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Code Issues Projects Releases Packages Wiki Activity Actions 11

fix use after free (closes #24552)

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This commit is contained in:
Benjamin Peterson 2015-07-02 16:18:38 -05:00
parent b7a688b3a4
commit 80f78a3efc
3 changed files with 15 additions and 1 deletions
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12
Lib/test/pickletester.py
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@ -1039,6 +1039,18 @@ class AbstractPickleTests(unittest.TestCase):
self.assertEqual(B(x), B(y), detail)
self.assertEqual(x.__dict__, y.__dict__, detail)
def test_newobj_not_class(self):
# Issue 24552
global SimpleNewObj
save = SimpleNewObj
o = object.__new__(SimpleNewObj)
b = self.dumps(o, 4)
try:
SimpleNewObj = 42
self.assertRaises((TypeError, pickle.UnpicklingError), self.loads, b)
finally:
SimpleNewObj = save
# Register a type with copyreg, with extension code extcode. Pickle
# an object of that type. Check that the resulting pickle uses opcode
# (EXT[124]) under proto 2, and not in proto 1.