fkie_cve-2022-50347
Vulnerability from fkie_nvd
Published
2025-09-16 17:15
Modified
2025-09-17 14:18
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


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "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."
    }
  ],
  "id": "CVE-2022-50347",
  "lastModified": "2025-09-17T14:18:55.093",
  "metrics": {},
  "published": "2025-09-16T17:15:34.470",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1491667d5450778a265eddddd294219acfd648cb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7fa922c7a3dd623fd59f1af50e8896fd9ca7f654"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/89303ddbb502c3bc8edbf864f9f85500c8fe07e9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/937112e991ed25d1727d878734adcbef3b900274"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a522e26a20a43dcfbef9ee9f71ed803290e852b0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d7ad7278be401b09c9f9a9f522cf4c449c7fd489"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/df683201c7ffbd21a806a7cad657b661c5ebfb6f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e598c9683fe1cf97c2b11b800cc3cee072108220"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/fc38a5a10e9e5a75eb9189854abeb8405b214cc9"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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