[Pkg-samba-maint] Bug#434372: pam_smbpass.so cause segfault for 'root' user

[Zdenek Kabelac]

Package: libpam-smbpass
Version: 3.0.25b-1+b1
Severity: normal

Hello

On my system I'm using this line in my common-auth pam module:

auth    optional        pam_smbpass.so migrate

and when I try tu use 'su' command to become root and I do
not insert correct root password - then su cause segfaul
(with correct password - there are no problems)

I'm adding gdb output - though I'm not sure how usable
this could be. 

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1210750080 (LWP 5526)]
0xb7dcaf5b in strlen () from /lib/libc.so.6
(gdb) bt
#0  0xb7dcaf5b in strlen () from /lib/libc.so.6
#1  0xb7dbd0b8 in fputs_unlocked () from /lib/libc.so.6
#2  0xb7e2a178 in __vsyslog_chk () from /lib/libc.so.6
#3  0xb7e2a68a in syslog () from /lib/libc.so.6
#4  0x0804c522 in ?? ()
#5  0x00000005 in ?? ()
#6  0x0804db99 in ?? ()
#7  0x0804e520 in ?? ()
#8  0x08050520 in ?? ()
#9  0xb7edb2a0 in ?? ()
#10 0xb7e9dff4 in ?? () from /lib/libc.so.6
#11 0xb7e9f120 in ?? () from /lib/libc.so.6
#12 0x08056448 in ?? ()
#13 0xbfd2fc28 in ?? ()
#14 0xb7dc7e90 in free () from /lib/libc.so.6
#15 0x08049afa in ?? ()
#16 0x0805389d in ?? ()
#17 0x00000000 in ?? ()
(gdb) q


-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)

Kernel: Linux 2.6.20.1
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/bash

Versions of packages libpam-smbpass depends on:
ii  libc6                       2.6-2        GNU C Library: Shared libraries
ii  libcomerr2                  1.40.2-1     common error description library
ii  libkrb53                    1.6.dfsg.1-6 MIT Kerberos runtime libraries
ii  libldap2                    2.1.30-13.4  OpenLDAP libraries
ii  libpam0g                    0.79-4       Pluggable Authentication Modules l
ii  samba-common                3.0.25b-1+b1 Samba common files used by both th

libpam-smbpass recommends no packages.

-- no debconf information