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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