kpatch
kpatch is a feature of the Linux kernel that implements live patching of a running kernel, which allows kernel patches to be applied while the kernel is still running.
Cost / License
- Free
- Open Source
Platforms
- Linux
Features
Tags
- linux-kernel
- livepatch
kpatch News & Activities
Recent activities
kpatch information
Developed by
RedHat Inc. Licensing
Open Source (GPL-2.0) and Free product.Written in
Alternatives
4 alternatives listedSupported Languages
- English
What is kpatch?
By avoiding the need for rebooting the system with a new kernel that contains the desired patches, kpatch aims to maximize the system uptime and availability. At the same time, kpatch allows kernel-related security updates to be applied without deferring them to scheduled downtimes. Internally, kpatch allows entire functions in a running kernel to be replaced with their patched versions, doing that safely by stopping all running processes while the live patching is performed.
kpatch is developed by Red Hat, with its source code licensed under the terms of the GNU General Public License version 2 (GPLv2). In May 2014, kpatch was submitted for inclusion into the Linux kernel mainline, and the minimalistic foundations for live patching were merged into the Linux kernel mainline in kernel version 4.0, which was released on April 12, 2015.