Server crash or ASAN heap-use-after-free in my_strtod_int / Value_source::Converter_strntod::Converter_strntod

==11131==ERROR: AddressSanitizer: heap-use-after-free on address 0x60c000027a70 at pc 0x558f1bd8c6de bp 0x7f054225f0e0 sp 0x7f054225f0d8

READ of size 1 at 0x60c000027a70 thread T5

    #0 0x558f1bd8c6dd in my_strtod_int /data/src/10.2/strings/dtoa.c:1378

    #1 0x558f1bd8904f in my_strtod /data/src/10.2/strings/dtoa.c:469

    #2 0x558f1bd34220 in my_strntod_8bit /data/src/10.2/strings/ctype-simple.c:788

    #3 0x558f1a4ac53e in Value_source::Converter_strntod::Converter_strntod(charset_info_st const*, char const*, unsigned long) /data/src/10.2/sql/field.h:159

    #4 0x558f1a4ac889 in Value_source::Converter_strntod_with_warn::Converter_strntod_with_warn(THD*, Value_source::Warn_filter, charset_info_st const*, char const*, unsigned long) /data/src/10.2/sql/field.h:229

    #5 0x558f1ac0c1e0 in Field_blob::val_real() /data/src/10.2/sql/field.cc:8101

    #6 0x558f1ac93fc6 in Item_field::val_real() /data/src/10.2/sql/item.cc:2800

    #7 0x558f1acef131 in Arg_comparator::compare_real() /data/src/10.2/sql/item_cmpfunc.cc:849

    #8 0x558f1ad29dba in Arg_comparator::compare() /data/src/10.2/sql/item_cmpfunc.h:87

    #9 0x558f1acfa13f in Item_func_ne::val_int() /data/src/10.2/sql/item_cmpfunc.cc:1805

    #10 0x558f1ac7e932 in Item::val_bool() /data/src/10.2/sql/item.cc:112

    #11 0x558f1ad188cc in Item_cond_and::val_int() /data/src/10.2/sql/item_cmpfunc.cc:5048

    #12 0x558f1a8bef08 in SQL_SELECT::skip_record(THD*) /data/src/10.2/sql/opt_range.h:1632

    #13 0x558f1ac3fc31 in find_all_keys /data/src/10.2/sql/filesort.cc:835

    #14 0x558f1ac3c045 in filesort(THD*, TABLE*, Filesort*, Filesort_tracker*, JOIN*, unsigned long long) /data/src/10.2/sql/filesort.cc:279

    #15 0x558f1a781ba8 in create_sort_index(THD*, JOIN*, st_join_table*, Filesort*) /data/src/10.2/sql/sql_select.cc:21913

    #16 0x558f1a772d78 in st_join_table::sort_table() /data/src/10.2/sql/sql_select.cc:19729

    #17 0x558f1a772396 in join_init_read_record(st_join_table*) /data/src/10.2/sql/sql_select.cc:19670

    #18 0x558f1a76bac7 in sub_select(JOIN*, st_join_table*, bool) /data/src/10.2/sql/sql_select.cc:18761

    #19 0x558f1a769fd2 in do_select /data/src/10.2/sql/sql_select.cc:18308

    #20 0x558f1a70a208 in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3623

    #21 0x558f1a707e9d in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3418

    #22 0x558f1a70b285 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/10.2/sql/sql_select.cc:3818

    #23 0x558f1a6ea260 in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:376

    #24 0x558f1a66ced2 in execute_sqlcom_select /data/src/10.2/sql/sql_parse.cc:6481

    #25 0x558f1a659bbb in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:3487

    #26 0x558f1a675bbd in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.2/sql/sql_parse.cc:8015

    #27 0x558f1a6505aa in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.2/sql/sql_parse.cc:1826

    #28 0x558f1a64d63f in do_command(THD*) /data/src/10.2/sql/sql_parse.cc:1379

    #29 0x558f1a994034 in do_handle_one_connection(CONNECT*) /data/src/10.2/sql/sql_connect.cc:1335

    #30 0x558f1a993a49 in handle_one_connection /data/src/10.2/sql/sql_connect.cc:1241

