Kpatch
Livepatch: Linux kernel updates without rebooting
Livepatch is a feature to do live kernel patching for Linux systems. It allows applying security updates without rebooting the system. Learn how it works!
Summary
If you run a Linux server, software patching is a task that will have to be performed on a regular basis. Although most programs can be auto-restarted with a tool like needrestart, there is one exception: the kernel. Wouldn’t it be a nice if we could update the kernel without the mandatory reboot? Here is livepatch, the feature of the Linux kernel that makes it possible. Let’s discover how it works and if you can use it on your system.