Unhandled exception in dnsbrute_mutations.finish()

[liquidsec]

2025-01-20 20:14:50,292 [TRACE] bbot.core.event logger.py:162 Traceback (most recent call last):
  File "/home/redacted
/bbot/bbot/core/helpers/validators.py", line 34, in validate_wrapper
    return func(*args)
           ^^^^^^^^^^^
  File "/home/redacted
/bbot/bbot/core/helpers/validators.py", line 129, in validate_host
    raise ValidationError(f'Invalid hostname: "{host}"')
bbot.errors.ValidationError: Invalid hostname: "dev-s-dm-.redacted.com
"

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/redacted
/bbot/bbot/core/event/base.py", line 1811, in make_event
    data = validators.validate_host(data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/redacted
/bbot/bbot/core/helpers/validators.py", line 36, in validate_wrapper
    raise ValueError(f"Validation failed for {args}, {kwargs}: {e}")
ValueError: Validation failed for ('dev-s-dm-.redacted.com
',), {}: Invalid hostname: "dev-s-dm-.redacted.com
"

2025-01-20 20:14:50,292 [WARNING] bbot.modules.dnsbrute_mutations base.py:1502 Error sanitizing event data "dev-s-dm-.redacted.com
" for type "DNS_NAME": Validation failed for ('dev-s-dm-.redacted.com
',), {}: Invalid hostname: "dev-s-dm-.redacted.com
"
2025-01-20 20:14:50,293 [TRACE] bbot.modules.dnsbrute_mutations logger.py:162 Traceback (most recent call last):
  File "/home/redacted
/bbot/bbot/core/helpers/validators.py", line 34, in validate_wrapper
    return func(*args)
           ^^^^^^^^^^^
  File "/home/redacted
/bbot/bbot/core/helpers/validators.py", line 129, in validate_host
    raise ValidationError(f'Invalid hostname: "{host}"')
bbot.errors.ValidationError: Invalid hostname: "dev-s-dm-.redacted.com
"

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/redacted
/bbot/bbot/core/event/base.py", line 1811, in make_event
    data = validators.validate_host(data)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/redacted
/bbot/bbot/core/helpers/validators.py", line 36, in validate_wrapper
    raise ValueError(f"Validation failed for {args}, {kwargs}: {e}")
ValueError: Validation failed for ('dev-s-dm-.redacted.com
',), {}: Invalid hostname: "dev-s-dm-.redacted.com
"

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/redacted
/bbot/bbot/modules/base.py", line 492, in make_event
    event = self.scan.make_event(*args, **kwargs)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/redacted
/bbot/bbot/scanner/scanner.py", line 987, in make_event
    event = make_event(*args, **kwargs)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/redacted
/bbot/bbot/core/event/base.py", line 1814, in make_event
    raise ValidationError(f'Error sanitizing event data "{data}" for type "{event_type}": {e}')
bbot.errors.ValidationError: Error sanitizing event data "dev-s-dm-.redacted.com
" for type "DNS_NAME": Validation failed for ('dev-s-dm-.redacted.com
',), {}: Invalid hostname: "dev-s-dm-.redacted.com
"

2025-01-20 20:14:50,295 [ERROR] bbot.scanner scanner.py:1329 Error in dnsbrute_mutations.finish(): /home/redacted
/bbot/bbot/modules/base.py:536:emit_event(): 'NoneType' object has no attribute 'children'
2025-01-20 20:14:50,295 [TRACE] bbot.scanner logger.py:162 Traceback (most recent call last):
  File "/home/redacted
/bbot/bbot/scanner/scanner.py", line 1306, in _acatch
    yield
  File "/home/redacted
/bbot/bbot/modules/base.py", line 690, in _worker
    await self.finish()
  File "/home/redacted
/bbot/bbot/modules/dnsbrute_mutations.py", line 134, in finish
    await self.emit_event(
  File "/home/redacted
/bbot/bbot/modules/base.py", line 536, in emit_event
    children = event.children
               ^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'children'

[TheTechromancer]

This seems to be from an older version of bbot. Some of the lines in the traceback no longer exist in the codebase, e.g. this one:

/bbot/bbot/modules/base.py", line 536, in emit_event
    children = event.children

[liquidsec]

It was lightfuzz, but I sync with dev almost daily at this point.

When I checked the blame, it looks like it came in during the envelope rework. I'll put a lightfuzz tag on the issue.