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  1. MariaDB Server
  2. MDEV-23534

SIGSEGV in sf_malloc_usable_size/my_free on SET GLOBAL REPLICATE_DO_TABLE

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      Description

      USE test;
      SET SESSION default_master_connection='a';
      CREATE TABLE t(a INT) UNION=(t);
      CHANGE MASTER TO MASTER_USER='a', MASTER_PASSWORD='a';
      SET GLOBAL REPLICATE_DO_TABLE=NULL;
      

      Leads to:

      10.4.15 eae968f62d285de97ed607c87bc131cd863d5d03 (Debug)

      Core was generated by `/test/MD110820-mariadb-10.4.15-linux-x86_64-dbg/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 0x15366c344700 (LWP 1432627))]
      (gdb) bt
      #0  __pthread_kill (threadid=<optimized out>, signo=signo@entry=11) at ../sysdeps/unix/sysv/linux/pthread_kill.c:57
      #1  0x0000564c6424e8a6 in my_write_core (sig=sig@entry=11) at /test/10.4_dbg/mysys/stacktrace.c:482
      #2  0x0000564c639cacdc in handle_fatal_signal (sig=11) at /test/10.4_dbg/sql/signal_handler.cc:343
      #3  <signal handler called>
      #4  sf_malloc_usable_size (ptr=ptr@entry=0x38, is_thread_specific=is_thread_specific@entry=0x15366c340fff "") at /test/10.4_dbg/mysys/safemalloc.c:215
      #5  0x0000564c64249b76 in my_free (ptr=0x38) at /test/10.4_dbg/mysys/my_malloc.c:213
      #6  0x0000564c642264ab in delete_dynamic (array=array@entry=0x15364480ef28) at /test/10.4_dbg/mysys/array.c:302
      #7  0x0000564c6422a6e7 in my_hash_free (hash=hash@entry=0x15364480ef00) at /test/10.4_dbg/mysys/hash.c:158
      #8  0x0000564c6362f152 in Rpl_filter::set_do_table (this=this@entry=0x15364480ef00, table_spec=table_spec@entry=0x0) at /test/10.4_dbg/sql/rpl_filter.cc:358
      #9  0x0000564c6386ee4f in Sys_var_rpl_filter::set_filter_value (this=this@entry=0x564c64ea7320 <Sys_replicate_do_table>, value=0x0, mi=mi@entry=0x153644900000) at /test/10.4_dbg/sql/sys_vars.cc:5028
      #10 0x0000564c6386efd9 in Sys_var_rpl_filter::global_update (this=0x564c64ea7320 <Sys_replicate_do_table>, thd=<optimized out>, var=0x15364486d1e8) at /test/10.4_dbg/sql/sys_vars.cc:5007
      #11 0x0000564c63633a3a in sys_var::update (this=0x564c64ea7320 <Sys_replicate_do_table>, thd=0x153644815070, var=0x15364486d1e8) at /test/10.4_dbg/sql/set_var.cc:208
      #12 0x0000564c63633f75 in set_var::update (this=<optimized out>, thd=<optimized out>) at /test/10.4_dbg/sql/set_var.cc:837
      #13 0x0000564c636352c2 in sql_set_variables (thd=thd@entry=0x153644815070, var_list=var_list@entry=0x153644819ea8, free=free@entry=true) at /test/10.4_dbg/sql/set_var.cc:740
      #14 0x0000564c6371bde0 in mysql_execute_command (thd=thd@entry=0x153644815070) at /test/10.4_dbg/sql/sql_parse.cc:4942
      #15 0x0000564c63722090 in mysql_parse (thd=thd@entry=0x153644815070, rawbuf=<optimized out>, length=<optimized out>, parser_state=parser_state@entry=0x15366c343460, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.4_dbg/sql/sql_parse.cc:7896
      #16 0x0000564c63724920 in dispatch_command (command=command@entry=COM_QUERY, thd=thd@entry=0x153644815070, packet=packet@entry=0x153644857071 "SET GLOBAL replicate_do_TABLE=NULL", packet_length=packet_length@entry=34, is_com_multi=is_com_multi@entry=false, is_next_command=is_next_command@entry=false) at /test/10.4_dbg/sql/sql_parse.cc:1834
      #17 0x0000564c6372835b in do_command (thd=0x153644815070) at /test/10.4_dbg/sql/sql_parse.cc:1352
      #18 0x0000564c638548b6 in do_handle_one_connection (connect=connect@entry=0x153669035790) at /test/10.4_dbg/sql/sql_connect.cc:1412
      #19 0x0000564c638549d6 in handle_one_connection (arg=0x153669035790) at /test/10.4_dbg/sql/sql_connect.cc:1316
      #20 0x000015366b5426db in start_thread (arg=0x15366c344700) at pthread_create.c:463
      #21 0x000015366a6bca3f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95
      

      Bug confirmed present in:
      MariaDB: 10.2.34 (dbg), 10.3.25 (dbg), 10.4.15 (dbg)

      Bug confirmed not present in:
      MariaDB: 10.1.47 (dbg), 10.1.47 (opt), 10.2.34 (opt), 10.3.25 (opt), 10.4.15 (opt), 10.5.6 (dbg), 10.5.6 (opt)
      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:
              sujatha.sivakumar Sujatha Sivakumar
              Reporter:
              Roel Roel Van de Paar
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                Created:
                Updated:
                Resolved: