From f050971f6eb9c368239edad904b1fefdbb570a6c Mon Sep 17 00:00:00 2001
From: lazerg <lazerg2@gmail.com>
Date: Sat, 17 Oct 2026 06:48:55 +0500
Subject: [PATCH] gh-159561: Return early on non-int optval in AF_VSOCK
 setsockopt()

---
 Modules/socketmodule.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 5fec77a2b82bf7e..1b19f9169099d88 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -3424,6 +3424,7 @@ sock_setsockopt(PyObject *self, PyObject *args)
             PyErr_Format(PyExc_TypeError,
                          "setsockopt() argument 3 for AF_VSOCK must be an int (got %T)",
                          optval);
+            return NULL;
         }
         uint64_t vflag; // Must be set width of 64 bits
         /* setsockopt(level, opt, flag) */