327 static int
328 add_to_family (PyObject *result, int family, PyObject *dict)
329 {
330   PyObject *py_family = PyInt_FromLong (family);
when PyInt_FromLong() succeeds
331   PyObject *list = PyDict_GetItem (result, py_family);
when PyDict_GetItem() succeeds
332 
333   if (!py_family) {
taking False path
334     Py_DECREF (dict);
335     Py_XDECREF (list);
336     return FALSE;
337   }
338 
339   if (!list) {
taking False path
340     list = PyList_New (1);
341     if (!list) {
342       Py_DECREF (dict);
343       Py_DECREF (py_family);
344       return FALSE;
345     }
346 
347     PyList_SET_ITEM (list, 0, dict);
348     PyDict_SetItem (result, py_family, list);
349     Py_DECREF (list);
350   } else {
351     PyList_Append (list, dict);
when treating ob_size as 0
when PyList_Append() succeeds
ob_refcnt is now refs: 1 + N where N >= 1
'*dict' is now referenced by 1 non-stack value(s): borrowed reference returned by PyDict_GetItem().ob_item[0]
352     Py_DECREF (dict);
taking True path
ob_refcnt is now refs: 0 + N where N >= 1
353   }
354 
355   return TRUE;
356 }
ob_refcnt of '*dict' is 1 too low
was expecting final ob_refcnt to be N + 1 (for some unknown N)
due to object being referenced by: borrowed reference returned by PyDict_GetItem().ob_item[0]
but final ob_refcnt is N + 0
found 9 similar trace(s) to this

327 static int
328 add_to_family (PyObject *result, int family, PyObject *dict)
329 {
330   PyObject *py_family = PyInt_FromLong (family);
when PyInt_FromLong() succeeds
PyIntObject allocated at:   PyObject *py_family = PyInt_FromLong (family);
ob_refcnt is now refs: 1 + N where N >= 0
331   PyObject *list = PyDict_GetItem (result, py_family);
when PyDict_GetItem() succeeds
332 
333   if (!py_family) {
taking False path
334     Py_DECREF (dict);
335     Py_XDECREF (list);
336     return FALSE;
337   }
338 
339   if (!list) {
taking False path
340     list = PyList_New (1);
341     if (!list) {
342       Py_DECREF (dict);
343       Py_DECREF (py_family);
344       return FALSE;
345     }
346 
347     PyList_SET_ITEM (list, 0, dict);
348     PyDict_SetItem (result, py_family, list);
349     Py_DECREF (list);
350   } else {
351     PyList_Append (list, dict);
when treating ob_size as 0
when PyList_Append() succeeds
352     Py_DECREF (dict);
taking True path
353   }
354 
355   return TRUE;
356 }
ob_refcnt of '*py_family' is 1 too high
was expecting final ob_refcnt to be N + 0 (for some unknown N)
but final ob_refcnt is N + 1
found 5 similar trace(s) to this

327 static int
328 add_to_family (PyObject *result, int family, PyObject *dict)
329 {
330   PyObject *py_family = PyInt_FromLong (family);
when PyInt_FromLong() fails
331   PyObject *list = PyDict_GetItem (result, py_family);
calling PyDict_GetItem with NULL as argument 2 (py_family) at netifaces.c:331
PyDict_GetItem() invokes Py_TYPE() on the pointer via the PyString_CheckExact() macro, thus accessing (NULL)->ob_type
332 
333   if (!py_family) {
334     Py_DECREF (dict);
335     Py_XDECREF (list);
336     return FALSE;
337   }
338 
339   if (!list) {
340     list = PyList_New (1);
341     if (!list) {
342       Py_DECREF (dict);
343       Py_DECREF (py_family);
344       return FALSE;
345     }
346 
347     PyList_SET_ITEM (list, 0, dict);
348     PyDict_SetItem (result, py_family, list);
349     Py_DECREF (list);
350   } else {
351     PyList_Append (list, dict);
352     Py_DECREF (dict);
353   }
354 
355   return TRUE;
356 }