README.md

Lesson 04 - persistent mode

Fuzzing harness:

#include <stdio.h>
#include <stdint.h>

#include <demo.h>


extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

    if (size >= 4) {

        demo_vuln_api((char*)data);

    }

    return 0;

}

Build fuzzing harness with libAFLDriver.a

afl-clang-lto -I. -L. harness.cc ../env/AFLplusplus/libAFLDriver.a -ldemo -o harness

Fuzzing with persistent mode

export LD_LIBRARY_PATH=.:$LD_LIBRARY_PATH
afl-fuzz -i input -o output -- ./harness

Reference

• https://github.com/AFLplusplus/AFLplusplus/tree/stable/utils/aflpp_driver