In MariaDB before 10.9.2, compresswrite in extra/mariabackup/dscompress.cc does not release data_mutex upon a stream write failure, which allows local users to trigger a deadlock.
{
"cpes": [
"cpe:2.3:a:mariadb:mariadb:*:*:*:*:*:*:*:*"
],
"severity": "Medium"
}