From 065836ec9c76ed7134562438f5a760a5e20b27e4 Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@haypocalc.com>
Date: Thu, 27 Oct 2011 01:56:33 +0200
Subject: [PATCH] PyUnicode_FSDecoder() ensures that the decoded string is
 ready

---
 Objects/unicodeobject.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index ec4aed6e2d..ef2839a125 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -3318,6 +3318,10 @@ PyUnicode_FSDecoder(PyObject* arg, void* addr)
             return 0;
         }
     }
+    if (PyUnicode_READY(output) < 0) {
+        Py_DECREF(output);
+        return 0;
+    }
     if (findchar(PyUnicode_DATA(output), PyUnicode_KIND(output),
                  PyUnicode_GET_LENGTH(output), 0, 1) >= 0) {
         PyErr_SetString(PyExc_TypeError, "embedded NUL character");
-- 
2.40.0