failed to exec system bubblewrap {program_path}: {err}

Error message

failed to exec system bubblewrap {program_path}: {err}

What it means

Error "failed to exec system bubblewrap {program_path}: {err}" thrown in openai/codex.

Source

Thrown at codex-rs/linux-sandbox/src/launcher.rs:232

    let program_path = program.as_path().display().to_string();
    let program = CString::new(program.as_path().as_os_str().as_bytes())
        .unwrap_or_else(|err| panic!("invalid system bubblewrap path: {err}"));
    let cstrings = argv_to_cstrings(&argv);
    let mut argv_ptrs: Vec<*const c_char> = cstrings
        .iter()
        .map(CString::as_c_str)
        .map(CStr::as_ptr)
        .collect();
    argv_ptrs.push(std::ptr::null());

    // SAFETY: `program` and every entry in `argv_ptrs` are valid C strings for
    // the duration of the call. On success `execv` does not return.
    unsafe {
        libc::execv(program.as_ptr(), argv_ptrs.as_ptr());
    }
    let err = std::io::Error::last_os_error();
    panic!("failed to exec system bubblewrap {program_path}: {err}");
}

#[cfg(test)]
mod tests {
    use super::*;
    use pretty_assertions::assert_eq;
    use std::os::unix::fs::PermissionsExt;
    use tempfile::NamedTempFile;

    #[test]
    fn prefers_system_bwrap_when_help_lists_argv0() {
        let fake_bwrap = NamedTempFile::new().expect("temp file");
        let fake_bwrap_path = fake_bwrap.path();
        let expected = AbsolutePathBuf::from_absolute_path(fake_bwrap_path).expect("absolute");

        assert_eq!(
            system_bwrap_launcher_for_path_with_probe(fake_bwrap_path, |_| {
                Some(SystemBwrapCapabilities {

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/linux-sandbox/src/launcher.rs:232 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of openai/codex@339751715c (2026-08-25). Data as JSON: /api/errors/483c135264beaa89. Report an issue: GitHub.