[Samba] explorer.exe crashes on security tab access

[Kacper]

By primary group I mean the group that is set by chgrp. that is the group
returned after the pound key (#) from getfacl. In other words the Unix
group and not the one managed by ACLs.

/ Kacper

> Hello,
>
> I've seem to have found what looks like a bug in Samba 4.8.3. It's
> the same problem as described in
> https://lists.samba.org/archive/samba/2018-March/214589.html. When
> accessing the Security tab on files and folder from a share
> explorer.exe crashes.

>> It doesn't crash for me.

>
> I've been able to track down that it only happens when the primary
> group of a file or folder is a Unix group. Using an AD group as the
> primary group of files and folders does not crash Windows.

>> Can you expand on what you mean by 'primary group'

>
> I would appreciate any pointers or assistance in collecting as much
> valuable information to create a bug report.

>> Let's make sure it is a bug first ;-)

>> Rowland