[HIVE-18142] Data corruption can cause SerializationUtils.readRemainingLongs() function hang

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.0.0
• Assignee: Unassigned
• Reporter: John Doe
• Created: 24/Nov/17 07:06
• Updated: 21/Oct/22 07:20

Description

Similar to the SerializationUtils.readLongBE() function reported in HIVE-13397, when Instream is corrupted, the following loop can become infinite, too.

  private void readRemainingLongs(long[] buffer, int offset, InStream input, int remainder,
      int numBytes) throws IOException {
    final int toRead = remainder * numBytes;
    // bulk read to buffer
    int bytesRead = input.read(readBuffer, 0, toRead);
    while (bytesRead != toRead) {
      bytesRead += input.read(readBuffer, bytesRead, toRead - bytesRead);
    }
    ...
}