The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
The Linux kernel features some additional security mechanisms that you can use to enhance the security of a system. These mechanisms randomize the layout of a process's address space or prevent code from being executed in non-executable memory.