Crash seen during handling of replication filter

There have been some issues seen in the replication filter in the galera cluster in 11.4.7.

There was another issue seen and raised as a bug MDEV-38511. This issue is not similar to that, hence created a new bug for this to be given its own attention. We couldn't capture the core dump but the logs shows the stack trace.

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2026-03-08 17:54:56 3 [Note] WSREP: SST received
2026-03-08 17:54:56 3 [Note] WSREP: Server status change joiner -> initializing
2026-03-08 17:54:56 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2026-03-08 17:54:56 0 [Note] InnoDB: Using transactional memory
2026-03-08 17:54:56 0 [Note] InnoDB: Number of transaction pools: 1
2026-03-08 17:54:56 0 [Note] InnoDB: Using crc32 + pclmulqdq instructions
2026-03-08 17:54:56 0 [Note] mariadbd: O_TMPFILE is not supported on /mariadb/tmp (disabling future attempts)
2026-03-08 17:54:56 0 [Warning] mariadbd: io_uring_queue_init() failed with ENOSYS: check seccomp filters, and the kernel version (newer than 5.1 required)
2026-03-08 17:54:56 0 [Warning] InnoDB: liburing disabled: falling back to innodb_use_native_aio=OFF
2026-03-08 17:54:56 0 [Note] InnoDB: innodb_buffer_pool_size_max=2048m, innodb_buffer_pool_size=2048m
2026-03-08 17:54:57 0 [Note] InnoDB: Completed initialization of buffer pool
2026-03-08 17:54:57 0 [Note] InnoDB: Buffered log writes (block size=512 bytes)
2026-03-08 17:54:57 0 [Note] InnoDB: End of log at LSN=748839
2026-03-08 17:54:57 0 [Note] InnoDB: Resizing redo log from 12.016KiB to 128.000MiB; LSN=748839
2026-03-08 17:54:57 0 [Note] InnoDB: Buffered log writes (block size=512 bytes)
2026-03-08 17:54:57 0 [Note] InnoDB: Opened 3 undo tablespaces
2026-03-08 17:54:57 0 [Note] InnoDB: 128 rollback segments in 3 undo tablespaces are active.
2026-03-08 17:54:57 0 [Note] InnoDB: Setting file './ibtmp1' size to 12.000MiB. Physically writing the file full; Please wait ...
2026-03-08 17:54:57 0 [Note] InnoDB: File './ibtmp1' size is now 12.000MiB.
2026-03-08 17:54:57 0 [Note] InnoDB: log sequence number 748839; transaction id 527
2026-03-08 17:54:57 0 [Note] Plugin 'FEEDBACK' is disabled.
2026-03-08 17:54:57 0 [Note] InnoDB: Loading buffer pool(s) from /mariadb/data/ib_buffer_pool
2026-03-08 17:54:57 0 [Note] InnoDB: Cannot open '/mariadb/data/ib_buffer_pool' for reading: No such file or directory
2026-03-08 17:54:57 0 [Warning] 'innodb-log-files-in-group' was removed. It does nothing now and exists only for compatibility with old my.cnf files.
2026-03-08 17:54:57 0 [Warning] 'innodb-file-format' was removed. It does nothing now and exists only for compatibility with old my.cnf files.
2026-03-08 17:54:57 0 [Note] Recovering after a crash using mysql-bin
2026-03-08 17:54:57 0 [Note] Starting table crash recovery...
2026-03-08 17:54:57 0 [Note] Crash table recovery finished.
2026-03-08 17:54:58 0 [Note] Server socket created on IP: '0.0.0.0'.
2026-03-08 17:54:59 0 [Note] mariadbd: Event Scheduler: Loaded 0 events
2026-03-08 17:54:59 0 [Note] WSREP: wsrep_init_schema_and_SR (nil)
2026-03-08 17:54:59 0 [Note] WSREP: Server initialized
2026-03-08 17:54:59 0 [Note] WSREP: Server status change initializing -> initialized
2026-03-08 17:54:59 3 [Note] WSREP: Recovered position from storage: 5a2620d1-1a96-11f1-902d-e24838fe69db:231
2026-03-08 17:54:59 3 [Note] WSREP: Server status change initialized -> joined
2026-03-08 17:54:59 7 [Note] WSREP: Starting applier thread 7
260308 17:54:59 [ERROR] mariadbd got signal 11 ;
Sorry, we probably made a mistake, and this is a bug.

Your assistance in bug reporting will enable us to fix this for the next release.
To report this bug, see https://mariadb.com/kb/en/reporting-bugs about how to report
a bug on https://jira.mariadb.org/.

Please include the information from the server start above, to the end of the
information below.

Server version: 11.4.7-MariaDB-log source revision: 118cfcf82107188f2295631193658b2ef94f4f3f

WSREP: Suppressing further logging
WSREP: Shutting down network communications

The information page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mariadbd/
contains instructions to obtain a better version of the backtrace below.
Following these instructions will help MariaDB developers provide a fix quicker.

