Move the initialization of some pointers earlier. The problem is
that if we call Py_DECREF(frame) like we do if allocating locals fails,
frame_dealloc() will try to use these bogus values and crash.
diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index a933c4a..3a073b6 100644
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -642,6 +642,7 @@
f->f_trace = NULL;
f->f_exc_type = f->f_exc_value = f->f_exc_traceback = NULL;
}
+ f->f_stacktop = f->f_valuestack;
f->f_builtins = builtins;
Py_XINCREF(back);
f->f_back = back;
@@ -672,7 +673,6 @@
f->f_lineno = code->co_firstlineno;
f->f_iblock = 0;
- f->f_stacktop = f->f_valuestack;
_PyObject_GC_TRACK(f);
return f;
}