CVE-2022-50347 (GCVE-0-2022-50347)
Vulnerability from cvelistv5
Published
2025-09-16 16:11
Modified
2025-09-16 16:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mmc: rtsx_usb_sdmmc: 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, besides, led_classdev_unregister() and pm_runtime_disable() also need be called.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1491667d5450778a265eddddd294219acfd648cb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7fa922c7a3dd623fd59f1af50e8896fd9ca7f654
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89303ddbb502c3bc8edbf864f9f85500c8fe07e9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/937112e991ed25d1727d878734adcbef3b900274
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a522e26a20a43dcfbef9ee9f71ed803290e852b0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d7ad7278be401b09c9f9a9f522cf4c449c7fd489
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/df683201c7ffbd21a806a7cad657b661c5ebfb6f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e598c9683fe1cf97c2b11b800cc3cee072108220
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fc38a5a10e9e5a75eb9189854abeb8405b214cc9
Impacted products
Vendor Product Version
Linux Linux Version: c7f6558d84afe60016b8103c0737df6e376a1c2d
Version: c7f6558d84afe60016b8103c0737df6e376a1c2d
Version: c7f6558d84afe60016b8103c0737df6e376a1c2d
Version: c7f6558d84afe60016b8103c0737df6e376a1c2d
Version: c7f6558d84afe60016b8103c0737df6e376a1c2d
Version: c7f6558d84afe60016b8103c0737df6e376a1c2d
Version: c7f6558d84afe60016b8103c0737df6e376a1c2d
Version: c7f6558d84afe60016b8103c0737df6e376a1c2d
Version: c7f6558d84afe60016b8103c0737df6e376a1c2d
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{
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          "programFiles": [
            "drivers/mmc/host/rtsx_usb_sdmmc.c"
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      "descriptions": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: rtsx_usb_sdmmc: 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, besides, led_classdev_unregister() and pm_runtime_disable() also\nneed be called."
        }
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      "providerMetadata": {
        "dateUpdated": "2025-09-16T16:11:39.891Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50347",
    "datePublished": "2025-09-16T16:11:39.891Z",
    "dateReserved": "2025-09-16T16:03:27.882Z",
    "dateUpdated": "2025-09-16T16:11:39.891Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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  }
}


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