    #31 0x558f1b3b10db in pfs_spawn_thread /data/src/10.2/storage/perfschema/pfs.cc:1862

    #32 0x7f054e6d6493 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x7493)

    #33 0x7f054cabc93e in __clone (/lib/x86_64-linux-gnu/libc.so.6+0xe893e)

0x60c000027a70 is located 112 bytes inside of 124-byte region [0x60c000027a00,0x60c000027a7c)

freed by thread T5 here:

    #0 0x7f054e940527 in __interceptor_free (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x54527)

    #1 0x558f1bcd2043 in free_memory /data/src/10.2/mysys/safemalloc.c:279

    #2 0x558f1bcd1649 in sf_free /data/src/10.2/mysys/safemalloc.c:197

    #3 0x558f1bca08d8 in my_free /data/src/10.2/mysys/my_malloc.c:217

    #4 0x558f1a46c7f7 in String::free() /data/src/10.2/sql/sql_string.h:351

    #5 0x558f1a4abebe in String::set(char const*, unsigned int, charset_info_st const*) /data/src/10.2/sql/sql_string.h:274

    #6 0x558f1ac0ccdb in Field_blob::val_str(String*, String*) /data/src/10.2/sql/field.cc:8128

    #7 0x558f1a48fc1f in Field::val_str(String*) /data/src/10.2/sql/field.h:866

    #8 0x558f1ac2ba7c in Field_blob::store_field(Field*) (/data/bld/10.2-asan/bin/mysqld+0x1254a7c)

    #9 0x558f1ac39b2d in field_conv_incompatible /data/src/10.2/sql/field_conv.cc:831

    #10 0x558f1ac39bca in field_conv(Field*, Field*) /data/src/10.2/sql/field_conv.cc:844

    #11 0x558f1acad0c8 in save_field_in_field /data/src/10.2/sql/item.cc:6257

    #12 0x558f1acad5c4 in Item_field::save_in_field(Field*, bool) /data/src/10.2/sql/item.cc:6303

    #13 0x558f1a907bac in TABLE::update_virtual_fields(handler*, enum_vcol_update_mode) /data/src/10.2/sql/table.cc:7640

    #14 0x558f1ac5c73c in handler::ha_index_read_map(unsigned char*, unsigned char const*, unsigned long, ha_rkey_function) /data/src/10.2/sql/handler.cc:2684

    #15 0x558f1ac6d868 in handler::read_range_first(st_key_range const*, st_key_range const*, bool, bool) /data/src/10.2/sql/handler.cc:5378

    #16 0x558f1bc20291 in ha_partition::handle_ordered_index_scan(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:6181

    #17 0x558f1bc1c24c in ha_partition::common_index_read(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:5527

    #18 0x558f1bc1da6d in ha_partition::read_range_first(st_key_range const*, st_key_range const*, bool, bool) /data/src/10.2/sql/ha_partition.cc:5810

    #19 0x558f1aa30dd8 in handler::multi_range_read_next(void**) /data/src/10.2/sql/multi_range_read.cc:303

    #20 0x558f1afab616 in QUICK_RANGE_SELECT::get_next() /data/src/10.2/sql/opt_range.cc:11445

    #21 0x558f1ac3f6e6 in find_all_keys /data/src/10.2/sql/filesort.cc:781

    #22 0x558f1ac3c045 in filesort(THD*, TABLE*, Filesort*, Filesort_tracker*, JOIN*, unsigned long long) /data/src/10.2/sql/filesort.cc:279

    #23 0x558f1a781ba8 in create_sort_index(THD*, JOIN*, st_join_table*, Filesort*) /data/src/10.2/sql/sql_select.cc:21913

    #24 0x558f1a772d78 in st_join_table::sort_table() /data/src/10.2/sql/sql_select.cc:19729

    #25 0x558f1a772396 in join_init_read_record(st_join_table*) /data/src/10.2/sql/sql_select.cc:19670

    #26 0x558f1a76bac7 in sub_select(JOIN*, st_join_table*, bool) /data/src/10.2/sql/sql_select.cc:18761

