[Webkit-unassigned] [Bug 56642] New: chrome.dll!WebCore::CSSStyleDeclaration::diff ReadAV at NULL (1933558aaf23e4d9cc2ec3bc22fad247)

Fri Mar 18 06:01:25 PDT 2011

https://bugs.webkit.org/show_bug.cgi?id=56642

           Summary: chrome.dll!WebCore::CSSStyleDeclaration::diff
                    ReadAV at NULL (1933558aaf23e4d9cc2ec3bc22fad247)
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Windows Vista
            Status: NEW
          Severity: Normal
          Priority: P1
         Component: HTML Editing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: skylined at chromium.org
                CC: rniwa at webkit.org


Chromium: http://code.google.com/p/chromium/issues/detail?id=76672

Repro:
<body onload="go()"></body>
<script>
  function go() {
    var oSelection=window.getSelection();
    document.designMode="on";
    document.open();
    oSelection.addRange(document.createRange());
    document.execCommand("justifyleft");
  }
</script>

id:             chrome.dll!WebCore::CSSStyleDeclaration::diff ReadAV at NULL (1933558aaf23e4d9cc2ec3bc22fad247)
description:    Attempt to read from unallocated NULL pointer in chrome.dll!WebCore::CSSStyleDeclaration::diff
stack:          chrome.dll!WebCore::CSSStyleDeclaration::diff
                chrome.dll!WebCore::getPropertiesNotIn
                chrome.dll!WebCore::StyleChange::init
                chrome.dll!WebCore::ApplyStyleCommand::applyBlockStyle
                chrome.dll!WebCore::ApplyStyleCommand::doApply
                chrome.dll!WebCore::EditCommand::apply
                chrome.dll!WebCore::applyCommand
                chrome.dll!WebCore::Editor::applyParagraphStyle
                chrome.dll!WebCore::executeApplyParagraphStyle
                chrome.dll!WebCore::executeJustifyLeft
                chrome.dll!WebCore::Editor::Command::execute
                chrome.dll!WebCore::Document::execCommand
                chrome.dll!WebCore::DocumentInternal::execCommandCallback
                chrome.dll!v8::internal::HandleApiCallHelper<...>
                chrome.dll!v8::internal::Builtin_HandleApiCall
                chrome.dll!v8::internal::Invoke
                chrome.dll!v8::internal::Execution::Call
                ...

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