BUG #18315: Segmentation fault on connection (repmgr, psql)

The following bug has been logged on the website:

Bug reference: 18315
Logged by: Ivan Kalafatić
Email address: ikalafat(at)gmail(dot)com
PostgreSQL version: 16.1
Operating system: Debian 12
Description:

Hi,

I am intermittently getting following errors (taken from var/log/syslog), on
pg_basebackup, repmgrd and psql (so far)

repmgr[1147164] general protection fault ip:7fb9950981b5 sp:7ffecf4418f8
error:0 in libkrb5.so.3.3[7fb99506a000+5f000]
also this:

pg_basebackup[4191295] general protection fault ip:7f344e9771b5
sp:7ffe8c625c28 error:0 in libkrb5.so.3.3[7f344e949000+5f000]

and this

psql[4045720] general protection fault ip:7f89130931b5 sp:7fffd40a0268
error:0 in libkrb5.so.3.3[7f8913065000+5f000]

Looks like that the error is related to GSSAPI/kerberos auth? I have tried
replacing "host" type within pg_hba.conf to "hostnogssenc", but problem
persists.

Running Debian 12 with all updates, repmgr, timescaledb extensions (fresh
install). PostgreSQL 16.1 (Debian 16.1-1.pgdg120+1)
Looks like the server itself is not affected (isn't crashing etc).

Is there anything that I could do to disable GSSAPI/kerberos and/or
circumvent this issue? Also, how can I provide more info for this issue to
be resolved.

Thanks.