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Kirill Smelkov
cpython
Commits
704e2d37
Commit
704e2d37
authored
Jul 26, 2013
by
Christian Heimes
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Issue #18560: Fix potential NULL pointer dereference in sum()
parent
9ee5c37c
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Misc/NEWS
Misc/NEWS
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Python/bltinmodule.c
Python/bltinmodule.c
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Misc/NEWS
View file @
704e2d37
...
...
@@ -12,6 +12,8 @@ What's New in Python 3.3.3 release candidate 1?
Core and Builtins
-----------------
- Issue #18560: Fix potential NULL pointer dereference in sum().
- Issue #15905: Fix theoretical buffer overflow in handling of sys.argv[0],
prefix and exec_prefix if the operation system does not obey MAXPATHLEN.
...
...
Python/bltinmodule.c
View file @
704e2d37
...
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@@ -2009,6 +2009,11 @@ builtin_sum(PyObject *self, PyObject *args)
}
/* Either overflowed or is not an int. Restore real objects and process normally */
result
=
PyLong_FromLong
(
i_result
);
if
(
result
==
NULL
)
{
Py_DECREF
(
item
);
Py_DECREF
(
iter
);
return
NULL
;
}
temp
=
PyNumber_Add
(
result
,
item
);
Py_DECREF
(
result
);
Py_DECREF
(
item
);
...
...
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