ASAN use-after-poison in json_normalize_number

--source include/have_innodb.inc

CREATE TABLE t1 (

  i text CHARACTER SET utf8mb4 COLLATE utf8mb4_bin 

) ENGINE=InnoDB DEFAULT CHARSET=latin1;

INSERT INTO t1 VALUES ('0'),('1');

select json_normalize(i) from t1;

#UPDATE t1 SET i = json_normalize(i);

Version: '10.7.5-MariaDB-debug-log' 

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

==338114==ERROR: AddressSanitizer: use-after-poison on address 0x6290002ee2a1 at pc 0x559ca936b4f0 bp 0x7f6a54b10f90 sp 0x7f6a54b10f80

READ of size 1 at 0x6290002ee2a1 thread T11

    #0 0x559ca936b4ef in json_normalize_number /10.7/src/strings/json_normalize.c:151

    #1 0x559ca936ce57 in json_norm_value_number_init /10.7/src/strings/json_normalize.c:517

    #2 0x559ca936d14b in json_norm_value_init /10.7/src/strings/json_normalize.c:586

    #3 0x559ca936e3be in json_norm_build /10.7/src/strings/json_normalize.c:771

    #4 0x559ca936e893 in json_normalize /10.7/src/strings/json_normalize.c:835

    #5 0x559ca7b4d9b4 in Item_func_json_normalize::val_str(String*) /10.7/src/sql/item_jsonfunc.cc:4005

    #6 0x559ca7bbd1c3 in Type_handler::Item_send_str(Item*, Protocol*, st_value*) const /10.7/src/sql/sql_type.cc:7467

    #7 0x559ca79b04a5 in Type_handler_string_result::Item_send(Item*, Protocol*, st_value*) const /10.7/src/sql/sql_type.h:5454

    #8 0x559ca71c2203 in Item::send(Protocol*, st_value*) /10.7/src/sql/item.h:1227

    #9 0x559ca727afee in Protocol::send_result_set_row(List<Item>*) /10.7/src/sql/protocol.cc:1328

    #10 0x559ca7424d07 in select_send::send_data(List<Item>&) /10.7/src/sql/sql_class.cc:3103

    #11 0x559ca77424b8 in select_result_sink::send_data_with_check(List<Item>&, st_select_lex_unit*, unsigned long long) /10.7/src/sql/sql_class.h:5653

    #12 0x559ca76fd6a9 in end_send /10.7/src/sql/sql_select.cc:22490

    #13 0x559ca76f56f1 in evaluate_join_record /10.7/src/sql/sql_select.cc:21484

    #14 0x559ca76f3fb6 in sub_select(JOIN*, st_join_table*, bool) /10.7/src/sql/sql_select.cc:21254

    #15 0x559ca76f1fc9 in do_select /10.7/src/sql/sql_select.cc:20799

    #16 0x559ca767deb7 in JOIN::exec_inner() /10.7/src/sql/sql_select.cc:4762

    #17 0x559ca767b3b7 in JOIN::exec() /10.7/src/sql/sql_select.cc:4540

    #18 0x559ca767f926 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*) /10.7/src/sql/sql_select.cc:5020

    #19 0x559ca764fbda in handle_select(THD*, LEX*, select_result*, unsigned long) /10.7/src/sql/sql_select.cc:554

    #20 0x559ca7575712 in execute_sqlcom_select /10.7/src/sql/sql_parse.cc:6252

    #21 0x559ca7564335 in mysql_execute_command(THD*, bool) /10.7/src/sql/sql_parse.cc:3943

    #22 0x559ca7580996 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /10.7/src/sql/sql_parse.cc:8027

    #23 0x559ca7556c38 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /10.7/src/sql/sql_parse.cc:1894

    #24 0x559ca75539ad in do_command(THD*, bool) /10.7/src/sql/sql_parse.cc:1407

    #25 0x559ca79f84cf in do_handle_one_connection(CONNECT*, bool) /10.7/src/sql/sql_connect.cc:1418

    #26 0x559ca79f7d5b in handle_one_connection /10.7/src/sql/sql_connect.cc:1312

    #27 0x559ca85f5283 in pfs_spawn_thread /10.7/src/storage/perfschema/pfs.cc:2201

    #28 0x7f6a6398a608 in start_thread /build/glibc-SzIz7B/glibc-2.31/nptl/pthread_create.c:477

    #29 0x7f6a6355b132 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x11f132)

0x6290002ee2a1 is located 161 bytes inside of 16536-byte region [0x6290002ee200,0x6290002f2298)

allocated by thread T11 here:

    #0 0x7f6a63f16808 in __interceptor_malloc ../../../../src/libsanitizer/asan/asan_malloc_linux.cc:144

    #1 0x559ca884cb12 in ut_allocator<unsigned char, true>::allocate(unsigned long, unsigned char const*, unsigned int, bool, bool) /10.7/src/storage/innobase/include/ut0new.h:375

    #2 0x559ca8a30209 in mem_heap_create_block_func(mem_block_info_t*, unsigned long, char const*, unsigned int, unsigned long) /10.7/src/storage/innobase/mem/mem0mem.cc:277

