fkie_cve-2022-50251
Vulnerability from fkie_nvd
Published
2025-09-15 14:15
Modified
2025-09-15 15:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mmc: vub300: 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, the timer added before mmc_add_host() needs be del. And this patch fixes another missing call mmc_free_host() if usb_control_msg() fails.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2044b2ea77945f372ef161d1bbf814e471767ff2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/25f05d762ca5e1c685002a53dd44f68e78ca3feb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3049a3b927a40d89d4582ff1033cd7953be773c7
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3b29f8769d32016b2d89183db4d80c7a71b7e35e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a46e681151bbdacdf6b89ee8c4e5bad0555142bb
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/afc898019e7bf18c5eb7a0ac19852fcb1b341b3c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c9e85979b59cb86f0a15defa8199d740e2b36b90
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: vub300: 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, the timer added before mmc_add_host() needs be del.\n\nAnd this patch fixes another missing call mmc_free_host() if usb_control_msg()\nfails."
    }
  ],
  "id": "CVE-2022-50251",
  "lastModified": "2025-09-15T15:21:42.937",
  "metrics": {},
  "published": "2025-09-15T14:15:35.750",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2044b2ea77945f372ef161d1bbf814e471767ff2"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/25f05d762ca5e1c685002a53dd44f68e78ca3feb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3049a3b927a40d89d4582ff1033cd7953be773c7"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/3b29f8769d32016b2d89183db4d80c7a71b7e35e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a46e681151bbdacdf6b89ee8c4e5bad0555142bb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/afc898019e7bf18c5eb7a0ac19852fcb1b341b3c"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c9e85979b59cb86f0a15defa8199d740e2b36b90"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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