[buildd-tools-devel] Bug#567416: schroot: PAM authentication conversation handler appears broken

[Roger Leigh]

Package: schroot
Version: 1.4.0-1
Severity: important

Expected password prompt when switching users, but instead get PAM
conversation failure.

% schroot -c sid -u <user>
[...]
D(2): Creating schroot session
D(2): auth uid = 1,000, gid = 1,000
D(2): auth uid = 1,000, gid = 1,000
D(2): auth uid = 1,002, gid = 1,003
D(1): pam_start OK
D(2): In users: 0
In groups: 1
In root-users: 0
In root-groups: 1
D(1): PAM conversation hook started
D(2): pam_authenticate FAIL
D(1): pam_end OK
E: Authentication failed: Authentication failure

Need to debug what's going on in pam_auth_conv_tty causing it to
fail.


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

Kernel: Linux 2.6.32-trunk-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages schroot depends on:
ii  libboost-filesystem1.40.0    1.40.0-6+b1 filesystem operations (portable pa
ii  libboost-program-options1.40 1.40.0-6+b1 program options library for C++
ii  libboost-regex1.40.0         1.40.0-6+b1 regular expression library for C++
ii  libboost-system1.40.0        1.40.0-6+b1 Operating system (e.g. diagnostics
ii  libc6                        2.10.2-5    Embedded GNU C Library: Shared lib
ii  libgcc1                      1:4.4.3-1   GCC support library
ii  liblockdev1                  1.0.3-1.3   Run-time shared library for lockin
ii  libpam0g                     1.1.0-4     Pluggable Authentication Modules l
ii  libstdc++6                   4.4.3-1     The GNU Standard C++ Library v3
ii  libuuid1                     2.16.2-0    Universally Unique ID library
ii  schroot-common               1.4.0-1     common files for schroot

schroot recommends no packages.

Versions of packages schroot suggests:
pn  aufs-modules | unionfs-module <none>     (no description available)
ii  debootstrap                   1.0.20     Bootstrap a basic Debian system
ii  lvm2                          2.02.54-1  The Linux Logical Volume Manager
ii  unzip                         6.0-1      De-archiver for .zip files

-- no debconf information