gvfs-mount doesn't work with smb* 4.3.8 on a NetApp

Bug #1576109 reported by Samuel Bancal on 2016-04-28
This bug affects 5 people
Affects Status Importance Assigned to Milestone
samba (Debian)
Fix Released
samba (Ubuntu)

Bug Description

After upgrading samba to 4.3.8, we can't mount any more our filers with gvfs-mount (or with the Files browser's "Connect to server" dialog).

This occurs on every supported Ubuntu : 12.04, 14.04, 15.10, 16.04
samba-common 2:4.3.8+dfsg-0ubuntu0.14.04.2

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: samba (not installed)
ProcVersionSignature: Ubuntu 3.19.0-58.64~14.04.1-generic 3.19.8-ckt16
Uname: Linux 3.19.0-58-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Apr 28 11:02:17 2016
InstallationDate: Installed on 2015-09-02 (239 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
 nautilus 1:3.10.1-0ubuntu9.11
 gvfs 1.20.3-0ubuntu1.2
SambaClientRegression: Yes
SourcePackage: samba
UpgradeStatus: No upgrade log present (probably fresh install)

Samuel Bancal (samuel-bancal) wrote :
tags: added: regression-update sts
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in samba (Ubuntu):
status: New → Confirmed
Marc Deslauriers (mdeslaur) wrote :

Today's Samba update should contain the fix for this issue:


Could the original bug reporter please test the update and comment here? Thanks!

Samuel Bancal (samuel-bancal) wrote :

I do confirm the patch solved the problem we encountered for 14.04 , 15.10 and 16.04 .
Unfortunately, 12.04 still can't mount NAS.


Marc Deslauriers (mdeslaur) wrote :

For 12.04 and the problem mounting your NAS, could you try adding the following to your /etc/samba/smb.conf, in the [global] section, and then rebooting?:

client ipc signing = disabled

Samuel Bancal (samuel-bancal) wrote :

It doesn't change anything ... it's still asking me the password recursively for ever.

Marc Deslauriers (mdeslaur) wrote :


I have uploaded a samba package for precise to the following PPA:


Once it finishes building, could you please give it a try? I have backported a commit that I believe may fix your issue.


Samuel Bancal (samuel-bancal) wrote :

Hi Marc,

I confirm the packages in your testing ppa fixes our problem. So GR8!!!


Launchpad Janitor (janitor) wrote :

This bug was fixed in the package samba - 2:3.6.25-0ubuntu0.12.04.4

samba (2:3.6.25-0ubuntu0.12.04.4) precise-security; urgency=medium

  * SECURITY REGRESSION: compatibility with NetAPP SAN (LP: #1576109)
    - debian/patches/fix_netapp.patch: don't require NTLMSSP_SIGN for smb
      connections in source3/libsmb/ntlmssp.c.
  * SECURITY REGRESSION: compatibility with 3.6 servers (LP: #1574403)
    - debian/patches/relax_client_ipc_signing.patch: relax the
      "client ipc signing" parameter to "auto" so a 3.6 client can still
      connect to a 3.6 server. Administrators in environments that
      exclusively connect to more recent servers might want to manually
      configure this back to "mandatory".

 -- Marc Deslauriers <email address hidden> Thu, 12 May 2016 11:51:56 -0400

Changed in samba (Ubuntu):
status: Confirmed → Fix Released
Samuel Bancal (samuel-bancal) wrote :

I do confirm the bug is fixed with the new package.

Changed in samba (Debian):
status: Unknown → Confirmed
Changed in samba (Debian):
status: Confirmed → Fix Released
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