CVE-2022-50251 (GCVE-0-2022-50251)

Vulnerability from cvelistv5 – Published: 2025-09-15 14:02 – Updated: 2025-09-15 14:02
VLAI?
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 88095e7b473a3d9ec3b9c60429576e9cbd327c89 , < 41ed46bdbd2878cd6567abe0974a445f8b1b8ec8 (git)
Affected: 88095e7b473a3d9ec3b9c60429576e9cbd327c89 , < 25f05d762ca5e1c685002a53dd44f68e78ca3feb (git)
Affected: 88095e7b473a3d9ec3b9c60429576e9cbd327c89 , < a46e681151bbdacdf6b89ee8c4e5bad0555142bb (git)
Affected: 88095e7b473a3d9ec3b9c60429576e9cbd327c89 , < 3b29f8769d32016b2d89183db4d80c7a71b7e35e (git)
Affected: 88095e7b473a3d9ec3b9c60429576e9cbd327c89 , < 3049a3b927a40d89d4582ff1033cd7953be773c7 (git)
Affected: 88095e7b473a3d9ec3b9c60429576e9cbd327c89 , < afc898019e7bf18c5eb7a0ac19852fcb1b341b3c (git)
Affected: 88095e7b473a3d9ec3b9c60429576e9cbd327c89 , < c9e85979b59cb86f0a15defa8199d740e2b36b90 (git)
Affected: 88095e7b473a3d9ec3b9c60429576e9cbd327c89 , < 2044b2ea77945f372ef161d1bbf814e471767ff2 (git)
Affected: 88095e7b473a3d9ec3b9c60429576e9cbd327c89 , < 0613ad2401f88bdeae5594c30afe318e93b14676 (git)
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    Linux Linux Affected: 3.0
Unaffected: 0 , < 3.0 (semver)
Unaffected: 4.9.337 , ≤ 4.9.* (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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          "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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        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676"
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    "dateReserved": "2025-09-15T13:58:00.973Z",
    "dateUpdated": "2025-09-15T14:02:12.331Z",
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  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.