[Webkit-unassigned] [Bug 33049] New: WebCore::positionInParentBeforeNode ReadAV at NULL (98882320ea2b731f10f353b23849bd6a)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=33049

           Summary: WebCore::positionInParentBeforeNode ReadAV at NULL
                    (98882320ea2b731f10f353b23849bd6a)
           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: eric at webkit.org


Created an attachment (id=45652)
 --> (https://bugs.webkit.org/attachment.cgi?id=45652)
Repro

Id:          WebCore::positionInParentBeforeNode ReadAV at NULL
(98882320ea2b731f10f353b23849bd6a)
Description: Attempt to read from NULL pointer (+0xC) in
WebCore::positionInParentBeforeNode
Stack:
  WebCore::positionInParentBeforeNode
  WebCore::InsertTextCommand::input
  WebCore::TypingCommand::insertTextRunWithoutNewlines
  WebCore::TypingCommand::insertText
  WebCore::TypingCommand::doApply
  WebCore::EditCommand::apply
  WebCore::applyCommand
  WebCore::TypingCommand::insertText
  WebCore::TypingCommand::insertText
  WebCore::executeInsertText
  WebCore::Editor::Command::execute
  WebCore::Document::execCommand
  WebCore::DocumentInternal::execCommandCallback
  v8::internal::Builtin_HandleApiCall
  v8::internal::Invoke
  v8::internal::Execution::Call
  v8::Script::Run
  WebCore::V8Proxy::runScript
  WebCore::V8Proxy::evaluate
  WebCore::ScriptController::evaluate
  WebCore::ScriptController::executeScript
  WebCore::ScriptController::executeScript
  WebCore::ScriptController::executeIfJavaScriptURL
  WebCore::FrameLoader::changeLocation
  WebCore::RedirectScheduler::timerFired
  WebCore::Timer<...>::fired
  WebCore::ThreadTimers::sharedTimerFiredInternal
  MessageLoop::RunTask
  MessageLoop::DoWork
  base::MessagePumpDefault::Run
  MessageLoop::RunInternal
  MessageLoop::Run
  RendererMain

Event details

Processes    
   0    id: df8 create  name: chrome.exe
.  1    id: 9d4 child   name: chrome.exe
Threads    
. 12  Id: 9d4.51c Suspend: 1 Teb: 7ffdf000 Unfrozen "Main Thread"
  14  Id: 9d4.774 Suspend: 1 Teb: 7ffde000 Unfrozen
  15  Id: 9d4.930 Suspend: 1 Teb: 7ffdd000 Unfrozen "Chrome_ChildIOThread"
  16  Id: 9d4.a94 Suspend: 1 Teb: 7ffdc000 Unfrozen
ExceptionAddress    0248fbba
(chrome_1c30000!WebCore::positionInParentBeforeNode+0x0000000a)
ExceptionCode    c0000005 (Access violation)
ExceptionFlags    00000000
NumberParameters    2
Parameter[0]    00000000
Parameter[1]    0000000c
Attempt to read from address 0000000c

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