#12 0x00007f125ea0cce8 in abort () from /lib64/libc.so.6

No symbol table info available.

#13 0x00007f125ea4b317 in __libc_message () from /lib64/libc.so.6

No symbol table info available.

#14 0x00007f125eae3a77 in __fortify_fail () from /lib64/libc.so.6

No symbol table info available.

#15 0x00007f125eae1c30 in __chk_fail () from /lib64/libc.so.6

No symbol table info available.

#16 0x00007f125eae39e7 in __fdelt_warn () from /lib64/libc.so.6

No symbol table info available.

#17 0x00007f1260f7f400 in Ack_receiver::get_slave_sockets (this=this@entry=0x7f1261f4acc0 <ack_receiver>, fds=<optimized out>, fds@entry=0x7f0c797f97c0, count=count@entry=0x7f0c797f979c)

    at mariadb-10.3.9/sql/semisync_master_ack_receiver.cc:189

        __d = 1616

        fd = 1616

        max_fd = 1616

        slave = 0x7f0bcc2f4e08

        it = {<base_ilist_iterator> = {list = 0x7f1261f4ad40 <ack_receiver+128>, el = 0x7f0bcc2f4e18, current = 0x7f0bcc2f4e08}, <No data fields>}

#18 0x00007f1260f7f980 in Ack_receiver::run (this=this@entry=0x7f1261f4acc0 <ack_receiver>)

*** buffer overflow detected ***: /usr/sbin/mysqld terminated

...

======= Backtrace: =========

/lib64/libc.so.6(__fortify_fail+0x37)[0x7fa3b998ba77]

/lib64/libc.so.6(+0x10bc30)[0x7fa3b9989c30]

/lib64/libc.so.6(+0x10d9e7)[0x7fa3b998b9e7]

/usr/sbin/mysqld(_ZN12Ack_receiver17get_slave_socketsEP6fd_setPj+0x70)[0x7fa3bbe27400]

/usr/sbin/mysqld(_ZN12Ack_receiver3runEv+0x540)[0x7fa3bbe27980]

/usr/sbin/mysqld(ack_receive_handler+0x19)[0x7fa3bbe27a79]

/lib64/libpthread.so.0(+0x7dc5)[0x7fa3bb31ddc5]

/lib64/libc.so.6(clone+0x6d)[0x7fa3b99741cd]

======= Memory map: ========

...