From: Zain Nadeem <zainnadeemzainnadeem80@gmail.com>
Date: Wed, 24 Jun 2026 15:56:10 +0000 (+0500)
Subject: gh-151763: Fix NULL dereference in `os._path_normpath()` under OOM (#151779)
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ce8b81fff4094bd0cfb0c57193135bfc904c0ca2;p=thirdparty%2FPython%2Fcpython.git

gh-151763: Fix NULL dereference in `os._path_normpath()` under OOM (#151779)
---

diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 1f1b7fa729c0..c52d2e7d5bfb 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -6145,6 +6145,9 @@ os__path_normpath_impl(PyObject *module, path_t *path)
     else {
         result = PyUnicode_FromWideChar(norm_path, norm_len);
     }
+    if (result == NULL) {
+        return NULL;
+    }
     if (PyBytes_Check(path->object)) {
         Py_SETREF(result, PyUnicode_EncodeFSDefault(result));
     }