[MDEV-28098] incorrect key in "dup value" error after long unique - Jira

Details

Type: Bug
Status: Closed (View Workflow)
Priority: Blocker
Resolution: Fixed
Affects Version/s: 10.9.0, 10.4(EOL), 10.5, 10.6, 10.7(EOL), 10.8(EOL)
Fix Version/s: 10.4.25, 10.5.16, 10.6.8, 10.7.4
Component/s: Data Manipulation - Insert, Data Manipulation - Update
Labels:
None
Environment:
Linux jie-2 5.4.143-1-pve #1 SMP PVE 5.4.143-1 (Tue, 28 Sep 2021 09:10:37 +0200) x86_64 x86_64 x86_64 GNU/Linux

Description

PoC:

CREATE TABLE v0 ( v3 FLOAT PRIMARY KEY NULL , v2 TEXT UNIQUE NOT NULL , v1 INT UNIQUE ) ;

 CREATE TABLE v4 ( v6 INT UNIQUE UNIQUE PRIMARY KEY UNIQUE , v5 TEXT , VALUE INT NOT NULL ) ;

 INSERT INTO v0 VALUES ( -32768 , -128 , 58 ) , ( -1 , 44 , -128 ) ;

 INSERT INTO v4 VALUES ( 50 , 61 , -1 ) , ( -2147483648 , -128 , 0 ) ;

 UPDATE v0 AS v0 SET v2 = ( NOT ( ( v1 = 8 OR 'x' = -1 ) IS NULL ) ) , v3 = -128 ;

 UPDATE v0 AS ONE NATURAL JOIN v4 SET v1 = v2 , v5 = 0 ;

 UPDATE v4 NATURAL JOIN v0 VALUE SET v5 = v3 , v1 = 83 ;

 UPDATE v0 SET v2 = 'x' * 'x' , v1 = -1 WHERE v3 IN ( 16 , 36 , NULL , 0 ) ;

report (compiled with ASAN):

=================================================================

==9471==ERROR: AddressSanitizer: heap-use-after-free on address 0x6290000c3288 at pc 0x000002b12085 bp 0x7fe334a243c0 sp 0x7fe334a243b8

READ of size 1 at 0x6290000c3288 thread T16

    #0 0x2b12084 in my_mb_wc_latin1 /root/mariadb/strings/ctype-latin1.c:376:18

    #1 0x2bd45cb in my_convert_using_func /root/mariadb/strings/ctype.c:1161:18

    #2 0xb5b9b7 in err_conv(char*, unsigned int, char const*, unsigned int, charset_info_st const*) /root/mariadb/sql/sql_error.cc:931:10

    #3 0x1a06285 in ErrBuff::set_str(char const*, unsigned long, charset_info_st const*) const /root/mariadb/sql/sql_error.h:852:10

    #4 0x1a06285 in ErrConvString::lex_cstring() const /root/mariadb/sql/sql_error.h:890:12

    #5 0x1a06285 in field_unpack(String*, Field*, unsigned char const*, unsigned int, bool) /root/mariadb/sql/key.cc:396:20

    #6 0x1a06d36 in key_unpack(String*, TABLE*, st_key*) /root/mariadb/sql/key.cc:441:5

    #7 0x15cfdc3 in print_keydup_error(TABLE*, st_key*, char const*, unsigned long) /root/mariadb/sql/handler.cc:4246:5

    #8 0x15d2509 in print_keydup_error(TABLE*, st_key*, unsigned long) /root/mariadb/sql/handler.cc:4269:3

    #9 0x15d2509 in handler::print_error(int, unsigned long) /root/mariadb/sql/handler.cc:4345:9

    #10 0x100e249 in multi_update::send_data(List<Item>&) /root/mariadb/sql/sql_update.cc:2688:18

    #11 0xdb5094 in select_result_sink::send_data_with_check(List<Item>&, st_select_lex_unit*, unsigned long long) /root/mariadb/sql/sql_class.h:5612:12

    #12 0xdb5094 in end_send(JOIN*, st_join_table*, bool) /root/mariadb/sql/sql_select.cc:22331:9

    #13 0xe315ff in evaluate_join_record(JOIN*, st_join_table*, int) /root/mariadb/sql/sql_select.cc:21325:11

    #14 0xd4c13a in sub_select(JOIN*, st_join_table*, bool) /root/mariadb/sql/sql_select.cc:21095:9

    #15 0xe315ff in evaluate_join_record(JOIN*, st_join_table*, int) /root/mariadb/sql/sql_select.cc:21325:11

    #16 0xd4c13a in sub_select(JOIN*, st_join_table*, bool) /root/mariadb/sql/sql_select.cc:21095:9

    #17 0xdc6797 in do_select(JOIN*, Procedure*) /root/mariadb/sql/sql_select.cc:20640:14

    #18 0xdc6797 in JOIN::exec_inner() /root/mariadb/sql/sql_select.cc:4749:50

    #19 0xdc344c in JOIN::exec() /root/mariadb/sql/sql_select.cc:4527:3

    #20 0xd4e4e8 in mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /root/mariadb/sql/sql_select.cc:5007:9

    #21 0x1006042 in mysql_multi_update(THD*, TABLE_LIST*, List<Item>*, List<Item>*, Item*, unsigned long long, enum_duplicates, bool, st_select_lex_unit*, st_select_lex*, multi_update**) /root/mariadb/sql/sql_update.cc:1968:8

    #22 0xc682e9 in mysql_execute_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:4486:12

    #23 0xc4a67e in mysql_parse(THD*, char*, unsigned int, Parser_state*) /root/mariadb/sql/sql_parse.cc:8027:18

