Unable to cast Python instance to C++ about atheris HOT 8 CLOSED

Can you confirm which version you have installed?

from atheris.

I have installed the version 2.1.1

from atheris.

Can you please provide the steps you took?

On a clean debian-like machine I did:

sudo apt install clang git
git clone https://github.com/google/atheris.git
cd atheris
pip3 install .
python3 example_fuzzers/custom_mutator_example.py

The example worked fine. I wonder if the issue could be related to macOS (which I think could be the differentiating factor between my test and yours, by looking at the path in your stacktrace).

from atheris.

Well, I was thinking the same, it could be related to macOS...

I followed the steps provided by macOS

# Building LLVM
git clone https://github.com/llvm/llvm-project.git
cd llvm-project
mkdir build
cd build
cmake -DLLVM_ENABLE_PROJECTS='clang;compiler-rt' -G "Unix Makefiles" ../llvm
make -j 10  # This step is very slow

# Installing Atheris
CLANG_BIN="$(pwd)/bin/clang" pip3 install atheris

from atheris.

I'm investigating mac.

from atheris.

Hmmm, I can't reproduce on Mac either. Ran with Python 3.10, clang 15.0.0, and the latest release of pybind11.

from atheris.

Back from vacation, I made prebuilt releases of the latest version for Mac.

from atheris.

Closing this issue as not reproducible. Please comment if you have more information that might help me reproduce it.

from atheris.