commit f933e081ddfb630afe989d2e15b15e5379434ea4
author Eli Bendersky <eliben@gmail.com> Thu Nov 28 06:25:45 2013 -0800
committer Eli Bendersky <eliben@gmail.com> Thu Nov 28 06:25:45 2013 -0800
tree 00894d3391f1bf2fe7fb4e994720b96fa97723b5
parent cf6a3e2a270e78d4bb5a2d41bab57d25874da9e5

Issue #19815: Fix segfault when parsing empty namespace declaration.

Based on patches by Christian Heimes and Vajrasky Kok

Modules/_elementtree.c

diff --git a/Modules/_elementtree.c b/Modules/_elementtree.c
index b9abcac..2a7c828 100644
--- a/Modules/_elementtree.c
+++ b/Modules/_elementtree.c
@@ -2338,7 +2338,10 @@
     PyObject* sprefix = NULL;
     PyObject* suri = NULL;
 
-    suri = makestring(uri, strlen(uri));
+    if (uri)
+      suri = makestring(uri, strlen(uri));
+    else
+      suri = PyString_FromStringAndSize("", 0);
     if (!suri)
         return;