copyfail-rs

copyfail-rs is a Rust implementation of the Copy Fail exploit (CVE-2026-31431), which demonstrates a local privilege escalation vulnerability on major Linux distributions by chaining the `AF_ALG` and `splice()` syscalls. This tool features a high-performance and memory-safe design, dynamic ELF payload construction, zero-copy exploitation for efficient interaction with the Linux kernel, and allows customization of commands to be executed with root privileges. It is intended strictly for educational and research purposes, focusing on understanding and mitigating similar vulnerabilities.