You can use a built-in tool to get update the kernel on RHEL systems with no downtime. That tool is live kernel patching (kpatch). Kpatch has been a part of our operating system for some time now (since RHEL 8.1, 7.7). However, with RHEL 8.5 (and the 9.0 Beta), there are some significant enhancements.
Quelle: CloudForms