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  1. MariaDB Server
  2. MDEV-22498

SIGSEGV in Bitmap<64u>::merge on SELECT

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      USE test;
      SET SESSION sql_select_limit=0;
      CREATE TABLE t(b INT);
      CREATE TEMPORARY TABLE t(a INT);
      DROP TABLE IF EXISTS t;
      CREATE TABLE t2(a TEXT);
      SELECT * FROM t2 HAVING a IN (SELECT a FROM t);
      

      Leads to:

      10.5.3 64488a6f2dd6aa43462292b757e783cfba11a8c6

      Core was generated by `/test/MD050520-mariadb-10.5.3-linux-x86_64-opt/bin/mysqld --no-defaults --core-'.
      Program terminated with signal SIGSEGV, Segmentation fault.
      #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11)
          at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      [Current thread is 1 (Thread 0x14642c359700 (LWP 49916))]
      (gdb) bt
      #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      #1  0x000055a6d343e757 in my_write_core (sig=sig@entry=11) at /test/10.5_opt/mysys/stacktrace.c:518
      #2  0x000055a6d2e0081a in handle_fatal_signal (sig=11) at /test/10.5_opt/sql/signal_handler.cc:329
      #3  <signal handler called>
      #4  Bitmap<64u>::merge (map2=..., this=<optimized out>) at /test/10.5_opt/sql/sql_bitmap.h:211
      #5  add_key_field (join=join@entry=0x14640984a820, key_fields=key_fields@entry=0x14642c356f58, and_level=and_level@entry=0, cond=cond@entry=0x14640984bf08, field=field@entry=0x14640985c868, eq_func=eq_func@entry=true, value=0x14640984bfa0, usable_tables=18446744073709551615, sargables=0x14642c357028, row_col_no=0, num_values=1) at /test/10.5_opt/sql/sql_select.cc:5921
      #6  0x000055a6d2c3516c in add_key_equal_fields (join=join@entry=0x14640984a820, key_fields=key_fields@entry=0x14642c356f58, and_level=0, cond=cond@entry=0x14640984bf08, field_item=0x14640984a5a0, eq_func=eq_func@entry=true, val=0x14640984bfa0, usable_tables=18446744073709551615, sargables=0x14642c357028, row_col_no=0, num_values=1) at /test/10.5_opt/sql/sql_select.cc:6038
      #7  0x000055a6d2c3c3a7 in Item_bool_func2::add_key_fields_optimize_op (this=0x14640984bf08, join=0x14640984a820, key_fields=0x14642c356f58, and_level=0x14642c356f54, usable_tables=18446744073709551615, sargables=0x14642c357028, equal_func=true) at /test/10.5_opt/sql/sql_select.cc:6321
      #8  0x000055a6d2e477cf in Item_func_eq::add_key_fields (this=<optimized out>, join=<optimized out>, key_fields=<optimized out>, and_level=<optimized out>, usable_tables=<optimized out>, sargables=<optimized out>) at /test/10.5_opt/sql/item_cmpfunc.h:727
      #9  0x000055a6d2c3c9c3 in update_ref_and_keys (thd=0x146409812018, keyuse=keyuse@entry=0x14642c357030, join_tab=0x14640984b498, tables=1, cond=0x14640984bf08, normal_tables=18446744073709551615, sargables=0x14642c357028, select_lex=<optimized out>, select_lex=<optimized out>) at /test/10.5_opt/sql/sql_select.cc:6794
      #10 0x000055a6d2c61222 in JOIN::reoptimize (this=this@entry=0x14640984a820, added_where=<optimized out>, join_tables=join_tables@entry=1, save_to=save_to@entry=0x0) at /test/10.5_opt/sql/sql_select.cc:27926
      #11 0x000055a6d2d3b302 in JOIN::choose_subquery_plan (this=this@entry=0x14640984a820, join_tables=1) at /test/10.5_opt/sql/opt_subselect.cc:6616
      #12 0x000055a6d2c674b1 in make_join_statistics (keyuse_array=0x14640984ab10, tables_list=..., join=0x14640984a820) at /test/10.5_opt/sql/sql_select.cc:5589
      #13 JOIN::optimize_inner (this=this@entry=0x14640984a820) at /test/10.5_opt/sql/sql_select.cc:2260
