CVE-2022-50251 (GCVE-0-2022-50251)
Vulnerability from cvelistv5
Published
2025-09-15 14:02
Modified
2025-09-15 14:02
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
Linux Linux Version: 88095e7b473a3d9ec3b9c60429576e9cbd327c89
Version: 88095e7b473a3d9ec3b9c60429576e9cbd327c89
Version: 88095e7b473a3d9ec3b9c60429576e9cbd327c89
Version: 88095e7b473a3d9ec3b9c60429576e9cbd327c89
Version: 88095e7b473a3d9ec3b9c60429576e9cbd327c89
Version: 88095e7b473a3d9ec3b9c60429576e9cbd327c89
Version: 88095e7b473a3d9ec3b9c60429576e9cbd327c89
Version: 88095e7b473a3d9ec3b9c60429576e9cbd327c89
Version: 88095e7b473a3d9ec3b9c60429576e9cbd327c89
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{
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          "programFiles": [
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          "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."
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8"
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        },
        {
          "url": "https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676"
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      "title": "mmc: vub300: fix return value check of mmc_add_host()",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50251",
    "datePublished": "2025-09-15T14:02:12.331Z",
    "dateReserved": "2025-09-15T13:58:00.973Z",
    "dateUpdated": "2025-09-15T14:02:12.331Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
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  }
}


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