Public bug reported: I have both Ubuntu 22.04 and 24.04 systems that are exhibiting the following issue. It's been going on for some time, but was brought to the forefront by way of an upgrade of our CheckMK monitoring server, which is reporting that the SystemD sockets for sssd-nss, sssd-pac, sssd-pam, sssd-pam-priv, and where configured, for docker, are all failed.
"systemctl list-units --type=socket"|grep failed confirms it: root@hostname:/var/log/sssd# systemctl list-units --type=socket|grep failed ● docker.socket loaded failed failed Docker Socket for the API ● sssd-nss.socket loaded failed failed SSSD NSS Service responder socket ● sssd-pac.socket loaded failed failed SSSD PAC Service responder socket ● sssd-pam-priv.socket loaded failed failed SSSD PAM Service responder private socket ● sssd-pam.socket loaded failed failed SSSD PAM Service responder socket Attempting to restart the socket also fails. Looking specifically at the /var/log/sssd/sssd_nss.log, I see tons of entries like (2026-02-12 10:26:01): [nss] [cache_req_data_set_hybrid_lookup] (0x0020): [CID#516] cache_req_data should never be NULL * ... skipping repetitive backtrace ... preceding that, it looks like the underlying issue is related to sssd actions being taken on behalf of accounts that aren't in the authentication source - in our case, AD. I'm seeing this for usernames 'ntp', 'ntopng', '_chrony', '_apt', 'avahi', 'owamp', 'perfsonar', 'wwww-data', and more. I'm logging this as a bug specifically in sssd, as this specific issue is addressed in https://bugzilla.redhat.com/show_bug.cgi?id=2098654, with an upstream patch https://github.com/SSSD/sssd/pull/6291 I do not see the same error on my RHEL7/8/9 systems ** Affects: sssd (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2141714 Title: sssd log spam To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sssd/+bug/2141714/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
