| 2007-11-17 10:48:14 |
Matt Zimmerman |
description |
Binary package hint: samba
Running 6.06 LTS, I did a routine update/upgrade and now Samba will no longer start. The system sends this email:
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The Samba 'panic action' script, /usr/share/samba/panic-action,
was called for pid 8377 (/usr/sbin/nmbd).
Below is a backtrace for this process generated with gdb, which shows
the state of the program at the time the error occurred.
If the problem persists, you are encouraged to first install the
samba-dbg package which contains the debugging symbols for samba
binaries. Then, submit the provided information as a bug report to Ubuntu.
For information about the procedure for submitting bug reports, please
see http://www.ubuntulinux.org/support/bugs/document_view
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1211996480 (LWP 8377)]
0xffffe410 in __kernel_vsyscall ()
#0 0xffffe410 in __kernel_vsyscall ()
#1 0xb7db7933 in waitpid () from /lib/tls/i686/cmov/libc.so.6
#2 0xb7d613c9 in strtold_l () from /lib/tls/i686/cmov/libc.so.6
#3 0x080cc403 in smb_panic2 (
why=0xfffffe00 <Address 0xfffffe00 out of bounds>, decrement_pid_count=1)
at lib/util.c:1545
#4 0x080cc525 in smb_panic (why=0xfffffe00 <Address 0xfffffe00 out of bounds>)
at lib/util.c:1506
#5 0x080b8624 in push_ascii (dest=0xfffffe00,
src=0x818bd00 "ns1 server (Samba, Ubuntu)", dest_len=4294967295, flags=5)
at lib/charcnv.c:844
#6 0x08073c63 in send_announcement (subrec=0x81897d8,
announce_type=<value optimized out>, from_name=0x818bbfc "NS1",
to_name=0x0, to_type=0, to_ip={s_addr = 0}, announce_interval=-1078055348,
server_name=0xfffffe00 <Address 0xfffffe00 out of bounds>,
server_type=104963,
server_comment=0xfffffe00 <Address 0xfffffe00 out of bounds>)
at nmbd/nmbd_sendannounce.c:119
#7 0x08073e2a in send_host_announcement (subrec=0x81897d8, work=0x8189910,
servrec=0x818bbf0) at nmbd/nmbd_sendannounce.c:210
#8 0x08074167 in announce_my_server_names (t=1195196102)
at nmbd/nmbd_sendannounce.c:257
#9 0x08062b7d in main (argc=-512, argv=0xbfbe34e4) at nmbd/nmbd.c:449
--------------------------------------------------------------------------------
From /var/log/samba/log.nmbd:
[2007/11/15 22:55:02, 0] nmbd/nmbd.c:main(727)
Netbios nameserver version 3.0.22 started.
Copyright Andrew Tridgell and the Samba Team 1992-2006
[2007/11/15 22:55:02, 0] lib/util.c:smb_panic2(1544)
smb_panic(): calling panic action [/usr/share/samba/panic-action 8377]
[2007/11/15 22:55:02, 0] lib/util.c:smb_panic2(1552)
smb_panic(): action returned status 0
[2007/11/15 22:55:02, 0] lib/util.c:smb_panic2(1554)
PANIC: push_ascii - dest_len == -1
[2007/11/15 22:55:02, 0] lib/util.c:smb_panic2(1562)
BACKTRACE: 9 stack frames:
#0 /usr/sbin/nmbd(smb_panic2+0x78) [0x80cc328]
#1 /usr/sbin/nmbd(smb_panic+0x19) [0x80cc525]
#2 /usr/sbin/nmbd(push_ascii+0xca) [0x80b8624]
#3 /usr/sbin/nmbd [0x8073c63]
#4 /usr/sbin/nmbd [0x8073e2a]
#5 /usr/sbin/nmbd(announce_my_server_names+0xbc) [0x8074167]
#6 /usr/sbin/nmbd(main+0x4ec) [0x8062b7d]
#7 /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xd2) [0xb7d40ea2]
#8 /usr/sbin/nmbd [0x80614a1]
--------------------------------------------------------------------------------
/etc/samba/smb.conf (comments removed):
[global]
workgroup = WORKGROUP
server string = %h server (Samba, Ubuntu)
dns proxy = no
interfaces = 127.0.0.0/8 eth0
bind interfaces only = true
log file = /var/log/samba/log.%m
max log size = 1000
syslog = 0
panic action = /usr/share/samba/panic-action %d
security = user
encrypt passwords = true
passdb backend = tdbsam
obey pam restrictions = yes
invalid users = root
passwd program = /usr/bin/passwd %u
passwd chat = *Enter\snew\sUNIX\spassword:* %n\n *Retype\snew\sUNIX\spassword:* %n\n *password\supdated\ssuccessfully* .
load printers = yes
printing = cups
printcap name = cups
socket options = TCP_NODELAY
[printers]
comment = All Printers
browseable = yes
path = /tmp
printable = yes
public = yes
writable = no
create mode = 0700
[print$]
comment = Printer Drivers
path = /var/lib/samba/printers
browseable = yes
read only = yes
guest ok = yes
-------------------------------------------------------------------------------- |
A security update deployed with USN 544-1 caused a regression which may prevent the Samba service from starting in some configurations.
The security issue fixed is not believed to be serious (denial of service only), and so it is recommended that users do not install the update at this time due to the risk of regression. Further downloads of the affected files from the security archive have been disabled for this reason.
The security team is preparing a new update to fix the regression, and more information will be posted here when it is available. |
|
| 2007-11-17 10:52:48 |
Matt Zimmerman |
description |
A security update deployed with USN 544-1 caused a regression which may prevent the Samba service from starting in some configurations.
The security issue fixed is not believed to be serious (denial of service only), and so it is recommended that users do not install the update at this time due to the risk of regression. Further downloads of the affected files from the security archive have been disabled for this reason.
The security team is preparing a new update to fix the regression, and more information will be posted here when it is available. |
A security update deployed with USN 544-1 caused a regression which may prevent the Samba service from starting in some configurations. The symptom of this regression is a segmentation fault when the nmbd daemon starts. If you are affected by the regression, available workarounds include:
* Revert to the old version of the samba package, using the following command: sudo apt-get install samba=3.0.26a-1ubuntu2
* Modify clients to use the cifs filesystem (e.g. in /etc/fstab) in place of the deprecated smbfs filesystem
The security issue fixed is not believed to be serious (denial of service only), and so it is recommended that users do not install the update at this time due to the risk of regression. Further downloads of the affected files from the security archive have been disabled for this reason.
The security team is preparing a new update to fix the regression, and more information will be posted here when it is available. |
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