pythongh-126594: Fix typeobject.c wrap_buffer() cast

Reject flags smaller than INT_MIN.
vstinner · Nov 12, 2024 · 019df14 · 019df14
1 parent 6b2a196
commit 019df14
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
@@ -9314,13 +9314,13 @@ wrap_buffer(PyObject *self, PyObject *args, void *wrapped)
     if (flags == -1 && PyErr_Occurred()) {
         return NULL;
     }
-    if (flags > INT_MAX) {
+    if (flags > INT_MAX || flags < INT_MIN) {
         PyErr_SetString(PyExc_OverflowError,
                         "buffer flags too large");
         return NULL;
     }
 
-    return _PyMemoryView_FromBufferProc(self, Py_SAFE_DOWNCAST(flags, Py_ssize_t, int),
+    return _PyMemoryView_FromBufferProc(self, (int)flags,
                                         (getbufferproc)wrapped);
 }