    #24 0xc41ba9 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /root/mariadb/sql/sql_parse.cc:1894:7

    #25 0xc4b74b in do_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:1402:17

    #26 0x111f9f2 in do_handle_one_connection(CONNECT*, bool) /root/mariadb/sql/sql_connect.cc:1418:11

    #27 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5

    #28 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3

    #29 0x7fe35a9ff608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8

    #30 0x7fe35a715162 in clone /build/glibc-sMfBJT/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95

0x6290000c3288 is located 136 bytes inside of 16512-byte region [0x6290000c3200,0x6290000c7280)

freed by thread T16 here:

    #0 0x80f732 in free (/usr/local/mysql/bin/mariadbd+0x80f732)

    #1 0x243e1b8 in mem_heap_free(mem_block_info_t*) /root/mariadb/storage/innobase/include/mem0mem.inl:419:3

    #2 0x243e1b8 in row_mysql_prebuilt_free_blob_heap(row_prebuilt_t*) /root/mariadb/storage/innobase/row/row0mysql.cc:101:2

    #3 0x24b554c in row_sel_store_mysql_rec(unsigned char*, row_prebuilt_t*, unsigned char const*, dtuple_t const*, bool, dict_index_t const*, unsigned short const*) /root/mariadb/storage/innobase/row/row0sel.cc:3109:3

    #4 0x24afa37 in row_search_mvcc(unsigned char*, page_cur_mode_t, row_prebuilt_t*, unsigned long, unsigned long) /root/mariadb/storage/innobase/row/row0sel.cc:5656:9

    #5 0x21739c3 in ha_innobase::index_read(unsigned char*, unsigned char const*, unsigned int, ha_rkey_function) /root/mariadb/storage/innobase/handler/ha_innodb.cc:8970:5

    #6 0x15c539a in handler::ha_rnd_pos(unsigned char*, unsigned char*) /root/mariadb/sql/handler.cc:3425:3

    #7 0x1002a33 in prepare_record_for_error_message(int, TABLE*) /root/mariadb/sql/sql_update.cc:304:23

    #8 0x100e1fd in multi_update::send_data(List<Item>&) /root/mariadb/sql/sql_update.cc:2687:5

    #9 0xdb5094 in select_result_sink::send_data_with_check(List<Item>&, st_select_lex_unit*, unsigned long long) /root/mariadb/sql/sql_class.h:5612:12

    #10 0xdb5094 in end_send(JOIN*, st_join_table*, bool) /root/mariadb/sql/sql_select.cc:22331:9

    #11 0xe315ff in evaluate_join_record(JOIN*, st_join_table*, int) /root/mariadb/sql/sql_select.cc:21325:11

    #12 0xd4c13a in sub_select(JOIN*, st_join_table*, bool) /root/mariadb/sql/sql_select.cc:21095:9

    #13 0xe315ff in evaluate_join_record(JOIN*, st_join_table*, int) /root/mariadb/sql/sql_select.cc:21325:11

    #14 0xd4c13a in sub_select(JOIN*, st_join_table*, bool) /root/mariadb/sql/sql_select.cc:21095:9

    #15 0xdc6797 in do_select(JOIN*, Procedure*) /root/mariadb/sql/sql_select.cc:20640:14

    #16 0xdc6797 in JOIN::exec_inner() /root/mariadb/sql/sql_select.cc:4749:50

    #17 0xdc344c in JOIN::exec() /root/mariadb/sql/sql_select.cc:4527:3

    #18 0xd4e4e8 in mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /root/mariadb/sql/sql_select.cc:5007:9

    #19 0x1006042 in mysql_multi_update(THD*, TABLE_LIST*, List<Item>*, List<Item>*, Item*, unsigned long long, enum_duplicates, bool, st_select_lex_unit*, st_select_lex*, multi_update**) /root/mariadb/sql/sql_update.cc:1968:8

    #20 0xc682e9 in mysql_execute_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:4486:12

    #21 0xc4a67e in mysql_parse(THD*, char*, unsigned int, Parser_state*) /root/mariadb/sql/sql_parse.cc:8027:18

    #22 0xc41ba9 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /root/mariadb/sql/sql_parse.cc:1894:7

    #23 0xc4b74b in do_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:1402:17

    #24 0x111f9f2 in do_handle_one_connection(CONNECT*, bool) /root/mariadb/sql/sql_connect.cc:1418:11

    #25 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5

    #26 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3

    #27 0x7fe35a9ff608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8

previously allocated by thread T16 here:

    #0 0x80f99d in malloc (/usr/local/mysql/bin/mariadbd+0x80f99d)

    #1 0x215c51e in ut_allocator<unsigned char, true>::allocate(unsigned long, unsigned char const*, unsigned int, bool, bool) /root/mariadb/storage/innobase/include/ut0new.h:375:11

    #2 0x2301754 in mem_heap_create_block_func(mem_block_info_t*, unsigned long, unsigned long) /root/mariadb/storage/innobase/mem/mem0mem.cc:277:37

    #3 0x24be2fc in mem_heap_create_func(unsigned long, unsigned long) /root/mariadb/storage/innobase/include/mem0mem.inl:377:10

    #4 0x24be2fc in row_sel_store_mysql_field(unsigned char*, row_prebuilt_t*, unsigned char const*, dict_index_t const*, unsigned short const*, unsigned long, mysql_row_templ_t const*) /root/mariadb/storage/innobase/row/row0sel.cc:3050:27

    #5 0x24b4ea9 in row_sel_store_mysql_rec(unsigned char*, row_prebuilt_t*, unsigned char const*, dtuple_t const*, bool, dict_index_t const*, unsigned short const*) /root/mariadb/storage/innobase/row/row0sel.cc:3196:8

