From: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Date: Wed, 26 Apr 2023 15:50:19 +0000 (-0700)
Subject: gh-103879: Fix refleak in super specialization (#103882)
X-Git-Tag: v3.12.0b1~412
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6c4124d11ab731f3774e3454ded33df089bd317e;p=thirdparty%2FPython%2Fcpython.git

gh-103879: Fix refleak in super specialization (#103882)
---

diff --git a/Python/specialize.c b/Python/specialize.c
index 9230087a78be..33a3c4561c7c 100644
--- a/Python/specialize.c
+++ b/Python/specialize.c
@@ -544,8 +544,10 @@ _Py_Specialize_LoadSuperAttr(PyObject *global_super, PyObject *class, PyObject *
         write_u32(cache->self_type_version, Py_TYPE(self)->tp_version_tag);
         write_obj(cache->method, res);  // borrowed
         instr->op.code = LOAD_SUPER_ATTR_METHOD;
+        Py_DECREF(res);
         goto success;
     }
+    Py_DECREF(res);
     SPECIALIZATION_FAIL(LOAD_SUPER_ATTR, SPEC_FAIL_SUPER_NOT_METHOD);
 
 fail: