[Pkg-samba-maint] Bug#468296: samba: Samba segfaults when domain client logs off (using roaming profiles)

[Cats&Dogs Support]

Package: samba
Version: 3.0.24-6etch9
Severity: normal


We are using Samba as a DC with roaming profiles enabled.
Currently, there is only one computer actually joined to this domain. If that computer is shut down (and
writes its profile to the server), Samba seems to segfault with the following:

----

The Samba 'panic action' script, /usr/share/samba/panic-action,
was called for PID 22894 (/usr/sbin/smbd).

This means there was a problem with the program, such as a segfault.
Below is a backtrace for this process generated with gdb, which shows
the state of the program at the time the error occurred. The Samba log
files may contain additional information about the problem.

If the problem persists, you are encouraged to first install the
samba-dbg package, which contains the debugging symbols for the Samba
binaries. Then submit the provided information as a bug report to
Debian. For information about the procedure for submitting bug reports,
please see http://www.debian.org/Bugs/Reporting or the reportbug(1)
manual page.

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread 47458475908736 (LWP 22894)]
0x00002b29c9368715 in waitpid () from /lib/libc.so.6
#0 0x00002b29c9368715 in waitpid () from /lib/libc.so.6
#1 0x00002b29c9311721 in strtold_l () from /lib/libc.so.6
#2 0x00000000005d2f8a in smb_panic (why=<value optimized out>)
at lib/util.c:1608
#3 0x00000000005d7838 in assert_uid (ruid=4294967295, euid=1000)
at lib/util_sec.c:102
#4 0x000000000049b16a in become_id (uid=1000, gid=2002) at smbd/sec_ctx.c:57
#5 0x000000000049b2d0 in pop_sec_ctx () at smbd/sec_ctx.c:328
#6 0x0000000000492509 in unbecome_root () at smbd/uid.c:395
#7 0x0000000000600f28 in reply_to_oplock_break_requests (fsp=0x90a790)
at smbd/oplock.c:669
#8 0x00000000004998e7 in close_file (fsp=0x90a790, close_type=NORMAL_CLOSE)
at smbd/close.c:188
#9 0x0000000000477870 in reply_close (conn=0x9286e0, inbuf=0x2b29c7b4f010 "",
outbuf=0x2b29c7b70010 "", size=<value optimized out>,
dum_buffsize=<value optimized out>) at smbd/reply.c:3327
#10 0x00000000004a8e21 in switch_message (type=4, inbuf=0x2b29c7b4f010 "",
outbuf=0x2b29c7b70010 "", size=45, bufsize=131072) at smbd/process.c:991
#11 0x00000000004aa0a0 in smbd_process () at smbd/process.c:1018
#12 0x000000000065c04e in main (argc=20, argv=0x0) at smbd/server.c:1024



-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-fza-028stab051.1-amd64
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)

Versions of packages samba depends on:
ii  deb 1.5.11etch1                          Debian configuration management sy
ii  lib 2.2.41-1                             Access control list shared library
ii  lib 2.4.32-1                             Extended attribute shared library
ii  lib 2.3.6.ds1-13etch4                    GNU C Library: Shared libraries
ii  lib 1.39+1.40-WIP-2006.11.14+dfsg-2etch1 common error description library
ii  lib 1.2.7-4etch2                         Common UNIX Printing System(tm) - 
ii  lib 1.4.4-3                              the GNU TLS library - runtime libr
ii  lib 1.4.4-7etch4                         MIT Kerberos runtime libraries
ii  lib 2.1.30-13.3                          OpenLDAP libraries
ii  lib 0.79-5                               Pluggable Authentication Modules f
ii  lib 0.79-5                               Runtime support for the PAM librar
ii  lib 0.79-5                               Pluggable Authentication Modules l
ii  lib 1.10-3                               lib for parsing cmdline parameters
ii  log 3.7.1-3                              Log rotation utility
ii  lsb 3.1-23.2etch1                        Linux Standard Base 3.1 init scrip
ii  net 4.29                                 Basic TCP/IP networking system
ii  pro 1:3.2.7-3                            /proc file system utilities
ii  sam 3.0.24-6etch9                        Samba common files used by both th
ii  zli 1:1.2.3-13                           compression library - runtime

Versions of packages samba recommends:
pn  smbldap-tools                 <none>     (no description available)

-- debconf information:
  samba/run_mode: daemons
  samba/tdbsam: false
  samba/generate_smbpasswd: true