[MDEV-18195] ASAN use-after-poison in my_strcasecmp_utf8 / Item::eq upon prepared statement with ORDER BY NAME_CONST - Jira

Details

Type: Bug
Status: Closed (View Workflow)
Priority: Major
Resolution: Fixed
Affects Version/s: 10.1(EOL), 10.2(EOL), 10.3(EOL), 10.4(EOL)
Fix Version/s: 10.4.2, 10.1.38, 10.2.22, 10.3.13
Component/s: Prepared Statements
Labels:
None

Description

PREPARE stmt FROM "SELECT 'x' ORDER BY NAME_CONST( 'f', 'foo' )";

EXECUTE stmt;

10.1 ASAN 1d56d875fe2
==17882==ERROR: AddressSanitizer: use-after-poison on address 0x62b0000239c8 at pc 0x558fa040b217 bp 0x7f6549739b10 sp 0x7f6549739b08
READ of size 1 at 0x62b0000239c8 thread T6
#0 0x558fa040b216 in my_strcasecmp_utf8 /data/src/10.1/strings/ctype-utf8.c:5224
#1 0x558f9f592aaa in Item::eq(Item const*, bool) const /data/src/10.1/sql/item.cc:1102
#2 0x558f9ef6a59d in find_item_in_list(Item, List<Item>&, unsigned int, find_item_error_report_type, enum_resolution_type*) /data/src/10.1/sql/sql_base.cc:7141
#3 0x558f9f0cc7b7 in find_order_in_list /data/src/10.1/sql/sql_select.cc:22273
#4 0x558f9f12a9de in setup_order(THD, Item, TABLE_LIST, List<Item>&, List<Item>&, st_order*) /data/src/10.1/sql/sql_select.cc:22401
#5 0x558f9f1353ea in setup_without_group /data/src/10.1/sql/sql_select.cc:663
#6 0x558f9f1353ea in JOIN::prepare(Item**, TABLE_LIST, unsigned int, Item, unsigned int, st_order, bool, st_order, Item, st_order, st_select_lex, st_select_lex_unit*) /data/src/10.1/sql/sql_select.cc:811
#7 0x558f9f1609c7 in mysql_select(THD, Item*, TABLE_LIST, unsigned int, List<Item>&, Item, unsigned int, st_order, st_order, Item, st_order, unsigned long long, select_result, st_select_lex_unit, st_select_lex) /data/src/10.1/sql/sql_select.cc:3477
#8 0x558f9f161343 in handle_select(THD, LEX, select_result*, unsigned long) /data/src/10.1/sql/sql_select.cc:388
#9 0x558f9f03043b in execute_sqlcom_select /data/src/10.1/sql/sql_parse.cc:5950
#10 0x558f9f04a64b in mysql_execute_command(THD*) /data/src/10.1/sql/sql_parse.cc:2995
#11 0x558f9f09ab6c in Prepared_statement::execute(String*, bool) /data/src/10.1/sql/sql_prepare.cc:4322
#12 0x558f9f09b71d in Prepared_statement::execute_loop(String, bool, unsigned char, unsigned char*) /data/src/10.1/sql/sql_prepare.cc:3954
#13 0x558f9f09cb94 in mysql_sql_stmt_execute(THD*) /data/src/10.1/sql/sql_prepare.cc:3070
#14 0x558f9f04a674 in mysql_execute_command(THD*) /data/src/10.1/sql/sql_parse.cc:3006
#15 0x558f9f062877 in mysql_parse(THD, char, unsigned int, Parser_state*) /data/src/10.1/sql/sql_parse.cc:7468
#16 0x558f9f06965b in dispatch_command(enum_server_command, THD, char, unsigned int) /data/src/10.1/sql/sql_parse.cc:1496
#17 0x558f9f06fde7 in do_command(THD*) /data/src/10.1/sql/sql_parse.cc:1124
#18 0x558f9f317c69 in do_handle_one_connection(THD*) /data/src/10.1/sql/sql_connect.cc:1330
#19 0x558f9f31817a in handle_one_connection /data/src/10.1/sql/sql_connect.cc:1242
#20 0x558f9fbe6cb4 in pfs_spawn_thread /data/src/10.1/storage/perfschema/pfs.cc:1861
#21 0x7f6555e70493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493)
#22 0x7f655422993e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe893e)

0x62b0000239c8 is located 1992 bytes inside of 24716-byte region [0x62b000023200,0x62b00002928c)
allocated by thread T6 here:
#0 0x7f65560da73f in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x5473f)
#1 0x558fa03b068d in sf_malloc /data/src/10.1/mysys/safemalloc.c:115
#2 0x558fa04a90da (/data/bld/10.1-asan/bin/mysqld+0x1d9b0da)

