chaokunyang commented on code in PR #1650:
URL: https://github.com/apache/incubator-fury/pull/1650#discussion_r1618613469


##########
java/fury-core/src/main/java/org/apache/fury/memory/MemoryBuffer.java:
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@@ -1774,7 +1774,7 @@ private long readVarUint36Slow() {
   /** Reads the 1-5 byte int part of a non-negative varint. */
   public int readVarUint32() {
     int readIdx = readerIndex;
-    if (size - readIdx < 5) {
+    if (size - readIdx < 4) {

Review Comment:
   later `result |= (UNSAFE.getByte(heapMemory, address + readIdx++) & 0x7F) << 
28;` wqill read one more byte without check. If we lower threshold, we may get 
crash in such cases.



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