does it support multi-threaded programs
X1aoR0 opened this issue · comments
I saw that AFL's frida-mode does not support multi-threading now, so I would like to ask if afl-dyninst also does not support multi-threading
Technically it would work, but would definitely suffer from stability issues and nondeterminism. That's mostly true for any AFL-like fuzzer , multiple threads introduce non-determinism which messes up the fitness function.
I'd suggest you take a look at a more up-to-date version of AFL , AFL++ which has support for a few different options for binary only fuzzing (such as Qemu mode) https://github.com/AFLplusplus/AFLplusplus/blob/869138aa41db5411535003fa575a35b75b857389/docs/fuzzing_binary-only_targets.md
Additionally, that group has an improved version of afl-dyninst (https://github.com/vanhauser-thc/afl-dyninst) which has seen more maintenance than this one.
Cheers
the question is what you mean with "support threads". some loose coverage with threads because of race conditions to the coverage map, do you mean that? I recommend nyx_mode or qemu_mode, they are the most stable ones.