const struct ofpact *ofpacts = rule->ofpacts;
size_t ofpacts_len = rule->ofpacts_len;
- if (ofpacts->type == OFPACT_CONTROLLER &&
+ if (ofpacts_len > 0 &&
+ ofpacts->type == OFPACT_CONTROLLER &&
ofpact_next(ofpacts) >= ofpact_end(ofpacts, ofpacts_len)) {
return true;
}