From 6bfa6ad7ce5628e76c4e1ca5905ee4f4f4016e67 Mon Sep 17 00:00:00 2001
From: Rialbat <miha-wead@mail.ru>
Date: Mon, 9 Jun 2025 17:15:06 +0300
Subject: [PATCH] gh-135302: Fix NULL pointer dereference in has_kwonlydefaults
 function

---
 Python/symtable.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Python/symtable.c b/Python/symtable.c
index a3d0fff80d24a1..88f7995a9c5ad6 100644
--- a/Python/symtable.c
+++ b/Python/symtable.c
@@ -1780,6 +1780,9 @@ symtable_record_directive(struct symtable *st, identifier name, _Py_SourceLocati
 static int
 has_kwonlydefaults(asdl_arg_seq *kwonlyargs, asdl_expr_seq *kw_defaults)
 {
+    if (!kw_defaults) {
+        return 0;
+    }
     for (int i = 0; i < asdl_seq_LEN(kwonlyargs); i++) {
         expr_ty default_ = asdl_seq_GET(kw_defaults, i);
         if (default_) {