[Pkg-samba-maint] Bug#881239: samba: Panic on opening file on samba share with Microsoft Project

[Frank Chung]

Package: samba
Version: 2:4.7.0+dfsg-2
Severity: normal

Dear Maintainer,

After updating Debian testing release with samba upgraded to
2:4.7.0+dfsg-2, when trying to open a .mpp file on a samba share with
Microsoft Project, the samba process panics. Microsoft Project reports that
the file cannot be opened.

Downgrading to 2:4.6.7+dfsg-2 (the previous testing release version)
resolves the problem.

Downgrading libtevent0 to 0.9.31-1 (the previous testing release version)
while keeping samba at 2:4.7.0+dfsg-2 DID NOT resolve the problem.

Client OS: Microsoft Windows 7
Client Application: Microsoft Project 2007 (Similar problem occurs with
Microsoft Excel 2013 and 2016)
Action causing the samba panic: "File/Open..." in Microsoft Project to open
a .mpp file on the samba share

Enclosed herewith is the "log level 10" /var/log/samba/log.smbd from
starting the samba server, to attempting to access the shared file causing
the panic, to stopping the samba server. (The process that panicked is
pid=15190.)

Thanks for investigating.

Regards,
Frank Chung

-- Package-specific info:
* /etc/samba/smb.conf present, and attached

-- System Information:
Debian Release: buster/sid
  APT prefers testing
  APT policy: (990, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.12.0-1-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages samba depends on:
ii  adduser           3.116
ii  dpkg              1.19.0.4
ii  libattr1          1:2.4.47-2+b2
ii  libbsd0           0.8.6-2
ii  libc6             2.24-17
ii  libldb1           2:1.2.2-2
ii  libpam-modules    1.1.8-3.6
ii  libpam-runtime    1.1.8-3.6
ii  libpopt0          1.16-10+b2
ii  libpython2.7      2.7.14-2
ii  libtalloc2        2.1.10-2
ii  libtdb1           1.3.15-2
ii  libtevent0        0.9.33-2
ii  lsb-base          9.20170808
ii  procps            2:3.3.12-3
ii  python            2.7.14-1
ii  python-dnspython  1.15.0-1
ii  python-samba      2:4.7.0+dfsg-2
ii  python2.7         2.7.14-2
ii  samba-common      2:4.7.0+dfsg-2
ii  samba-common-bin  2:4.7.0+dfsg-2
ii  samba-libs        2:4.7.0+dfsg-2
ii  tdb-tools         1.3.15-2

Versions of packages samba recommends:
ii  attr                1:2.4.47-2+b2
ii  logrotate           3.11.0-0.1
ii  samba-dsdb-modules  2:4.7.0+dfsg-2
ii  samba-vfs-modules   2:4.7.0+dfsg-2

Versions of packages samba suggests:
pn  bind9          <none>
pn  bind9utils     <none>
pn  ctdb           <none>
pn  ldb-tools      <none>
pn  ntp | chrony   <none>
pn  smbldap-tools  <none>
pn  ufw            <none>
pn  winbind        <none>

-- no debconf information
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