2259031d64
fixes https://github.com/openai/codex/issues/9236 ### Motivation - Prevent sandbox setup from failing when unprivileged user namespaces are denied so Landlock-only protections can still be applied. - Ensure `PR_SET_NO_NEW_PRIVS` is set before installing seccomp and Landlock restrictions to avoid kernel `EPERM`/`LandlockRestrict` ordering issues. ### Description - Add `is_permission_denied` helper that detects `EPERM` / `PermissionDenied` from `CodexErr` to drive fallback logic. - In `apply_read_only_mounts` skip read-only bind-mount setup and return `Ok(())` when `unshare_user_and_mount_namespaces()` fails with permission-denied so Landlock rules can still be installed. - Add `set_no_new_privs()` and call it from `apply_sandbox_policy_to_current_thread` before installing seccomp filters and Landlock rules when disk or network access is restricted. |
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|---|---|---|
| .. | ||
| landlock.rs | ||
| lib.rs | ||
| linux_run_main.rs | ||
| main.rs | ||
| mounts.rs | ||