Github user clockfly commented on a diff in the pull request:
https://github.com/apache/spark/pull/13829#discussion_r68131571
--- Diff:
sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/codegen/BufferHolder.java
---
@@ -55,6 +60,11 @@ public BufferHolder(UnsafeRow row, int initialSize) {
* Grows the buffer by at least neededSize and points the row to the
buffer.
*/
public void grow(int neededSize) {
+ if (neededSize > Integer.MAX_VALUE / 2 - totalSize()) {
--- End diff --
`final int length = totalSize() + neededSize;`, this can cause integer
overflow, as well as `length * 2`
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