ASAN use-after-poison in Query_log_event::Query_log_event / THD::log_events_and_free_tmp_shares

--source include/have_log_bin.inc

--connect (con1,localhost,root,,)

CREATE TEMPORARY TABLE tmp (a INT);

--send

  CREATE TABLE non_existing_db.t SELECT SLEEP(2) AS b;

--disconnect con1

--connection default

==27246==ERROR: AddressSanitizer: use-after-poison on address 0x62b0000a8bf8 at pc 0x55c23b0c854f bp 0x7f3973995e40 sp 0x7f3973995e38

READ of size 4 at 0x62b0000a8bf8 thread T29

    #0 0x55c23b0c854e in Query_log_event::Query_log_event(THD*, char const*, unsigned long, bool, bool, bool, int) /data/src/10.4/sql/log_event.cc:4433

    #1 0x55c23ac226fc in THD::log_events_and_free_tmp_shares() /data/src/10.4/sql/temporary_tables.cc:1382

    #2 0x55c23ac1dd1a in THD::close_temporary_tables() /data/src/10.4/sql/temporary_tables.cc:523

    #3 0x55c23a5a7193 in THD::cleanup() /data/src/10.4/sql/sql_class.cc:1525

    #4 0x55c23a40e9f7 in unlink_thd(THD*) /data/src/10.4/sql/mysqld.cc:2627

    #5 0x55c23a40f371 in one_thread_per_connection_end(THD*, bool) /data/src/10.4/sql/mysqld.cc:2776

    #6 0x55c23aa125eb in do_handle_one_connection(CONNECT*) /data/src/10.4/sql/sql_connect.cc:1418

    #7 0x55c23aa11eb9 in handle_one_connection /data/src/10.4/sql/sql_connect.cc:1306

    #8 0x7f399721c4a3 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x74a3)

    #9 0x7f3995764d0e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe8d0e)

0x62b0000a8bf8 is located 2552 bytes inside of 24716-byte region [0x62b0000a8200,0x62b0000ae28c)

allocated by thread T29 here:

    #0 0x7f39974f3d28 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1d28)

    #1 0x55c23bed84aa in sf_malloc /data/src/10.4/mysys/safemalloc.c:118

    #2 0x55c23beaa74b in my_malloc /data/src/10.4/mysys/my_malloc.c:101

    #3 0x55c23be8a48e in reset_root_defaults /data/src/10.4/mysys/my_alloc.c:151

    #4 0x55c23a5a6417 in THD::init_for_queries() /data/src/10.4/sql/sql_class.cc:1385

    #5 0x55c23aa11876 in prepare_new_connection_state(THD*) /data/src/10.4/sql/sql_connect.cc:1237

    #6 0x55c23aa11eff in thd_prepare_connection(THD*) /data/src/10.4/sql/sql_connect.cc:1321

    #7 0x55c23aa124af in do_handle_one_connection(CONNECT*) /data/src/10.4/sql/sql_connect.cc:1391

    #8 0x55c23aa11eb9 in handle_one_connection /data/src/10.4/sql/sql_connect.cc:1306

    #9 0x7f399721c4a3 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x74a3)

Thread T29 created by T0 here:

    #0 0x7f3997462f59 in __interceptor_pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.3+0x30f59)

    #1 0x55c23bf03ab2 in spawn_thread_noop /data/src/10.4/mysys/psi_noop.c:187

    #2 0x55c23a4051b8 in inline_mysql_thread_create /data/src/10.4/include/mysql/psi/mysql_thread.h:1268

    #3 0x55c23a41930d in create_thread_to_handle_connection(CONNECT*) /data/src/10.4/sql/mysqld.cc:6238

    #4 0x55c23a419a04 in create_new_thread(CONNECT*) /data/src/10.4/sql/mysqld.cc:6308

    #5 0x55c23a419d8f in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /data/src/10.4/sql/mysqld.cc:6406

    #6 0x55c23a41a9f0 in handle_connections_sockets() /data/src/10.4/sql/mysqld.cc:6564

    #7 0x55c23a418b51 in mysqld_main(int, char**) /data/src/10.4/sql/mysqld.cc:5896

    #8 0x55c23a40309f in main /data/src/10.4/sql/main.cc:25

    #9 0x7f399569c2e0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202e0)

SUMMARY: AddressSanitizer: use-after-poison /data/src/10.4/sql/log_event.cc:4433 in Query_log_event::Query_log_event(THD*, char const*, unsigned long, bool, bool, bool, int)

Shadow bytes around the buggy address:

  0x0c568000d120: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c568000d130: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c568000d140: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c568000d150: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c568000d160: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

=>0x0c568000d170: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7[f7]

  0x0c568000d180: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c568000d190: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c568000d1a0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c568000d1b0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c568000d1c0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

Shadow byte legend (one shadow byte represents 8 application bytes):

  Addressable:           00

  Partially addressable: 01 02 03 04 05 06 07 

  Heap left redzone:       fa

  Heap right redzone:      fb

  Freed heap region:       fd

  Stack left redzone:      f1

  Stack mid redzone:       f2

  Stack right redzone:     f3

  Stack partial redzone:   f4

  Stack after return:      f5

  Stack use after scope:   f8

  Global redzone:          f9

  Global init order:       f6

  Poisoned by user:        f7

  Container overflow:      fc

  Array cookie:            ac

  Intra object redzone:    bb

  ASan internal:           fe

  Left alloca redzone:     ca

  Right alloca redzone:    cb

==27246==ABORTING

----------SERVER LOG END-------------