https://github.com/python/cpython/commit/dc01c84ed066ec19704f018d3925dc2fe812a2a8
commit: dc01c84ed066ec19704f018d3925dc2fe812a2a8
branch: 3.12
author: Miss Islington (bot) <[email protected]>
committer: serhiy-storchaka <[email protected]>
date: 2024-02-08T11:18:38+02:00
summary:

[3.12] gh-115136: Fix possible NULL deref in getpath_joinpath() (GH-115137) 
(GH-115157)

(cherry picked from commit 9e90313320a2af2d9ff7049ed3842344ed236630)

Signed-off-by: Artem Chernyshev <[email protected]>
Co-authored-by: Artem Chernyshev <[email protected]>

files:
M Modules/getpath.c

diff --git a/Modules/getpath.c b/Modules/getpath.c
index b9914a0c8e9d03..0a3100007511b1 100644
--- a/Modules/getpath.c
+++ b/Modules/getpath.c
@@ -259,6 +259,10 @@ getpath_joinpath(PyObject *Py_UNUSED(self), PyObject *args)
     }
     /* Convert all parts to wchar and accumulate max final length */
     wchar_t **parts = (wchar_t **)PyMem_Malloc(n * sizeof(wchar_t *));
+    if (parts == NULL) {
+        PyErr_NoMemory();
+        return NULL;
+    }
     memset(parts, 0, n * sizeof(wchar_t *));
     Py_ssize_t cchFinal = 0;
     Py_ssize_t first = 0;

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