[Bug 1509457] [NEW] SMBD User authentication doesn't work after dist upgrade to 15.10

[Vertago1]

Public bug reported:

After upgrading to 15.10 my samba share stopped working. Guest shares
work, but user authentication does not. After browsing to the share the
user and password prompt is displayed but fails even with the correct
credentials.

I tried purging the samba packages and rewriting the configuration from a clean copy of /etc/samba/smb.conf
The user is present in smbpasswd.
The share configuration is of the form:

[myshare]
   guest ok = no
   path = /home/username/myshare
   browseable = yes
   read only = no
   valid users = username
   user = username

As a workaround I created a linux container for ubuntu 15.04, installed
samba, used the same configuration, created the user, mounted the users
home directory using --bind, and forwarded ports 139, and 445 and was
able to get it to work.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: samba 2:4.1.17+dfsg-4ubuntu2
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
BothFailedConnect: Yes
Date: Fri Oct 23 12:35:26 2015
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SambaServerRegression: Yes
SmbConfIncluded: No
SourcePackage: samba
UpgradeStatus: Upgraded to wily on 2015-10-22 (1 days ago)
upstart.smbd.override: manual

** Affects: samba (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug wily

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https://bugs.launchpad.net/bugs/1509457

Title:
  SMBD User authentication doesn't work after dist upgrade to 15.10

Status in samba package in Ubuntu:
  New

Bug description:
  After upgrading to 15.10 my samba share stopped working. Guest shares
  work, but user authentication does not. After browsing to the share
  the user and password prompt is displayed but fails even with the
  correct credentials.

  I tried purging the samba packages and rewriting the configuration from a clean copy of /etc/samba/smb.conf
  The user is present in smbpasswd.
  The share configuration is of the form:

  [myshare]
     guest ok = no
     path = /home/username/myshare
     browseable = yes
     read only = no
     valid users = username
     user = username

  As a workaround I created a linux container for ubuntu 15.04,
  installed samba, used the same configuration, created the user,
  mounted the users home directory using --bind, and forwarded ports
  139, and 445 and was able to get it to work.

  ProblemType: Bug
  DistroRelease: Ubuntu 15.10
  Package: samba 2:4.1.17+dfsg-4ubuntu2
  ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
  Uname: Linux 4.2.0-16-generic x86_64
  ApportVersion: 2.19.1-0ubuntu3
  Architecture: amd64
  BothFailedConnect: Yes
  Date: Fri Oct 23 12:35:26 2015
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SambaServerRegression: Yes
  SmbConfIncluded: No
  SourcePackage: samba
  UpgradeStatus: Upgraded to wily on 2015-10-22 (1 days ago)
  upstart.smbd.override: manual

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