exception in action of a breakpoint will cause crash

[swmcl]

The traceback is like: debug.loop() File "D:\WM_SHI\PROGRAM\Pycharm\venv310\lib\site-packages\winappdbg\debug.py", line 1178, in loop self.next() File "D:\WM_SHI\PROGRAM\Pycharm\venv310\lib\site-packages\winappdbg\debug.py", line 1140, in next self.dispatch() File "D:\WM_SHI\PROGRAM\Pycharm\venv310\lib\site-packages\winappdbg\debug.py", line 992, in dispatch return EventDispatcher.dispatch(self, event) File "D:\WM_SHI\PROGRAM\Pycharm\venv310\lib\site-packages\winappdbg\event.py", line 1978, in dispatch bCallHandler = pre_handler(event) File "D:\WM_SHI\PROGRAM\Pycharm\venv310\lib\site-packages\winappdbg\breakpoint.py", line 3477, in _notify_breakpoint bCallHandler = bp.run_action(event) File "D:\WM_SHI\PROGRAM\Pycharm\venv310\lib\site-packages\winappdbg\breakpoint.py", line 367, in run_action msg = msg % (action, traceback.format_exc(e)) File "C:\Users\William SHI\AppData\Local\Programs\Python\Python310\lib\traceback.py", line 183, in format_exc return "".join(format_exception(*sys.exc_info(), limit=limit, chain=chain)) File "C:\Users\William SHI\AppData\Local\Programs\Python\Python310\lib\traceback.py", line 135, in format_exception te = TracebackException(type(value), value, tb, limit=limit, compact=True) File "C:\Users\William SHI\AppData\Local\Programs\Python\Python310\lib\traceback.py", line 502, in init self.stack = StackSummary.extract( File "C:\Users\William SHI\AppData\Local\Programs\Python\Python310\lib\traceback.py", line 357, in extract if limit >= 0: TypeError: '>=' not supported between instances of 'AssertionError' and 'int'

And I think this is caused by: traceback.format_exc(e) in the: def run_action(self, event): """ Run the action callback for this breakpoint.

:param event: Event that triggered this breakpoint.
:type event: :class:`~winappdbg.event.Event`
"""
action = self.get_action()
if action is not None:
    try:
        return bool(action(event))
    except Exception as e:
        msg = "Breakpoint action callback %r raised an exception: %s"
        msg = msg % (action, traceback.format_exc(e))
        warnings.warn(msg, BreakpointCallbackWarning)
        return False
return True

of the breakpoint.py.

[MarioVilas]

That's odd, the exception is inside format_exc(). Can you try again, but temporarily replace the warning with an actual exception, so we can see the original traceback?

[MarioVilas]

Let's also try removing the "as e" part in the "except" statement and just calling format_exc() with no arguments. This should automatically pull the traceback from the last exception without having to directly pass it the Exception instance.