[Webkit-unassigned] [Bug 77193] New: NULL ptr in WebCore::InsertListCommand::doApply

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=77193

           Summary: NULL ptr in WebCore::InsertListCommand::doApply
           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=111606
Detailed report: https://cluster-fuzz.appspot.com/testcase?key=15758617

Uploader: skylined at chromium.org

Crash Type: UNKNOWN
Crash Address: 0x000000000024
Crash State:
  - crash stack -
  WebCore::InsertListCommand::doApply
  WebCore::CompositeEditCommand::apply
  WebCore::executeInsertUnorderedList

Regressed: https://cluster-fuzz.appspot.com/revisions?range=115632:115640

Minimized Testcase (0.54 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv976icN9qdp4sMVNE8SXwBIUEBlGK31-FvvXQODHe8W8bibwspd0dqpNOrJJpOIDAqdBgtmm6unfSZbZfOOfBAHkrV-_YxUGhvHoU20F6oFPo6n0YhLSypB6CY3iNKmlN10xwsROeIxm-P_s9WIUdK_F-SLw0g
orphans:cle>

<script>
  var af = [], i = 0;
  function main(){af[i++ % af.length]()}
</script>

<script tascript">
af.push(function (){
  document.designMode="on";  })
af.push(function (){
  document.execCommand("Undo");  document.execCommand("InsertUnorderedList");  })
af.push(function (){
  document.execCommand("Subscript");  document.execCommand("SelectAll", false);  })
</script>

<script>
  document.addEventListener("DOMNodeInserted",main,true);
  document.addEventListener("DOMSubtreeModified",main,true);setInterval(main, 100);
</script>

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