On 02/06/2020 18:32, Alexei Starovoitov wrote: > The target for bpf codegen is JITs. > bpf interpreter is simulating hw. > For now if you want UB fuzzer running in your environment please add > _out_of_tree_ patch that inits all interpreter registers to zero. +1 to all the above.
Also, note that you can still fuzz BPF JITs by building the kernel without the interpreter: CONFIG_BPF_JIT_ALWAYS_ON.
