https://github.com/python/cpython/commit/ce8b81fff4094bd0cfb0c57193135bfc904c0ca2
commit: ce8b81fff4094bd0cfb0c57193135bfc904c0ca2
branch: main
author: Zain Nadeem <[email protected]>
committer: StanFromIreland <[email protected]>
date: 2026-06-24T16:56:10+01:00
summary:
gh-151763: Fix NULL dereference in `os._path_normpath()` under OOM (#151779)
files:
M Modules/posixmodule.c
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 1f1b7fa729c01c..c52d2e7d5bfbd9 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));
}
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