PROGRAM ABORT : Null reference Location : stricmp(), src/afl-fuzz.c:490

[Pr0methean]

I get this error when running a fuzz target on a GitHub Actions ubuntu-latest runner:

Run actions-rs/cargo@v1
  with:
    command: afl
    args: fuzz -i /home/runner/work/zip2/zip2/fuzz_read/in -o out -V 3600 -a binary -- /home/runner/work/zip2/zip2/fuzz_read/target/debug/fuzz_read
    use-cross: false
  env:
    RUSTFLAGS: -Dwarnings
/home/runner/.cargo/bin/cargo afl fuzz -i /home/runner/work/zip2/zip2/fuzz_read/in -o out -V 3600 -a binary -- /home/runner/work/zip2/zip2/fuzz_read/target/debug/fuzz_read
afl-fuzz++4.31c based on afl by Michal Zalewski and a large online community
25h
[-] PROGRAM ABORT : Null reference
         Location : stricmp(), src/afl-fuzz.c:490

The output of cargo afl system-config was:

Run actions-rs/cargo@v1
  with:
    command: afl
    args: system-config
    use-cross: false
  env:
    RUSTFLAGS: -Dwarnings
/home/runner/.cargo/bin/cargo afl system-config
Running: "sudo" "--reset-timestamp" "/home/runner/.local/share/afl.rs/rustc-1.87.0-nightly-617aad8/afl.rs-0.15.15/afl/bin/afl-system-config"
This reconfigures the system to have a better fuzzing performance.
WARNING: this reduces the security of the system!

sysctl: cannot stat /proc/sys/kernel/sched_child_runs_first: No such file or directory
Settings applied.

It is recommended to boot the kernel with lots of security off - if you are running a machine that is in a secured network - so set this:
  /etc/default/grub:GRUB_CMDLINE_LINUX_DEFAULT="ibpb=off ibrs=off kpti=0 l1tf=off mds=off mitigations=off no_stf_barrier noibpb noibrs pcid nopti nospec_store_bypass_disable nospectre_v1 nospectre_v2 pcid=on pti=off spec_store_bypass_disable=off spectre_v2=off stf_barrier=off srbds=off noexec=off noexec32=off tsx=on tsx_async_abort=off arm64.nopauth audit=0 hardened_usercopy=off ssbd=force-off"

If you run fuzzing instances in docker, run them with "--security-opt seccomp=unconfined" for more speed.

Updating from 0.15.10 to 0.15.15 doesn't fix this.

[Pr0methean]

I've tried installing llvm separately from the Rust toolchain (the way this repo's CI workflow does) and running cargo afl config --plugins --force or cargo afl config --build --plugins --force, but I still get the error.

[Pr0methean]

Update: On my Ubuntu laptop, I managed to fix this by removing the flag -a binary. The input corpus is in binary format, but the input dictionary is in text format. Checking whether that fixes it in GitHub Actions...