external/freetype/ubsan.patch

   1 --- src/psaux/psobjs.c.orig     2023-02-04 23:00:05.000000000 +0900
   2 +++ src/psaux/psobjs.c  2023-02-22 16:28:26.632283841 +0900
   3 @@ -200,7 +200,8 @@
   4      /* add the object to the base block and adjust offset */
   5      table->elements[idx] = FT_OFFSET( table->block, table->cursor );
   6      table->lengths [idx] = length;
   7 -    FT_MEM_COPY( table->block + table->cursor, object, length );
   8 +    if (length != 0)
   9 +      FT_MEM_COPY( table->block + table->cursor, object, length );
  10
  11      table->cursor += length;
  12      return FT_Err_Ok;
  13 --- src/truetype/ttgxvar.c
  14 +++ src/truetype/ttgxvar.c
  15 @@ -1045,7 +1045,7 @@
  16      if ( varData->longWords )
  17        per_region_size *= 2;
  18
  19 -    bytes = varData->deltaSet + per_region_size * innerIndex;
  20 +    bytes = varData->deltaSet ? varData->deltaSet + per_region_size * innerIndex : NULL;
  21
  22      if ( varData->longWords )
  23      {