From: Martin v. Löwis <martin@v.loewis.de>
Date: Tue, 7 Oct 2008 13:16:28 +0000 (+0000)
Subject: Issue #3740: Null-initialize module state.
X-Git-Tag: v3.0rc2~87
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4e0630cb5276512541e75bc6f4dd63f7fda9bee3;p=python

Issue #3740: Null-initialize module state.
Reviewed by Benjamin Peterson.
---

diff --git a/Misc/NEWS b/Misc/NEWS
index 1c58097856..2505bfa56a 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -15,6 +15,8 @@ What's New in Python 3.0 beta 5
 Core and Builtins
 -----------------
 
+- Issue #3740: Null-initialize module state.
+
 - Issue #3946: PyObject_CheckReadBuffer crashed on a memoryview object.
 
 - Issue #1688: On Windows, the input() prompt was not correctly displayed if it
diff --git a/Objects/moduleobject.c b/Objects/moduleobject.c
index ae01651297..7f81ce41bd 100644
--- a/Objects/moduleobject.c
+++ b/Objects/moduleobject.c
@@ -113,6 +113,7 @@ PyModule_Create2(struct PyModuleDef* module, int module_api_version)
 			Py_DECREF(m);
 			return NULL;
 		}
+		memset(m->md_state, 0, module->m_size);
 	}
 			
 	d = PyModule_GetDict((PyObject*)m);