    #27 0x558f1a769fd2 in do_select /data/src/10.2/sql/sql_select.cc:18308

    #28 0x558f1a70a208 in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3623

    #29 0x558f1a707e9d in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3418

previously allocated by thread T5 here:

    #0 0x7f054e94073f in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x5473f)

    #1 0x558f1bcd0db9 in sf_malloc /data/src/10.2/mysys/safemalloc.c:118

    #2 0x558f1bca0010 in my_malloc /data/src/10.2/mysys/my_malloc.c:101

    #3 0x558f1a83268b in String::realloc_raw(unsigned long) /data/src/10.2/sql/sql_string.cc:102

    #4 0x558f1a46c91e in String::realloc(unsigned long) /data/src/10.2/sql/sql_string.h:367

    #5 0x558f1a832f6b in String::copy() /data/src/10.2/sql/sql_string.cc:158

    #6 0x558f1ac2bb85 in Field_blob::store_field(Field*) (/data/bld/10.2-asan/bin/mysqld+0x1254b85)

    #7 0x558f1ac39b2d in field_conv_incompatible /data/src/10.2/sql/field_conv.cc:831

    #8 0x558f1ac39bca in field_conv(Field*, Field*) /data/src/10.2/sql/field_conv.cc:844

    #9 0x558f1acad0c8 in save_field_in_field /data/src/10.2/sql/item.cc:6257

    #10 0x558f1acad5c4 in Item_field::save_in_field(Field*, bool) /data/src/10.2/sql/item.cc:6303

    #11 0x558f1a907bac in TABLE::update_virtual_fields(handler*, enum_vcol_update_mode) /data/src/10.2/sql/table.cc:7640

    #12 0x558f1ac5c73c in handler::ha_index_read_map(unsigned char*, unsigned char const*, unsigned long, ha_rkey_function) /data/src/10.2/sql/handler.cc:2684

    #13 0x558f1ac6d868 in handler::read_range_first(st_key_range const*, st_key_range const*, bool, bool) /data/src/10.2/sql/handler.cc:5378

    #14 0x558f1bc20291 in ha_partition::handle_ordered_index_scan(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:6181

    #15 0x558f1bc1c24c in ha_partition::common_index_read(unsigned char*, bool) /data/src/10.2/sql/ha_partition.cc:5527

    #16 0x558f1bc1da6d in ha_partition::read_range_first(st_key_range const*, st_key_range const*, bool, bool) /data/src/10.2/sql/ha_partition.cc:5810

    #17 0x558f1aa30dd8 in handler::multi_range_read_next(void**) /data/src/10.2/sql/multi_range_read.cc:303

    #18 0x558f1afab616 in QUICK_RANGE_SELECT::get_next() /data/src/10.2/sql/opt_range.cc:11445

    #19 0x558f1ac3f6e6 in find_all_keys /data/src/10.2/sql/filesort.cc:781

    #20 0x558f1ac3c045 in filesort(THD*, TABLE*, Filesort*, Filesort_tracker*, JOIN*, unsigned long long) /data/src/10.2/sql/filesort.cc:279

    #21 0x558f1a781ba8 in create_sort_index(THD*, JOIN*, st_join_table*, Filesort*) /data/src/10.2/sql/sql_select.cc:21913

    #22 0x558f1a772d78 in st_join_table::sort_table() /data/src/10.2/sql/sql_select.cc:19729

    #23 0x558f1a772396 in join_init_read_record(st_join_table*) /data/src/10.2/sql/sql_select.cc:19670

    #24 0x558f1a76bac7 in sub_select(JOIN*, st_join_table*, bool) /data/src/10.2/sql/sql_select.cc:18761

    #25 0x558f1a769fd2 in do_select /data/src/10.2/sql/sql_select.cc:18308

    #26 0x558f1a70a208 in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3623

    #27 0x558f1a707e9d in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3418

    #28 0x558f1a70b285 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/10.2/sql/sql_select.cc:3818

    #29 0x558f1a6ea260 in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:376

Thread T5 created by T0 here:

