samba - Jul 2019 - SAMBA AD DC - Windows explorer.exe crashes on security tab access

Hi Rowland,
i.e. we probably have to help Jeremy finding a setup that makes this
reproducible.
Seriously this implies it can be a difference in users, authorizations, linux,
samba, or windows installation or configuration.
I was testing with a user that is a domain administrator. I just tested with a
non-admin-user, also crashes.
My samba is 4.10.6 from Louis running on Ubuntu 18.04.2 running virtually on
Hyper-V 2019, my Windows is 64bit windows 10 pro 18362.239, also virtual on the
same Hyper-V.
If more on this list can try the same, we can probably see what is relevant to
expose the issue.
Jeremy, maybe I can offer VPN (sstp) access - interested? Not sure about the
round-trip-delay though..
Thanks, Joachim


-----Urspr?ngliche Nachricht-----
Von: samba <samba-bounces at lists.samba.org> Im Auftrag von Rowland penny
via samba
Gesendet: Friday, 19 July 2019 14:28
An: sambalist <samba at lists.samba.org>
Betreff: Re: [Samba] SAMBA AD DC - Windows explorer.exe crashes on security tab
access

On 19/07/2019 12:10, Joachim Lindenberg wrote:
> Hi Jeremy,
> this is what I do to get windows explorer (mine was a virtual machine
windows 10 pro upgraded recently to 1903) to crash:
>
> - on samba DC, obtain your sysvol directory from /etc/samba/smb.conf and do
a
> 	sudo mkdir <sysvoldir>/<domain>/test
> 	validate the directory has permissions like drwxrwx---+ 2 root root   
4096 Jul 19 12:58 test.
> - on windows PC navigate to \\<dc>\sysvol\<domain>, select
test, right mouse properties, tab security, and boom
Nope, tried all of the above, but it doesn't crash for myself ;-)

Rowland



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On 19/07/2019 14:17, Joachim Lindenberg wrote:
> Hi Rowland,
> i.e. we probably have to help Jeremy finding a setup that makes this
reproducible.
> Seriously this implies it can be a difference in users, authorizations,
linux, samba, or windows installation or configuration.
> I was testing with a user that is a domain administrator. I just tested
with a non-admin-user, also crashes.
> My samba is 4.10.6 from Louis running on Ubuntu 18.04.2 running virtually
on Hyper-V 2019, my Windows is 64bit windows 10 pro 18362.239, also virtual on
the same Hyper-V.
> If more on this list can try the same, we can probably see what is relevant
to expose the issue.
> Jeremy, maybe I can offer VPN (sstp) access - interested? Not sure about
the round-trip-delay though..
> Thanks, Joachim
>
>
Thing is, I did get this to crash, but this was quite some time ago, but 
I cannot get it to crash now. I have used two different Windows 
versions, as multiple users against different shares. Not sure just what 
to try now, as it was easy to get the crash to happen before.

Rowland

On Fri, Jul 19, 2019 at 03:17:57PM +0200, Joachim Lindenberg
wrote:
> Hi Rowland,
> i.e. we probably have to help Jeremy finding a setup that makes this
reproducible.
> Seriously this implies it can be a difference in users, authorizations,
linux, samba, or windows installation or configuration.
> I was testing with a user that is a domain administrator. I just tested
with a non-admin-user, also crashes.
> My samba is 4.10.6 from Louis running on Ubuntu 18.04.2 running virtually
on Hyper-V 2019, my Windows is 64bit windows 10 pro 18362.239, also virtual on
the same Hyper-V.
> If more on this list can try the same, we can probably see what is relevant
to expose the issue.
> Jeremy, maybe I can offer VPN (sstp) access - interested? Not sure about
the round-trip-delay though..
> Thanks, Joachim
I'm out on vacation (holiday for Rowland :-) for a week, so
maybe after I get back. But if Microsoft have already fixed
it it's not a high priority anymore.

As I can still reproduce it, it not fixed. It is only not reproducible in all
configurations.
But sure, enjoy your vacation first!
Joachim

-----Urspr?ngliche Nachricht-----
Von: samba <samba-bounces at lists.samba.org> Im Auftrag von Jeremy
Allison via samba
Gesendet: Friday, 19 July 2019 18:14
An: Joachim Lindenberg <samba at lindenberg.one>
Cc: samba at lists.samba.org
Betreff: Re: [Samba] SAMBA AD DC - Windows explorer.exe crashes on security tab
access

On Fri, Jul 19, 2019 at 03:17:57PM +0200, Joachim Lindenberg
wrote:
> Hi Rowland,
> i.e. we probably have to help Jeremy finding a setup that makes this
reproducible.
> Seriously this implies it can be a difference in users, authorizations,
linux, samba, or windows installation or configuration.
> I was testing with a user that is a domain administrator. I just tested
with a non-admin-user, also crashes.
> My samba is 4.10.6 from Louis running on Ubuntu 18.04.2 running virtually
on Hyper-V 2019, my Windows is 64bit windows 10 pro 18362.239, also virtual on
the same Hyper-V.
> If more on this list can try the same, we can probably see what is relevant
to expose the issue.
> Jeremy, maybe I can offer VPN (sstp) access - interested? Not sure about
the round-trip-delay though..
> Thanks, Joachim
I'm out on vacation (holiday for Rowland :-) for a week, so maybe after I
get back. But if Microsoft have already fixed it it's not a high priority
anymore.

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