Certain combining marks cause MariaDB to crash when doing Full-Text searches

SELECT t1.id FROM replies as t1 WHERE MATCH(t1.body) AGAINST ('ciao' IN BOOLEAN MODE);

C͓̙̯͔̩ͅͅi̩̘̜̲a̯̲̬̳̜̖̤o͕͓̜͓̺̖̗,̠̬͚ ̺T͇̲h͈̱e ̬̜D̖o̦̖͔̗͖̩̘c̣̼t̝͉̫̮̗o͉̫̭r̙͎̗.͓̪̥

set names 'utf8mb4';

CREATE TABLE IF NOT EXISTS `replies_test` (

  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,

  `body` text NOT NULL,

  PRIMARY KEY (`id`),

  FULLTEXT KEY `repliesText` (`body`)

) ENGINE=MyISAM  DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

insert into `replies_test` VALUES (1000, 'C͓̙̯͔̩ͅͅi̩̘̜̲a̯̲̬̳̜̖̤o͕͓̜͓̺̖̗,̠̬͚ ̺T͇̲h͈̱e ̬̜D̖o̦̖͔̗͖̩̘c̣̼t̝͉̫̮̗o͉̫̭r̙͎̗.͓̪̥');

SELECT t1.id FROM replies_test as t1 WHERE MATCH(t1.body) AGAINST ('ciao' IN BOOLEAN MODE);

161105 11:38:07 [ERROR] mysqld got signal 11 ;

This could be because you hit a bug. It is also possible that this binary

or one of the libraries it was linked against is corrupt, improperly built,

or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help

diagnose the problem, but since we have already crashed,

something is definitely wrong and this may fail.

Server version: 10.1.18-MariaDB

key_buffer_size=268435456

read_buffer_size=131072

max_used_connections=10

max_threads=182

thread_count=10

It is possible that mysqld could use up to

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 661893 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x0x7f77cbf8c008

Attempting backtrace. You can use the following information to find out

where mysqld died. If you see no messages after this, something went

terribly wrong...

stack_bottom = 0x7f77fcbbd130 thread_stack 0x48400

/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x7f77fd76da6e]

/usr/sbin/mysqld(handle_fatal_signal+0x2d5)[0x7f77fd2938d5]

/lib64/libpthread.so.0(+0xf100)[0x7f77fc8ae100]

/usr/sbin/mysqld(+0xa520da)[0x7f77fd7310da]

/usr/sbin/mysqld(+0xa0b49c)[0x7f77fd6ea49c]

/usr/sbin/mysqld(+0x474765)[0x7f77fd153765]

mysys/stacktrace.c:268(my_print_stacktrace)[0x7f77fd148a99]

myisam/ft_boolean_search.c:842(ft_boolean_read_next)[0x7f77fd1579ad]

sql/sql_class.h:5418(handler::ha_ft_read(unsigned char*))[0x7f77fd169adc]

sql/sql_select.cc:2506(JOIN::exec())[0x7f77fd16bad4]

sql/sql_select.cc:3440(mysql_select(THD*, Item***, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x7f77fd168172]

sql/sql_select.cc:384(handle_select(THD*, LEX*, select_result*, unsigned long))[0x7f77fd168c55]

sql/sql_parse.cc:5896(execute_sqlcom_select)[0x7f77fd107c71]

sql/sql_parse.cc:2961(mysql_execute_command(THD*))[0x7f77fd113faf]

sql/sql_parse.cc:7319(mysql_parse(THD*, char*, unsigned int, Parser_state*))[0x7f77fd117952]

sql/sql_parse.cc:1487(dispatch_command(enum_server_command, THD*, char*, unsigned int))[0x7f77fd11ae2b]

sql/sql_parse.cc:1110(do_command(THD*))[0x7f77fd11b6a9]

sql/sql_connect.cc:1350(do_handle_one_connection(THD*))[0x7f77fd1e219a]

sql/sql_connect.cc:1264(handle_one_connection)[0x7f77fd1e2370]

/lib64/libpthread.so.0(+0x7dc5)[0x7f77fc8a6dc5]

/lib64/libc.so.6(clone+0x6d)[0x7f77facc7ced]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x7f77cb756020): SELECT t1.id FROM tinychan_replies as t1 WHERE MATCH(t1.body) AGAINST ('ciao' IN BOOLEAN MODE)

Connection ID (thread ID): 13

Status: NOT_KILLED