}
s->offset = qemu_opt_get_size(opts, "offset", 0);
+ if (s->offset > real_size) {
+ error_setg(errp, "Offset (%" PRIu64 ") cannot be greater than "
+ "size of the containing file (%" PRId64 ")",
+ s->offset, real_size);
+ ret = -EINVAL;
+ goto end;
+ }
+
if (qemu_opt_find(opts, "size") != NULL) {
s->size = qemu_opt_get_size(opts, "size", 0);
s->has_size = true;
}
/* Check size and offset */
- if (real_size < s->offset || (real_size - s->offset) < s->size) {
+ if ((real_size - s->offset) < s->size) {
error_setg(errp, "The sum of offset (%" PRIu64 ") and size "
"(%" PRIu64 ") has to be smaller or equal to the "
" actual size of the containing file (%" PRId64 ")",