The AMD kernel driver (pdfwkrnl.sys), which is part of the IO device controller (USB-C device) firmware update utility, is intended to be executed only by a privileged user (i.e., an administrator) on the target system when updating the AMD RadeonTM Software (Adrenalin Edition and PRO Edition). However, the improper privilege management vulnerability may allow a low-privileged user to launch an attack while a privileged user is running the firmware update utility tool because the firmware update utility requires exposing the IOCTL interface to perform the firmware update process. During this IOCTL exposure, the low privileged user could potentially gain I/O control of the USB ports or physical addresses, exploiting the improper privilege management vulnerability Refer: https://www.amd.com/en/resources/product-security/bulletin/amd-sb-6009.html