The kernel parameters can be edited in the GRUB startup file. I think elsewhere too, but don’t know how/where.
To add the parameters, open /etc/default/grub with sudo:
sudo nano /etc/default/grub
Edit the line starting with GRUB_CMDLINE_LINUX_DEFAULT=. Add the following between the quotes:
init_on_alloc=0
Do not remove anything, just ad that to the end of the line, with a space before it. For example:
GRUB_CMDLINE_LINUX_DEFAULT="quiet udev.log_priority=3 init_on_alloc=0"
Save, Ctrl+O, and exit the editor, Ctrl+X → Y.
Then you need to update grub:
sudo update-grub
In theory, AFAIK, you should be able to safely reboot.
If it worked, feel free to heap on the praise. If, however, it didn’t, well then, I’m innocent and luckily halfway around the world. At least for most people.