CREATE TABLE t (f varchar(8));

CREATE ALGORITHM=MERGE VIEW v AS SELECT * FROM t;

PREPARE stmt FROM 'UPDATE v SET f = "qux" WHERE f = CONVERT("x" USING UTF32)';

EXECUTE stmt;

EXECUTE stmt;

# Cleanup

DEALLOCATE PREPARE stmt;

DROP VIEW v;

DROP TABLE t;

CREATE TABLE t (a INT);

CREATE VIEW v AS SELECT * FROM t;

PREPARE stmt FROM 'DELETE FROM v WHERE a LIKE _UTF32 "1"';

EXECUTE stmt;

EXECUTE stmt;

# Cleanup

DEALLOCATE PREPARE stmt;

DROP VIEW v;

DROP TABLE t;

mariadbd: /data/bld/11.2-asan/mysys/my_alloc.c:275: alloc_root: Assertion `(mem_root->flags & 4) == 0' failed.

241008  2:55:50 [ERROR] mysqld got signal 6 ;

#9  0x00007f1fb5e53e32 in __GI___assert_fail (assertion=0x55d797512d80 "(mem_root->flags & 4) == 0", file=0x55d797512880 "/data/bld/11.6-asan/mysys/my_alloc.c", line=275, function=0x55d797513280 <__PRETTY_FUNCTION__.1> "alloc_root") at ./assert/assert.c:101

#10 0x000055d79608d44c in alloc_root (mem_root=0x61900009b928, length=272) at /data/bld/11.6-asan/mysys/my_alloc.c:275

#11 0x000055d793e0faa2 in Item::operator new (size=272, mem_root=0x61900009b928) at /data/bld/11.6-asan/sql/item.h:862

#12 0x000055d794bbeecc in Type_std_attributes::agg_item_set_converter (this=0x62d00025b310, coll=..., fname=..., args=0x62d00025b388, nargs=2, flags=7, item_sep=1, single_err=0x0) at /data/bld/11.6-asan/sql/item.cc:2736

#13 0x000055d793eafea7 in Type_std_attributes::agg_arg_charsets (this=0x62d00025b310, c=..., func_name=..., items=0x62d00025b388, nitems=2, flags=7, item_sep=1) at /data/bld/11.6-asan/sql/sql_type.h:3399

#14 0x000055d793eafefd in Type_std_attributes::agg_arg_charsets_for_comparison (this=0x62d00025b310, c=..., func_name=..., items=0x62d00025b388, nitems=2, item_sep=1) at /data/bld/11.6-asan/sql/sql_type.h:3448

#15 0x000055d793eb2bdf in Item_func_or_sum::agg_arg_charsets_for_comparison (this=0x62d00025b308, c=..., items=0x62d00025b388, nitems=2, item_sep=1) at /data/bld/11.6-asan/sql/item.h:5640

#16 0x000055d793eb809c in Item_func_like::fix_length_and_dec (this=0x62d00025b308, thd=0x62c0000c0218) at /data/bld/11.6-asan/sql/item_cmpfunc.h:3008

#17 0x000055d794cab283 in Item_func::fix_fields (this=0x62d00025b308, thd=0x62c0000c0218, ref=0x6290000e68c0) at /data/bld/11.6-asan/sql/item_func.cc:370

#18 0x000055d794c58473 in Item_func_like::fix_fields (this=0x62d00025b308, thd=0x62c0000c0218, ref=0x6290000e68c0) at /data/bld/11.6-asan/sql/item_cmpfunc.cc:6040

#19 0x000055d793f0f35d in Item::fix_fields_if_needed (this=0x62d00025b308, thd=0x62c0000c0218, ref=0x6290000e68c0) at /data/bld/11.6-asan/sql/item.h:1167

#20 0x000055d793f0f393 in Item::fix_fields_if_needed_for_scalar (this=0x62d00025b308, thd=0x62c0000c0218, ref=0x6290000e68c0) at /data/bld/11.6-asan/sql/item.h:1176

#21 0x000055d794045d63 in Item::fix_fields_if_needed_for_bool (this=0x62d00025b308, thd=0x62c0000c0218, ref=0x6290000e68c0) at /data/bld/11.6-asan/sql/item.h:1180

