AMD has released a new chipset driver update, version 7.06.02.123, for all supported Ryzen CPUs and platforms. This update introduces Control-flow Enforcement Technology (CET) compatibility, enhancing system security by mitigating common malware techniques such as memory hijacking and code redirection.
CET, initially developed by Intel and supported by Microsoft in Windows 10 versions 20H1 and 20H2, is designed to protect against control-flow hijacking attacks. It introduces features like Shadow Stack and Indirect Branch Targeting (IBT). Shadow Stack defends against Return Oriented Programming (ROP) attacks by maintaining a secondary stack that securely stores return addresses, while IBT protects against Call or Jump Oriented Programming (COP/JOP) attacks. These mechanisms work together to ensure the integrity of return addresses, effectively preventing unauthorized control transfers.
AMD began incorporating CET support into its driver suite in late 2024. The latest update extends this support to the AMD PPM Provisioning File driver, a critical component responsible for power management and core parking. By adding CET compatibility to this driver, AMD enhances the security posture of systems utilizing Ryzen processors.
The update also includes several bug fixes and introduces new device IDs to improve driver functionality across various hardware configurations. However, some known issues remain unresolved, such as the uninstall summary incorrectly displaying the uninstall status as "Failed" and occasional installation or upgrade issues with the Ryzen PPKG.
AMD Ryzen processors from the Zen 3 architecture onward, including the Ryzen 5000, 6000, 7000, and 9000 series, are compatible with this new security feature. Users are encouraged to download and install the latest chipset driver to benefit from these security enhancements and bug fixes.
To download the driver update, visit AMD's official website. The installer will guide you through selecting the components you wish to update. For most users, choosing the default recommended options should suffice.
In summary, while this update may not introduce flashy new features, the addition of CET compatibility to the AMD PPM Provisioning File driver represents a significant step forward in system security for Ryzen users. By proactively addressing potential vulnerabilities, AMD continues to demonstrate its commitment to providing secure and reliable computing experiences.
Source: Windows Report AMD Ryzen Chipset Driver Update 7.06.02.123 Adds CETCOMPAT Support