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39 lines
644 B
Python
39 lines
644 B
Python
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"""
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_PyType_Lookup() returns a borrowed reference.
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This attacks PyObject_GenericSetAttr().
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NB. on my machine this crashes in 2.5 debug but not release.
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"""
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class A(object):
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pass
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class B(object):
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def __del__(self):
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print "hi"
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del C.d
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class D(object):
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def __set__(self, obj, value):
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self.hello = 42
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class C(object):
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d = D()
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def g():
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pass
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c = C()
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a = A()
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a.cycle = a
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a.other = B()
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lst = [None] * 1000000
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i = 0
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del a
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while 1:
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c.d = 42 # segfaults in PyMethod_New(im_func=D.__set__, im_self=d)
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lst[i] = c.g # consume the free list of instancemethod objects
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i += 1
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