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Description
Crash report
What happened?
>>> import ast>>> dir(ast.AST)['__class__','__delattr__','__dict__','__dir__','__doc__','__eq__','__format__','__ge__','__getattribute__','__gt__','__hash__','__init__','__init_subclass__','__le__','__lt__','__match_args__','__module__','__ne__','__new__','__reduce__','__reduce_ex__','__repr__','__setattr__','__sizeof__','__str__','__subclasshook__','_attributes','_fields']>>> del ast.AST._fields>>> dir(ast.AST)['__class__','__delattr__','__dict__','__dir__','__doc__','__eq__','__format__','__ge__','__getattribute__','__gt__','__hash__','__init__','__init_subclass__','__le__','__lt__','__match_args__','__module__','__ne__','__new__','__reduce__','__reduce_ex__','__repr__','__setattr__','__sizeof__','__str__','__subclasshook__','_attributes']>>> t = ast.AST(arg1=123)Segmentation fault
This happens becausefields variable isnull-pointer here, moreover it was previously checked for nullhere.
CPython versions tested on:
3.11
Operating systems tested on:
Linux
Output from running 'python -VV' on the command line:
Python 3.11.9 (main, Oct 28 2024, 23:26:29) [GCC 13.2.0]