The short story of broken KRETPROBES and OPTIMIZER in Linux Kernel. During the LKRG development process I’ve found that: KRETPROBES are broken since kernel 5.8 (fixed in upcoming kernel) OPTIMIZER was not doing sufficient job since kernel 5.5 First things first – KPROBES and FTRACE: Linux kernel provides 2 amazing frameworks for hooking – K*ROBES … Continue reading The short story of broken KRETPROBES and OPTIMIZER in Linux Kernel