LP:641245 - Crash in Item_equal::contains with maria-5.3-mwl89

The following query:

SELECT table1 .`col_time_key`
FROM C table1 JOIN ( A table2 JOIN CC table3 ON table2 .`col_int_key` ) ON table2 .`col_int_key`
WHERE table3 .`col_int_nokey` <= SOME (
SELECT SUBQUERY1_t1 .`col_int_nokey`
FROM CC SUBQUERY1_t1 RIGHT JOIN CC SUBQUERY1_t2 STRAIGHT_JOIN C SUBQUERY1_t3 ON SUBQUERY1_t3 .`col_varchar_key` = SUBQUERY1_t2 .`col_varchar_nokey` ON SUBQUERY1_t3 .`col_int_key` = SUBQUERY1_t2 .`pk` AND 2
WHERE table3 .`pk` ) ;

produces the following stack trace:

#3 <signal handler called>
#4 0x00000000005fbdf8 in Item_equal::contains (this=0x7febf41f71f8, field=0x7febf41dc0d8) at item_cmpfunc.cc:5507
#5 0x00000000005aec77 in Item_field::find_item_equal (this=0x7febf41c1a48, cond_equal=0x7febf41f4378) at item.cc:4652
#6 0x000000000072e568 in eliminate_item_equal (cond=0x7febf41c1f68, upper_levels=0x7febf41f4378, item_equal=0x7febf41f4938) at sql_select.cc:9344
#7 0x000000000072eb49 in substitute_for_best_equal_field (cond=0x7febf41c1f68, cond_equal=0x7febf41c2048, table_join_idx=0x7febf41f5458)
at sql_select.cc:9490
#8 0x0000000000717786 in JOIN::optimize (this=0x7febf41eb3f8) at sql_select.cc:1049
#9 0x000000000058e81b in st_select_lex::optimize_unflattened_subqueries (this=0x34c66c0) at sql_lex.cc:3121
#10 0x00000000007edb7f in JOIN::optimize_unflattened_subqueries (this=0x7febf41e5378) at opt_subselect.cc:3563
#11 0x0000000000718aca in JOIN::optimize (this=0x7febf41e5378) at sql_select.cc:1412
#12 0x000000000071cc44 in mysql_select (thd=0x34c3e30, rref_pointer_array=0x34c68d8, tables=0x7febf41bdc18, wild_num=0, fields=..., conds=0x7febf41c2a78,
og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2147764736, result=0x7febf41e5328, unit=0x34c6240, select_lex=0x34c66c0)
at sql_select.cc:2578
#13 0x0000000000714f28 in handle_select (thd=0x34c3e30, lex=0x34c61a0, result=0x7febf41e5328, setup_tables_done_option=0) at sql_select.cc:276
#14 0x00000000006a7c91 in execute_sqlcom_select (thd=0x34c3e30, all_tables=0x7febf41bdc18) at sql_parse.cc:5081
#15 0x000000000069ebb5 in mysql_execute_command (thd=0x34c3e30) at sql_parse.cc:2265
#16 0x00000000006aa308 in mysql_parse (thd=0x34c3e30,
inBuf=0x7febf409b328 "SELECT table1 .`col_time_key`\nFROM C table1 JOIN ( A table2 JOIN CC table3 ON table2 .`col_int_key` ) ON table2 .`col_int_key`\nWHERE table3 .`col_int_nokey` <= SOME (\nSELECT SUBQUERY1_t1 .`col_"..., length=447, found_semicolon=0x7fec080c5c88) at sql_parse.cc:6027
#17 0x000000000069c426 in dispatch_command (command=COM_QUERY, thd=0x34c3e30,
packet=0x35a7631 "SELECT table1 .`col_time_key`\nFROM C table1 JOIN ( A table2 JOIN CC table3 ON table2 .`col_int_key` ) ON table2 .`col_int_key`\nWHERE table3 .`col_int_nokey` <= SOME (\nSELECT SUBQUERY1_t1 .`col_"..., packet_length=450) at sql_parse.cc:1184
#18 0x000000000069b86d in do_command (thd=0x34c3e30) at sql_parse.cc:890
#19 0x0000000000698411 in handle_one_connection (arg=0x34c3e30) at sql_connect.cc:1153
#20 0x000000307ba07761 in start_thread (arg=0x7fec080c6710) at pthread_create.c:301
#21 0x000000307b6e150d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:115

maria-5.3 is not affected