    #6 0x24afa37 in row_search_mvcc(unsigned char*, page_cur_mode_t, row_prebuilt_t*, unsigned long, unsigned long) /root/mariadb/storage/innobase/row/row0sel.cc:5656:9

    #7 0x21739c3 in ha_innobase::index_read(unsigned char*, unsigned char const*, unsigned int, ha_rkey_function) /root/mariadb/storage/innobase/handler/ha_innodb.cc:8970:5

    #8 0x2174d99 in ha_innobase::index_first(unsigned char*) /root/mariadb/storage/innobase/handler/ha_innodb.cc:9339:14

    #9 0x2174d99 in ha_innobase::rnd_next(unsigned char*) /root/mariadb/storage/innobase/handler/ha_innodb.cc:9432:11

    #10 0x15c44c3 in handler::ha_rnd_next(unsigned char*) /root/mariadb/sql/handler.cc:3393:5

    #11 0x930064 in rr_sequential(READ_RECORD*) /root/mariadb/sql/records.cc:519:35

    #12 0xd4c04d in sub_select(JOIN*, st_join_table*, bool) /root/mariadb/sql/sql_select.cc:21092:12

    #13 0xdc6797 in do_select(JOIN*, Procedure*) /root/mariadb/sql/sql_select.cc:20640:14

    #14 0xdc6797 in JOIN::exec_inner() /root/mariadb/sql/sql_select.cc:4749:50

    #15 0xdc344c in JOIN::exec() /root/mariadb/sql/sql_select.cc:4527:3

    #16 0xd4e4e8 in mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /root/mariadb/sql/sql_select.cc:5007:9

    #17 0x1006042 in mysql_multi_update(THD*, TABLE_LIST*, List<Item>*, List<Item>*, Item*, unsigned long long, enum_duplicates, bool, st_select_lex_unit*, st_select_lex*, multi_update**) /root/mariadb/sql/sql_update.cc:1968:8

    #18 0xc682e9 in mysql_execute_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:4486:12

    #19 0xc4a67e in mysql_parse(THD*, char*, unsigned int, Parser_state*) /root/mariadb/sql/sql_parse.cc:8027:18

    #20 0xc41ba9 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /root/mariadb/sql/sql_parse.cc:1894:7

    #21 0xc4b74b in do_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:1402:17

    #22 0x111f9f2 in do_handle_one_connection(CONNECT*, bool) /root/mariadb/sql/sql_connect.cc:1418:11

    #23 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5

    #24 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3

    #25 0x7fe35a9ff608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8

Thread T16 created by T0 here:

    #0 0x7f9cfc in pthread_create (/usr/local/mysql/bin/mariadbd+0x7f9cfc)

    #1 0x1f3fd39 in my_thread_create(unsigned long*, pthread_attr_t const*, void* (*)(void*), void*) /root/mariadb/storage/perfschema/my_thread.h:52:10

    #2 0x1f3fd39 in pfs_spawn_thread_v1 /root/mariadb/storage/perfschema/pfs.cc:2252:15

    #3 0x85cef4 in inline_mysql_thread_create(unsigned int, unsigned long*, pthread_attr_t const*, void* (*)(void*), void*) /root/mariadb/include/mysql/psi/mysql_thread.h:1139:11

    #4 0x85cef4 in create_thread_to_handle_connection(CONNECT*) /root/mariadb/sql/mysqld.cc:5975:19

    #5 0x85e72a in create_new_thread(CONNECT*) /root/mariadb/sql/mysqld.cc:6034:3

    #6 0x85e72a in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /root/mariadb/sql/mysqld.cc:6096:5

    #7 0x85a34c in handle_connections_sockets() /root/mariadb/sql/mysqld.cc:6220:9

    #8 0x84e9ef in mysqld_main(int, char**) /root/mariadb/sql/mysqld.cc:5870:3

    #9 0x7fe35a61a0b2 in __libc_start_main /build/glibc-sMfBJT/glibc-2.31/csu/../csu/libc-start.c:308:16

SUMMARY: AddressSanitizer: heap-use-after-free /root/mariadb/strings/ctype-latin1.c:376:18 in my_mb_wc_latin1

Shadow bytes around the buggy address:

  0x0c5280010600: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c5280010610: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c5280010620: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c5280010630: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c5280010640: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

=>0x0c5280010650: fd[fd]fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c5280010660: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c5280010670: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c5280010680: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c5280010690: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c52800106a0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

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

  Freed heap region:       fd

  Stack left redzone:      f1

  Stack mid redzone:       f2

  Stack right redzone:     f3

  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

  Shadow gap:              cc

==9471==ABORTING

Attachments

Issue Links

relates to

MDEV-371 Unique indexes for blobs

Closed

MDEV-25813 ASAN errors in err_conv / field_unpack upon multi-UPDATE causing ER_DUP_ENTRY

Confirmed

links to

CVE-2022-27457

Activity

Alice Sherepa added a comment - 2022-03-17 14:34

Thank you for the report!
It is reproducible on 10.4-10.9, with InnoDB.
no visible effect on non-debug build.

