panic handling

Panic handling in Rust-based systems like OSTree can introduce denial-of-service vulnerabilities when unsafe routines attempt to report a prior panic, leading to double-unwind or abort scenarios. A specific example is CVE-2022-47085, where a panic-printing helper in OSTree's Rust bindings could itself panic, allowing an attacker to crash OSTree-driven components. The fix replaced eprintln!-based reporting with a conservative direct stderr write. This tag covers discussions of safe panic handling practices, particularly in Rust bindings and system-level software, to prevent such vulnerabilities.