kpatch
patch a Linux kernel without rebooting or restarting any processes
* kpatch is currently in active development. For now, it should not be used in production environments.
Linux 3.14
Ubuntu 14.04
apt-get install build-essentials libelf-dev
# Packages required to compile Linux Kernel
apt-get build-dep linux
# Compiler cache
apt-get install ccache
# Optional: kernel source code
apt-get install linux-source
CentOS 7