Debian Bug report logs - #408394
umount.cifs: mtab symlink is replaced with regular file

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Message #5 received at submit@bugs.debian.org (full text, mbox, reply):

From: Radu Cristescu <radu.c@plutohome.com>

To: Debian Bug Tracking System <submit@bugs.debian.org>

Subject: umount.cifs: mtab symlink is replaced with regular file

Date: Thu, 25 Jan 2007 17:44:32 +0200

Package: smbfs
Version: 3.0.23d-4
Severity: grave

umount.cifs removes /etc/mtab even if it's a symlink to /proc/mounts
and writes a regular file instead

I'm setting the Severity to "grave" because I think losing a symlink
can be considered "data loss" (the symlink is "data") and using a
regular file for mtab is not an option in my case.

Here's a session (only the relevant output, for brevity):

arwen:~# ls -l /etc/mtab
lrwxrwxrwx 1 root root 12 2007-01-25 17:38 /etc/mtab -> /proc/mounts
arwen:~# cat /proc/mounts
//10.0.0.150/builds /mnt/150/builds cifs rw,mand,unc=\\10.0.0.150\builds,username=root,rsize=16384,wsize=57344 0 0
//10.0.0.150/repositories /mnt/150/repositories cifs rw,mand,unc=\\10.0.0.150\repositories,username=root,rsize=16384,wsize=57344 0 0
arwen:~# umount /mnt/150/builds
arwen:~# ls -l /etc/mtab
-rw-r--r-- 1 root root 1281 2007-01-25 17:39 /etc/mtab

Thanks.

-- System Information:
Debian Release: 4.0
  APT prefers testing
  APT policy: (990, 'testing'), (50, 'unstable'), (1, 'experimental')
Architecture: i386 (i686)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-3-k7
Locale: LANG=en_US, LC_CTYPE=en_US (charmap=ANSI_X3.4-1968)

Versions of packages smbfs depends on:
ii  libc6    2.3.6.ds1-8                     GNU C Library: Shared libraries
ii  libcomer 1.39+1.40-WIP-2006.11.14+dfsg-1 common error description library
ii  libkrb53 1.4.4-6                         MIT Kerberos runtime libraries
ii  libldap2 2.1.30-13.2                     OpenLDAP libraries
ii  netbase  4.28                            Basic TCP/IP networking system
ii  samba-co 3.0.23d-4                       Samba common files used by both th

smbfs recommends no packages.

-- no debconf information

Message #12 received at 408394@bugs.debian.org (full text, mbox, reply):

From: Christian Perrier <bubulle@debian.org>

To: Radu Cristescu <radu.c@plutohome.com>, 408394@bugs.debian.org

Subject: Re: Bug#408394: umount.cifs: mtab symlink is replaced with regular file

Date: Thu, 31 May 2007 23:32:39 +0200

[Message part 1 (text/plain, inline)]

user pkg-samba@lists.alioth.debian.org
tags 408394 confirmed
usertags 408394 triaged
forwarded 408394 https://bugzilla.samba.org/show_bug.cgi?id=4675
thanks

Quoting Radu Cristescu (radu.c@plutohome.com):
> Package: smbfs
> Version: 3.0.23d-4
> Severity: grave
> 
> umount.cifs removes /etc/mtab even if it's a symlink to /proc/mounts
> and writes a regular file instead
> 
> I'm setting the Severity to "grave" because I think losing a symlink
> can be considered "data loss" (the symlink is "data") and using a
> regular file for mtab is not an option in my case.


I have been able to reproduce that bug, which I forwarded upstream.

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Message #21 received at 408394@bugs.debian.org (full text, mbox, reply):

From: Christian Perrier <bubulle@debian.org>

To: 408394@bugs.debian.org

Subject: Bug still here in 3.3.0-rc2

Date: Sat, 3 Jan 2009 20:12:21 +0100

[Message part 1 (text/plain, inline)]

found 408394 2:3.3.0~rc2-3
found 408394 2:3.2.5-2
thanks

This bug where an /etc/mtab symlink is replaced by a regular when the
filesystem is unmounted is still here in 3.2 and 3.3.0 packages.

