CVE-2022-50156

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Source
https://cve.org/CVERecord?id=CVE-2022-50156
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50156.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-50156
Downstream
Related
Published
2025-06-18T11:03:13.913Z
Modified
2026-03-20T12:22:32.683587Z
Summary
HID: cp2112: prevent a buffer overflow in cp2112_xfer()
Details

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 'readlength' variable is provided by 'data->block[0]' which comes from user and it(readlength) can take a value between 0-255. Add an upper bound to 'read_length' variable to prevent a buffer overflow in memcpy().

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50156.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
542134c0375b5ca2b1d18490c02b8a20bfdd8d74
Fixed
3af7d60e9a6c17d6d41c4341f8020511887d372d
Fixed
519ff31a6ddd87aa4905bd9bf3b92e8b88801614
Fixed
ebda3d6b004bb6127a66a616524a2de152302ca7
Fixed
8489a20ac481b08c0391608d81ed3796d373cfdf
Fixed
e7028944e61014ae915e7fb74963d3835f2f761a
Fixed
26e427ac85c2b8d0d108cc80b6de34d33e2780c4
Fixed
381583845d19cb4bd21c8193449385f3fefa9caf

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50156.json"