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high7.8

CVE-2022-50156

In the Linux kernel, the following vulnerability has been resolved: HID: cp2112: prevent a buffer overflow in cp2112_xfer() Smatch warnings: drivers/hid/hid-cp…

Impact

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().

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 4.15.1 before 4.19.256
from 4.20 before 5.4.211
from 5.5 before 5.10.137
from 5.11 before 5.15.61
from 5.16 before 5.18.18
from 5.19 before 5.19.2

Weakness classification

CWE-787

References