Resolve more comments on the PR 154019

Author: Abhi210

Misc/NEWS.d/next/Core_and_Builtins/2026-07-18-22-56-27.gh-issue-152125.sEPvJf.rst

@@ -1,3 +1,3 @@
-Fix a crash in the free-threaded build where :c:func:`PyList_New` could leave
+Fix a crash in the :term:`free-threaded` build where :c:func:`PyList_New` could leave
 a newly allocated list's item buffer pointer uninitialized when the backing
 array allocation failed under low memory, leading to an invalid free.

Objects/listobject.c

@@ -253,6 +253,8 @@ PyList_New(Py_ssize_t size)
         }
     }
     op->ob_item = NULL;
+    Py_SET_SIZE(op, size);
+    op->allocated = size;
 
     if (size > 0) {
 #ifdef Py_GIL_DISABLED
@@ -271,8 +273,6 @@ PyList_New(Py_ssize_t size)
             return PyErr_NoMemory();
         }
     }
-    Py_SET_SIZE(op, size);
-    op->allocated = size;
     _PyObject_GC_TRACK(op);
     return (PyObject *) op;
 }