Aurora Serverless v2 crashed with signal 11

Hello everyone!

I recently migrated my MariaDB database to Aurora Serverless v2 (3 weeks ago) and today our Aurora restarted by itself at 11:22. I got the log, but I didn't understand what could have been the cause. (Because of the time zone the db hits 14:22, but it's normal).

14:19:34 UTC - mysqld got signal 11 ;
Most likely, you have hit a bug, but this error can also be caused by malfunctioning hardware.
Thread pointer: 0x4000604d2000
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 = 4001070825a7 thread_stack 0x40000
/rdsdbbin/oscar/bin/mysqld(my_print_stacktrace(unsigned char const*, unsigned long)+0x2b) [0x23fac0b]
/rdsdbbin/oscar/bin/mysqld(handle_fatal_signal+0x3db) [0x1262adb]
linux-vdso.so.1(+0x85b) [0x400007d5a85b]
/rdsdbbin/oscar/bin/mysqld(bind_fields(Item*)+0x20) [0x1077e20]
/rdsdbbin/oscar/bin/mysqld(sp_lex_instr::reset_lex_and_exec_core(THD*, unsigned int*, bool)+0x5bb) [0xff3c3b]
/rdsdbbin/oscar/bin/mysqld(sp_lex_instr::validate_lex_and_execute_core(THD*, unsigned int*, bool)+0xe7) [0xff46a7]
/rdsdbbin/oscar/bin/mysqld(sp_head::execute(THD*, bool)+0x3df) [0xfea4df]
/rdsdbbin/oscar/bin/mysqld(sp_head::execute_trigger(THD*, MYSQL_LEX_CSTRING const&, MYSQL_LEX_CSTRING const&, GRANT_INFO*)+0x1c3) [0xfeac43]
/rdsdbbin/oscar/bin/mysqld(Trigger::execute(THD*)+0x97) [0x1189617]
/rdsdbbin/oscar/bin/mysqld(Trigger_chain::execute_triggers(THD*)+0x23) [0x118ac63]
/rdsdbbin/oscar/bin/mysqld(Table_trigger_dispatcher::process_triggers(THD*, enum_trigger_event_type, enum_trigger_action_time_type, bool)+0x4b) [0x11841eb]
/rdsdbbin/oscar/bin/mysqld(fill_record_n_invoke_before_triggers(THD*, COPY_INFO*, mem_root_deque<Item*> const&, mem_root_deque<Item*> const&, TABLE*, enum_trigger_event_type, int, bool, bool*)+0x457) [0x1003017]
/rdsdbbin/oscar/bin/mysqld(Sql_cmd_insert_values::execute_inner(THD*)+0x4a3) [0x16ce2a3]
/rdsdbbin/oscar/bin/mysqld(Sql_cmd_dml::execute(THD*)+0x62f) [0x10de1cf]
/rdsdbbin/oscar/bin/mysqld(mysql_execute_command_internal(THD*, bool)+0x1fef) [0x10805ef]
/rdsdbbin/oscar/bin/mysqld(mysql_execute_command(THD*, bool)+0x18b) [0x108248b]
/rdsdbbin/oscar/bin/mysqld(dispatch_sql_command(THD*, Parser_state*)+0x383) [0x10831c3]
/rdsdbbin/oscar/bin/mysqld(dispatch_command(THD*, COM_DATA const*, enum_server_command)+0x13f3) [0x1084a53]
/rdsdbbin/oscar/bin/mysqld(do_command(THD*)+0x17f) [0x1085a1f]
/rdsdbbin/oscar/bin/mysqld(THD_task::process_connection()+0x183) [0x12505a3]
/rdsdbbin/oscar/bin/mysqld(Thread_pool::worker_loop()+0x1cb) [0x124ee0b]
/rdsdbbin/oscar/bin/mysqld(Thread_pool::worker_launch(void*)+0x23) [0x124efe3]
/rdsdbbin/oscar/bin/mysqld() [0x29421bf]
/lib64/libpthread.so.0(+0x72ab) [0x40000954a2ab]
/lib64/libc.so.6(+0xd5e5b) [0x4000098fae5b]

There are more logs in the following lines that I can bring if necessary.

In my 'Recent Events' from the database instance I got this:

October 26, 2022, 11:22 (UTC-03:00)
DB instance restarted