openai/codex · error

failed to prepare host proxy routing bridge: {err}

Error message

failed to prepare host proxy routing bridge: {err}

What it means

Error "failed to prepare host proxy routing bridge: {err}" thrown in openai/codex.

Source

Thrown at codex-rs/linux-sandbox/src/linux_run_main.rs:296

        if let Err(e) = apply_permission_profile_to_current_thread(
            &permission_profile,
            &sandbox_policy_cwd,
            /*apply_landlock_fs*/ false,
            allow_network_for_proxy,
            /*proxy_routed_network*/ false,
        ) {
            panic!("error applying Linux sandbox restrictions: {e:?}");
        }
        exec_or_panic(command);
    }

    if !use_legacy_landlock {
        // Outer stage: bubblewrap first, then re-enter this binary in the
        // sandboxed environment to apply seccomp. This path never falls back
        // to legacy Landlock on failure.
        let proxy_route_spec = if allow_network_for_proxy {
            let (proxy_route_spec, socket_dir) = prepare_host_proxy_route_spec()
                .unwrap_or_else(|err| panic!("failed to prepare host proxy routing bridge: {err}"));
            file_system_sandbox_policy = file_system_sandbox_policy.with_additional_readable_roots(
                &sandbox_policy_cwd,
                std::slice::from_ref(&socket_dir),
            );
            Some(proxy_route_spec)
        } else {
            None
        };
        let inner = build_inner_seccomp_command(InnerSeccompCommandArgs {
            sandbox_policy_cwd: &sandbox_policy_cwd,
            command_cwd: command_cwd.as_deref(),
            permission_profile: &permission_profile,
            allow_network_for_proxy,
            proxy_route_spec,
            command,
        });
        run_bwrap_with_proc_fallback(
            &sandbox_policy_cwd,

View on GitHub (pinned to 339751715c)

When it happens

Trigger: Thrown at codex-rs/linux-sandbox/src/linux_run_main.rs:296 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/05ef36292fb5716a. Report an issue: GitHub.