[Webkit-unassigned] [Bug 77077] New: chrome.dll!WebCore::caretMaxOffset ReadAV at NULL (16082e3239491f3c9d95ed01a263acfe)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=77077

           Summary: chrome.dll!WebCore::caretMaxOffset ReadAV at NULL
                    (16082e3239491f3c9d95ed01a263acfe)
           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


Created an attachment (id=124076)
 --> (https://bugs.webkit.org/attachment.cgi?id=124076&action=review)
Repro

Chromium:       http://code.google.com/p/chromium/issues/detail?id=111460
id:             chrome.dll!WebCore::caretMaxOffset ReadAV at NULL (16082e3239491f3c9d95ed01a263acfe)
description:    Attempt to read from unallocated NULL pointer+0x14 in chrome.dll!WebCore::caretMaxOffset
application:    Chromium 18.0.1011.0
stack:          chrome.dll!WebCore::caretMaxOffset
                chrome.dll!WebCore::DeleteSelectionCommand::handleGeneralDelete
                chrome.dll!WebCore::DeleteSelectionCommand::doApply
                chrome.dll!WebCore::CompositeEditCommand::applyCommandToComposite
                chrome.dll!WebCore::CompositeEditCommand::deleteSelection
                chrome.dll!WebCore::InsertParagraphSeparatorCommand::doApply
                chrome.dll!WebCore::CompositeEditCommand::applyCommandToComposite
                chrome.dll!WebCore::TypingCommand::insertParagraphSeparator
                chrome.dll!WebCore::CompositeEditCommand::apply
                chrome.dll!WebCore::applyCommand
                chrome.dll!WebCore::TypingCommand::insertParagraphSeparator
                chrome.dll!WebCore::executeInsertParagraph
                chrome.dll!WebCore::Editor::Command::execute
                chrome.dll!WebCore::Document::execCommand
                chrome.dll!WebCore::DocumentInternal::execCommandCallback

Repro:
><progress><script>
  document.designMode="on";
  document.execCommand("selectall");
  document.execCommand("justifycenter",false);
  document.body.removeChild(document.body.firstElementChild);
  document.execCommand("insertparagraph");
</script>

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