[3.13] GH-140058: Clear key and value if `PyTuple_New` fails in `dictiter_iternextite...

GH-140058: Clear key and value if `PyTuple_New` fails in `dictiter_iternextitem` (GH-140059)
(cherry picked from commit ded59f7e8e93274488584574ff2336a98bc4eff6)

Co-authored-by: Sergey Miryanov <sergey.miryanov@gmail.com>

diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 6937a140f1a396830e0b1e5c1712848018770721..3ab080b3e73449670058425ce826fb6e9928f13f 100644 (file)
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -5611,8 +5611,11 @@ dictiter_iternextitem(PyObject *self)
         }
         else {
             result = PyTuple_New(2);
-            if (result == NULL)
+            if (result == NULL) {
+                Py_DECREF(key);
+                Py_DECREF(value);
                 return NULL;
+            }
             PyTuple_SET_ITEM(result, 0, key);
             PyTuple_SET_ITEM(result, 1, value);
         }