Modern Trends in Kernel Security

• New bug-rich subsystems: eBPF (a JIT'd in-kernel VM) and io_uring (high-perf async I/O) added powerful features — and a wave of complex, high-impact bug classes.
• Fuzzing at scale: syzkaller continuously fuzzes syscalls and files thousands of kernel bugs; automated discovery now dwarfs manual review.
• Memory-safe kernel code: Rust for Linux brings drivers written in a memory-safe language into mainline, aiming to eliminate whole UAF/overflow classes at the source.
• Hardware assists: features like control-flow enforcement and memory tagging push more defenses into silicon.