--source include/have_innodb.inc

CREATE TABLE t1 (v3 int PRIMARY KEY, v2 text(100) UNIQUE NOT NULL, v1 INT UNIQUE) engine=innodb;

INSERT INTO t1 VALUES ( -32768 , -128 , 58 ) , ( -1 , 44 , -128 );

CREATE TABLE t2 (v6 INT PRIMARY KEY, v5 TEXT, a INT NOT NULL) engine=innodb;

INSERT INTO t2 VALUES ( 50 , 61 , -1 ) , ( -2147483648 , -128 , 0 );

--error 1062

UPDATE t1 SET v2 = ( NOT ( ( v1 = 8 OR 'x' = -1 ) IS NULL ) ) , v3 = -128;

--error 1062

UPDATE t1 NATURAL JOIN t2 SET v1 = v2 , v5 = 0;

--error 1062

UPDATE t2 NATURAL JOIN t1 a SET v5 = v3 , v1 = 83;

UPDATE t1 SET v2 = 'x' * 'x' , v1 = -1 WHERE v3 IN (16,36,NULL,0);

10.4 069139a549a62f26d566c1ae
Version: '10.4.25-MariaDB-debug-log'
=================================================================
==501721==ERROR: AddressSanitizer: heap-use-after-free on address 0x6290002da288 at pc 0x558133133d42 bp 0x7fc5f3f24760 sp 0x7fc5f3f24750
READ of size 4 at 0x6290002da288 thread T27
#0 0x558133133d41 in my_convert /10.4/src/strings/ctype.c:1109
#1 0x55813111549e in copy_and_convert(char, unsigned long, charset_info_st const, char const, unsigned long, charset_info_st const, unsigned int*) /10.4/src/sql/sql_string.h:44
#2 0x55813130bc36 in err_conv(char, unsigned int, char const, unsigned int, charset_info_st const*) /10.4/src/sql/sql_error.cc:897
#3 0x55813113a720 in ErrBuff::set_str(char const, unsigned long, charset_info_st const) const /10.4/src/sql/sql_error.h:846
#4 0x55813113aabc in ErrConvString::ptr() const /10.4/src/sql/sql_error.h:878
#5 0x558131e51961 in field_unpack(String, Field, unsigned char const*, unsigned int, bool) /10.4/src/sql/key.cc:397
#6 0x558131e52055 in key_unpack(String, TABLE, st_key*) /10.4/src/sql/key.cc:442
#7 0x558131b95a75 in print_keydup_error(TABLE, st_key, char const*, unsigned long) /10.4/src/sql/handler.cc:3726
#8 0x558131b95d30 in print_keydup_error(TABLE, st_key, unsigned long) /10.4/src/sql/handler.cc:3749
#9 0x558131b96301 in handler::print_error(int, unsigned long) /10.4/src/sql/handler.cc:3825
#10 0x5581316b664a in multi_update::send_data(List<Item>&) /10.4/src/sql/sql_update.cc:2682
#11 0x558131525a7a in end_send /10.4/src/sql/sql_select.cc:21823
#12 0x55813151de36 in evaluate_join_record /10.4/src/sql/sql_select.cc:20855
#13 0x55813151c76b in sub_select(JOIN, st_join_table, bool) /10.4/src/sql/sql_select.cc:20628
#14 0x55813151de36 in evaluate_join_record /10.4/src/sql/sql_select.cc:20855
#15 0x55813151c76b in sub_select(JOIN, st_join_table, bool) /10.4/src/sql/sql_select.cc:20628
#16 0x55813151a71b in do_select /10.4/src/sql/sql_select.cc:20164
#17 0x5581314a93ad in JOIN::exec_inner() /10.4/src/sql/sql_select.cc:4542
#18 0x5581314a69d9 in JOIN::exec() /10.4/src/sql/sql_select.cc:4324
#19 0x5581314aabb9 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) /10.4/src/sql/sql_select.cc:4763
#20 0x5581316aecfc in mysql_multi_update(THD, TABLE_LIST, List<Item>, List<Item>, Item, unsigned long long, enum_duplicates, bool, st_select_lex_unit, st_select_lex, multi_update*) /10.4/src/sql/sql_update.cc:1962
#21 0x5581313db034 in mysql_execute_command(THD*) /10.4/src/sql/sql_parse.cc:4515
#22 0x5581313f374c in mysql_parse(THD, char, unsigned int, Parser_state*, bool, bool) /10.4/src/sql/sql_parse.cc:7995
#23 0x5581313c9ed3 in dispatch_command(enum_server_command, THD, char, unsigned int, bool, bool) /10.4/src/sql/sql_parse.cc:1857
#24 0x5581313c6950 in do_command(THD*) /10.4/src/sql/sql_parse.cc:1373
#25 0x5581317c230c in do_handle_one_connection(CONNECT*) /10.4/src/sql/sql_connect.cc:1420
#26 0x5581317c1a65 in handle_one_connection /10.4/src/sql/sql_connect.cc:1316
#27 0x5581324c309c in pfs_spawn_thread /10.4/src/storage/perfschema/pfs.cc:1869
#28 0x7fc60aaf8608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477
#29 0x7fc60a6c9162 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x11f162)

