Tracker / CVE-2022-50131
CVE-2022-50131
High 7.8
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 and versions
| linux | linux_kernel · 5.11 → 5.15.61 |
|---|---|
| linux | linux_kernel · 5.16 → 5.18.18 |
| linux | linux_kernel · 5.19 → 5.19.2 |
| linux | linux_kernel · 5.7 → 5.10.137 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.