[Bug 40945] Post provider setup of WMI core 1.5 installer fails in wbemprox

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=40945

Zebediah Figura <z.figura12 at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |z.figura12 at gmail.com

--- Comment #4 from Zebediah Figura <z.figura12 at gmail.com> ---
(In reply to Gijs Vermeulen from comment #3)
> This is still present in wine-5.14.
> 
> I've debugged this a bit and I think there are multiple issues here.
> 
> 1) The installer calls IWbemServices::GetObject to query "__NAMESPACE".
> get_object calls create_instance_enum which calls exec_query. This all
> succeeds, but will cause view->table_count to be 0. 
> 
> It seems IWbemServices::GetObject should maybe use get_propval to go to
> get_system_propval so the right things are returned.
> 
> 2) The actual cause of the crash is that after create_instance_enum returns,
> get_object calls create_class_object and the app will use the returned
> IWbemClassObject to call IWbemClassObject::SpawnInstance. SpawnInstance
> calls create_record with a NULL table. Since table->num_cols is 0,
> record->fields won't be properly alloc'd, ultimately leading to a crash.

Oh hey, I may have just fixed that:

https://source.winehq.org/git/wine.git/commitdiff/a0c9aab5deffcdf30826574ba331ea8f18616ce3

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