A guide to kernel live patching on Red Hat Enterprise Linux 7, 8, and 9

Kernel live patching is a solution that allows you to patch a running kernel with selected critical and important CVEs without rebooting your system.

For more information about the kernel live patching solution and how it works in Red Hat Enterprise Linux 7 see Applying patches with kernel live patching in the Kernel administration guide or refer to the release note notation. In RHEL 7 the live patching solution is supported from version 7.7.

In RHEL 8, the kernel live patching solution is supported from version 8.1 and the usage is nearly identical as in RHEL 7. For further details see Applying patches with kernel live patching in Managing, monitoring and updating the kernel or refer to the release note notation.

In RHEL 9, the kernel live patching solution is supported from version 9.0 and the usage is identical as in RHEL 8. For further details see Applying patches with kernel live patching in Managing, monitoring, and updating the kernel.