fuzzing cisco rv130 cannot trigger crash

[manba-bryant]

When I test the squashfs-root/usr/sbin/jsonparse program from RV130X_FW_1.0.3.55.bin, I cannot trigger a crash (or even find any vulnerabilities) in a very short time using AFL++ in QEMU mode, unlike with other targets.

I have tried both with and without using snapshots, but neither approach produced any crashes. I'm not sure if the problem lies in my Python script.

Could you please help me? Thank you very much, and best regards! I’m looking forward to your reply.

RV130X_FW_1.0.3.55.bin.zip
Herea are python scripts and testcase

save_snapshot.py
test.json
fuzz.py

[wtdcode]

What's the unicornafl version used?

Could you try AFL++ stable branch? We are in the process of releasing new unicornafl version.