Bug 77193 – NULL ptr in WebCore::InsertListCommand::doApply

• Status: RESOLVED
• Resolution: FIXED
• Component: HTML Editing

[Berend-Jan Wever]

Chromium: http://code.google.com/p/chromium/issues/detail?id=111606
Detailed report: https://cluster-fuzz.appspot.com/testcase?key=15758617

Uploader: [e-mail]

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>

Fix for Bug 78868 fixed this.