chaokunyang commented on code in PR #1650:
URL: https://github.com/apache/incubator-fury/pull/1650#discussion_r1618852855
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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:
As you can see, we have `address + readIdx++`. It will read the 5rd bytes
without range check. This will crash jvm if we don't have such big buffer or
data is maliciously constructed
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