diff
< 	for (i = 0; i < new_coalesce.n_rules; i++) {
< 		tmp_rule = &new_coalesce.rules[i];
---
> 	if (new_coalesce.rules == NULL)
> 		return; // or handle error appropriately
> 	for (i = 0; i < new_coalesce.n_rules; i++) {
> 		tmp_rule = &new_coalesce.rules[i];
