[HADOOP-12677] DecompressorStream throws IndexOutOfBoundsException when calling skip(long)

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 2.4.0, 2.6.0, 3.0.0-alpha1
• Component/s: io
• Labels: pull-request-available
• Assignee: Wei-Chiu Chuang
• Reporter: Laurent Goujon
• Created: 24/Dec/15 02:38
• Updated: 24/Jul/23 22:10

Description

DecompressorStream.skip(long) throws an IndexOutOfBoundException when using a long bigger than Integer.MAX_VALUE

This is because of this cast from long to int: https://github.com/apache/hadoop-common/blob/HADOOP-3628/src/core/org/apache/hadoop/io/compress/DecompressorStream.java#L125

The fix is probably to do the cast after applying Math.min: in that case, it should not be an issue since it should not be bigger than the buffer size (512)

Issue Links

• links to: GitHub Pull Request #5886