Issue #18408: Fix fileio_read() on _PyBytes_Resize() failure

bytes is NULL on _PyBytes_Resize() failure

diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
index efcc594140b25dc47f3ac4839a2e2b44220e5263..5280991727dc3dac6fce32decca1560ba6820be0 100644 (file)
--- a/Modules/_io/fileio.c
+++ b/Modules/_io/fileio.c
@@ -739,7 +739,7 @@ fileio_read(fileio *self, PyObject *args)
 
     if (n != size) {
         if (_PyBytes_Resize(&bytes, n) < 0) {
-            Py_DECREF(bytes);
+            Py_CLEAR(bytes);
             return NULL;
         }
     }