[Webkit-unassigned] [Bug 261998] [Win] REGRESSION(268343 at main): Crash under WebCore::PositionedDescendantsMap::removeContainingBlock

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=261998

--- Comment #4 from Fujii Hironori <Hironori.Fujii at sony.com> ---
In removeContainingBlock, renderer doesn't seem to be a valid object.
https://github.com/WebKit/WebKit/blob/8aa2481bf186536ad7a85d228abc51f42c53a321/Source/WebCore/rendering/RenderBlock.cpp#L222
In the previous code, it is no problem because the code just removes a raw pointer from m_containerMap.

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