UBSAN: runtime error: null pointer passed as argument 2, which is declared to never be null in my_strnncoll_binary on DELETE

CREATE TABLE t (c1 SET('1','2','3'),c2 BINARY);

INSERT INTO t VALUES (0,0);

DELETE FROM t WHERE c2<c1;

/test/11.0_dbg_san/strings/ctype-bin.c:89:12: runtime error: null pointer passed as argument 2, which is declared to never be null

/test/11.0_dbg_san/strings/ctype-bin.c:89:12: runtime error: null pointer passed as argument 2, which is declared to never be null

    #0 0x5575bfed62c1 in my_strnncoll_binary /test/11.0_dbg_san/strings/ctype-bin.c:89

    #1 0x5575bfed62fc in my_strnncollsp_binary /test/11.0_dbg_san/strings/ctype-bin.c:128

    #2 0x5575bc6b37a3 in charset_info_st::strnncollsp(char const*, unsigned long, char const*, unsigned long) const /test/11.0_dbg_san/include/m_ctype.h:1018

    #3 0x5575bc6b37a3 in sortcmp(Binary_string const*, Binary_string const*, charset_info_st const*) /test/11.0_dbg_san/sql/sql_string.cc:868

    #4 0x5575bda5602f in Arg_comparator::compare_string() /test/11.0_dbg_san/sql/item_cmpfunc.cc:777

    #5 0x5575bda55b76 in Arg_comparator::compare() /test/11.0_dbg_san/sql/item_cmpfunc.h:103

    #6 0x5575bda55b76 in Item_func_lt::val_int() /test/11.0_dbg_san/sql/item_cmpfunc.cc:1831

    #7 0x5575bbdc6102 in SQL_SELECT::skip_record(THD*) /test/11.0_dbg_san/sql/opt_range.h:1913

    #8 0x5575bbdc6102 in record_should_be_deleted /test/11.0_dbg_san/sql/sql_delete.cc:221

    #9 0x5575bbde138d in mysql_delete(THD*, TABLE_LIST*, Item*, SQL_I_List<st_order>*, unsigned long long, unsigned long long, select_result*) /test/11.0_dbg_san/sql/sql_delete.cc:819

    #10 0x5575bc0bb3e4 in mysql_execute_command(THD*, bool) /test/11.0_dbg_san/sql/sql_parse.cc:4811

    #11 0x5575bc0db5e6 in mysql_parse(THD*, char*, unsigned int, Parser_state*) /test/11.0_dbg_san/sql/sql_parse.cc:7999

    #12 0x5575bc0eb37a in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool) /test/11.0_dbg_san/sql/sql_parse.cc:1894

    #13 0x5575bc0f917f in do_command(THD*, bool) /test/11.0_dbg_san/sql/sql_parse.cc:1407

    #14 0x5575bcabd459 in do_handle_one_connection(CONNECT*, bool) /test/11.0_dbg_san/sql/sql_connect.cc:1416

    #15 0x5575bcabe974 in handle_one_connection /test/11.0_dbg_san/sql/sql_connect.cc:1318

    #16 0x149656c64b42 in start_thread nptl/pthread_create.c:442

    #17 0x149656cf69ff  (/lib/x86_64-linux-gnu/libc.so.6+0x1269ff)

Compiled with GCC >=7.5.0 (I use GCC 11.3.0) and:

    -DWITH_ASAN=ON -DWITH_ASAN_SCOPE=ON -DWITH_UBSAN=ON -DWITH_RAPID=OFF -DWSREP_LIB_WITH_ASAN=ON

Set before execution:

    export ASAN_OPTIONS=quarantine_size_mb=512:atexit=0:detect_invalid_pointer_pairs=3:dump_instruction_bytes=1:abort_on_error=1:allocator_may_return_null=1