corrupted size vs. prev_size when execute FlatbufferBuilder::CreateVector （version1.11）

[staycalmstayfoolish]

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Dear developers and friends:
I encountered an frustrated issue when I used flatbuffers for data serialization, eg. SIGABRT error, and the backstrace is as following:

(gdb) bt
#0 0x00007ffff6d1b438 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#1 0x00007ffff6d1d03a in __GI_abort () at abort.c:89
#2 0x00007ffff6d5d7fa in __libc_message (do_abort=2, fmt=fmt@entry=0x7ffff6e76f98 "*** Error in `%s': %s: 0x%s \n") at ../sysdeps/posix/libc_fatal.c:175
#3 0x00007ffff6d649ec in malloc_printerr (ar_ptr=0x7fffe8000020, ptr=0x7fffe81f6cb0, str=0x7ffff6e73d35 "_corrupted size vs. prev_size_***", action=) at malloc.c:5020
#4 malloc_consolidate (av=av@entry=0x7fffe8000020) at malloc.c:4190
#5 0x00007ffff6d67d0c in _int_malloc (av=av@entry=0x7fffe8000020, bytes=bytes@entry=1024) at malloc.c:3457
#6 0x00007ffff6d6a1d4 in __GI___libc_malloc (bytes=1024) at malloc.c:2920
#7 0x00007ffff7353e78 in operator new(unsigned long) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#8 0x00007ffff7353f19 in operator new[](unsigned long) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9 0x00007ffff7b7fd2e in flatbuffers::DefaultAllocator::allocate (this=0x7ffff1a8b760, size=1024) at /home/xxx/include/3rd_party/flatbuffers/flatbuffers.h:479
#10 0x00007ffff7b7fe22 in flatbuffers::Allocate (allocator=0x0, size=1024) at /home/xxx/include/3rd_party/flatbuffers/flatbuffers.h:497
#11 0x00007ffff7b80645 in flatbuffers::vector_downward::reallocate (this=0x7fffe8061c90, len=2) at /home/xxx/include/3rd_party/flatbuffers/flatbuffers.h:877
#12 0x00007ffff7b8020d in flatbuffers::vector_downward::ensure_space (this=0x7fffe8061c90, len=2) at /home/xxx/include/3rd_party/flatbuffers/flatbuffers.h:760
#13 0x00007ffff7b80271 in flatbuffers::vector_downward::make_space (this=0x7fffe8061c90, len=2) at /home/xxx/include/3rd_party/flatbuffers/flatbuffers.h:768
#14 0x00007ffff7b8043f in flatbuffers::vector_downward::fill (this=0x7fffe8061c90, zero_pad_bytes=2) at /home/xxx/include/3rd_party/flatbuffers/flatbuffers.h:822
#15 0x00007ffff7b80ed3 in flatbuffers::FlatBufferBuilder::PreAlign (this=0x7fffe8061c90, len=24710, alignment=4) at /home/xxx/include/3rd_party/flatbuffers/flatbuffers.h:1286
#16 0x00007ffff7b83828 in flatbuffers::FlatBufferBuilder::PreAlign (this=0x7fffe8061c90, len=24710) at /home/xxx/include/3rd_party/flatbuffers/flatbuffers.h:1290
#17 0x00007ffff7b81073 in flatbuffers::FlatBufferBuilder::StartVector (this=0x7fffe8061c90, len=24710, elemsize=1) at /home/xxx/include/3rd_party/flatbuffers/flatbuffers.h:1416
#18 0x00007ffff7b843dd in flatbuffers::FlatBufferBuilder::CreateVector (this=0x7fffe8061c90, v=0x7fffe81f6cc0 "", len=24710)

has anyone encountered this problem before. I need your help.

Thanks!

[vglavnyy]

It might help you:
https://stackoverflow.com/questions/49628615/understanding-corrupted-size-vs-prev-size-glibc-error
https://code.woboq.org/userspace/glibc/malloc/malloc.c.html

Probably your program overwrites control blocks of malloc before the call to CreateVector.
Can you run your program with an Address Sanitizer?

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