      #14 0x000055a6d2c67acb in JOIN::optimize (this=this@entry=0x14640984a820) at /test/10.5_opt/sql/sql_select.cc:1606
      #15 0x000055a6d2bed525 in st_select_lex::optimize_unflattened_subqueries (this=0x1464098470f0, const_only=const_only@entry=false) at /test/10.5_opt/sql/sql_lex.cc:4779
      #16 0x000055a6d2d396b3 in JOIN::optimize_unflattened_subqueries (this=this@entry=0x14640984a018) at /test/10.5_opt/sql/opt_subselect.cc:5547
      #17 0x000055a6d2c61f2b in JOIN::optimize_stage2 (this=this@entry=0x14640984a018) at /test/10.5_opt/sql/sql_select.cc:3042
      #18 0x000055a6d2c6597d in JOIN::optimize_inner (this=this@entry=0x14640984a018) at /test/10.5_opt/sql/sql_select.cc:2286
      #19 0x000055a6d2c67acb in JOIN::optimize (this=this@entry=0x14640984a018) at /test/10.5_opt/sql/sql_select.cc:1606
      #20 0x000055a6d2c67bd1 in mysql_select (thd=thd@entry=0x146409812018, tables=0x1464098476e8, fields=..., conds=0x0, og_num=<optimized out>, order=0x0, group=0x0, having=0x1464098493f8, proc_param=0x0, select_options=2147748608, result=0x146409849ff0, unit=0x146409815e68, select_lex=0x1464098470f0) at /test/10.5_opt/sql/sql_select.cc:4655
      #21 0x000055a6d2c685e1 in handle_select (thd=thd@entry=0x146409812018, lex=lex@entry=0x146409815da0, result=result@entry=0x146409849ff0, setup_tables_done_option=setup_tables_done_option@entry=0) at /test/10.5_opt/sql/sql_select.cc:417
      #22 0x000055a6d2c0f1c1 in execute_sqlcom_select (thd=thd@entry=0x146409812018, all_tables=0x1464098476e8) at /test/10.5_opt/sql/sql_parse.cc:6172
      #23 0x000055a6d2c0b0e2 in mysql_execute_command (thd=thd@entry=0x146409812018) at /test/10.5_opt/sql/sql_parse.cc:3901
      #24 0x000055a6d2c1227c in mysql_parse (thd=0x146409812018, rawbuf=<optimized out>, length=46, parser_state=0x14642c3584d0, is_com_multi=<optimized out>, is_next_command=<optimized out>) at /test/10.5_opt/sql/sql_parse.cc:7957
      #25 0x000055a6d2c078a5 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x146409812018, packet=packet@entry=0x14640983a019 "SELECT * FROM t2 HAVING a IN (SELECT a FROM t)", packet_length=packet_length@entry=46, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.5_opt/sql/sql_parse.cc:1839
      #26 0x000055a6d2c05b36 in do_command (thd=0x146409812018) at /test/10.5_opt/sql/sql_parse.cc:1358
      #27 0x000055a6d2cfa2ee in do_handle_one_connection (connect=<optimized out>, connect@entry=0x14642a0329b8, put_in_cache=put_in_cache@entry=true) at /test/10.5_opt/sql/sql_connect.cc:1422
      #28 0x000055a6d2cfa494 in handle_one_connection (arg=arg@entry=0x14642a0329b8) at /test/10.5_opt/sql/sql_connect.cc:1319
      #29 0x000055a6d30665ea in pfs_spawn_thread (arg=0x14642a04b018) at /test/10.5_opt/storage/perfschema/pfs.cc:2201
      #30 0x000014642b7806db in start_thread (arg=0x14642c359700) at pthread_create.c:463
      #31 0x000014642ab7e88f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      Bug confirmed present in:
      MariaDB: 10.1.45 (dbg), 10.1.45 (opt), 10.2.32 (dbg), 10.2.32 (opt), 10.3.23 (dbg), 10.3.23 (opt), 10.4.13 (dbg), 10.4.13 (opt), 10.5.2 (dbg), 10.5.2 (opt), 10.5.3 (dbg), 10.5.3 (opt)

      Bug confirmed not present in:
      MySQL: 5.5.62 (dbg), 5.5.62 (opt), 5.6.47 (dbg), 5.6.47 (opt), 5.7.29 (dbg), 5.7.29 (opt), 8.0.19 (dbg), 8.0.19 (opt)

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              Assignee:
              varun Varun Gupta
              Reporter:
              Roel Roel Van de Paar
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                Created:
                Updated:
                Resolved: