MariaDB Server before 10.7 is vulnerable to Denial of Service. While executing the plugin/server_audit/server_audit.c method log_statement_ex, the held lock lock_bigbuffer is not released correctly, which allows local users to trigger a denial of service due to the deadlock.
https://security.netapp.com/advisory/ntap-20220707-0006/
https://jira.mariadb.org/browse/MDEV-26556?filter=-2
https://github.com/MariaDB/server/commit/d627d00b13ab2f2c0954ea7b77202470cb102944