[HIVE-8458] Potential null dereference in Utilities#clearWork()

• Type: Bug
• Status: Patch Available
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 0.13.1
• Assignee: skrho
• Reporter: Ted Yu
• Created: 14/Oct/14 18:13
• Updated: 05/Nov/16 04:55

Description

    Path mapPath = getPlanPath(conf, MAP_PLAN_NAME);
    Path reducePath = getPlanPath(conf, REDUCE_PLAN_NAME);

    // if the plan path hasn't been initialized just return, nothing to clean.
    if (mapPath == null && reducePath == null) {
      return;
    }

    try {
      FileSystem fs = mapPath.getFileSystem(conf);

If mapPath is null but reducePath is not null, getFileSystem() call would produce NPE