https://bugs.openldap.org/show_bug.cgi?id=9584
Issue ID: 9584 Summary: cn=config replication ops/refresh should pause server Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: slapd Assignee: bugs@openldap.org Reporter: ondra@mistotebe.net Target Milestone: ---
Looking into this crash: https://git.openldap.org/openldap/openldap/-/jobs/7286
The thread in question is running a plain syncrepl refresh while another thread seems to have done the same. This thread fetched the entryUUID attribute of the 'cn=config' entry as 'a' and in the meantime, that entry has been rewritten, with 'a' presumably cleaned up and returned to the pool, so addressing a->a_nvals[0] is a NULL-dereference now.
This might or might not be related to the fix in ITS#8102.