Thread T6 created by T0 here:
#0 0x7f65560a9bba in pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x23bba)
#1 0x558f9fbf250b in spawn_thread_v1 /data/src/10.1/storage/perfschema/pfs.cc:1911

SUMMARY: AddressSanitizer: use-after-poison /data/src/10.1/strings/ctype-utf8.c:5224 my_strcasecmp_utf8
Shadow bytes around the buggy address:
0x0c567fffc6e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffc6f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffc700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffc710: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c567fffc720: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c567fffc730: 00 00 00 00 00 00 00 00 00[f7]f7 f7 f7 f7 f7 f7
0x0c567fffc740: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c567fffc750: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c567fffc760: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c567fffc770: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c567fffc780: 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
Contiguous container OOB:fc
ASan internal: fe
==17882==ABORTING

10.4 30da40bb8c3
==18839==ERROR: AddressSanitizer: use-after-poison on address 0x62b000062b68 at pc 0x5569486415ec bp 0x7f93887f07a0 sp 0x7f93887f0798
READ of size 1 at 0x62b000062b68 thread T5
#0 0x5569486415eb in my_strcasecmp_utf8 /data/src/10.4/strings/ctype-utf8.c:5109
#1 0x55694745dd81 in lex_string_cmp /data/src/10.4/sql/lex_string.h:28
#2 0x556947466cd7 in Item::eq(Item const*, bool) const /data/src/10.4/sql/item.cc:1122
#3 0x556946b9dd33 in find_item_in_list(Item, List<Item>&, unsigned int, find_item_error_report_type, enum_resolution_type*, unsigned int) /data/src/10.4/sql/sql_base.cc:6616
#4 0x556946e1f271 in find_order_in_list /data/src/10.4/sql/sql_select.cc:23040
#5 0x556946e200bc in setup_order(THD, Bounds_checked_array<Item>, TABLE_LIST, List<Item>&, List<Item>&, st_order, bool) /data/src/10.4/sql/sql_select.cc:23180
#6 0x556946d7c2cd in setup_without_group /data/src/10.4/sql/sql_select.cc:666
#7 0x556946d80f29 in JOIN::prepare(TABLE_LIST, unsigned int, Item, unsigned int, st_order, bool, st_order, Item, st_order, st_select_lex, st_select_lex_unit) /data/src/10.4/sql/sql_select.cc:1113
#8 0x556946da05f0 in mysql_select(THD, TABLE_LIST, unsigned int, List<Item>&, Item, unsigned int, st_order, st_order, Item, st_order, unsigned long long, select_result, st_select_lex_unit, st_select_lex) /data/src/10.4/sql/sql_select.cc:4271
#9 0x556946d7a213 in handle_select(THD, LEX, select_result*, unsigned long) /data/src/10.4/sql/sql_select.cc:385
#10 0x556946cfc3b9 in execute_sqlcom_select /data/src/10.4/sql/sql_parse.cc:6567
#11 0x556946cea86e in mysql_execute_command(THD*) /data/src/10.4/sql/sql_parse.cc:3776
#12 0x556946d4d93e in Prepared_statement::execute(String*, bool) /data/src/10.4/sql/sql_prepare.cc:4790
#13 0x556946d490aa in Prepared_statement::execute_loop(String, bool, unsigned char, unsigned char*) /data/src/10.4/sql/sql_prepare.cc:4218
#14 0x556946d43add in mysql_sql_stmt_execute(THD*) /data/src/10.4/sql/sql_prepare.cc:3326
#15 0x556946cea8b3 in mysql_execute_command(THD*) /data/src/10.4/sql/sql_parse.cc:3792
#16 0x556946d04d8e in mysql_parse(THD, char, unsigned int, Parser_state*, bool, bool) /data/src/10.4/sql/sql_parse.cc:8104
#17 0x556946cdf2f4 in dispatch_command(enum_server_command, THD, char, unsigned int, bool, bool) /data/src/10.4/sql/sql_parse.cc:1851
#18 0x556946cdc37c in do_command(THD*) /data/src/10.4/sql/sql_parse.cc:1396
#19 0x5569470527e2 in do_handle_one_connection(CONNECT*) /data/src/10.4/sql/sql_connect.cc:1402
#20 0x5569470521ee in handle_one_connection /data/src/10.4/sql/sql_connect.cc:1308
#21 0x556947bb88c7 in pfs_spawn_thread /data/src/10.4/storage/perfschema/pfs.cc:1862
#22 0x7f9394c31493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493)
#23 0x7f939323293e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe893e)

