[Bug 47439] New: Multiple .NET 4.x applications using System.Windows.Forms.InputLanguage.get_LayoutName () crash due to missing registry data

wine-bugs at winehq.org wine-bugs at winehq.org
Sun Jun 30 04:59:59 CDT 2019 

https://bugs.winehq.org/show_bug.cgi?id=47439

            Bug ID: 47439
           Summary: Multiple .NET 4.x applications using
                    System.Windows.Forms.InputLanguage.get_LayoutName()
                    crash due to missing registry data
           Product: Wine
           Version: 4.11
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: user32
          Assignee: wine-bugs at winehq.org
          Reporter: focht at gmx.net
      Distribution: ---

Hello folks,

encountered with some .NET 4.x apps that make use of
'System.Windows.Forms.InputLanguage' class.

There is old bug 28170 ("Text Service and Input Languages" needs unimplemented
function USER32.dll.LoadKeyboardLayoutEx called") which contains some
information and partial registry snippets but here only the registry data is
required.

--- snip ---
...
002c:Call KERNEL32.FindNLSStringEx(015d124c L"",08400001,019b65b4
L"SYSTEM\\CurrentControlSet\\Control\\Keyboard
Layouts\\00000409",0000003a,015d4b70
L"\\",00000001,0034eb7c,00000000,00000000,00000000) ret=00b3711a
002c:Ret  KERNEL32.FindNLSStringEx() retval=00000006 ret=00b3711a
002c:Call KERNEL32.FindNLSStringEx(015d124c L"",08400001,019b65c2
L"CurrentControlSet\\Control\\Keyboard Layouts\\00000409",00000033,015d4b70
L"\\",00000001,0034eb7c,00000000,00000000,00000000) ret=00b3711a
002c:Ret  KERNEL32.FindNLSStringEx() retval=00000011 ret=00b3711a
002c:Call KERNEL32.FindNLSStringEx(015d124c L"",08400001,019b65e6
L"Control\\Keyboard Layouts\\00000409",00000021,015d4b70
L"\\",00000001,0034eb7c,00000000,00000000,00000000) ret=00b3711a
002c:Ret  KERNEL32.FindNLSStringEx() retval=00000007 ret=00b3711a
002c:Call KERNEL32.FindNLSStringEx(015d124c L"",08400001,019b65f6 L"Keyboard
Layouts\\00000409",00000019,015d4b70
L"\\",00000001,0034eb7c,00000000,00000000,00000000) ret=00b3711a
002c:Ret  KERNEL32.FindNLSStringEx() retval=00000010 ret=00b3711a
002c:Call KERNEL32.FindNLSStringEx(015d124c L"",08400001,019b6618
L"00000409",00000008,015d4b70
L"\\",00000001,0034eb7c,00000000,00000000,00000000) ret=00b3711a
002c:Ret  KERNEL32.FindNLSStringEx() retval=ffffffff ret=00b3711a
002c:Call advapi32.RegOpenKeyExW(80000002,019b66d4
L"SYSTEM\\CurrentControlSet\\Control\\Keyboard
Layouts\\00000409",00000000,00020019,0034eca8) ret=04918a99
002c:Call ntdll.RtlInitUnicodeString(0034ebe0,019b66d4
L"SYSTEM\\CurrentControlSet\\Control\\Keyboard Layouts\\00000409") ret=7125815b
002c:Ret  ntdll.RtlInitUnicodeString() retval=00000076 ret=7125815b
002c:Call ntdll.NtOpenKeyEx(0034eca8,00020019,0034ebe8,00000000) ret=7125818f
002c:Ret  ntdll.NtOpenKeyEx() retval=c0000034 ret=7125818f
002c:Call ntdll.RtlNtStatusToDosError(c0000034) ret=7125819b
002c:Ret  ntdll.RtlNtStatusToDosError() retval=00000002 ret=7125819b
002c:Ret  advapi32.RegOpenKeyExW() retval=00000002 ret=04918a99
002c:trace:seh:raise_exception code=c0000005 flags=0 addr=0xfd36774 ip=0fd36774
tid=002c
002c:trace:seh:raise_exception  info[0]=00000000
002c:trace:seh:raise_exception  info[1]=00000000
002c:trace:seh:raise_exception  eax=00000000 ebx=04090409 ecx=00000000
edx=019b630c esi=00000000 edi=0034ed48
002c:trace:seh:raise_exception  ebp=0034ed54 esp=0034ed10 cs=0023 ds=002b
es=002b fs=0063 gs=006b flags=00210246
002c:trace:seh:call_vectored_handlers calling handler at 0xcaa398 code=c0000005
flags=0
002c:Call KERNEL32.GetLastError() ret=00caa3c6
002c:Ret  KERNEL32.GetLastError() retval=00000000 ret=00caa3c6
002c:trace:seh:call_vectored_handlers handler at 0xcaa398 returned 0
002c:trace:seh:call_stack_handlers calling handler at 0xc79eed code=c0000005
flags=0
002c:Call KERNEL32.GetLastError() ret=00b3af80 
--- snip ---

Managed backtrace:

--- snip ---
0042:err:eventlog:ReportEventW L"Application: AWVSSAO_Launcher.exe\nFramework
Version: v4.0.30319\nDescription: The process was terminated due to an
unhandled exception.\nException Info: System.NullReferenceException\nStack:\n  
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(System.Object,
System.Delegate, S"...
0042:fixme:advapi:DeregisterEventSource (0xcafe4242) stub

Unhandled Exception: System.NullReferenceException: Object reference not set to
an instance of an object.
   at System.Windows.Forms.InputLanguage.get_LayoutName()
   at Rek.Launcher.MainWindow.OnSourceInitialized(EventArgs args)
   at System.Windows.Window.CreateSourceWindow(Boolean duringShow)
   at System.Windows.Window.CreateSourceWindowDuringShow()
   at System.Windows.Window.SafeCreateWindowDuringShow()
   at System.Windows.Window.ShowHelper(Object booleanBox)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate
callback, Object args, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source,
Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.DispatcherOperation.InvokeImpl()
   at
System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object
state)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext
executionContext, ContextCallback callback, Object state, Boolean
preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext,
ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext,
ContextCallback callback, Object state)
   at System.Windows.Threading.DispatcherOperation.Invoke()
   at System.Windows.Threading.Dispatcher.ProcessQueue()
   at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg,
IntPtr wParam, IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam,
IntPtr lParam, Boolean& handled)
   at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
   at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate
callback, Object args, Int32 numArgs)
   at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source,
Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
   at System.Windows.Threading.Dispatcher.LegacyInvokeImpl(DispatcherPriority
priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
   at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr
wParam, IntPtr lParam)
   at MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
   at System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
   at System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
   at System.Windows.Application.RunDispatcher(Object ignore)
   at System.Windows.Application.RunInternal(Window window)
   at System.Windows.Application.Run(Window window)
   at Rek.Launcher.App.Main()
--- snip ---

.NET Framework source for reference:

https://github.com/dotnet/winforms/blob/f38a7a167d8f83924d43f8d2d8f2b03034351eb7/src/System.Windows.Forms/src/System/Windows/Forms/InputLanguage.cs#L104

In this case it's enough to have the base key created, without any
subkeys/data.

--- snip ---
$ wine reg add "HKLM\System\CurrentControlSet\Control\Keyboard
Layouts\00000409"
--- snip ---

$ wine --version
wine-4.11-192-g90a1e5d943

Regards

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