[Webkit-unassigned] [Bug 102689] [WinCairo] Crash when requesting favicon.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Mon Nov 26 09:27:32 PST 2012
https://bugs.webkit.org/show_bug.cgi?id=102689
--- Comment #10 from peavo at outlook.com 2012-11-26 09:29:43 PST ---
(In reply to comment #8)
> (From update of attachment 175822 [details])
> View in context: https://bugs.webkit.org/attachment.cgi?id=175822&action=review
>
> >>> Source/WebCore/platform/graphics/win/ImageCairoWin.cpp:98
> >>> + if (!frameAtIndex(i))
> >>
> >> Is it expected that a frame might be null? Maybe we have an underlying problem in frame handling that is allowing null images to pass through.
> >
> > I just checked the CG implementation, and they perform similar null checks. So I think this is the right approach.
>
> This fix was part of Bug 68753, which I have landed and closed.
I believe both patches are needed. We still need to check the return value of
frameAtIndex() to avoid dereferencing a null pointer.
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