Please patch for Stack Clash

[akjsefjwe]

@sam_nazarko

The following are for ubuntu as I have not seen it for debian yet.

• security - What is Stack Clash and what can I do about it? - Ask Ubuntu
• http://launchpadlibrarian.net/323959989/linux-raspi2_4.8.0-1040.43_4.8.0-1040.44.diff.gz

[sam_nazarko]

Will investigate

Cheers

Sam