0x6290002da288 is located 136 bytes inside of 16512-byte region [0x6290002da200,0x6290002de280)
freed by thread T27 here:
#0 0x7fc60b08340f in __interceptor_free ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:122
#1 0x5581327c1eec in mem_heap_block_free(mem_block_info_t, mem_block_info_t) /10.4/src/storage/innobase/mem/mem0mem.cc:416
#2 0x558132933e11 in mem_heap_free /10.4/src/storage/innobase/include/mem0mem.inl:417
#3 0x55813293b3ea in row_mysql_prebuilt_free_blob_heap(row_prebuilt_t*) /10.4/src/storage/innobase/row/row0mysql.cc:143
#4 0x5581329c8e09 in row_sel_store_mysql_rec /10.4/src/storage/innobase/row/row0sel.cc:3107
#5 0x5581329d926b in row_search_mvcc(unsigned char, page_cur_mode_t, row_prebuilt_t, unsigned long, unsigned long) /10.4/src/storage/innobase/row/row0sel.cc:5594
#6 0x5581325d4d17 in ha_innobase::index_read(unsigned char, unsigned char const, unsigned int, ha_rkey_function) /10.4/src/storage/innobase/handler/ha_innodb.cc:9348
#7 0x5581325d89b1 in ha_innobase::rnd_pos(unsigned char, unsigned char) /10.4/src/storage/innobase/handler/ha_innodb.cc:9858
#8 0x558131b8d87f in handler::ha_rnd_pos(unsigned char, unsigned char) /10.4/src/sql/handler.cc:2912
#9 0x5581316a0a22 in prepare_record_for_error_message /10.4/src/sql/sql_update.cc:305
#10 0x5581316b65ab in multi_update::send_data(List<Item>&) /10.4/src/sql/sql_update.cc:2681
#11 0x558131525a7a in end_send /10.4/src/sql/sql_select.cc:21823
#12 0x55813151de36 in evaluate_join_record /10.4/src/sql/sql_select.cc:20855
#13 0x55813151c76b in sub_select(JOIN, st_join_table, bool) /10.4/src/sql/sql_select.cc:20628
#14 0x55813151de36 in evaluate_join_record /10.4/src/sql/sql_select.cc:20855
#15 0x55813151c76b in sub_select(JOIN, st_join_table, bool) /10.4/src/sql/sql_select.cc:20628
#16 0x55813151a71b in do_select /10.4/src/sql/sql_select.cc:20164
#17 0x5581314a93ad in JOIN::exec_inner() /10.4/src/sql/sql_select.cc:4542
#18 0x5581314a69d9 in JOIN::exec() /10.4/src/sql/sql_select.cc:4324
#19 0x5581314aabb9 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) /10.4/src/sql/sql_select.cc:4763
#20 0x5581316aecfc in mysql_multi_update(THD, TABLE_LIST, List<Item>, List<Item>, Item, unsigned long long, enum_duplicates, bool, st_select_lex_unit, st_select_lex, multi_update*) /10.4/src/sql/sql_update.cc:1962
#21 0x5581313db034 in mysql_execute_command(THD*) /10.4/src/sql/sql_parse.cc:4515
#22 0x5581313f374c in mysql_parse(THD, char, unsigned int, Parser_state*, bool, bool) /10.4/src/sql/sql_parse.cc:7995
#23 0x5581313c9ed3 in dispatch_command(enum_server_command, THD, char, unsigned int, bool, bool) /10.4/src/sql/sql_parse.cc:1857
#24 0x5581313c6950 in do_command(THD*) /10.4/src/sql/sql_parse.cc:1373
#25 0x5581317c230c in do_handle_one_connection(CONNECT*) /10.4/src/sql/sql_connect.cc:1420
#26 0x5581317c1a65 in handle_one_connection /10.4/src/sql/sql_connect.cc:1316
#27 0x5581324c309c in pfs_spawn_thread /10.4/src/storage/perfschema/pfs.cc:1869
#28 0x7fc60aaf8608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477

previously allocated by thread T27 here:
#0 0x7fc60b083808 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:144
#1 0x5581327c12e9 in mem_heap_create_block_func(mem_block_info_t, unsigned long, char const, unsigned int, unsigned long) /10.4/src/storage/innobase/mem/mem0mem.cc:277
#2 0x5581329b1109 in mem_heap_create_func /10.4/src/storage/innobase/include/mem0mem.inl:375
#3 0x5581329c86ca in row_sel_store_mysql_field /10.4/src/storage/innobase/row/row0sel.cc:3048
#4 0x5581329c97ef in row_sel_store_mysql_rec /10.4/src/storage/innobase/row/row0sel.cc:3179
#5 0x5581329d926b in row_search_mvcc(unsigned char, page_cur_mode_t, row_prebuilt_t, unsigned long, unsigned long) /10.4/src/storage/innobase/row/row0sel.cc:5594
#6 0x5581325d4d17 in ha_innobase::index_read(unsigned char, unsigned char const, unsigned int, ha_rkey_function) /10.4/src/storage/innobase/handler/ha_innodb.cc:9348
#7 0x5581325d806d in ha_innobase::index_first(unsigned char*) /10.4/src/storage/innobase/handler/ha_innodb.cc:9730
#8 0x5581325d85fd in ha_innobase::rnd_next(unsigned char*) /10.4/src/storage/innobase/handler/ha_innodb.cc:9823
#9 0x558131b8cde7 in handler::ha_rnd_next(unsigned char*) /10.4/src/sql/handler.cc:2880
#10 0x558131fbb4fe in rr_sequential(READ_RECORD*) /10.4/src/sql/records.cc:485
#11 0x558131222c13 in READ_RECORD::read_record() /10.4/src/sql/records.h:70
#12 0x558131523390 in join_init_read_record(st_join_table*) /10.4/src/sql/sql_select.cc:21576
#13 0x55813151c5af in sub_select(JOIN, st_join_table, bool) /10.4/src/sql/sql_select.cc:20625
#14 0x55813151a71b in do_select /10.4/src/sql/sql_select.cc:20164
#15 0x5581314a93ad in JOIN::exec_inner() /10.4/src/sql/sql_select.cc:4542
#16 0x5581314a69d9 in JOIN::exec() /10.4/src/sql/sql_select.cc:4324
#17 0x5581314aabb9 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) /10.4/src/sql/sql_select.cc:4763
#18 0x5581316aecfc in mysql_multi_update(THD, TABLE_LIST, List<Item>, List<Item>, Item, unsigned long long, enum_duplicates, bool, st_select_lex_unit, st_select_lex, multi_update*) /10.4/src/sql/sql_update.cc:1962
#19 0x5581313db034 in mysql_execute_command(THD*) /10.4/src/sql/sql_parse.cc:4515
#20 0x5581313f374c in mysql_parse(THD, char, unsigned int, Parser_state*, bool, bool) /10.4/src/sql/sql_parse.cc:7995
#21 0x5581313c9ed3 in dispatch_command(enum_server_command, THD, char, unsigned int, bool, bool) /10.4/src/sql/sql_parse.cc:1857
#22 0x5581313c6950 in do_command(THD*) /10.4/src/sql/sql_parse.cc:1373
#23 0x5581317c230c in do_handle_one_connection(CONNECT*) /10.4/src/sql/sql_connect.cc:1420
#24 0x5581317c1a65 in handle_one_connection /10.4/src/sql/sql_connect.cc:1316
#25 0x5581324c309c in pfs_spawn_thread /10.4/src/storage/perfschema/pfs.cc:1869
#26 0x7fc60aaf8608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477

