commit 9c0408d9b68d8f65aad22ca0767f154d6b9f526c
author Xiang Zhang <angwerzx@126.com> Wed Mar 22 14:32:52 2017 +0800
committer GitHub <noreply@github.com> Wed Mar 22 14:32:52 2017 +0800
tree e9a6b641e5edeb4fb4bb04b85ad41de70c4b3811
parent e6a55dd8391651a7d3a97b6215e70e48e628d3d7

bpo-29876: fix DECREF for NULL value in subelement() (GH-760)

Modules/_elementtree.c

diff --git a/Modules/_elementtree.c b/Modules/_elementtree.c
index 7a0aeda..94dc5b7 100644
--- a/Modules/_elementtree.c
+++ b/Modules/_elementtree.c
@@ -524,8 +524,9 @@
     }
 
     elem = element_new(tag, attrib);
-
     Py_DECREF(attrib);
+    if (elem == NULL)
+        return NULL;
 
     if (element_add_subelement(parent, elem) < 0) {
         Py_DECREF(elem);