CVE-2022-50858 (GCVE-0-2022-50858)
Vulnerability from cvelistv5
Published
2025-12-30 12:15
Modified
2025-12-30 12:15
Severity ?
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: c5413ad815a675b5c98a002353d8e96b44b164e9
Version: c5413ad815a675b5c98a002353d8e96b44b164e9
Version: c5413ad815a675b5c98a002353d8e96b44b164e9
Version: c5413ad815a675b5c98a002353d8e96b44b164e9
Version: c5413ad815a675b5c98a002353d8e96b44b164e9
Version: c5413ad815a675b5c98a002353d8e96b44b164e9
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{
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          "value": "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."
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        "dateUpdated": "2025-12-30T12:15:32.534Z",
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      "title": "mmc: alcor: fix return value check of mmc_add_host()",
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    "dateReserved": "2025-12-30T12:06:07.135Z",
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    "state": "PUBLISHED"
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  }
}


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