CVE-2022-50156 (GCVE-0-2022-50156)

Vulnerability from cvelistv5 – Published: 2025-06-18 11:03 – Updated: 2026-05-11 19:13
VLAI
Title
HID: cp2112: prevent a buffer overflow in cp2112_xfer()
Summary
In the Linux kernel, the following vulnerability has been resolved: HID: cp2112: prevent a buffer overflow in cp2112_xfer() Smatch warnings: drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy() 'data->block[1]' too small (33 vs 255) drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy() 'buf' too small (64 vs 255) The 'read_length' variable is provided by 'data->block[0]' which comes from user and it(read_length) can take a value between 0-255. Add an upper bound to 'read_length' variable to prevent a buffer overflow in memcpy().
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 , < 3af7d60e9a6c17d6d41c4341f8020511887d372d (git)
Affected: 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 , < 519ff31a6ddd87aa4905bd9bf3b92e8b88801614 (git)
Affected: 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 , < ebda3d6b004bb6127a66a616524a2de152302ca7 (git)
Affected: 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 , < 8489a20ac481b08c0391608d81ed3796d373cfdf (git)
Affected: 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 , < e7028944e61014ae915e7fb74963d3835f2f761a (git)
Affected: 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 , < 26e427ac85c2b8d0d108cc80b6de34d33e2780c4 (git)
Affected: 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 , < 381583845d19cb4bd21c8193449385f3fefa9caf (git)
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Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 4.19.256 , ≤ 4.19.* (semver)
Unaffected: 5.4.211 , ≤ 5.4.* (semver)
Unaffected: 5.10.137 , ≤ 5.10.* (semver)
Unaffected: 5.15.61 , ≤ 5.15.* (semver)
Unaffected: 5.18.18 , ≤ 5.18.* (semver)
Unaffected: 5.19.2 , ≤ 5.19.* (semver)
Unaffected: 6.0 , ≤ * (original_commit_for_fix)
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.