-- 

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Message #40 received at 408394-close@bugs.debian.org (full text, mbox, reply):

From: Christian Perrier <bubulle@debian.org>

To: 408394-close@bugs.debian.org

Subject: Bug#408394: fixed in samba 2:3.4.3-1

Date: Sun, 01 Nov 2009 00:09:44 +0000

Source: samba
Source-Version: 2:3.4.3-1

We believe that the bug you reported is fixed in the latest version of
samba, which is due to be installed in the Debian FTP archive:

libpam-smbpass_3.4.3-1_i386.deb
  to main/s/samba/libpam-smbpass_3.4.3-1_i386.deb
libsmbclient-dev_3.4.3-1_i386.deb
  to main/s/samba/libsmbclient-dev_3.4.3-1_i386.deb
libsmbclient_3.4.3-1_i386.deb
  to main/s/samba/libsmbclient_3.4.3-1_i386.deb
libwbclient0_3.4.3-1_i386.deb
  to main/s/samba/libwbclient0_3.4.3-1_i386.deb
samba-common-bin_3.4.3-1_i386.deb
  to main/s/samba/samba-common-bin_3.4.3-1_i386.deb
samba-common_3.4.3-1_all.deb
  to main/s/samba/samba-common_3.4.3-1_all.deb
samba-dbg_3.4.3-1_i386.deb
  to main/s/samba/samba-dbg_3.4.3-1_i386.deb
samba-doc-pdf_3.4.3-1_all.deb
  to main/s/samba/samba-doc-pdf_3.4.3-1_all.deb
samba-doc_3.4.3-1_all.deb
  to main/s/samba/samba-doc_3.4.3-1_all.deb
samba-tools_3.4.3-1_i386.deb
  to main/s/samba/samba-tools_3.4.3-1_i386.deb
samba_3.4.3-1.diff.gz
  to main/s/samba/samba_3.4.3-1.diff.gz
samba_3.4.3-1.dsc
  to main/s/samba/samba_3.4.3-1.dsc
samba_3.4.3-1_i386.deb
  to main/s/samba/samba_3.4.3-1_i386.deb
samba_3.4.3.orig.tar.gz
  to main/s/samba/samba_3.4.3.orig.tar.gz
smbclient_3.4.3-1_i386.deb
  to main/s/samba/smbclient_3.4.3-1_i386.deb
smbfs_3.4.3-1_i386.deb
  to main/s/samba/smbfs_3.4.3-1_i386.deb
swat_3.4.3-1_i386.deb
  to main/s/samba/swat_3.4.3-1_i386.deb
winbind_3.4.3-1_i386.deb
  to main/s/samba/winbind_3.4.3-1_i386.deb



A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 408394@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Christian Perrier <bubulle@debian.org> (supplier of updated samba package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@debian.org)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Format: 1.8
Date: Sat, 31 Oct 2009 14:32:07 +0100
Source: samba
Binary: samba samba-common-bin samba-common samba-tools smbclient swat samba-doc samba-doc-pdf smbfs libpam-smbpass libsmbclient libsmbclient-dev winbind samba-dbg libwbclient0
Architecture: source all i386
Version: 2:3.4.3-1
Distribution: unstable
Urgency: low
Maintainer: Debian Samba Maintainers <pkg-samba-maint@lists.alioth.debian.org>
Changed-By: Christian Perrier <bubulle@debian.org>
Description: 
 libpam-smbpass - pluggable authentication module for Samba
 libsmbclient - shared library for communication with SMB/CIFS servers
 libsmbclient-dev - development files for libsmbclient
 libwbclient0 - Samba winbind client library
 samba      - SMB/CIFS file, print, and login server for Unix
 samba-common - common files used by both the Samba server and client
 samba-common-bin - common files used by both the Samba server and client
 samba-dbg  - Samba debugging symbols
 samba-doc  - Samba documentation
 samba-doc-pdf - Samba documentation in PDF format
 samba-tools - Samba testing utilities
 smbclient  - command-line SMB/CIFS clients for Unix
 smbfs      - Samba file system utilities
 swat       - Samba Web Administration Tool
 winbind    - Samba nameservice integration server
Closes: 408394
Changes: 
 samba (2:3.4.3-1) unstable; urgency=low
 .
   * New upstream release. This fixes the following bugs:
     - Do not attempt to update /etc/mtab if it is
       a symbolic link. Closes: #408394
   * Bump Standards-Version to 3.8.3 (checked)
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Files: 
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