CVE-2022-50131: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: prevent a buffer overflow in mcp_smbus_write() Smatch Warning: drivers/hid/hid-mcp2221.c:388 mcp_smbus_write() error: __memcpy() '&mcp->txbuf[5]' too small (59 vs 255) drivers/hid/hid-mcp2221.c:388 mcp_smbus_write() error: __memcpy() 'buf' too small (34 vs 255) The 'len' variable can take a value between 0-255 as it can come from data->block[0] and it is user data. So add an bound check to prevent a buffer overflow in memcpy().

Affected products

• Linux Linux Kernel: from 5.7, before 5.10.137 (fixed in 5.10.137); from 5.11, before 5.15.61 (fixed in 5.15.61); from 5.16, before 5.18.18 (fixed in 5.18.18); from 5.19, before 5.19.2 (fixed in 5.19.2)

Published 2025-06-18. Last modified 2026-08-04.