MariaDB UAP issue

CREATE TABLE v0 ( v2 INT PRIMARY KEY , v1 SERIAL NOT NULL ) ;

INSERT INTO v0 VALUES ( 16 , NULL ) ;

ALTER TABLE v0 ADD v0 FLOAT AS ( ( 'x' LIKE JSON_DETAILED ( ( CURRENT_USER * ( TRUE AND COALESCE ( 255 | TRUE , 0 ) = 127 ) ) ) ) ) ;

SELECT * , v1 IN ( 'x' ^ -128 , -1 ) FROM v0 AS v0 ORDER BY v2 FOR UPDATE ;

SELECT * , v2 IN ( 'x' ^ 45 , -1 ) FROM v0 AS v0 ORDER BY v2 ;

SELECT * FROM v0 WHERE NOT ( 'x' = v1 AND v2 = -1 ) ORDER BY v1 ;

SELECT * FROM v0 WHERE NOT ( 'x' = v1 AND v2 = 8 ) ORDER BY v1 ;

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==8795==ERROR: AddressSanitizer: use-after-poison on address 0x62900008e140 at pc 0x0000012ea7a7 bp 0x7ff453054250 sp 0x7ff453054248

READ of size 8 at 0x62900008e140 thread T14

    #0 0x12ea7a6 in VDec::VDec(Item*) /root/mariadb/sql/sql_type.cc:301:16

    #1 0x16b8e06 in Arg_comparator::compare_decimal() /root/mariadb/sql/item_cmpfunc.cc:854:10

    #2 0x16be218 in Arg_comparator::compare() /root/mariadb/sql/item_cmpfunc.h:103:33

    #3 0x16be218 in Item_func_eq::val_int() /root/mariadb/sql/item_cmpfunc.cc:1762:18

    #4 0x1315e0d in Type_handler_int_result::Item_val_bool(Item*) const /root/mariadb/sql/sql_type.cc:5105:16

    #5 0x16ec0f7 in Item_cond_and::val_int() /root/mariadb/sql/item_cmpfunc.cc:5421:16

    #6 0x178256d in Item_int_func::val_real() /root/mariadb/sql/item_func.cc

    #7 0x178a856 in Item_func_mul::real_op() /root/mariadb/sql/item_func.cc:1362:48

    #8 0x1783301 in Item_func_hybrid_field_type::val_str_from_real_op(String*) /root/mariadb/sql/item_func.cc:836:14

    #9 0x127e866 in Item_func_json_format::val_str(String*) /root/mariadb/sql/item_jsonfunc.cc:3691:24

    #10 0x16ee822 in Item_func_like::val_int() /root/mariadb/sql/item_cmpfunc.cc:5618:26

    #11 0x164cc16 in Item::save_int_in_field(Field*, bool) /root/mariadb/sql/item.cc:6801:16

    #12 0x164ce59 in Item::save_in_field(Field*, bool) /root/mariadb/sql/item.cc:6811:30

    #13 0x1072e98 in TABLE::update_virtual_fields(handler*, enum_vcol_update_mode) /root/mariadb/sql/table.cc:8757:37

    #14 0x15ca0f7 in handler::ha_index_first(unsigned char*) /root/mariadb/sql/handler.cc:3551:14

    #15 0xe5db5c in join_read_first(st_join_table*) /root/mariadb/sql/sql_select.cc:22132:7

    #16 0xd4c04d in sub_select(JOIN*, st_join_table*, bool) /root/mariadb/sql/sql_select.cc:21092:12

    #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 0xd4d74b in handle_select(THD*, LEX*, select_result*, unsigned long) /root/mariadb/sql/sql_select.cc:543:10

    #22 0xc74410 in execute_sqlcom_select(THD*, TABLE_LIST*) /root/mariadb/sql/sql_parse.cc:6252:12

    #23 0xc609c9 in mysql_execute_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:3943:12

    #24 0xc4a67e in mysql_parse(THD*, char*, unsigned int, Parser_state*) /root/mariadb/sql/sql_parse.cc:8027:18

    #25 0xc41ba9 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /root/mariadb/sql/sql_parse.cc:1894:7

    #26 0xc4b74b in do_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:1402:17

    #27 0x111f9f2 in do_handle_one_connection(CONNECT*, bool) /root/mariadb/sql/sql_connect.cc:1418:11

    #28 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5

    #29 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3

    #30 0x7ff477ffb608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8

    #31 0x7ff477d11162 in clone /build/glibc-sMfBJT/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95

0x62900008e140 is located 8000 bytes inside of 16400-byte region [0x62900008c200,0x629000090210)

allocated by thread T14 here:

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

    #1 0x2a76878 in my_malloc /root/mariadb/mysys/my_malloc.c:90:29

    #2 0x2a582eb in root_alloc /root/mariadb/mysys/my_alloc.c:66:10

    #3 0x2a582eb in reset_root_defaults /root/mariadb/mysys/my_alloc.c:243:30

    #4 0xae83b5 in THD::init_for_queries() /root/mariadb/sql/sql_class.cc:1393:3

    #5 0x111e580 in prepare_new_connection_state(THD*) /root/mariadb/sql/sql_connect.cc:1240:8

    #6 0x1120266 in thd_prepare_connection(THD*) /root/mariadb/sql/sql_connect.cc:1333:3

    #7 0x111f8cc in do_handle_one_connection(CONNECT*, bool) /root/mariadb/sql/sql_connect.cc:1408:9

    #8 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5

    #9 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3

    #10 0x7ff477ffb608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8

Thread T14 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 0x7ff477c160b2 in __libc_start_main /build/glibc-sMfBJT/glibc-2.31/csu/../csu/libc-start.c:308:16

SUMMARY: AddressSanitizer: use-after-poison /root/mariadb/sql/sql_type.cc:301:16 in VDec::VDec(Item*)

Shadow bytes around the buggy address:

  0x0c5280009bd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009be0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009bf0: f7 00 00 00 f7 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009c00: f7 00 00 00 00 00 00 f7 00 00 f7 00 00 00 00 00

  0x0c5280009c10: 00 00 00 00 00 00 00 00 00 00 f7 00 f7 00 00 00

=>0x0c5280009c20: 00 00 f7 00 00 00 00 00[f7]00 00 00 00 00 00 00

  0x0c5280009c30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009c40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009c50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009c60: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009c70: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

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

==8795==ABORTING