Error while running 32 bit binary in 64 bit machine

[lzina]

Hi,
I experience something very wired when running my 32 binary on 64 bit machine with shellphish/fuzzer.

If I execute the command below:

/~/PycharmProjects/driller-afl/venv/bin/python /~/PycharmProjects/driller-afl/venv/bin/shellphuzz --memory none -c 1 -d 1 --length-extension 20 --driller-timeout 80 /~/PycharmProjects/driller-afl/venv/test_cases/test_new_null_pointer_32

I get the error:

�[0;36mafl-fuzz �[1;37m1.85b�[0m by <lcamtuf@google.com>
�[1;32m[+] �[0mLooks like we're not running on a tty, so I'll be a bit less verbose.�[0m
�[1;32m[+] �[0mYou have 3 CPU cores and 2 runnable tasks (utilization: 67%).�[0m
�[1;32m[+] �[0mTry parallel jobs - see /usr/local/share/doc/afl/parallel_fuzzing.txt.�[0m
�[1;34m[*] �[0mChecking core_pattern...�[0m
�[1;34m[*] �[0mSetting up output directories...�[0m
�[1;34m[*] �[0mScanning '/dev/shm/work/test_new_null_pointer_32/input'...�[0m
�[1;32m[+] �[0mNo auto-generated dictionary tokens to reuse.�[0m
�[1;34m[*] �[0mCreating hard links for all input files...�[0m
�[1;34m[*] �[0mLoading extra dictionary from '/dev/shm/work/test_new_null_pointer_32/test_new_null_pointer_32.dict' (level 0)...�[0m
�[1;32m[+] �[0mLoaded 1 extra tokens, size range 19 B to 19 B.�[0m
�[1;34m[*] �[0mValidating target binary...�[0m
�[1;34m[*] �[0mAttempting dry run with 'id:000000,orig:seed-0'...�[0m
�[1;34m[*] �[0mSpinning up the fork server...�[0m

�[1;31m[-] �[0mHmm, looks like the target binary terminated before we could complete a
    handshake with the injected code. Perhaps there is a horrible bug in the
    fuzzer. Poke <lcamtuf@coredump.cx> for troubleshooting tips.
��)B�[?25h�[1;31m
[-] PROGRAM ABORT : �[1;37mFork server handshake failed�[1;31m
         Location : �[0minit_forkserver(), afl-fuzz.c:2082

However, if I run AFL through cmd with the same afl-fuzz and afl-qemu-tracer files like below:

guest@vm:~/Documents/Fuzzing$ export AFL_PATH='/~/PycharmProjects/driller-afl/venv/bin/afl-unix/tracers/i386'
guest@vm:~/Documents/Fuzzing$ /~/PycharmProjects/driller-afl/venv/bin/afl-unix/afl-fuzz  -i 'afl-master32/qemu-32-test/input' -o 'afl-master32/qemu-32-test/output' -m none -Q ./afl-master32/qemu-32-test/test_new_null_pointer_32 

everything works as excepted.

issue_driller_afl.zip

please your help.

[lzina]

Eventually is worked for me.
I comment 2 lines in fuzzer.py:

1. os.environ['QEMU_LD_PREFIX'] = path
2. args += ["--"] in _start_afl_instance function