Thread T27 created by T0 here:
#0 0x7fc60afb0815 in __interceptor_pthread_create ../../../../src/libsanitizer/asan/asan_interceptors.cc:208
#1 0x5581324c348d in spawn_thread_v1 /10.4/src/storage/perfschema/pfs.cc:1919
#2 0x5581310cbb6f in inline_mysql_thread_create /10.4/src/include/mysql/psi/mysql_thread.h:1275
#3 0x5581310e3a79 in create_thread_to_handle_connection(CONNECT*) /10.4/src/sql/mysqld.cc:6249
#4 0x5581310e4214 in create_new_thread(CONNECT*) /10.4/src/sql/mysqld.cc:6319
#5 0x5581310e46fa in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /10.4/src/sql/mysqld.cc:6417
#6 0x5581310e55b6 in handle_connections_sockets() /10.4/src/sql/mysqld.cc:6575
#7 0x5581310e317e in mysqld_main(int, char**) /10.4/src/sql/mysqld.cc:5907
#8 0x5581310c9dbc in main /10.4/src/sql/main.cc:25
#9 0x7fc60a5ce0b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x240b2)

SUMMARY: AddressSanitizer: heap-use-after-free /10.4/src/strings/ctype.c:1109 in my_convert
Shadow bytes around the buggy address:
0x0c5280053400: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5280053410: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5280053420: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5280053430: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c5280053440: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x0c5280053450: fd[fd]fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5280053460: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5280053470: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5280053480: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c5280053490: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c52800534a0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
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
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
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
Shadow gap: cc
==501721==ABORTING
----------SERVER LOG END-------------

