ERROR: AddressSanitizer: heap-buffer-overflow
READ of size 1 at 0x615001d65000 thread T0
    #0 0x4a609c in __asan_memcpy 
    #1 0x7f66a1602f76 in _bson_iter_next_internal src/bson/bson-iter.c:576:11
    #2 0x7f66a1600552 in bson_iter_next src/bson/bson-iter.c:769:11
    #3 0x50e365 in test_bson_iter_fuzz tests/test-iter.c:251:14
0x615001d65000 is located 0 bytes to the right of 512-byte region
allocated by thread T0 here:
    #0 0x4bc368 in __interceptor_malloc (.libs/lt-test-libbson+0x4bc368)
    #1 0x7f66a16230be in bson_malloc src/bson/bson-memory.c:68:11
    #2 0x7f66a15eb3e0 in bson_sized_new src/bson/bson.c:1945:23
    #3 0x7f66a15eba3f in bson_new_from_data src/bson/bson.c:1978:11
    #4 0x50e23f in test_bson_iter_fuzz tests/test-iter.c:235:17
SUMMARY: AddressSanitizer: heap-buffer-overflow  in __asan_memcpy