I want to fuzz the map loading feature in counter strike. The source code for csgo got leaked a while back and here is a build which you can compile https://github.com/SwagSoftware/Kisak-Strike . However, when I try to compile it using this command:
AFL_USE_ASAN=1 PERSIST=1 cmake -DCMAKE_BUILD_TYPE=Debug -DUSE_ROCKETUI=ON -DFREETYPE_LIBRARY=/usr/lib/x86_64-linux-gnu/libfreetype.so -DFREETYPE_INCLUDE_DIRS=/usr/include/freetype2/freetype/ -DUSE_KISAK_PHYSICS=ON -DCMAKE_C_COMPILER=/home/cyberhacker/Asioita/Hakkerointi/Counterstrikestuff/aflpp/afl-gcc-fastthing/AFLplusplus/afl-gcc-fast -DCMAKE_CXX_COMPILER=/home/cyberhacker/Asioita/Hakkerointi/Counterstrikestuff/aflpp/afl-gcc-fastthing/AFLplusplus/afl-g++-fast ..
and then when i try to run ./csgo_linux64 , it throws this error:
Failed to load the launcher(bin/linux64/launcher_client.so) (/home/cyberhacker/Asioita/Csgocompile/withjump/game/bin/linux64/libtier0_client.so: undefined symbol: __afl_area_ptr)
I am expecting it to just work as usual (same as with the regular build). It works completely fine when I try to compile it normally with this command:
cmake -DCMAKE_BUILD_TYPE=Debug -DUSE_ROCKETUI=ON -DFREETYPE_LIBRARY=/usr/lib/x86_64-linux-gnu/libfreetype.so -DFREETYPE_INCLUDE_DIRS=/usr/include/freetype2/freetype/ -DUSE_KISAK_PHYSICS=ON -DCMAKE_C_COMPILER=/usr/bin/cc -DCMAKE_CXX_COMPILER=/usr/bin/c++ ..
and then make -j8
I searched a bit and found this: this . In that conversation they say that this error can be cause by compiling with afl-gcc but then linking with normal gcc or ld. However this is not the cause of my problem since I have looked through the cmake log files and the binaries are being linked with afl-g++-fast so this shouldn't be a problem in my case. I read somewhere that the libraries should be statically included, not dynamic but I do not think that it is a necessity. Feel free to look at the Kisak strike source code if you want to (obviously).
