CloudLinux announced that its KernelCare service now supports the Raspberry Pi platform providing live patching for the running kernel with zero downtime. This provides IoT projects with improved protection against newly discovered vulnerabilities as they are fixed, rather than being easy targets for hackers. The currently supported chips are the BCM2711 (Pi 4) and BCM2837 (Pi 3 and later models of the Pi 2) The current supported chips include the BCm2711 and BCm2837 versions of Pi 2.
Source: https://www.helpnetsecurity.com/2021/02/11/cloudlinux-raspberry-pi/