(gdb) 
Thread 13 "mariadbd" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffd32f4700 (LWP 675795)]
0x0000000000000000 in ?? ()
(gdb) bt
#0  0x0000000000000000 in ?? ()
#1  0x0000555555f0c54e in crypt () at /home/mariadb/sql/my_decimal.h:147
#2  0x00005555568e58ad in Item_func_encrypt::val_str (this=0x6290000e6e70, str=0x7fffd32f1e08)
    at /home/mariadb/sql/item_strfunc.cc:2741
#3  0x0000555556613afe in Type_handler::Item_send_str (this=<optimized out>, item=0x6290000e6e70, 
    protocol=0x1, buf=0x1) at /home/mariadb/sql/sql_type.cc:7468
#4  0x0000555555ffea7b in Protocol::send_result_set_row (this=0x62c0001c08a0, row_items=<optimized out>)
    at /home/mariadb/sql/protocol.cc:1333
#5  0x000055555611885a in select_send::send_data (this=0x6290000e8078, items=...)
    at /home/mariadb/sql/sql_class.cc:3136
#6  0x00005555562ac2b7 in select_result_sink::send_data_with_check (this=0x60e000028068, items=..., 
    u=<optimized out>, sent=<optimized out>) at /home/mariadb/sql/sql_class.h:5978
#7  end_send (join=0x6290000e80a8, join_tab=0x629000181718, end_of_records=<optimized out>)
    at /home/mariadb/sql/sql_select.cc:24911
#8  0x00005555562f86b2 in evaluate_join_record (join=join@entry=0x6290000e80a8, 
    join_tab=join_tab@entry=0x6290001812a8, error=error@entry=0) at /home/mariadb/sql/sql_select.cc:23837
#9  0x0000555556273e6a in sub_select (join=0x6290000e80a8, join_tab=0x6290001812a8, 
    end_of_records=<optimized out>) at /home/mariadb/sql/sql_select.cc:23604
#10 0x00005555562b82b4 in do_select (join=join@entry=0x6290000e80a8, procedure=<optimized out>)
    at /home/mariadb/sql/sql_select.cc:23115
--Type <RET> for more, q to quit, c to continue without paging--
#11 0x00005555562b6c0a in JOIN::exec_inner (this=this@entry=0x6290000e80a8)
    at /home/mariadb/sql/sql_select.cc:4988
#12 0x00005555562b5444 in JOIN::exec (this=this@entry=0x6290000e80a8) at /home/mariadb/sql/sql_select.cc:4774
#13 0x00005555562753c8 in mysql_select (thd=0x60e000027f88, thd@entry=0x62c0001c0288, tables=0x6290000e7000, 
    fields=..., conds=0x0, og_num=0, order=<optimized out>, group=<optimized out>, having=<optimized out>, 
    proc_param=<optimized out>, select_options=<optimized out>, result=<optimized out>, unit=<optimized out>, 
    select_lex=<optimized out>) at /home/mariadb/sql/sql_select.cc:5304
#14 0x0000555556274a38 in handle_select (thd=thd@entry=0x62c0001c0288, lex=lex@entry=0x62c0001c4628, 
    result=<optimized out>, result@entry=0x6290000e8078, 
    setup_tables_done_option=setup_tables_done_option@entry=0) at /home/mariadb/sql/sql_select.cc:630
#15 0x00005555561eb7a4 in execute_sqlcom_select (thd=thd@entry=0x62c0001c0288, all_tables=0x6290000e7000)
    at /home/mariadb/sql/sql_parse.cc:6077
#16 0x00005555561e0ba3 in mysql_execute_command (thd=thd@entry=0x62c0001c0288, 
    is_called_from_prepared_stmt=52) at /home/mariadb/sql/sql_parse.cc:3926
#17 0x00005555561d19e8 in mysql_parse (thd=thd@entry=0x62c0001c0288, 
    rawbuf=0x6290000e62a8 "SELECT v1, v2, v3, ENCRYPT('secret', 'salt') AS crypt_encrypted FROM t2", 
    length=<optimized out>, parser_state=parser_state@entry=0x7fffd32f3400)
    at /home/mariadb/sql/sql_parse.cc:7798
#18 0x00005555561cd644 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x62c0001c0288, 
    packet=packet@entry=0x6290000dc289 "", packet_length=packet_length@entry=71, blocking=156)
--Type <RET> for more, q to quit, c to continue without paging--
    at /home/mariadb/sql/sql_parse.cc:1893
#19 0x00005555561d2812 in do_command (thd=0x62c0001c0288, blocking=100) at /home/mariadb/sql/sql_parse.cc:1406
#20 0x00005555564ad3f6 in do_handle_one_connection (connect=<optimized out>, connect@entry=0x611000026188, 
    put_in_cache=4) at /home/mariadb/sql/sql_connect.cc:1417
#21 0x00005555564acfbc in handle_one_connection (arg=arg@entry=0x611000026188)
    at /home/mariadb/sql/sql_connect.cc:1319
#22 0x0000555556e345ff in pfs_spawn_thread (arg=0x618000006108)
    at /home/mariadb/storage/perfschema/pfs.cc:2201
#23 0x00007ffff7c1a609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#24 0x00007ffff7751353 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95