[Pkg-samba-maint] Bug#602281: libpam-smbpass: postinst is empty

[Sam Morris]

Package: libpam-smbpass
Version: 2:3.5.6~dfsg-1+bpo50+1
Severity: grave
Justification: prevents package configuration

When upgrading this morning:

Setting up libpam-smbpass (2:3.5.6~dfsg-1+bpo50+1) ...
dpkg (subprocess): unable to execute installed post-installation script
(/var/lib/dpkg/info/libpam-smbpass.postinst): Exec format error
dpkg: error processing libpam-smbpass (--configure):
 subprocess installed post-installation script returned error exit
 status 2

The postinst and prerm scripts are both empty!

Here is the file that apt retrieved from backports.debian.org and its
sha1 hash:

734bc3b444715f2c2789f81b778a761e7b2ae80b libpam-smbpass_2%3a3.5.6~dfsg-1+bpo50+1_amd64.deb

-- System Information:
Debian Release: squeeze/sid
  APT prefers stable
  APT policy: (550, 'stable'), (530, 'testing'), (520, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-bpo.5-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages libpam-smbpass depends on:
ii  libc6             2.11.2-6+squeeze1      Embedded GNU C Library: Shared lib
ii  libcap2           2.11-2                 support for getting/setting POSIX.
ii  libldap-2.4-2     2.4.11-1+lenny2        OpenLDAP libraries
ii  libpam0g          1.1.1-6.1              Pluggable Authentication Modules l
ii  libtalloc2        2.0.1-1                hierarchical pool based memory all
ii  libwbclient0      2:3.5.6~dfsg-1+bpo50+1 Samba winbind client library
ii  samba-common      2:3.5.6~dfsg-1+bpo50+1 common files used by both the Samb

libpam-smbpass recommends no packages.

Versions of packages libpam-smbpass suggests:
ii  samba             2:3.5.6~dfsg-1+bpo50+1 SMB/CIFS file, print, and login se

-- no debconf information