[Pkg-shadow-devel] Bug#480930: running su as root gets stuck

[Nicolas François]

Hello Harald,


On Tue, May 13, 2008 at 08:50:12AM +0200, nicolas.francois at centraliens.net wrote:
> On Tue, May 13, 2008 at 07:20:44AM +0200, harald.dunkel at t-online.de wrote:
> > Nicolas François wrote:
> >>
> >> Do you have some indications in syslog (/var/log/syslog,
> >> /var/log/auth.log) ?
> >>
> >
> > auth.log says:
> >
> > May 13 07:16:14 pluto su[4217]: PAM unable to dlopen(/lib/security/pam_usb.so)
> > May 13 07:16:14 pluto su[4217]: PAM [error: /lib/security/pam_usb.so: cannot open shared object file: No such file or directory]
> > May 13 07:16:14 pluto su[4217]: PAM adding faulty module: /lib/security/pam_usb.so
> > May 13 07:16:14 pluto su[4217]: Successful su for root by root
> > May 13 07:16:14 pluto su[4217]: + pts/3 root:root
> > May 13 07:16:14 pluto su[4217]: pam_env(su:session): Unable to open env file: /etc/default/locale: No such file or directory
> > May 13 07:16:14 pluto su[4217]: pam_unix(su:session): session opened for user root by harri(uid=0)
> >
> > The other log files haven't changed.
> >
> > Do you think its a problem with pam?
> 
> It looks like a configuration error.
> It seems your configuration file mention the pam_usb module, but this
> module is not installed.
> 
> Is the libpam-usb package installed (dpkg -l libpam-usb)?

Did you checked if libpam-usb is installed?

Also could you send you PAM configuration file for su (/etc/pam.d/su), and
the files included by that file (probably /etc/pam.d/common-auth,
/etc/pam.d/common-session, /etc/pam.d/common-password, and
/etc/pam.d/common-account)

Can you check if /lib/security/pam_usb.so exists?


Note: I did not understand you messages:
> PS: I kicked auto pam_usb and ran update-locale: No change.

and 

> I would agree that its a problem with the kernel. Moving back to
> 2.6.24.4 su doesn't get stuck. And for 2.6.25.3 su gets stuck
> about some stty commands in root's .bashrc.
>
> Surely "login" is out of the loop.

Did you meant that it isn't a bug in su?

-- 
Nekral