From 4e7843ea3e7d4c01ead20ded70096a819b9d3da7 Mon Sep 17 00:00:00 2001 From: "Miss Islington (bot)" <31488909+miss-islington@users.noreply.github.com> Date: Wed, 24 Jun 2026 18:25:28 +0200 Subject: [PATCH] [3.15] gh-151763: Fix NULL dereference in `os._path_normpath()` under OOM (GH-151779) (#152096) (cherry picked from commit ce8b81fff4094bd0cfb0c57193135bfc904c0ca2) Co-authored-by: Zain Nadeem --- Modules/posixmodule.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c index b58b2af3c5f..ce8b6d3ff4c 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)); }