When using 4:2:2, the following code in TComPrediction::initAdiPatternChType() (TComPattern.cpp):

  const Int  iBaseUnitSize    = g_uiMaxCUWidth >> g_uiMaxCUDepth;
  const Int  iUnitWidth       = iBaseUnitSize  >> pcCU->getPic()->getPicYuvRec()->getComponentScaleX(compID);
  const Int  iUnitHeight      = iBaseUnitSize  >> pcCU->getPic()->getPicYuvRec()->getComponentScaleY(compID);
  const Int  iTUWidthInUnits  = uiTuWidth  / iUnitWidth;
  const Int  iTUHeightInUnits = uiTuHeight / iUnitHeight;

can result in iTUHeightInUnits==0 when processing the two halves of a chroma TU, as the TU has been split one further than the height reflected in iUnitHeight. This then leads to a segmentation fault further down when iTUHeightInUnits-1 is used to index an array.