The profile that probably triggers this is /etc/apparmor.d/usr.sbin.mysqld
My guess is that this file is empty or contains only comments - at least I can reproduce the problem when using such a file. Can you please confirm that your /etc/apparmor.d/usr.sbin.mysqld indeed only contains comments? (Or simply attach it ;-)
Thanks for the bugreport!
The profile that probably triggers this is /etc/apparmor. d/usr.sbin. mysqld
My guess is that this file is empty or contains only comments - at least I can reproduce the problem when using such a file. Can you please confirm that your /etc/apparmor. d/usr.sbin. mysqld indeed only contains comments? (Or simply attach it ;-)