From: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
Date: Sun, 15 Jun 2025 19:00:58 +0000 (+0200)
Subject: gh-111178: fix UBSan failures for `RemoteUnwinderObject` (#135539)
X-Git-Tag: v3.15.0a1~1295
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=54e29ea4eb7b54c888fd5764eef2215535e4d862;p=thirdparty%2FPython%2Fcpython.git

gh-111178: fix UBSan failures for `RemoteUnwinderObject` (#135539)
---

diff --git a/Modules/_remote_debugging_module.c b/Modules/_remote_debugging_module.c
index 389889a2cf4c..c2421cac6bdb 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);