From: Valery Fedorenko <federicovalenso@gmail.com>
Date: Tue, 5 Nov 2024 17:34:33 +0000 (+0300)
Subject: gh-126238: Fix possible null pointer dereference of freevars in _PyCompile_LookupArg... 
X-Git-Tag: v3.14.0a2~166
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8525c9375f25e6ec0c0b5dfcab464703f6e78082;p=thirdparty%2FPython%2Fcpython.git

gh-126238: Fix possible null pointer dereference of freevars in _PyCompile_LookupArg (#126239)

* Replace Py_DECREF by Py_XDECREF

Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com>
Co-authored-by: Peter Bierma <zintensitydev@gmail.com>
---

diff --git a/Python/compile.c b/Python/compile.c
index 4dcb9a1b5acd..ecca9b0b06ec 100644
--- a/Python/compile.c
+++ b/Python/compile.c
@@ -901,7 +901,7 @@ _PyCompile_LookupArg(compiler *c, PyCodeObject *co, PyObject *name)
             c->u->u_metadata.u_name,
             co->co_name,
             freevars);
-        Py_DECREF(freevars);
+        Py_XDECREF(freevars);
         return ERROR;
     }
     return arg;