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Issue #20437: Fixed 22 potential bugs when deleting objects references.

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This commit is contained in:
Serhiy Storchaka 2014-02-09 13:46:20 +02:00
commit dfe98a102e
15 changed files with 34 additions and 63 deletions
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6
Objects/tupleobject.c
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@ -879,8 +879,7 @@ _PyTuple_Resize(PyObject **pv, Py_ssize_t newsize)
_Py_ForgetReference((PyObject *) v);
/* DECREF items deleted by shrinkage */
for (i = newsize; i < oldsize; i++) {
Py_XDECREF(v->ob_item[i]);
v->ob_item[i] = NULL;
Py_CLEAR(v->ob_item[i]);
}
sv = PyObject_GC_Resize(PyTupleObject, v, newsize);
if (sv == NULL) {
@ -926,8 +925,7 @@ PyTuple_Fini(void)
#if PyTuple_MAXSAVESIZE > 0
/* empty tuples are used all over the place and applications may
* rely on the fact that an empty tuple is a singleton. */
Py_XDECREF(free_list[0]);
free_list[0] = NULL;
Py_CLEAR(free_list[0]);
(void)PyTuple_ClearFreeList();
#endif