[Bug 1644428] Re: Unable to log in with AD account after update

[Robert Euhus]

I think the error message in the log is misleading. the problem is
definitely not that /lib/security/pam_winbind.so is missing, since this
file did not exist in 4.3.11+dfsg-0ubuntu0.14.04.1 which worked. The
module is in the same place as before: /lib/x86_64-linux-
gnu/security/pam_winbind.so

But instead I think that something went wrong with the statically linking patch which was the only change introduced there:
http://launchpadlibrarian.net/294673937/samba_2%3A4.3.11+dfsg-0ubuntu0.14.04.1_2%3A4.3.11+dfsg-0ubuntu0.14.04.2.diff.gz

Regards,
Robert Euhus

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https://bugs.launchpad.net/bugs/1644428

Title:
  Unable to log in with AD account after update

Status in samba package in Ubuntu:
  Confirmed

Bug description:
  After performing a system update one of my users was no longer able to
  authenticate against Active Directory. This is on a Ubuntu 14.04 on
  amd64.

  The error in /var/log/auth.log was:

  Nov 24 15:08:06 haggerstone lightdm: PAM unable to
  dlopen(pam_winbind.so): /lib/security/pam_winbind.so: cannot open
  shared object file: No such file or directory

  I tried rebooting thinking something broke during the update, but I
  got the same error.

  I checked against my PC and saw that there were updates pending for
  the samba packages. I used the version numbers on my PC to perform a
  downgrade to 2:4.3.11+dfsg-0ubuntu0.14.04.1 and the problem went away.

  The affected version is 2:4.3.11+dfsg-0ubuntu0.14.04.2

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