[Bug 48123] New: Word 97 crashes after calling stub URLMoniker_ComposeWith

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48123

Bug ID: 48123
           Summary: Word 97 crashes after calling stub
                    URLMoniker_ComposeWith
           Product: Wine
           Version: 4.20
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: urlmon
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 65715
  --> https://bugs.winehq.org/attachment.cgi?id=65715
Backtrace generated by the Wine debugger

This function is used by Word 97's Web browsing features. Clicking on an
hyperlink or using the Web toolbar triggers this function and the program
crashes shortly afterwards.

The following warnings are printed when clicking on an hyperlink:
> 002c:fixme:hlink:IHlinkBC_Register (00A9D9E0)->(0 009B02BC 00A9DA00 00986A3C)
> 002c:fixme:ole:ItemMonikerImpl_Construct lpszDelim is NULL. Using empty string which is possibly wrong.
> 002c:fixme:ole:ItemMonikerImpl_Construct lpszDelim is NULL. Using empty string which is possibly wrong.
> 002c:fixme:urlmon:URLMoniker_ComposeWith (009EA280)->(00A9E3C0,1,0032F0D8): stub
> wine: Unhandled page fault on read access to 00000000 at address 7E39398D (thread 002c), starting debugger...

I am not absolutely sure URLMoniker_ComposeWith is responsible for the crash,
but it is certainly suspicious. The crash actually happens in
CreateGenericComposite from ole32.