s4/gensec/py: avoid null deref with bad python arguments

Signed-off-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

diff --git a/source4/auth/gensec/pygensec.c b/source4/auth/gensec/pygensec.c
index 11a1c7bca31ec12a4d04699aea3dc6e8e848fc7c..bc9d6bdcb16767c9b7ce48e03c346d43de44bbe4 100644 (file)
--- a/source4/auth/gensec/pygensec.c
+++ b/source4/auth/gensec/pygensec.c
@@ -189,7 +189,7 @@ static PyObject *py_gensec_start_server(PyTypeObject *type, PyObject *args, PyOb
                if (!auth_context) {
                        PyErr_Format(PyExc_TypeError,
                                     "Expected auth.AuthContext for auth_context argument, got %s",
-                                    talloc_get_name(pytalloc_get_ptr(py_auth_context)));
+                                    pytalloc_get_name(py_auth_context));
                        return NULL;
                }
        }