1. The latest stable kernel is 4.11.

2. Rewards for remote kernel exploits have been bumped up from $30,000 to $150,000.

3. In 2014, Facebook engineers contributed 214 changes to the Linux kernel, up from 6 in 2013.

4. With each kernel release there is an increasing volume of code changes are submitted.

5. You do this by manually preventing the kernel from being loaded.

6. Half of the kernel developers were contributing for the first time.

7. Once Shellshock gets into a system kernel, that OS image is as good as hacked.

8. File system access performs less well than with native kernel support, for example.