oss-fuzz: Issue 67702: opennavsurf-bag:bag_extended_fuzzer: Heap-buffer-overflow in H5VM_memcpyvv

[selimnairb]

oss-fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=67702
details: https://oss-fuzz.com/testcase-detail/5373393081794560