uint64_t* copied) const {
uint64_t current = address;
uint64_t limit = getBase() + getExtent();
-
- while (current - address < size && current < limit) {
+
+ if (current + size > limit)
+ return -1;
+
+ while (current - address < size) {
if (readByte(current, &buf[(current - address)]))
return -1;