ssue #27942: Fix memory leak in codeobject.c

2 files changed, 4 insertions, 0 deletions

diff --git a/Misc/NEWS b/Misc/NEWS
index 7512e1a..10ec9e0 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -110,6 +110,8 @@ Core and Builtins
 - Issue #27443: __length_hint__() of bytearray iterators no longer return a
   negative integer for a resized bytearray.
 
+- Issue #27942: Fix memory leak in codeobject.c
+
 Library
 -------
 
diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index 9df87b0..c334626 100644
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -69,6 +69,7 @@ intern_string_constants(PyObject *tuple)
             intern_string_constants(v);
         }
         else if (PyFrozenSet_CheckExact(v)) {
+            PyObject *w = v;
             PyObject *tmp = PySequence_Tuple(v);
             if (tmp == NULL) {
                 PyErr_Clear();
@@ -81,6 +82,7 @@ intern_string_constants(PyObject *tuple)
                 }
                 else {
                     PyTuple_SET_ITEM(tuple, i, v);
+                    Py_DECREF(w);
                     modified = 1;
                 }
             }