When I quickchecked maps, my approach was to use the distribution feature to run the maps code itself on another VM and trying for force it into a crashing state. This avoids having to restart the VM all the time.

AFL fuzz is severely limited if you need to boot up the VM, then run a program, then stop the VM again. It is rarely that part you want to test.

Perhaps we can strike middle-ground. Rip out the ETERM encoder/decoder to binary data and fuzz that. It should be a far simpler target.