OSV-2022-129 Heap-buffer-overflow in dwg_free_HATCH_private

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=44481 Crash type: Heap-buffer-overflow READ 8 Crash state: dwgfreeHATCHprivate dwgfreeHATCH dwgfreeobject...