https://bugs.openldap.org/show_bug.cgi?id=9445

Issue ID: 9445 Summary: ITS#9339/1748ec59a crashes slapd on ip connect in tcpwrappers Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: slapd Assignee: bugs@openldap.org Reporter: grapvar@gmail.com Target Milestone: ---

When openldap is configured with tcpwrappers, servers/slapd/daemon.c`slap_listener() calls:

hosts_ctl("slapd", dnsname != NULL ? dnsname : SLAP_STRING_UNKNOWN, peeraddr, ...

where `peeraddr' must be client ip addr or literal "unknown" string.

Commit [2020-09-06 1748ec59a ITS#9339 Add syncrepl status to cn=monitor] is made so that `peeraddr' contains fixed NULL value.

This causes immediate crash of slapd inside tcpwrappers library when client connects using ip protocol at least on Solaris x86-64.

I did not verify this on linux, but even if slapd doesn't crash on linux, then tcpwrappers do not work as expected anyway.