0x62b000062b68 is located 2408 bytes inside of 24716-byte region [0x62b000062200,0x62b00006828c)
allocated by thread T5 here:
#0 0x7f9394e9b73f in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x5473f)
#1 0x556948563284 in sf_malloc /data/src/10.4/mysys/safemalloc.c:118
#2 0x556948533c01 in my_malloc /data/src/10.4/mysys/my_malloc.c:101
#3 0x556948512df7 in reset_root_defaults /data/src/10.4/mysys/my_alloc.c:151
#4 0x556946be85fb in THD::init_for_queries() /data/src/10.4/sql/sql_class.cc:1337
#5 0x556947051ba2 in prepare_new_connection_state(THD*) /data/src/10.4/sql/sql_connect.cc:1239
#6 0x556947052234 in thd_prepare_connection(THD*) /data/src/10.4/sql/sql_connect.cc:1323
#7 0x5569470527b8 in do_handle_one_connection(CONNECT*) /data/src/10.4/sql/sql_connect.cc:1393
#8 0x5569470521ee in handle_one_connection /data/src/10.4/sql/sql_connect.cc:1308
#9 0x556947bb88c7 in pfs_spawn_thread /data/src/10.4/storage/perfschema/pfs.cc:1862
#10 0x7f9394c31493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493)

Thread T5 created by T0 here:
#0 0x7f9394e6abba in pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x23bba)
#1 0x556947bb8e8f in spawn_thread_v1 /data/src/10.4/storage/perfschema/pfs.cc:1912
#2 0x556946a36ea6 in inline_mysql_thread_create /data/src/10.4/include/mysql/psi/mysql_thread.h:1268
#3 0x556946a4d0c4 in create_thread_to_handle_connection(CONNECT*) /data/src/10.4/sql/mysqld.cc:6436
#4 0x556946a4d7c9 in create_new_thread(CONNECT*) /data/src/10.4/sql/mysqld.cc:6506
#5 0x556946a4db59 in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /data/src/10.4/sql/mysqld.cc:6623
#6 0x556946a4e7a5 in handle_connections_sockets() /data/src/10.4/sql/mysqld.cc:6788
#7 0x556946a4c581 in mysqld_main(int, char**) /data/src/10.4/sql/mysqld.cc:6058
#8 0x556946a34d2f in main /data/src/10.4/sql/main.cc:25
#9 0x7f939316a2b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)

SUMMARY: AddressSanitizer: use-after-poison /data/src/10.4/strings/ctype-utf8.c:5109 my_strcasecmp_utf8
Shadow bytes around the buggy address:
0x0c5680004510: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c5680004520: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c5680004530: 00 00 00 00 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c5680004540: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c5680004550: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
=>0x0c5680004560: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7[f7]f7 f7
0x0c5680004570: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c5680004580: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c5680004590: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c56800045a0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7
0x0c56800045b0: 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
Contiguous container OOB:fc
ASan internal: fe
==18839==ABORTING

Not reproducible on 10.0.

Attachments

Activity

Ascending order - Click to sort in descending order

Alexander Barkov added a comment - 2019-01-15 05:02

When Item_name_const::fix_fields() is called from find_order_in_list(), execution goes through this code:

  if (is_autogenerated_name)

    set_name(thd, item_name->c_ptr(), (uint) item_name->length(),

             system_charset_info);

(gdb) p thd->mem_root->name

$22 = 0x12df557 "THD::main_mem_root"

thd->mem_root here points already to THD::main_mem_root rather than to Prepared_statement::main_mem_root, so the name string gets created on THD::main_mem_root which gets cleared in the end of dispatch_command() of the PREPARE statement.

Later, when EXECUTE is performed, Item_name_const::name points to an already freed memory.

Alexander Barkov added a comment - 2019-01-15 05:02 When Item_name_const::fix_fields() is called from find_order_in_list(), execution goes through this code: if (is_autogenerated_name) { set_name(thd, item_name->c_ptr(), (uint) item_name->length(), system_charset_info); } (gdb) p thd->mem_root->name $22 = 0x12df557 "THD::main_mem_root" thd->mem_root here points already to THD::main_mem_root rather than to Prepared_statement::main_mem_root , so the name string gets created on THD::main_mem_root which gets cleared in the end of dispatch_command() of the PREPARE statement. Later, when EXECUTE is performed, Item_name_const::name points to an already freed memory.