    #3 0x559ca8c09e58 in mem_heap_create_func /10.7/src/storage/innobase/include/mem0mem.inl:377

    #4 0x559ca8c20591 in row_sel_store_mysql_field /10.7/src/storage/innobase/row/row0sel.cc:3060

    #5 0x559ca8c216ac in row_sel_store_mysql_rec /10.7/src/storage/innobase/row/row0sel.cc:3206

    #6 0x559ca8c31257 in row_search_mvcc(unsigned char*, page_cur_mode_t, row_prebuilt_t*, unsigned long, unsigned long) /10.7/src/storage/innobase/row/row0sel.cc:5673

    #7 0x559ca87f64d7 in ha_innobase::index_read(unsigned char*, unsigned char const*, unsigned int, ha_rkey_function) /10.7/src/storage/innobase/handler/ha_innodb.cc:9057

    #8 0x559ca87f9819 in ha_innobase::index_first(unsigned char*) /10.7/src/storage/innobase/handler/ha_innodb.cc:9426

    #9 0x559ca87f9da9 in ha_innobase::rnd_next(unsigned char*) /10.7/src/storage/innobase/handler/ha_innodb.cc:9519

    #10 0x559ca7e27030 in handler::ha_rnd_next(unsigned char*) /10.7/src/sql/handler.cc:3414

    #11 0x559ca7288a9f in rr_sequential(READ_RECORD*) /10.7/src/sql/records.cc:519

    #12 0x559ca7255823 in READ_RECORD::read_record() /10.7/src/sql/records.h:81

    #13 0x559ca76faf66 in join_init_read_record(st_join_table*) /10.7/src/sql/sql_select.cc:22248

    #14 0x559ca76f3dfa in sub_select(JOIN*, st_join_table*, bool) /10.7/src/sql/sql_select.cc:21251

    #15 0x559ca76f1fc9 in do_select /10.7/src/sql/sql_select.cc:20799

    #16 0x559ca767deb7 in JOIN::exec_inner() /10.7/src/sql/sql_select.cc:4762

    #17 0x559ca767b3b7 in JOIN::exec() /10.7/src/sql/sql_select.cc:4540

    #18 0x559ca767f926 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*) /10.7/src/sql/sql_select.cc:5020

    #19 0x559ca764fbda in handle_select(THD*, LEX*, select_result*, unsigned long) /10.7/src/sql/sql_select.cc:554

    #20 0x559ca7575712 in execute_sqlcom_select /10.7/src/sql/sql_parse.cc:6252

    #21 0x559ca7564335 in mysql_execute_command(THD*, bool) /10.7/src/sql/sql_parse.cc:3943

    #22 0x559ca7580996 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /10.7/src/sql/sql_parse.cc:8027

    #23 0x559ca7556c38 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /10.7/src/sql/sql_parse.cc:1894

    #24 0x559ca75539ad in do_command(THD*, bool) /10.7/src/sql/sql_parse.cc:1407

    #25 0x559ca79f84cf in do_handle_one_connection(CONNECT*, bool) /10.7/src/sql/sql_connect.cc:1418

    #26 0x559ca79f7d5b in handle_one_connection /10.7/src/sql/sql_connect.cc:1312

    #27 0x559ca85f5283 in pfs_spawn_thread /10.7/src/storage/perfschema/pfs.cc:2201

    #28 0x7f6a6398a608 in start_thread /build/glibc-SzIz7B/glibc-2.31/nptl/pthread_create.c:477

Thread T11 created by T0 here:

    #0 0x7f6a63e43815 in __interceptor_pthread_create ../../../../src/libsanitizer/asan/asan_interceptors.cc:208

    #1 0x559ca85f0e60 in my_thread_create /10.7/src/storage/perfschema/my_thread.h:52

    #2 0x559ca85f5676 in pfs_spawn_thread_v1 /10.7/src/storage/perfschema/pfs.cc:2252

    #3 0x559ca7198c48 in inline_mysql_thread_create /10.7/src/include/mysql/psi/mysql_thread.h:1139

    #4 0x559ca71b0c2f in create_thread_to_handle_connection(CONNECT*) /10.7/src/sql/mysqld.cc:6008

    #5 0x559ca71b12ab in create_new_thread(CONNECT*) /10.7/src/sql/mysqld.cc:6067

    #6 0x559ca71b1618 in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /10.7/src/sql/mysqld.cc:6129

    #7 0x559ca71b1fed in handle_connections_sockets() /10.7/src/sql/mysqld.cc:6253

    #8 0x559ca71b043c in mysqld_main(int, char**) /10.7/src/sql/mysqld.cc:5903

    #9 0x559ca7197f6c in main /10.7/src/sql/main.cc:34

    #10 0x7f6a63460082 in __libc_start_main ../csu/libc-start.c:308

SUMMARY: AddressSanitizer: use-after-poison /10.7/src/strings/json_normalize.c:151 in json_normalize_number

Shadow bytes around the buggy address:

  0x0c5280055c00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c5280055c10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c5280055c20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c5280055c30: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c5280055c40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

=>0x0c5280055c50: 00 00 00 f7[01]f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c5280055c60: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c5280055c70: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c5280055c80: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c5280055c90: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c5280055ca0: 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

  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

==338114==ABORTING