From: Victor Stinner <vstinner@python.org>
Date: Fri, 10 Nov 2023 13:07:45 +0000 (+0100)
Subject: [3.12] gh-109181: Fix refleak in tb_get_lineno() (#111948)
X-Git-Tag: v3.12.1~147
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4b0c875d91727440251a8427a80d8515e39d18cd;p=thirdparty%2FPython%2Fcpython.git

[3.12] gh-109181: Fix refleak in tb_get_lineno() (#111948)

PyFrame_GetCode() returns a strong reference.
---

diff --git a/Python/traceback.c b/Python/traceback.c
index b627b06df7e6..fdaf19d37074 100644
--- a/Python/traceback.c
+++ b/Python/traceback.c
@@ -111,7 +111,10 @@ static int
 tb_get_lineno(PyTracebackObject* tb) {
     PyFrameObject* frame = tb->tb_frame;
     assert(frame != NULL);
-    return PyCode_Addr2Line(PyFrame_GetCode(frame), tb->tb_lasti);
+    PyCodeObject *code = PyFrame_GetCode(frame);
+    int lineno = PyCode_Addr2Line(code, tb->tb_lasti);
+    Py_DECREF(code);
+    return lineno;
 }
 
 static PyObject *