    #0 0x7f054e90fbba in pthread_create (/usr/lib/x86_64-linux-gnu/libasan.so.1+0x23bba)

    #1 0x558f1b3b16a3 in spawn_thread_v1 /data/src/10.2/storage/perfschema/pfs.cc:1912

    #2 0x558f1a449e7e in inline_mysql_thread_create /data/src/10.2/include/mysql/psi/mysql_thread.h:1239

    #3 0x558f1a45ee1b in create_thread_to_handle_connection(CONNECT*) /data/src/10.2/sql/mysqld.cc:6466

    #4 0x558f1a45f520 in create_new_thread /data/src/10.2/sql/mysqld.cc:6536

    #5 0x558f1a460537 in handle_connections_sockets() /data/src/10.2/sql/mysqld.cc:6811

    #6 0x558f1a45e370 in mysqld_main(int, char**) /data/src/10.2/sql/mysqld.cc:6085

    #7 0x558f1a44821f in main /data/src/10.2/sql/main.cc:25

    #8 0x7f054c9f42b0 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x202b0)

SUMMARY: AddressSanitizer: heap-use-after-free /data/src/10.2/strings/dtoa.c:1378 my_strtod_int

Shadow bytes around the buggy address:

  0x0c187fffcef0: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00

  0x0c187fffcf00: 00 00 00 00 00 00 00 04 fa fa fa fa fa fa fa fa

  0x0c187fffcf10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 04

  0x0c187fffcf20: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd

  0x0c187fffcf30: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa

=>0x0c187fffcf40: fd fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd

  0x0c187fffcf50: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd

  0x0c187fffcf60: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa

  0x0c187fffcf70: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c187fffcf80: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00

  0x0c187fffcf90: 00 00 00 00 00 00 00 04 fa fa fa fa fa fa fa fa

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

==11131==ABORTING

--source include/have_partition.inc

CREATE TABLE t1 (

  pk INT PRIMARY KEY,

  b BLOB,

  vb TEXT AS (b) VIRTUAL,

  d INT,

  vd INT AS (d),

 KEY(d)

) PARTITION BY KEY() PARTITIONS 6;

INSERT IGNORE INTO t1 (pk,b,d) VALUES

  (1,'1',0),(2,'2',1),(3,'3',2),(4,'4',3),(5,'5',4),(6,'6',5),

  (7,'7',6),(8,NULL,NULL),(9,'8',7),(10,NULL,8);

SELECT * FROM t1 WHERE vb != d AND d > 0 ORDER BY vd;

# Cleanup

DROP TABLE t1;

#3  <signal handler called>

#4  0x000055d2a44c61d4 in my_strtod_int (s00=0x8f8f8f8f8f8f8f8f <error: Cannot access memory at address 0x8f8f8f8f8f8f8f8f>, se=0x7fcdbc1ecc90, error=0x7fcdbc1ecc98, buf=0x7fcdbc1ebd30 "`\275\036\274\315\177", buf_size=3680) at /data/src/10.2/strings/dtoa.c:1378

#5  0x000055d2a44c4e2d in my_strtod (str=0x8f8f8f8f8f8f8f8f <error: Cannot access memory at address 0x8f8f8f8f8f8f8f8f>, end=0x7fcdbc1ecc90, error=0x7fcdbc1ecc98) at /data/src/10.2/strings/dtoa.c:469

#6  0x000055d2a44a2c6d in my_strntod_8bit (cs=0x55d2a4e6a580 <my_charset_bin>, str=0x8f8f8f8f8f8f8f8f <error: Cannot access memory at address 0x8f8f8f8f8f8f8f8f>, length=36751, end=0x7fcdbc1ecc90, err=0x7fcdbc1ecc98) at /data/src/10.2/strings/ctype-simple.c:788

#7  0x000055d2a39e0288 in Value_source::Converter_strntod::Converter_strntod (this=0x7fcdbc1ecc90, cs=0x55d2a4e6a580 <my_charset_bin>, str=0x8f8f8f8f8f8f8f8f <error: Cannot access memory at address 0x8f8f8f8f8f8f8f8f>, length=36751) at /data/src/10.2/sql/field.h:159

