Aborted (core dumped) when installed by afl.sh

[Janette88]

Environment

Linux ubuntu 5.15.0-41-generic #44~20.04.1-Ubuntu SMP Fri Jun 24 13:27:29 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux gcc (Ubuntu 9.4.0-1ubuntu1~20.04.1) 9.4.0 radare2 version: git log commit d6cd7e74ba392ea3c224572d031c61c100403257 (grafted, HEAD -> master, origin/master, origin/HEAD)

STEPS:

1) vim radare2/sys/afl.sh
    modified this line : export CC="afl-clang"   ---> export CC="afl-clang-fast"
  and then save 

 2)bash radare2/sys/afl.sh
 3) after installing process,run command as following:
  rabin2 -h
 
Warning: AFL++ tools might need to set AFL_MAP_SIZE to 342709 to be able to run this instrumented program if this crashes!
[-] 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.
Aborted (core dumped)

radare2$ r2 -h
Warning: AFL++ tools might need to set AFL_MAP_SIZE to 320176 to be able to run this instrumented program if this crashes!
Usage: r2 [-ACdfLMnNqStuvwzX] [-P patch] [-p prj] [-a arch] [-b bits] [-i file]
          [-s addr] [-B baddr] [-m maddr] [-c cmd] [-e k=v] file|pid|-|--|=
 --           run radare2 without opening any file
 -            same as 'r2 malloc://512'
 =            read file from stdin (use -i and -c to run cmds)
 -=           perform !=! command to run all commands remotely
 -0           print \x00 after init and every command
 -2           close stderr file descriptor (silent warning messages)
 -a [arch]    set asm.arch
 -A           run 'aaa' command to analyze all referenced code
 -b [bits]    set asm.bits
 -B [baddr]   set base address for PIE binaries
 -c 'cmd..'   execute radare command
 -C           file is host:port (alias for -c+=http://%s/cmd/)
 -d           debug the executable 'file' or running process 'pid'
 -D [backend] enable debug mode (e cfg.debug=true)
 -e k=v       evaluate config var
 -f           block size = file size
 -F [binplug] force to use that rbin plugin
 -h, -hh      show help message, -hh for long
 -H ([var])   display variable
 -i [file]    run script file
 -I [file]    run script file before the file is opened
 -j           use json for -v, -L and maybe others
 -k [OS/kern] set asm.os (linux, macos, w32, netbsd, ...)
 -l [lib]     load plugin file
 -L           list supported IO plugins
 -m [addr]    map file at given address (loadaddr)
 -M           do not demangle symbol names
 -n, -nn      do not load RBin info (-nn only load bin structures)
 -N           do not load user settings and scripts
 -NN          do not load any script or plugin
 -q           quiet mode (no prompt) and quit after -i
 -qq          quit after running all -c and -i
 -Q           quiet mode (no prompt) and quit faster (quickLeak=true)
 -p [prj]     use project, list if no arg, load if no file
 -P [file]    apply rapatch file and quit
 -r [rarun2]  specify rarun2 profile to load (same as -e dbg.profile=X)
 -R [rr2rule] specify custom rarun2 directive
 -s [addr]    initial seek
 -S           start r2 in sandbox mode
 -T           do not compute file hashes
 -u           set bin.filter=false to get raw sym/sec/cls names
 -v, -V       show radare2 version (-V show lib versions)
 -w           open file in write mode
 -x           open without exec-flag (asm.emu will not work), See io.exec
 -X           same as -e bin.usextr=false (useful for dyldcache)
 -z, -zz      do not load strings or load them even in raw

[trufae]

thats an afl related problem, not r2 one i think. did you tried doing what the logs say?

Warning: AFL++ tools might need to set AFL_MAP_SIZE to 342709 to be able to run this instrumented program if this crashes!
[-] 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.
Aborted (core dumped)

[Janette88]

yes, i set export AFL_IGNORE_PROBLEMS=1，and it worked.

rabin2 -I /bin/ls [-] 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. Aborted (core dumped)

export AFL_IGNORE_PROBLEMS=1

rabin2 -I /bin/ls arch x86 baddr 0x0 binsz 140217 bintype elf bits 64 canary true class ELF64 crypto false endian little havecode true intrp /lib64/ld-linux-x86-64.so.2 laddr 0x0 lang c linenum false lsyms false machine AMD x86-64 architecture nx true os linux pic true relocs false relro full rpath NONE sanitize false static false stripped true subsys linux va true

ps: Besides' ignore' method , is there any other way to solve this problem? maybe someone could give me a guidance.