Exercise7 - crash when running vlc-demux-run

[sheepbelldoor]

Hi, I met a crash that occurred while fuzzing vlc. Build process is same as exercise7, and used input file was also provided in exercise7. The same problem occurred even when fuzzing harness was not applied.

╭─   ~/fuzzing_vlc/vlc-3.0.7.1/test
╰─❯ ./vlc-demux-run ../afl_in/short2.wmv
[-] FATAL: forkserver is already up, but an instrumented dlopen() library loaded afterwards. You must AFL_PRELOAD such libraries to be able to fuzz them or LD_PRELOAD to run outside of afl-fuzz.
To ignore this set AFL_IGNORE_PROBLEMS=1.
[1]    1353391 abort      ./vlc-demux-run ../afl_in/short2.wmv