[Webkit-unassigned] [Bug 50219] New: chrome.dll!WebCore::RenderObject::RenderObject ReadAV at NULL (65bf4b7466d7b2a21ddbeba4b5e01f4e)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=50219

           Summary: chrome.dll!WebCore::RenderObject::RenderObject
                    ReadAV at NULL (65bf4b7466d7b2a21ddbeba4b5e01f4e)
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://code.google.com/p/chromium/issues/detail?id=647
                    51
        OS/Version: Windows Vista
            Status: NEW
          Severity: Normal
          Priority: P1
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: skylined at chromium.org
                CC: eric at webkit.org


Created an attachment (id=75120)
 --> (https://bugs.webkit.org/attachment.cgi?id=75120&action=review)
Repro

Repro:
<style>
  * {
    -webkit-column-count:3;
    -webkit-column-span: all;
  }
</style>
<h><table>

id:             chrome.dll!WebCore::RenderObject::RenderObject ReadAV at NULL (65bf4b7466d7b2a21ddbeba4b5e01f4e)
description:    Attempt to read from unallocated NULL pointer+0x14 in chrome.dll!WebCore::RenderObject::RenderObject
application:    Chromium 9.0.596.0
stack:          chrome.dll!WebCore::RenderObject::RenderObject
                chrome.dll!WebCore::RenderBoxModelObject::RenderBoxModelObject
                chrome.dll!WebCore::RenderBox::RenderBox
                chrome.dll!WebCore::RenderBlock::clone
                chrome.dll!WebCore::RenderBlock::splitBlocks
                chrome.dll!WebCore::RenderBlock::splitFlow
                chrome.dll!WebCore::RenderBlock::addChildIgnoringAnonymousColumnBlocks
                chrome.dll!WebCore::RenderBlock::addChildIgnoringContinuation
                chrome.dll!WebCore::RenderBlock::addChild
                chrome.dll!WebCore::RenderInline::splitFlow
                chrome.dll!WebCore::RenderInline::addChildIgnoringContinuation
                chrome.dll!WebCore::Node::createRendererIfNeeded
                chrome.dll!WebCore::Element::attach
                chrome.dll!WebCore::HTMLConstructionSite::attach<...>
                chrome.dll!WebCore::HTMLConstructionSite::insertHTMLElement
                chrome.dll!WebCore::HTMLTreeBuilder::processStartTagForInBody
                chrome.dll!WebCore::HTMLTreeBuilder::processStartTag
                chrome.dll!WebCore::HTMLTreeBuilder::constructTreeFromAtomicToken
                chrome.dll!WebCore::HTMLTreeBuilder::constructTreeFromToken
                chrome.dll!WebCore::HTMLDocumentParser::pumpTokenizer
                chrome.dll!WebCore::HTMLDocumentParser::append
                chrome.dll!WebCore::DecodedDataDocumentParser::appendBytes
                chrome.dll!WebCore::DocumentWriter::endIfNotLoadingMainResource
                chrome.dll!WebCore::FrameLoader::finishedLoading
                chrome.dll!WebCore::MainResourceLoader::didFinishLoading
                chrome.dll!WebCore::ResourceLoader::didFinishLoading
                chrome.dll!WebCore::ResourceHandleInternal::didFinishLoading
                ...

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