Alexander Barkov added a comment - 2019-01-15 08:16 - edited

Stack trace when Item::name gets set to a value allocated on a wrong memory root:

#0  Item::set_name (this=0x7ffe6c01dd60, thd=0x7ffe6c000b00,

    str=0x7ffe6c01dbe8 "f", length=1,

    cs=0x1f02580 <my_charset_utf8_general_ci>)

    at /home/bar/maria-git/server.10.4/sql/item.cc:1030

#1  0x0000000000aaf03c in Item_name_const::fix_fields (this=0x7ffe6c01dd60,

    thd=0x7ffe6c000b00, ref=0x7ffe6c01de18)

    at /home/bar/maria-git/server.10.4/sql/item.cc:2008

#2  0x000000000069bd83 in Item::fix_fields_if_needed (this=0x7ffe6c01dd60,

    thd=0x7ffe6c000b00, ref=0x7ffe6c01de18)

    at /home/bar/maria-git/server.10.4/sql/item.h:954

#3  0x000000000069bdb1 in Item::fix_fields_if_needed_for_scalar (

    this=0x7ffe6c01dd60, thd=0x7ffe6c000b00, ref=0x7ffe6c01de18)

    at /home/bar/maria-git/server.10.4/sql/item.h:958

#4  0x000000000081f7ad in Item::fix_fields_if_needed_for_order_by (

    this=0x7ffe6c01dd60, thd=0x7ffe6c000b00, ref=0x7ffe6c01de18)

    at /home/bar/maria-git/server.10.4/sql/item.h:966

#5  0x0000000000811d9b in find_order_in_list (thd=0x7ffe6c000b00,

    ref_pointer_array=..., tables=0x0, order=0x7ffe6c01de08, fields=...,

    all_fields=..., is_group_field=false, add_to_all_fields=true,

    from_window_spec=false)

    at /home/bar/maria-git/server.10.4/sql/sql_select.cc:23136

#6  0x0000000000811f29 in setup_order (thd=0x7ffe6c000b00,

    ref_pointer_array=..., tables=0x0, fields=..., all_fields=...,

    order=0x7ffe6c01de08, from_window_spec=false)

    at /home/bar/maria-git/server.10.4/sql/sql_select.cc:23180

#7  0x00000000007d53f3 in setup_without_group (thd=0x7ffe6c000b00,

    ref_pointer_array=..., tables=0x0, leaves=..., fields=..., all_fields=...,

    conds=0x7ffe6c0161f8, order=0x7ffe6c01de08, group=0x0, win_specs=...,

    win_funcs=..., hidden_group_fields=0x7ffe6c0160d7, reserved=0x7ffe6c01d9dc)

    at /home/bar/maria-git/server.10.4/sql/sql_select.cc:665

#8  0x00000000007d7607 in JOIN::prepare (this=0x7ffe6c015df0, tables_init=0x0,

    wild_num=0, conds_init=0x0, og_num=1, order_init=0x7ffe6c01de08,

    skip_order_by=false, group_init=0x0, having_init=0x0, proc_param_init=0x0,

    select_lex_arg=0x7ffe6c01d6f0, unit_arg=0x7ffe6c01bd88)

    at /home/bar/maria-git/server.10.4/sql/sql_select.cc:1107

#9  0x0000000000882639 in st_select_lex_unit::prepare_join (

    this=0x7ffe6c01bd88, thd_arg=0x7ffe6c000b00, sl=0x7ffe6c01d6f0,

    tmp_result=0x0, additional_options=0, is_union_select=false)

    at /home/bar/maria-git/server.10.4/sql/sql_union.cc:654

#10 0x0000000000883ab0 in st_select_lex_unit::prepare (this=0x7ffe6c01bd88,

    derived_arg=0x0, sel_result=0x0, additional_options=0)

    at /home/bar/maria-git/server.10.4/sql/sql_union.cc:977

#11 0x00000000007b9c7b in mysql_test_select (stmt=0x7ffe6c014ae0, tables=0x0)

    at /home/bar/maria-git/server.10.4/sql/sql_prepare.cc:1545

#12 0x00000000007bb6ae in check_prepared_statement (stmt=0x7ffe6c014ae0)

