[SlowMist: High-Risk Vulnerability 'Dirty Frag' Found in Linux Systems, Users Urged to Upgrade Promptly] SlowMist Chief Information Security Officer 23pds disclosed that a privilege escalation vulnerability named 'Dirty Frag' has been identified in Linux systems, with full details and exploit code already made public. This vulnerability allows any local low-privilege user to directly obtain root access on almost all mainstream Linux distributions. It is a deterministic logic flaw that does not rely on complex race conditions, has an extremely high success rate, and does not cause kernel crashes, making it highly dangerous. Linux users are advised to upgrade their systems promptly.