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