[Webkit-unassigned] [Bug 199613] REGRESSION(r244906): Crash in WebCore::positionOffsetValue

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=199613

zalan <zalan at apple.com> changed:

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--- Comment #3 from zalan <zalan at apple.com> ---
Comment on attachment 373708
  --> https://bugs.webkit.org/attachment.cgi?id=373708
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=373708&action=review

> Source/WebCore/css/CSSComputedStyleDeclaration.cpp:794
> +            auto& enclosingClippingBox =
> +                box.enclosingClippingBoxForStickyPosition();

why 2 lines.

> Source/WebCore/rendering/RenderBoxModelObject.cpp:448
> +    auto* clipLayer = layer()->enclosingOverflowClipLayer(ExcludeSelf);

I guess if sticky does not produce a layer, we have bigger problems than this null deref.

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