[Pkg-samba-maint] Bug#522907: Bug#522907: winbind: Winbind daily crashes, possible fix to bug #483235

[Francis Brosnan Blazquez]

Hi Christian,

> From your description that could also be similar to Ubuntu bug #282733
> https://bugs.launchpad.net/bugs/282733

It seems we have at least two bugs here in the same report. In our
environment we are not using winbind nss rfc2307 unix extension so, it
looks having it activated will throw the first backtrace. 

The second backtrace refers to exactly the bug we are experimenting. It
seems this user do not use rfc2307 extension, and...

> ..which is upstream bug #5747
> https://bugzilla.samba.org/show_bug.cgi?id=5747

...looking at this report I don't find the relation with the bug I've
reported. Again, it seems entirely related to rfc2307 extension (which
is confirmed with the configuration example showed). 

Taking a look into the patch proposed (id=3548) it is definitely not the
bug I'm reporting.

> I don't have net access right now, but we should check whether these
> bugs are all related. I have too many winbind crash bugs floating
> around.

I think they aren't related. It seems a second user (Richard Verwayen)
have posted its problem at launchpad in the same bug based on the fact
that both bugs were winbind crashes (and maybe because both were
authenticating against windows server, but that's winbind function).

> Testing if the same bug also happens with 3.3.2 from unstable would
> also help.

I only have one environment with this configuration and it is in
production. 

In any case, the patch I'm proposing won't harm because it is an
additional NULL reference check which seems reasonable having
ldap_parse_result with so fanatic behavior.

Cheers!
-- 
Francis Brosnan Blazquez <francis at aspl.es>