[Webkit-unassigned] [Bug 164864] REGRESSION(r208511): ImageDecoders: Crash decoding GIF images since r208511

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Nov 17 22:29:42 PST 2016


--- Comment #8 from Carlos Garcia Campos <cgarcia at igalia.com> ---
(In reply to comment #6)
> Comment on attachment 295048 [details]
> Patch
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=295048&action=review
> Would it be better to rename the existing virtual frameBufferAtIndex()
> functions to be internalFrameBufferAtIndex() and create a non virtual
> function called frameBufferAtIndex() in imageDecoder class which does the
> locking and call internalFrameBufferAtIndex()?

I thought about that but I also want to make sure the returned ImageFrame is not modified by another thread, that's why don't release the lock until the end of the function.

> > Source/WebCore/platform/image-decoders/ImageDecoder.cpp:174
> > +    Locker<Lock> locker(m_lock);
> You can use LockHolder instead of Locker<Lock>.


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