#22 0x000055d79403cdf4 in setup_conds (thd=0x62c0000c0218, tables=0x62d00025aa10, leaves=..., conds=0x6290000e68c0) at /data/bld/11.6-asan/sql/sql_base.cc:8923

#23 0x000055d7942c5bdf in setup_without_group (thd=0x62c0000c0218, ref_pointer_array=..., tables=0x62d00025aa10, leaves=..., fields=..., all_fields=..., conds=0x6290000e68c0, order=0x0, group=0x0, win_specs=..., win_funcs=..., hidden_group_fields=0x6290000e6787) at /data/bld/11.6-asan/sql/sql_select.cc:964

#24 0x000055d7942cda41 in JOIN::prepare (this=0x6290000e6430, tables_init=0x62d00025aa10, conds_init=0x62d00025b308, og_num=0, order_init=0x0, skip_order_by=false, group_init=0x0, having_init=0x0, proc_param_init=0x0, select_lex_arg=0x62d000258d60, unit_arg=0x62d000258528) at /data/bld/11.6-asan/sql/sql_select.cc:1586

#25 0x000055d7940e2734 in Sql_cmd_delete::prepare_inner (this=0x62d00025b4e8, thd=0x62c0000c0218) at /data/bld/11.6-asan/sql/sql_delete.cc:1712

#26 0x000055d7943c1e12 in Sql_cmd_dml::prepare (this=0x62d00025b4e8, thd=0x62c0000c0218) at /data/bld/11.6-asan/sql/sql_select.cc:34176

#27 0x000055d7943c20e2 in Sql_cmd_dml::execute (this=0x62d00025b4e8, thd=0x62c0000c0218) at /data/bld/11.6-asan/sql/sql_select.cc:34229

#28 0x000055d7941d91aa in mysql_execute_command (thd=0x62c0000c0218, is_called_from_prepared_stmt=true) at /data/bld/11.6-asan/sql/sql_parse.cc:4403

#29 0x000055d7942853e6 in Prepared_statement::execute (this=0x61900009b598, expanded_query=0x7f1faa9065b0, open_cursor=false) at /data/bld/11.6-asan/sql/sql_prepare.cc:5050

#30 0x000055d794280349 in Prepared_statement::execute_loop (this=0x61900009b598, expanded_query=0x7f1faa9065b0, open_cursor=false, packet=0x0, packet_end=0x0) at /data/bld/11.6-asan/sql/sql_prepare.cc:4427

#31 0x000055d794279802 in mysql_sql_stmt_execute (thd=0x62c0000c0218) at /data/bld/11.6-asan/sql/sql_prepare.cc:3446

#32 0x000055d7941d6833 in mysql_execute_command (thd=0x62c0000c0218, is_called_from_prepared_stmt=false) at /data/bld/11.6-asan/sql/sql_parse.cc:3970

#33 0x000055d7941f14f4 in mysql_parse (thd=0x62c0000c0218, rawbuf=0x6290000e6238 "EXECUTE stmt", length=12, parser_state=0x7f1faa9079f0) at /data/bld/11.6-asan/sql/sql_parse.cc:7885

#34 0x000055d7941c8630 in dispatch_command (command=COM_QUERY, thd=0x62c0000c0218, packet=0x629000253219 "EXECUTE stmt", packet_length=12, blocking=true) at /data/bld/11.6-asan/sql/sql_parse.cc:1892

#35 0x000055d7941c5344 in do_command (thd=0x62c0000c0218, blocking=true) at /data/bld/11.6-asan/sql/sql_parse.cc:1405

#36 0x000055d7946b2f80 in do_handle_one_connection (connect=0x608000003638, put_in_cache=true) at /data/bld/11.6-asan/sql/sql_connect.cc:1448

#37 0x000055d7946b293c in handle_one_connection (arg=0x6080000035b8) at /data/bld/11.6-asan/sql/sql_connect.cc:1350

#38 0x000055d79533c7e4 in pfs_spawn_thread (arg=0x617000005b98) at /data/bld/11.6-asan/storage/perfschema/pfs.cc:2198

#39 0x00007f1fb5ea8044 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:442

#40 0x00007f1fb5f2861c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81