Alice Sherepa added a comment - 2022-03-17 14:34 Thank you for the report! It is reproducible on 10.4-10.9, with InnoDB. no visible effect on non-debug build. --source include/have_innodb.inc CREATE TABLE t1 (v3 int PRIMARY KEY , v2 text(100) UNIQUE NOT NULL , v1 INT UNIQUE ) engine=innodb; INSERT INTO t1 VALUES ( -32768 , -128 , 58 ) , ( -1 , 44 , -128 ); CREATE TABLE t2 (v6 INT PRIMARY KEY , v5 TEXT, a INT NOT NULL ) engine=innodb; INSERT INTO t2 VALUES ( 50 , 61 , -1 ) , ( -2147483648 , -128 , 0 ); --error 1062 UPDATE t1 SET v2 = ( NOT ( ( v1 = 8 OR 'x' = -1 ) IS NULL ) ) , v3 = -128; --error 1062 UPDATE t1 NATURAL JOIN t2 SET v1 = v2 , v5 = 0; --error 1062 UPDATE t2 NATURAL JOIN t1 a SET v5 = v3 , v1 = 83; UPDATE t1 SET v2 = 'x' * 'x' , v1 = -1 WHERE v3 IN (16,36, NULL ,0); 10.4 069139a549a62f26d566c1ae Version: '10.4.25-MariaDB-debug-log' ================================================================= ==501721==ERROR: AddressSanitizer: heap-use-after-free on address 0x6290002da288 at pc 0x558133133d42 bp 0x7fc5f3f24760 sp 0x7fc5f3f24750 READ of size 4 at 0x6290002da288 thread T27 #0 0x558133133d41 in my_convert /10.4/src/strings/ctype.c:1109 #1 0x55813111549e in copy_and_convert(char*, unsigned long, charset_info_st const*, char const*, unsigned long, charset_info_st const*, unsigned int*) /10.4/src/sql/sql_string.h:44 #2 0x55813130bc36 in err_conv(char*, unsigned int, char const*, unsigned int, charset_info_st const*) /10.4/src/sql/sql_error.cc:897 #3 0x55813113a720 in ErrBuff::set_str(char const*, unsigned long, charset_info_st const*) const /10.4/src/sql/sql_error.h:846 #4 0x55813113aabc in ErrConvString::ptr() const /10.4/src/sql/sql_error.h:878 #5 0x558131e51961 in field_unpack(String*, Field*, unsigned char const*, unsigned int, bool) /10.4/src/sql/key.cc:397 #6 0x558131e52055 in key_unpack(String*, TABLE*, st_key*) /10.4/src/sql/key.cc:442 #7 0x558131b95a75 in print_keydup_error(TABLE*, st_key*, char const*, unsigned long) /10.4/src/sql/handler.cc:3726 #8 0x558131b95d30 in print_keydup_error(TABLE*, st_key*, unsigned long) /10.4/src/sql/handler.cc:3749 #9 0x558131b96301 in handler::print_error(int, unsigned long) /10.4/src/sql/handler.cc:3825 #10 0x5581316b664a in multi_update::send_data(List<Item>&) /10.4/src/sql/sql_update.cc:2682 #11 0x558131525a7a in end_send /10.4/src/sql/sql_select.cc:21823 #12 0x55813151de36 in evaluate_join_record /10.4/src/sql/sql_select.cc:20855 #13 0x55813151c76b in sub_select(JOIN*, st_join_table*, bool) /10.4/src/sql/sql_select.cc:20628 #14 0x55813151de36 in evaluate_join_record /10.4/src/sql/sql_select.cc:20855 #15 0x55813151c76b in sub_select(JOIN*, st_join_table*, bool) /10.4/src/sql/sql_select.cc:20628 #16 0x55813151a71b in do_select /10.4/src/sql/sql_select.cc:20164 #17 0x5581314a93ad in JOIN::exec_inner() /10.4/src/sql/sql_select.cc:4542 #18 0x5581314a69d9 in JOIN::exec() /10.4/src/sql/sql_select.cc:4324 #19 0x5581314aabb9 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*) /10.4/src/sql/sql_select.cc:4763 #20 0x5581316aecfc in mysql_multi_update(THD*, TABLE_LIST*, List<Item>*, List<Item>*, Item*, unsigned long long, enum_duplicates, bool, st_select_lex_unit*, st_select_lex*, multi_update**) /10.4/src/sql/sql_update.cc:1962 #21 0x5581313db034 in mysql_execute_command(THD*) /10.4/src/sql/sql_parse.cc:4515 #22 0x5581313f374c in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /10.4/src/sql/sql_parse.cc:7995 #23 0x5581313c9ed3 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /10.4/src/sql/sql_parse.cc:1857 #24 0x5581313c6950 in do_command(THD*) /10.4/src/sql/sql_parse.cc:1373 #25 0x5581317c230c in do_handle_one_connection(CONNECT*) /10.4/src/sql/sql_connect.cc:1420 #26 0x5581317c1a65 in handle_one_connection /10.4/src/sql/sql_connect.cc:1316 #27 0x5581324c309c in pfs_spawn_thread /10.4/src/storage/perfschema/pfs.cc:1869 #28 0x7fc60aaf8608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477 #29 0x7fc60a6c9162 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x11f162) 0x6290002da288 is located 136 bytes inside of 16512-byte region [0x6290002da200,0x6290002de280) freed by thread T27 here: #0 0x7fc60b08340f in __interceptor_free ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:122 #1 0x5581327c1eec in mem_heap_block_free(mem_block_info_t*, mem_block_info_t*) /10.4/src/storage/innobase/mem/mem0mem.cc:416 #2 0x558132933e11 in mem_heap_free /10.4/src/storage/innobase/include/mem0mem.inl:417 #3 0x55813293b3ea in row_mysql_prebuilt_free_blob_heap(row_prebuilt_t*) /10.4/src/storage/innobase/row/row0mysql.cc:143 #4 0x5581329c8e09 in row_sel_store_mysql_rec /10.4/src/storage/innobase/row/row0sel.cc:3107 #5 0x5581329d926b in row_search_mvcc(unsigned char*, page_cur_mode_t, row_prebuilt_t*, unsigned long, unsigned long) /10.4/src/storage/innobase/row/row0sel.cc:5594 #6 0x5581325d4d17 in ha_innobase::index_read(unsigned char*, unsigned char const*, unsigned int, ha_rkey_function) /10.4/src/storage/innobase/handler/ha_innodb.cc:9348 #7 0x5581325d89b1 in ha_innobase::rnd_pos(unsigned char*, unsigned char*) /10.4/src/storage/innobase/handler/ha_innodb.cc:9858 #8 0x558131b8d87f in handler::ha_rnd_pos(unsigned char*, unsigned char*) /10.4/src/sql/handler.cc:2912 #9 0x5581316a0a22 in prepare_record_for_error_message /10.4/src/sql/sql_update.cc:305 #10 0x5581316b65ab in multi_update::send_data(List<Item>&) /10.4/src/sql/sql_update.cc:2681 #11 0x558131525a7a in end_send /10.4/src/sql/sql_select.cc:21823 #12 0x55813151de36 in evaluate_join_record /10.4/src/sql/sql_select.cc:20855 #13 0x55813151c76b in sub_select(JOIN*, st_join_table*, bool) /10.4/src/sql/sql_select.cc:20628 #14 0x55813151de36 in evaluate_join_record /10.4/src/sql/sql_select.cc:20855 #15 0x55813151c76b in sub_select(JOIN*, st_join_table*, bool) /10.4/src/sql/sql_select.cc:20628 #16 0x55813151a71b in do_select /10.4/src/sql/sql_select.cc:20164 #17 0x5581314a93ad in JOIN::exec_inner() /10.4/src/sql/sql_select.cc:4542 #18 0x5581314a69d9 in JOIN::exec() /10.4/src/sql/sql_select.cc:4324 #19 0x5581314aabb9 