openssh bugs - Jun 2025 - [Bug 3844] New: syslogin_perform_logout: logout() returned an error

https://bugzilla.mindrot.org/show_bug.cgi?id=3844

            Bug ID: 3844
           Summary: syslogin_perform_logout: logout() returned an error
           Product: Portable OpenSSH
           Version: 10.0p2
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: minor
          Priority: P5
         Component: sshd
          Assignee: unassigned-bugs at mindrot.org
          Reporter: srinivas.uppoju at gmail.com

The sshd-session module is throwing below errors when user logs out of
the system.
/var/log/wtmp and /var/log/lastlog files are removed in the latest
version of linux/debian but the sshd modules tries to read/write from
these files when user logs out.

./auth.log:Jun 23 06:19:18 ims-debian-server sshd-session[25834]:
syslogin_perform_logout: logout() returned an error
./auth.log:Jun 23 06:36:43 ims-debian-server sshd-session[27776]:
syslogin_perform_logout: logout() returned an error
./auth.log:Jun 23 07:08:41 ims-debian-server sshd-session[29566]:
syslogin_perform_logout: logout() returned an error
./auth.log:Jun 23 09:43:05 ims-debian-server sshd-session[29701]:
syslogin_perform_logout: logout() returned an error
./auth.log:Jun 23 10:20:12 ims-debian-server sshd-session[30442]:
syslogin_perform_logout: logout() returned an error
./auth.log:Jun 23 10:47:33 ims-debian-server sshd-session[32117]:
syslogin_perform_logout: logout() returned an error

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https://bugzilla.mindrot.org/show_bug.cgi?id=3844

Damien Miller <djm at mindrot.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |djm at mindrot.org

--- Comment #1 from Damien Miller <djm at mindrot.org> ---
Have you reported this to Debian? sshd calls logout(3) for this
processing, which is a standard system interface. If the system no
longer supports the files behind this interface then the system should
make logout(3) handle this situation gracefully.

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https://bugzilla.mindrot.org/show_bug.cgi?id=3844

--- Comment #2 from srinivas.uppoju at gmail.com ---
Yes, Created a bug with debian system as well, if this needs to be
fixed from debian side we can close this bug.

Thanks.

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