OSV-2026-2 Heap-buffer-overflow in cmt_mpack_consume_uint_tag

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=472785094 Crash type: Heap-buffer-overflow WRITE 8 Crash state: cmtmpackconsumeuinttag cmtmpackunpackarray cmtmpackunpackmap...