BPF_MAP_CAN_WRITE 465 include/linux/bpf.h return BPF_MAP_CAN_WRITE; BPF_MAP_CAN_WRITE 467 include/linux/bpf.h return BPF_MAP_CAN_READ | BPF_MAP_CAN_WRITE; BPF_MAP_CAN_WRITE 2154 kernel/bpf/verifier.c if (type == BPF_WRITE && !(cap & BPF_MAP_CAN_WRITE)) {