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Issue #23783: Fixed memory leak in PyObject_ClearWeakRefs() in case of 

MemoryError.
This commit is contained in:
Serhiy Storchaka 2015-03-30 09:52:53 +03:00
parent 2c7b5a9d0d 4aa867959f
commit be1c60c3f6
1 changed files with 4 additions and 7 deletions
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7
Objects/weakrefobject.c
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@ -900,10 +900,8 @@ PyObject_ClearWeakRefs(PyObject *object)
if (*list != NULL) {
PyWeakReference *current = *list;
Py_ssize_t count = _PyWeakref_GetWeakrefCount(current);
int restore_error = PyErr_Occurred() ? 1 : 0;
PyObject *err_type, *err_value, *err_tb;
if (restore_error)
PyErr_Fetch(&err_type, &err_value, &err_tb);
if (count == 1) {
PyObject *callback = current->wr_callback;
@ -922,8 +920,7 @@ PyObject_ClearWeakRefs(PyObject *object)
tuple = PyTuple_New(count * 2);
if (tuple == NULL) {
if (restore_error)
PyErr_Fetch(&err_type, &err_value, &err_tb);
_PyErr_ChainExceptions(err_type, err_value, err_tb);
return;
}
@ -954,7 +951,7 @@ PyObject_ClearWeakRefs(PyObject *object)
}
Py_DECREF(tuple);
}
if (restore_error)
assert(!PyErr_Occurred());
PyErr_Restore(err_type, err_value, err_tb);
}
}