gh-95756: Free and NULL-out code caches when needed (GH-98181)

diff --git a/Objects/codeobject.c b/Objects/codeobject.c
index 7a0080c08c7b54732c2c85de523e39ea954352ed..8920b1db2cadb7d236133f3acbb5cc87dcd9df61 100644 (file)
--- a/Objects/codeobject.c
+++ b/Objects/codeobject.c
@@ -2238,6 +2238,7 @@ _PyStaticCode_Dealloc(PyCodeObject *co)
         Py_CLEAR(co->_co_cached->_co_freevars);
         Py_CLEAR(co->_co_cached->_co_varnames);
         PyMem_Free(co->_co_cached);
+        co->_co_cached = NULL;
     }
     co->co_extra = NULL;
     if (co->co_weakreflist != NULL) {

diff --git a/Objects/frameobject.c b/Objects/frameobject.c
index bd1608e0d75a6e3e5e92d37d1bd5fedfcb55ff73..8b4494a5fe82fd88d533a60672a39cbb85e1249c 100644 (file)
--- a/Objects/frameobject.c
+++ b/Objects/frameobject.c
@@ -651,6 +651,8 @@ add_load_fast_null_checks(PyCodeObject *co)
         Py_CLEAR(co->_co_cached->_co_cellvars);
         Py_CLEAR(co->_co_cached->_co_freevars);
         Py_CLEAR(co->_co_cached->_co_varnames);
+        PyMem_Free(co->_co_cached);
+        co->_co_cached = NULL;
     }
 }