Comment 69 for bug 1752437

I'm not too familiar with Ubuntu but https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel would be a good place to start.
In a more general sense you need to get the kernel source, build it while applying the patch, install it in your boot directory, and update your boot loader to point at the new image.

https://askubuntu.com/questions/724900/how-to-apply-kernel-patches/724909#724909 Here is an example of how to patch the kernel in more detail on Ubuntu.