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Fix a possible crash due to PyType_FromSpecWithBases() (GH-10304)

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If the PyObject_MALLOC() call failed in PyType_FromSpecWithBases(),
PyObject_Free() would be called on a static string in type_dealloc().
This commit is contained in:
Zackery Spytz 2019-05-09 12:33:32 -06:00 • committed by Petr Viktorin
parent e6576248e5
commit 0613c1e481
1 changed files with 1 additions and 0 deletions
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Objects/typeobject.c
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@ -2995,6 +2995,7 @@ PyType_FromSpecWithBases(PyType_Spec *spec, PyObject *bases)
size_t len = strlen(old_doc)+1; size_t len = strlen(old_doc)+1;
char *tp_doc = PyObject_MALLOC(len); char *tp_doc = PyObject_MALLOC(len);
if (tp_doc == NULL) { if (tp_doc == NULL) {
type->tp_doc = NULL;
PyErr_NoMemory(); PyErr_NoMemory();
goto fail; goto fail;
} }