id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
934	g_auiRasterToZscan Address Calculation out of range in TComPattern::initPattern	yul		"In TComPattern::initPattern function, 

  if( uiCurrPicPelY != 0 )
  {
    UInt uiNumPartInWidth = ( uiWidth/pcPic->getMinCUWidth() );
    uiOffsetAbove = 1;
    
    if( uiCurrPicPelX + uiWidth < pcCU->getSlice()->getSPS()->getPicWidthInLumaSamples() )
    {
      if( ( g_auiZscanToRaster[uiAbsZorderIdx] + uiNumPartInWidth ) % pcPic->getNumPartInWidth() ) // Not CU boundary
      {
        if( g_auiRasterToZscan[ (Int)g_auiZscanToRaster[uiAbsZorderIdx] - (Int)pcPic->getNumPartInWidth() + (Int)uiNumPartInWidth ] < uiAbsZorderIdx )
        {
          uiOffsetRight = 1;
        }
      }
      ...

The g_auiRasterToZscan[ (Int)g_auiZscanToRaster[uiAbsZorderIdx] - (Int)pcPic->getNumPartInWidth() + (Int)uiNumPartInWidth ] may have out of range problem, due to the calculation of (Int)g_auiZscanToRaster[uiAbsZorderIdx] - (Int)pcPic->getNumPartInWidth() + (Int)uiNumPartInWidth may be < 0. This will cause the visiting address of g_auiRasterToZscan[] is out of range and random value is obtained. It should be changed as follows:

  if( uiCurrPicPelY != 0 )
  {
    UInt uiNumPartInWidth = ( uiWidth/pcPic->getMinCUWidth() );
    uiOffsetAbove = 1;
    
    if( uiCurrPicPelX + uiWidth < pcCU->getSlice()->getSPS()->getPicWidthInLumaSamples() )
    {
      if( ( g_auiZscanToRaster[uiAbsZorderIdx] + uiNumPartInWidth ) % pcPic->getNumPartInWidth() ) // Not CU boundary
      {
         if ((Int)g_auiZscanToRaster[uiAbsZorderIdx] - (Int)pcPic->getNumPartInWidth() + (Int)uiNumPartInWidth >= 0 ) 
         {
           if( g_auiRasterToZscan[ (Int)g_auiZscanToRaster[uiAbsZorderIdx] - (Int)pcPic->getNumPartInWidth() +   (Int)uiNumPartInWidth ] < uiAbsZorderIdx )
           {
              uiOffsetRight = 1;
           }
         }
      }
      ...


"	defect	closed	minor	HM-9.2	HM	HM-9.1	fixed		fbossen ksuehring davidf jct-vc@…