Assertion failed: env_get("LD_PRELOAD") == NULL (run_symlink.c: run_symlink: 81)

[elde-n]

Description

Having LD_PRELOAD set while trying to run a symlinked firejail application in /usr/local/bin/ will cause a failed assertion

Steps to Reproduce

Steps to reproduce the behavior

1. Run in bash as root ln -s /usr/bin/firejail /usr/local/bin/foo
2. Run in bash LD_PRELOAD=1 foo
3. See error Assertion failed: env_get("LD_PRELOAD") == NULL (run_symlink.c: run_symlink: 81)

Additional context

It would be nice to have an option to ignore/drop the LD_PRELOAD env instead of asserting

[rusty-snake]

Which firejail version? Is it reproducible with firejail-git?

[elde-n]

I'm on version 0.9.72, it's reproducible with latest commit, this is the line causing the assertion https://github.com/netblue30/firejail/blob/master/src/firejail/run_symlink.c#L81