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*) /10.4/src/sql/sql_select.cc:4763 #20 0x5581316aecfc in mysql_multi_update(THD*, TABLE_LIST*, List<Item>*, List<Item>*, Item*, unsigned long long, enum_duplicates, bool, st_select_lex_unit*, st_select_lex*, multi_update**) /10.4/src/sql/sql_update.cc:1962 #21 0x5581313db034 in mysql_execute_command(THD*) /10.4/src/sql/sql_parse.cc:4515 #22 0x5581313f374c in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /10.4/src/sql/sql_parse.cc:7995 #23 0x5581313c9ed3 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /10.4/src/sql/sql_parse.cc:1857 #24 0x5581313c6950 in do_command(THD*) /10.4/src/sql/sql_parse.cc:1373 #25 0x5581317c230c in do_handle_one_connection(CONNECT*) /10.4/src/sql/sql_connect.cc:1420 #26 0x5581317c1a65 in handle_one_connection /10.4/src/sql/sql_connect.cc:1316 #27 0x5581324c309c in pfs_spawn_thread /10.4/src/storage/perfschema/pfs.cc:1869 #28 0x7fc60aaf8608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477 previously allocated by thread T27 here: #0 0x7fc60b083808 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:144 #1 0x5581327c12e9 in mem_heap_create_block_func(mem_block_info_t*, unsigned long, char const*, unsigned int, unsigned long) /10.4/src/storage/innobase/mem/mem0mem.cc:277 #2 0x5581329b1109 in mem_heap_create_func /10.4/src/storage/innobase/include/mem0mem.inl:375 #3 0x5581329c86ca in row_sel_store_mysql_field /10.4/src/storage/innobase/row/row0sel.cc:3048 #4 0x5581329c97ef in row_sel_store_mysql_rec /10.4/src/storage/innobase/row/row0sel.cc:3179 #5 0x5581329d926b in row_search_mvcc(unsigned char*, page_cur_mode_t, row_prebuilt_t*, unsigned long, unsigned long) /10.4/src/storage/innobase/row/row0sel.cc:5594 #6 0x5581325d4d17 in ha_innobase::index_read(unsigned char*, unsigned char const*, unsigned int, ha_rkey_function) /10.4/src/storage/innobase/handler/ha_innodb.cc:9348 #7 0x5581325d806d in ha_innobase::index_first(unsigned char*) /10.4/src/storage/innobase/handler/ha_innodb.cc:9730 #8 0x5581325d85fd in ha_innobase::rnd_next(unsigned char*) /10.4/src/storage/innobase/handler/ha_innodb.cc:9823 #9 0x558131b8cde7 in handler::ha_rnd_next(unsigned char*) /10.4/src/sql/handler.cc:2880 #10 0x558131fbb4fe in rr_sequential(READ_RECORD*) /10.4/src/sql/records.cc:485 #11 0x558131222c13 in READ_RECORD::read_record() /10.4/src/sql/records.h:70 #12 0x558131523390 in join_init_read_record(st_join_table*) /10.4/src/sql/sql_select.cc:21576 #13 0x55813151c5af in sub_select(JOIN*, st_join_table*, bool) /10.4/src/sql/sql_select.cc:20625 #14 0x55813151a71b in do_select /10.4/src/sql/sql_select.cc:20164 #15 0x5581314a93ad in JOIN::exec_inner() /10.4/src/sql/sql_select.cc:4542 #16 0x5581314a69d9 in JOIN::exec() /10.4/src/sql/sql_select.cc:4324 #17 0x5581314aabb9 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*) /10.4/src/sql/sql_select.cc:4763 #18 0x5581316aecfc in mysql_multi_update(THD*, TABLE_LIST*, List<Item>*, List<Item>*, Item*, unsigned long long, enum_duplicates, bool, st_select_lex_unit*, st_select_lex*, multi_update**) /10.4/src/sql/sql_update.cc:1962 #19 0x5581313db034 in mysql_execute_command(THD*) /10.4/src/sql/sql_parse.cc:4515 #20 0x5581313f374c in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /10.4/src/sql/sql_parse.cc:7995 #21 0x5581313c9ed3 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /10.4/src/sql/sql_parse.cc:1857 #22 0x5581313c6950 in do_command(THD*) /10.4/src/sql/sql_parse.cc:1373 #23 0x5581317c230c in do_handle_one_connection(CONNECT*) /10.4/src/sql/sql_connect.cc:1420 #24 0x5581317c1a65 in handle_one_connection /10.4/src/sql/sql_connect.cc:1316 #25 0x5581324c309c in pfs_spawn_thread /10.4/src/storage/perfschema/pfs.cc:1869 #26 0x7fc60aaf8608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477 Thread T27 created by T0 here: #0 0x7fc60afb0815 in __interceptor_pthread_create ../../../../src/libsanitizer/asan/asan_interceptors.cc:208 #1 0x5581324c348d in spawn_thread_v1 /10.4/src/storage/perfschema/pfs.cc:1919 #2 0x5581310cbb6f in inline_mysql_thread_create /10.4/src/include/mysql/psi/mysql_thread.h:1275 #3 0x5581310e3a79 in create_thread_to_handle_connection(CONNECT*) /10.4/src/sql/mysqld.cc:6249 #4 0x5581310e4214 in create_new_thread(CONNECT*) /10.4/src/sql/mysqld.cc:6319 #5 0x5581310e46fa in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /10.4/src/sql/mysqld.cc:6417 #6 0x5581310e55b6 in handle_connections_sockets() /10.4/src/sql/mysqld.cc:6575 #7 0x5581310e317e in mysqld_main(int, char**) /10.4/src/sql/mysqld.cc:5907 #8 0x5581310c9dbc in main /10.4/src/sql/main.cc:25 #9 0x7fc60a5ce0b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x240b2) SUMMARY: AddressSanitizer: heap-use-after-free /10.4/src/strings/ctype.c:1109 in my_convert Shadow bytes around the buggy address: 0x0c5280053400: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c5280053410: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c5280053420: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c5280053430: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x0c5280053440: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd =>0x0c5280053450: fd[fd]fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c5280053460: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c5280053470: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c5280053480: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c5280053490: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 0x0c52800534a0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd 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 Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 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 Shadow gap: cc ==501721==ABORTING ----------SERVER LOG END-------------

People

Assignee:: Sergei Golubchik

Reporter:: Jingzhou Fu

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Dates

Created:: 2022-03-16 09:59

Updated:: 2022-05-30 17:58

Resolved:: 2022-04-28 11:18

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