From e89c7f1fc0648a5145b5206149be787f9e06f101 Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
 <31488909+miss-islington@users.noreply.github.com>
Date: Sun, 15 Jun 2025 22:54:23 +0200
Subject: [PATCH] [3.14] gh-111178: fix UBSan failures for
 `RemoteUnwinderObject` (GH-135539) (#135547)

---
 Modules/_remote_debugging_module.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Modules/_remote_debugging_module.c b/Modules/_remote_debugging_module.c
index 564eaef621db..416298d7479d 100644
--- a/Modules/_remote_debugging_module.c
+++ b/Modules/_remote_debugging_module.c
@@ -214,6 +214,8 @@ typedef struct {
 #endif
 } RemoteUnwinderObject;
 
+#define RemoteUnwinder_CAST(op) ((RemoteUnwinderObject *)(op))
+
 typedef struct
 {
     int lineno;
@@ -2913,8 +2915,9 @@ static PyMethodDef RemoteUnwinder_methods[] = {
 };
 
 static void
-RemoteUnwinder_dealloc(RemoteUnwinderObject *self)
+RemoteUnwinder_dealloc(PyObject *op)
 {
+    RemoteUnwinderObject *self = RemoteUnwinder_CAST(op);
     PyTypeObject *tp = Py_TYPE(self);
     if (self->code_object_cache) {
         _Py_hashtable_destroy(self->code_object_cache);
-- 
2.47.3