Hi gang, Rob from The MagPi here. We have a new issue out on Thursday but before that, here comes a PSA.

You may have seen the news recently about a bug in the Linux kernel called Dirty COW – it’s a vulnerability that affects the ‘copy-on-write’ mechanism in Linux, which is also known as COW. This bug can be used to gain full control over a device running a version of Linux, including Android phones, web servers, and even the Raspberry Pi.

We’re not sure why a bug got a logo but we’re running with it

You don’t need to worry though, as a patch for Raspbian Jessie to fix Dirty COW has already been released, and you can get it right now. Open up a terminal window and type the following:

sudo apt-get update
sudo apt-get install raspberrypi-kernel

Once the install is done, make sure to reboot your Raspberry Pi and you’ll be Dirty COW free!

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Source: Raspberry Pi – Fix Dirty COW on the Raspberry Pi