MariaDB UAP issue

CREATE TABLE v0 ( v1 INT UNIQUE PRIMARY KEY ) ; 

DROP EVENT IF EXISTS v0 ; 

UPDATE v0 SET v1 = -1 WHERE v1 = 'x' ORDER BY 'x' DESC LIMIT 93 ; 

ALTER TABLE v0 ADD COLUMN ( MEMORY TINYBLOB DEFAULT ( v1 IN ( DAYNAME ( v1 ) , '' , 'x' 'x' 'x' ) ) UNIQUE ) ;

 UPDATE v0 SET v1 = NULL WHERE ( IF ( v1 AND v1 , 72 , 30 ) ) ;

 INSERT IGNORE INTO v0 SET v1 = ( '' ) + ( ( 'x' / NULL = INET_ATON ( ( v1 OR 'x' ) ) ) ) ;

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==9569==ERROR: AddressSanitizer: use-after-poison on address 0x629000088404 at pc 0x0000009086a1 bp 0x7f2f01fad0d0 sp 0x7f2f01fad0c8

READ of size 1 at 0x629000088404 thread T14

    #0 0x9086a0 in Binary_string::free_buffer() /root/mariadb/sql/sql_string.h:224:9

    #1 0x9086a0 in Binary_string::free() /root/mariadb/sql/sql_string.h:680:5

    #2 0x9086a0 in Binary_string::~Binary_string() /root/mariadb/sql/sql_string.h:271:5

    #3 0x9086a0 in Arg_comparator::~Arg_comparator() /root/mariadb/sql/item_cmpfunc.h:45:7

    #4 0x171733a in Item_bool_rowready_func2::~Item_bool_rowready_func2() /root/mariadb/sql/item_cmpfunc.h:535:7

    #5 0x171733a in Item_func_eq::~Item_func_eq() /root/mariadb/sql/item_cmpfunc.h:751:7

    #6 0xaefe90 in Item::delete_self() /root/mariadb/sql/item.h:2522:5

    #7 0xaefe90 in Query_arena::free_items() /root/mariadb/sql/sql_class.cc:3833:16

    #8 0xaefe90 in THD::cleanup_after_query() /root/mariadb/sql/sql_class.cc:2292:3

    #9 0xc41ba9 in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /root/mariadb/sql/sql_parse.cc:1894:7

    #10 0xc4b74b in do_command(THD*, bool) /root/mariadb/sql/sql_parse.cc:1402:17

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

    #12 0x111f248 in handle_one_connection /root/mariadb/sql/sql_connect.cc:1312:5

    #13 0x1f3f9dd in pfs_spawn_thread /root/mariadb/storage/perfschema/pfs.cc:2201:3

    #14 0x7f2f26f57608 in start_thread /build/glibc-sMfBJT/glibc-2.31/nptl/pthread_create.c:477:8

    #15 0x7f2f26c6d162 in clone /build/glibc-sMfBJT/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95

0x629000088404 is located 4612 bytes inside of 16400-byte region [0x629000087200,0x62900008b210)

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 0x7f2f26f57608 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 0x7f2f26b720b2 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_string.h:224:9 in Binary_string::free_buffer()

Shadow bytes around the buggy address:

  0x0c5280009030: 00 f7 00 00 00 f7 00 00 f7 00 00 00 00 00 00 00

  0x0c5280009040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f7 00

  0x0c5280009050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009070: 00 00 00 00 00 00 00 00 00 00 00 00 00 f7 f7 f7

=>0x0c5280009080:[f7]f7 f7 f7 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c5280009090: 00 00 00 00 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7

  0x0c52800090a0: f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 f7 00 00 f7 00

  0x0c52800090b0: 00 f7 00 00 00 00 00 00 00 00 00 00 00 00 00 00

  0x0c52800090c0: 00 00 00 00 00 00 f7 00 00 00 00 00 00 00 00 00

  0x0c52800090d0: 00 00 00 00 00 00 00 f7 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

==9569==ABORTING