[Webkit-unassigned] [Bug 44176] New: WebCore::createFragmentFromMarkup ReadAV at NULL

Wed Aug 18 07:32:32 PDT 2010

https://bugs.webkit.org/show_bug.cgi?id=44176

           Summary: WebCore::createFragmentFromMarkup ReadAV at NULL
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        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=64708)
 --> (https://bugs.webkit.org/attachment.cgi?id=64708)
Repro

The following repro causes a NULL pointer crash in latest Chromium:
<body onload="
  document.designMode='on';
  document.execCommand('selectall');
  document.execCommand('InsertLineBreak');
  document.open();
  document.execCommand('Undo');
  document.execCommand('InsertHTML', false, 'x');
">
id:             WebCore::createFragmentFromMarkup ReadAV at NULL (0aeb58d38090b34986cfab3dd85965ec)
description:    Attempt to read from NULL pointer in WebCore::createFragmentFromMarkup
stack:          WebCore::createFragmentFromMarkup
                WebCore::executeInsertHTML
                WebCore::Editor::Command::execute
                WebCore::Document::execCommand
                WebCore::DocumentInternal::execCommandCallback
                v8::internal::HandleApiCallHelper<...>
                v8::internal::Builtin_HandleApiCall
                v8::internal::Invoke
                v8::internal::Execution::Call
                ...

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