message: core(stat): disable IPP optimization in meanStdDev (cn > 1)
diff: @@ -1739,6 +1739,13 @@ static bool ipp_meanStdDev(Mat& src, OutputArray _mean, OutputArray _sdv, Mat& m
  #if IPP_VERSION_X100 >= 700
  int cn = src.channels();
  +
  +#if IPP_VERSION_X100 < 201801
  + // IPP_DISABLE: C3C functions can read outside of allocated memory
  + if (cn > 1)
  + return false;
  +#endif
  +
  size_t total_size = src.total();
  int rows = src.size[0], cols = rows ? (int)(total_size/rows) : 0;
  if( src.dims == 2 || (src.isContinuous() && mask.isContinuous() && cols > 0 && (size_t)rows*cols == total_size) )
  