Server crashes in check_grant upon invoking function with userstat enabled

SET @userstat.save= @@userstat;

CREATE FUNCTION f() RETURNS INT RETURN (SELECT 1 FROM performance_schema.threads);

SET GLOBAL userstat= 1;

SELECT f() FROM INFORMATION_SCHEMA.TABLE_STATISTICS;

# Cleanup

SET GLOBAL userstat= @userstat.save;

#3  <signal handler called>

#4  0x000055eb50b228b8 in check_grant (thd=0x7f03e0000d90, want_access=1, tables=0x7f03f0245ce0, any_combination_will_do=true, number=4294967295, no_errors=true) at /data/src/10.2/sql/sql_acl.cc:7659

#5  0x000055eb51542e79 in table_stats_fill (thd=0x7f03e0000d90, tables=0x7f03e0013c20, cond=0x0) at /data/src/10.2/plugin/userstat/table_stats.cc:34

#6  0x000055eb50c623cc in get_schema_tables_result (join=0x7f03e0017d80, executed_place=PROCESSED_BY_JOIN_EXEC) at /data/src/10.2/sql/sql_show.cc:8472

#7  0x000055eb50bfb66b in JOIN::exec_inner (this=0x7f03e0017d80) at /data/src/10.2/sql/sql_select.cc:3606

#8  0x000055eb50bfad22 in JOIN::exec (this=0x7f03e0017d80) at /data/src/10.2/sql/sql_select.cc:3437

#9  0x000055eb50bfbefc in mysql_select (thd=0x7f03e0000d90, tables=0x7f03e0013c20, wild_num=0, fields=..., conds=0x0, og_num=0, order=0x0, group=0x0, having=0x0, proc_param=0x0, select_options=2684619520, result=0x7f03e0017d60, unit=0x7f03e0004988, select_lex=0x7f03e00050c8) at /data/src/10.2/sql/sql_select.cc:3840

#10 0x000055eb50bf005e in handle_select (thd=0x7f03e0000d90, lex=0x7f03e00048c8, result=0x7f03e0017d60, setup_tables_done_option=0) at /data/src/10.2/sql/sql_select.cc:361

#11 0x000055eb50bba67f in execute_sqlcom_select (thd=0x7f03e0000d90, all_tables=0x7f03e0013c20) at /data/src/10.2/sql/sql_parse.cc:6274

#12 0x000055eb50bb11f3 in mysql_execute_command (thd=0x7f03e0000d90) at /data/src/10.2/sql/sql_parse.cc:3585

#13 0x000055eb50bbe43b in mysql_parse (thd=0x7f03e0000d90, rawbuf=0x7f03e00126f8 "SELECT f() FROM INFORMATION_SCHEMA.TABLE_STATISTICS", length=51, parser_state=0x7f03f02475f0, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:7794

#14 0x000055eb50bac664 in dispatch_command (command=COM_QUERY, thd=0x7f03e0000d90, packet=0x7f03e0008b51 "SELECT f() FROM INFORMATION_SCHEMA.TABLE_STATISTICS", packet_length=51, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:1827

#15 0x000055eb50bab15f in do_command (thd=0x7f03e0000d90) at /data/src/10.2/sql/sql_parse.cc:1381

#16 0x000055eb50d05c94 in do_handle_one_connection (connect=0x55eb53721110) at /data/src/10.2/sql/sql_connect.cc:1336

#17 0x000055eb50d059f9 in handle_one_connection (arg=0x55eb53721110) at /data/src/10.2/sql/sql_connect.cc:1241

#18 0x000055eb5152ed10 in pfs_spawn_thread (arg=0x55eb53704580) at /data/src/10.2/storage/perfschema/pfs.cc:1869

#19 0x00007f03f65fe609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#20 0x00007f03f61d8293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95