    at /home/bar/maria-git/server.10.4/sql/sql_prepare.cc:2336

#13 0x00000000007bf412 in Prepared_statement::prepare (this=0x7ffe6c014ae0,

    packet=0x7ffe6c015d08 "SELECT 'x' ORDER BY NAME_CONST( 'f', 'foo' )",

    packet_len=44) at /home/bar/maria-git/server.10.4/sql/sql_prepare.cc:4011

Alexander Barkov added a comment - 2019-01-15 08:16 - edited Stack trace when Item::name gets set to a value allocated on a wrong memory root: #0 Item::set_name (this=0x7ffe6c01dd60, thd=0x7ffe6c000b00, str=0x7ffe6c01dbe8 "f" , length=1, cs=0x1f02580 <my_charset_utf8_general_ci>) at /home/bar/maria-git/server.10.4/sql/item.cc:1030 #1 0x0000000000aaf03c in Item_name_const::fix_fields (this=0x7ffe6c01dd60, thd=0x7ffe6c000b00, ref=0x7ffe6c01de18) at /home/bar/maria-git/server.10.4/sql/item.cc:2008 #2 0x000000000069bd83 in Item::fix_fields_if_needed (this=0x7ffe6c01dd60, thd=0x7ffe6c000b00, ref=0x7ffe6c01de18) at /home/bar/maria-git/server.10.4/sql/item.h:954 #3 0x000000000069bdb1 in Item::fix_fields_if_needed_for_scalar ( this=0x7ffe6c01dd60, thd=0x7ffe6c000b00, ref=0x7ffe6c01de18) at /home/bar/maria-git/server.10.4/sql/item.h:958 #4 0x000000000081f7ad in Item::fix_fields_if_needed_for_order_by ( this=0x7ffe6c01dd60, thd=0x7ffe6c000b00, ref=0x7ffe6c01de18) at /home/bar/maria-git/server.10.4/sql/item.h:966 #5 0x0000000000811d9b in find_order_in_list (thd=0x7ffe6c000b00, ref_pointer_array=..., tables=0x0, order =0x7ffe6c01de08, fields=..., all_fields=..., is_group_field= false , add_to_all_fields= true , from_window_spec= false ) at /home/bar/maria-git/server.10.4/sql/sql_select.cc:23136 #6 0x0000000000811f29 in setup_order (thd=0x7ffe6c000b00, ref_pointer_array=..., tables=0x0, fields=..., all_fields=..., order =0x7ffe6c01de08, from_window_spec= false ) at /home/bar/maria-git/server.10.4/sql/sql_select.cc:23180 #7 0x00000000007d53f3 in setup_without_group (thd=0x7ffe6c000b00, ref_pointer_array=..., tables=0x0, leaves=..., fields=..., all_fields=..., conds=0x7ffe6c0161f8, order =0x7ffe6c01de08, group =0x0, win_specs=..., win_funcs=..., hidden_group_fields=0x7ffe6c0160d7, reserved=0x7ffe6c01d9dc) at /home/bar/maria-git/server.10.4/sql/sql_select.cc:665 #8 0x00000000007d7607 in JOIN :: prepare (this=0x7ffe6c015df0, tables_init=0x0, wild_num=0, conds_init=0x0, og_num=1, order_init=0x7ffe6c01de08, skip_order_by= false , group_init=0x0, having_init=0x0, proc_param_init=0x0, select_lex_arg=0x7ffe6c01d6f0, unit_arg=0x7ffe6c01bd88) at /home/bar/maria-git/server.10.4/sql/sql_select.cc:1107 #9 0x0000000000882639 in st_select_lex_unit::prepare_join ( this=0x7ffe6c01bd88, thd_arg=0x7ffe6c000b00, sl=0x7ffe6c01d6f0, tmp_result=0x0, additional_options=0, is_union_select= false ) at /home/bar/maria-git/server.10.4/sql/sql_union.cc:654 #10 0x0000000000883ab0 in st_select_lex_unit:: prepare (this=0x7ffe6c01bd88, derived_arg=0x0, sel_result=0x0, additional_options=0) at /home/bar/maria-git/server.10.4/sql/sql_union.cc:977 #11 0x00000000007b9c7b in mysql_test_select (stmt=0x7ffe6c014ae0, tables=0x0) at /home/bar/maria-git/server.10.4/sql/sql_prepare.cc:1545 #12 0x00000000007bb6ae in check_prepared_statement (stmt=0x7ffe6c014ae0) at /home/bar/maria-git/server.10.4/sql/sql_prepare.cc:2336 #13 0x00000000007bf412 in Prepared_statement:: prepare (this=0x7ffe6c014ae0, packet=0x7ffe6c015d08 "SELECT 'x' ORDER BY NAME_CONST( 'f', 'foo' )" , packet_len=44) at /home/bar/maria-git/server.10.4/sql/sql_prepare.cc:4011

Oleksandr Byelkin added a comment - 2019-01-21 16:26

OK to push!

Oleksandr Byelkin added a comment - 2019-01-21 16:26 OK to push!

MariaDB Server

ASAN use-after-poison in my_strcasecmp_utf8 / Item::eq upon prepared statement with ORDER BY NAME_CONST

Details

Description

Attachments

Activity

People

Dates

Git Integration