@@ -1192,7 +1192,7 @@ unsigned int ds_get_hash(str *x, str *y)

 	if(!x && !y)

 		return 0;

 	h = 0;

-	if(x) {

+	if(x && x->s) {

 		p = x->s;

 		if(x->len >= 4) {

 			for(; p <= (x->s + x->len - 4); p += 4) {

@@ -1207,7 +1207,7 @@ unsigned int ds_get_hash(str *x, str *y)

 		}

 		h += v ^ (v >> 3);

 	}

-	if(y) {

+	if(y && y->s) {

 		p = y->s;

 		if(y->len >= 4) {

 			for(; p <= (y->s + y->len - 4); p += 4) {