#8  0x000055d2a39e03c0 in Value_source::Converter_strntod_with_warn::Converter_strntod_with_warn (this=0x7fcdbc1ecc90, thd=0x7fcd44000b00, filter=..., cs=0x55d2a4e6a580 <my_charset_bin>, str=0x8f8f8f8f8f8f8f8f <error: Cannot access memory at address 0x8f8f8f8f8f8f8f8f>, length=36751) at /data/src/10.2/sql/field.h:229

#9  0x000055d2a3cfb054 in Field_blob::val_real (this=0x7fcd44162018) at /data/src/10.2/sql/field.cc:8101

#10 0x000055d2a3d2f534 in Item_field::val_real (this=0x7fcd44162138) at /data/src/10.2/sql/item.cc:2800

#11 0x000055d2a3d8f213 in Item_func_plus::real_op (this=0x7fcd440fdf08) at /data/src/10.2/sql/item_func.cc:1300

#12 0x000055d2a3d8da3f in Item_func_hybrid_field_type::val_real (this=0x7fcd440fdf08) at /data/src/10.2/sql/item_func.cc:911

#13 0x000055d2a3d3916d in Item::save_in_field (this=0x7fcd440fdf08, field=0x7fcd4405c2d8, no_conversions=false) at /data/src/10.2/sql/item.cc:6377

#14 0x000055d2a3bab48d in TABLE::update_virtual_fields (this=0x7fcd4411f170, h=0x7fcd440ef018, update_mode=VCOL_UPDATE_FOR_WRITE) at /data/src/10.2/sql/table.cc:7640

#15 0x000055d2a3a34dc3 in fill_record (thd=0x7fcd44000b00, table_arg=0x7fcd4411f170, fields=..., values=..., ignore_errors=false, update=false) at /data/src/10.2/sql/sql_base.cc:8035

#16 0x000055d2a3a35233 in fill_record_n_invoke_before_triggers (thd=0x7fcd44000b00, table=0x7fcd4411f170, fields=..., values=..., ignore_errors=false, event=TRG_EVENT_INSERT) at /data/src/10.2/sql/sql_base.cc:8164

#17 0x000055d2a3a74cea in mysql_insert (thd=0x7fcd44000b00, table_list=0x7fcd440277b0, fields=..., values_list=..., update_fields=..., update_values=..., duplic=DUP_ERROR, ignore=true) at /data/src/10.2/sql/sql_insert.cc:958

#18 0x000055d2a3a9cbc3 in mysql_execute_command (thd=0x7fcd44000b00) at /data/src/10.2/sql/sql_parse.cc:4438

#19 0x000055d2a3aa80b3 in mysql_parse (thd=0x7fcd44000b00, rawbuf=0x7fcd44027658 "INSERT IGNORE INTO `oltp3` ( `k` ) VALUES ( 26138 ) /* QNO 6195 CON_ID 17 */", length=76, parser_state=0x7fcdbc1ee250, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:8015

#20 0x000055d2a3a959ed in dispatch_command (command=COM_QUERY, thd=0x7fcd44000b00, packet=0x7fcd440088a1 "INSERT IGNORE INTO `oltp3` ( `k` ) VALUES ( 26138 ) /* QNO 6195 CON_ID 17 */", packet_length=76, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:1826

#21 0x000055d2a3a94344 in do_command (thd=0x7fcd44000b00) at /data/src/10.2/sql/sql_parse.cc:1379

#22 0x000055d2a3be72cf in do_handle_one_connection (connect=0x55d2a81153e0) at /data/src/10.2/sql/sql_connect.cc:1335

#23 0x000055d2a3be705c in handle_one_connection (arg=0x55d2a81153e0) at /data/src/10.2/sql/sql_connect.cc:1241

#24 0x00007fcdbf7d3494 in start_thread (arg=0x7fcdbc1ef700) at pthread_create.c:333

#25 0x00007fcdbdbb993f in clone () from /lib/x86_64-linux-gnu/libc.so.6