Attempting backtrace. Include this in the bug report.
(note: Retrieving this information may fail)

Thread pointer: 0x7f89c4000c58
2026-03-08 17:54:59 6 [Note] WSREP: Starting applier thread 6
stack_bottom = 0x7f8a7c3f6000 thread_stack 0x49000
2026-03-08 17:54:59 0 [Note] mariadbd: ready for connections.
Version: '11.4.7-MariaDB-log' socket: '/var/lib/mysql/mysql.sock' port: 3306 MariaDB Server
2026-03-08 17:54:59 0 [Note] mariadbd (initiated by: unknown): Normal shutdown
2026-03-08 17:54:59 0 [Note] WSREP: Shutdown replication
2026-03-08 17:54:59 0 [Note] WSREP: Server status change joined -> disconnecting
2026-03-08 17:54:59 0 [Note] WSREP: Closing send monitor...
2026-03-08 17:54:59 0 [Note] WSREP: Closed send monitor.
2026-03-08 17:54:59 0 [Note] WSREP: gcomm: terminating thread
2026-03-08 17:54:59 0 [Note] WSREP: gcomm: joining thread
2026-03-08 17:54:59 0 [Note] WSREP: gcomm: closing backend
2026-03-08 17:54:59 3 [Note] WSREP: Recovered view from SST:
id: 5a2620d1-1a96-11f1-902d-e24838fe69db:231
status: primary
protocol_version: 4
capabilities: MULTI-MASTER, CERTIFICATION, PARALLEL_APPLYING, REPLAY, ISOLATION, PAUSE, CAUSAL_READ, INCREMENTAL_WS, UNORDERED, PREORDERED, STREAMING, NBO
final: no
own_index: 0
members(2):
0: 5a24ce7a-1a96-11f1-b371-42f67175fc2d, nrd-db-mariadb-0
1: b070f190-1a96-11f1-a731-3f09c384fa66, nrd-db-mariadb-0

addr2line: 'mariadbd': No such file
Printing to addr2line failed
mariadbd(my_print_stacktrace+0x2e)[0x55d4457ff55e]
mariadbd(handle_fatal_signal+0x305)[0x55d4452d9ea5]
2026-03-08 17:54:59 11 [Note] WSREP: Recovered cluster id 5a2620d1-1a96-11f1-902d-e24838fe69db
/lib64/libc.so.6(+0x3fc30)[0x7f8b772d5c30]
2026-03-08 17:54:59 3 [Note] WSREP: SST received: 5a2620d1-1a96-11f1-902d-e24838fe69db:231
2026-03-08 17:54:59 3 [Note] WSREP: SST succeeded for position 5a2620d1-1a96-11f1-902d-e24838fe69db:231
2026-03-08 17:54:59 2 [Note] WSREP: Installed new state from SST: 5a2620d1-1a96-11f1-902d-e24838fe69db:231
2026-03-08 17:54:59 0 [Note] WSREP: Joiner monitor thread ended with total time 25 sec
2026-03-08 17:54:59 2 [Note] WSREP: Cert. index preload up to 231
2026-03-08 17:54:59 0 [Note] WSREP: ####### IST applying starts with 232
2026-03-08 17:54:59 0 [Note] WSREP: ####### IST current seqno initialized to 130
2026-03-08 17:54:59 0 [Note] WSREP: Receiving IST... 0.0% (0/102 events) complete.
2026-03-08 17:54:59 0 [Note] WSREP: IST preload starting at 130
2026-03-08 17:54:59 0 [Note] WSREP: Service thread queue flushed.
2026-03-08 17:54:59 0 [Note] WSREP: ####### Assign initial position for certification: 00000000-0000-0000-0000-000000000000:129, protocol version: 6
addr2line: 'mariadbd': No such file
mariadbd(_ZN10Rpl_filter26table_rule_ent_hash_to_strEP6StringP7st_hashb+0x40)[0x55d444f7dac0]
mariadbd(Z19copy_filter_settingP10Rpl_filterS0+0xff)[0x55d4451802bf]
mariadbd(_ZN11Master_infoC1EP25st_mysql_const_lex_stringb+0x2dd)[0x55d44518315d]
mariadbd(_ZN27Wsrep_high_priority_serviceC2EP3THD+0x22a)[0x55d44557c79a]
mariadbd(_ZN21Wsrep_applier_serviceC2EP3THD+0x1f)[0x55d44557d26f]
mariadbd(+0xdc2d17)[0x55d44559ad17]
mariadbd(_Z15start_wsrep_THDPv+0x256)[0x55d445589636]
mariadbd(+0xd3eb29)[0x55d445516b29]
/lib64/libc.so.6(+0x8b2ea)[0x7f8b773212ea]
/lib64/libc.so.6(clone+0x44)[0x7f8b773a55f4]

Connection ID (thread ID): 9
Status: NOT_KILLED
Query (0x0): (null)
Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off,hash_join_cardinality=on,cset_narrowing=off,sargable_casefold=on

Writing a core file...
Working directory at /mariadb/data
Resource Limits (excludes unlimited resources):
Limit Soft Limit Hard Limit Units
Max stack size 8388608 unlimited bytes
Max open files 1048576 1048576 files
Max locked memory 65536 65536 bytes
Max pending signals 238913 238913 signals
Max msgqueue size 819200 819200 bytes
Max nice priority 0 0
Max realtime priority 0 0
Core pattern: | /usr/lib/systemd/systemd-coredump %p %u %g %s %t %e
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