How Linux Kernel Development Impacts Security
Found on eWEEK on Wednesday, 11 May 2016

At CoreOS Fest, Greg Kroah-Hartman, maintainer of the Linux kernel, declares that almost all bugs can be security issues.
From a security perspective, the rate of change and bug fixes are also noteworthy, as Kroah-Hartman emphatically said almost all bugs can be a security issue. Because he doesn't always know which bug could be a security vulnerability, he said all patches are important.
Otherwise bugs would probably be called features by marketing people.