fix: ZRANGE with LIMIT parameters crash fixed (#4944)

fixed: #4943

Author: vyavdoshenko

src/server/container_utils.cc

@@ -217,6 +217,9 @@ bool IterateSortedSet(const detail::RobjWrapper* robj_wrapper, const IterateSort
   if (end < 0 || unsigned(end) >= llen)
     end = llen - 1;
 
+  if (start > end || unsigned(start) >= llen)
+    return true;
+
   unsigned rangelen = unsigned(end - start) + 1;
 
   if (robj_wrapper->encoding() == OBJ_ENCODING_LISTPACK) {

src/server/zset_family_test.cc

@@ -1212,4 +1212,10 @@ TEST_F(ZSetFamilyTest, RangeStore) {
   EXPECT_THAT(resp, ArrLen(0));
 }
 
+TEST_F(ZSetFamilyTest, ZRangeZeroElements) {
+  Run({"zadd", "myzset", "1", "one"});
+  auto resp = Run({"ZRANGE", "myzset", "0", "-1", "LIMIT", "2", "10"});
+  ASSERT_THAT(resp, ArrLen(0));
+}
+
 }  // namespace dfly