commit 890dcfe4035888f70207eaac05662d6e29606214
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Sun Mar 15 12:55:39 2020 -0700
committer GitHub <noreply@github.com> Sun Mar 15 12:55:39 2020 -0700
tree 6d9325da74e72d4e6d4a963984214c8638580f4c
parent f7e32fcbd65490c921e1836c2399827d14d0eb7b

Fix a possible refleak in tupleobject.c (GH-19018)

(cherry picked from commit c81609e44eed641d3b8a137daa31ef35501c1f85)

Co-authored-by: Hai Shi <shihai1992@gmail.com>

Objects/tupleobject.c

diff --git a/Objects/tupleobject.c b/Objects/tupleobject.c
index fc2d274..bd58094 100644
--- a/Objects/tupleobject.c
+++ b/Objects/tupleobject.c
@@ -719,8 +719,10 @@
         return NULL;
     assert(PyTuple_Check(tmp));
     newobj = type->tp_alloc(type, n = PyTuple_GET_SIZE(tmp));
-    if (newobj == NULL)
+    if (newobj == NULL) {
+        Py_DECREF(tmp);
         return NULL;
+    }
     for (i = 0; i < n; i++) {
         item = PyTuple_GET_ITEM(tmp, i);
         Py_INCREF(item);