FKIE_CVE-2022-50886

Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2025-12-30 13:16
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mmc: toshsd: 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 goto error path which will call mmc_free_host(), besides, free_irq() also needs be called.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3329e7b7132ca727263fb0ee214cf52cc6dcaaad
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34ae492f8d172f0bd193c24cad588b35419ea47a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3dbb69a0242c31ea4c9eee22b1c41b515fe509a0
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6444079767b68b1fbed0e7668081146e80dcb719
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/647e370dd0ef7e212d8d014bda748e461eab2e8c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/aabbedcb6c9a72d12d35dc672e83f0c8064d8a61
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bfd77b194c94aefbde4efc30ddf8607dd9244672
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f670744a316ea983113a65313dcd387b5a992444
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: toshsd: 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 goto error path which will call\nmmc_free_host(), besides, free_irq() also needs be called."
    }
  ],
  "id": "CVE-2022-50886",
  "lastModified": "2025-12-30T13:16:03.720",
  "metrics": {},
  "published": "2025-12-30T13:16:03.720",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3329e7b7132ca727263fb0ee214cf52cc6dcaaad"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/34ae492f8d172f0bd193c24cad588b35419ea47a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3dbb69a0242c31ea4c9eee22b1c41b515fe509a0"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6444079767b68b1fbed0e7668081146e80dcb719"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/647e370dd0ef7e212d8d014bda748e461eab2e8c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/aabbedcb6c9a72d12d35dc672e83f0c8064d8a61"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bfd77b194c94aefbde4efc30ddf8607dd9244672"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f670744a316ea983113a65313dcd387b5a992444"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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