[tbb-bugs] #14454 [Tor Browser]: Tor Browser crashes during exit if "Work Offline" is ticked (Win7 64)

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#14454: Tor Browser crashes during exit if "Work Offline" is ticked (Win7 64)
----------------------------+--------------------------
 Reporter:  jah             |          Owner:  tbb-team
     Type:  defect          |         Status:  new
 Priority:  normal          |      Milestone:
Component:  Tor Browser     |        Version:
 Keywords:  offline, crash  |  Actual Points:
Parent ID:                  |         Points:
----------------------------+--------------------------
 v4.0.3 on Win7 64b

 An easy one to reproduce:

 - Open Tor Browser
 - Head to the File menu (Alt-F) and select "Work Offline"
 - Close Tor Browser

 Windows shows a werfault pop-up announcing that "Tor Browser has stopped
 working" and providing a button to close the program.  There is no visible
 indication as to why it crashes.

 This is what Process Explorer thinks the stack for the Tor Browser process
 looked like, while the werfault pop-up was waiting for me to kill the
 process

 {{{
 wow64cpu.dll!TurboDispatchJumpAddressEnd+0x6c0
 wow64cpu.dll!TurboDispatchJumpAddressEnd+0x4a8
 wow64.dll!Wow64SystemServiceEx+0x1ce
 wow64.dll!Wow64LdrpInitialize+0x42a
 ntdll.dll!RtlUniform+0x6e6
 ntdll.dll!RtlCreateTagHeap+0xa7
 ntdll.dll!LdrInitializeThunk+0xe
 ntdll.dll!ZwWaitForSingleObject+0x15
 kernel32.dll!WaitForSingleObjectEx+0x43
 kernel32.dll!WaitForSingleObject+0x12
 xul.dll!NS_InvokeByIndex+0x341b2
 xul.dll!XRE_AddStaticComponent+0x7ac9
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14454>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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