Modified
2025-12-08 01:16
Severity ?
Summary
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().
References
Impacted products
Vendor Product Version
Linux Linux Version: 51c5d8447bd71b7e539c19c46a03b73c0e91fa66
Version: 51c5d8447bd71b7e539c19c46a03b73c0e91fa66
Version: 51c5d8447bd71b7e539c19c46a03b73c0e91fa66
Version: 51c5d8447bd71b7e539c19c46a03b73c0e91fa66
Version: 51c5d8447bd71b7e539c19c46a03b73c0e91fa66
Version: 51c5d8447bd71b7e539c19c46a03b73c0e91fa66
Version: 51c5d8447bd71b7e539c19c46a03b73c0e91fa66
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{
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          "product": "Linux",
          "programFiles": [
            "drivers/mmc/host/meson-gx-mmc.c"
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      "descriptions": [
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          "lang": "en",
          "value": "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()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-08T01:16:31.649Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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        {
          "url": "https://git.kernel.org/stable/c/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50618",
    "datePublished": "2025-12-08T01:16:31.649Z",
    "dateReserved": "2025-12-08T01:14:55.189Z",
    "dateUpdated": "2025-12-08T01:16:31.649Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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  }
}


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