[vbox-dev] VBoxVideoW8 null pointer dereference (test build)

Vitali Pelenjow Vitali.Pelenjow at oracle.com
Wed Feb 11 09:39:09 GMT 2015


thanks for the report.

I've already replied to you, but to make it visible on this list:

We reproduced the regression and will fix it.


Mihai Hanor wrote:
> Hello,
> I want to report an issue I have encountered with the latest test 
> build, VirtualBox-4.3.21-97963-Win. The host OS is Windows 8.1 x64, so 
> is the guest. I can reproduce the issue with the 4.3.21-97963, 
> 4.3.20-96996 and 4.3.21-97986 Guest Additions. It doesn't seem to 
> happen when running VirtualBox 4.3.20-96996. The crash seems to occur 
> during the fade-out of the Windows 8.1 logo screen. It's not 100% 
> reproducible.
> A minidump (GA 4.3.21-97986): sendspace.com/file/hizczh
> Stack backtrace (self-compiled GA 4.3.20-96996): pastebin.com/7uujnm2G
> When looking at the self-compiled driver crash, it seems that 
> pDevExt->DpcCmdQueue is not null, but pDevExt->DpcCmdQueue>Flink and 
> pDevExt->DpcCmdQueue->Blink are null.
> Thank you,
> Mihai
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