Office 2007 MSI Crash - Null dereference @ MsiViewExecute

Mike Kaplinskiy mike.kaplinskiy at
Tue Apr 28 21:27:42 CDT 2009

I was looking at the trace of the crash from bug 17600, and it looks like 
a custom action is calling MsiViewExecute with a null hRec.

I (sadly) don't know much about the wine MSI architecture, but the 
msiobj_lock on line 484 should fail since rec will never be fetched 
(null). I think the intention was to make it query->hdr (as it is 
released later).

Sorry if I'm dead wrong - just my 2c

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