CVE-2022-50156
HID: cp2112: prevent a buffer overflow in cp2112_xfer()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 18, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 3af7d60e9a6c17d6d41c4341f8020511887d372d 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 519ff31a6ddd87aa4905bd9bf3b92e8b88801614 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < ebda3d6b004bb6127a66a616524a2de152302ca7 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 8489a20ac481b08c0391608d81ed3796d373cfdf 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < e7028944e61014ae915e7fb74963d3835f2f761a 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 26e427ac85c2b8d0d108cc80b6de34d33e2780c4 542134c0375b5ca2b1d18490c02b8a20bfdd8d74 < 381583845d19cb4bd21c8193449385f3fefa9caf
Linux / Linux
4.15
References
git.kernel.org: https://git.kernel.org/stable/c/3af7d60e9a6c17d6d41c4341f8020511887d372d git.kernel.org: https://git.kernel.org/stable/c/519ff31a6ddd87aa4905bd9bf3b92e8b88801614 git.kernel.org: https://git.kernel.org/stable/c/ebda3d6b004bb6127a66a616524a2de152302ca7 git.kernel.org: https://git.kernel.org/stable/c/8489a20ac481b08c0391608d81ed3796d373cfdf git.kernel.org: https://git.kernel.org/stable/c/e7028944e61014ae915e7fb74963d3835f2f761a git.kernel.org: https://git.kernel.org/stable/c/26e427ac85c2b8d0d108cc80b6de34d33e2780c4 git.kernel.org: https://git.kernel.org/stable/c/381583845d19cb4bd21c8193449385f3fefa9caf