Bug#909374: sshd: syslogin_perform_logout: logout() returned an error
On Sat, Sep 22, 2018 at 07:39:40PM +0200, Christian Göttsche wrote:
> When I logout from my SELinux enabled machine, I get the following
> error message:
>
> Sep 22 19:23:52 server02 sshd[23234]: syslogin_perform_logout:
> logout() returned an error <---
> Sep 22 19:23:52 server02 sshd[23234]: Received disconnect from
> <myclientip> port 53300:11: disconnected by user
> Sep 22 19:23:52 server02 sshd[23234]: Disconnected from user root
> <myclientip> port 53300
> Sep 22 19:23:52 server02 sshd[23234]: pam_unix(sshd:session): session
> closed for user root
>
> Nothing seems to break but what's the cause of this?
Is it possible that the SELinux profile for sshd is denying it the
ability to write to /var/run/utmp? (I think that's the path.) I don't
use SELinux myself, but perhaps it has some debugging tools that would
make it possible to see what accesses have been denied?
> Maybe the error message
> [https://sources.debian.org/src/openssh/1:7.8p1-1/loginrec.c/#L1433]
> can be improved?
Unfortunately logout() doesn't give sshd a way to get any more
information that it could put in the error message; it just returns 1 on
success and 0 on failure.
--
Colin Watson [cjwatson@debian.org]
Reply to: