[pull] main from python:main

Lib/test/test_pyexpat.py

@@ -1069,7 +1069,9 @@ def test_set_maximum_amplification__amplification_not_exceeded(self):
         self.assertIsNotNone(parser.Parse(payload, True))
 
 
-@unittest.skipIf(expat.version_info < (2, 7, 2), "requires Expat >= 2.7.2")
+@unittest.skipIf(not hasattr(expat.XMLParserType,
+                             "SetAllocTrackerMaximumAmplification"),
+                 "requires Python compiled with Expat >= 2.7.2")
 class MemoryProtectionTest(AttackProtectionTestBase, unittest.TestCase):
 
     # NOTE: with the default Expat configuration, the billion laughs protection

Misc/NEWS.d/next/Tests/2026-02-12-12-12-00.gh-issue-144739.-fx1tN.rst

@@ -0,0 +1,3 @@
+When Python was compiled with system expat older then 2.7.2 but tests run
+with newer expat, still skip
+:class:`!test.test_pyexpat.MemoryProtectionTest`.

Modules/_functoolsmodule.c

@@ -252,6 +252,11 @@ partial_new(PyTypeObject *type, PyObject *args, PyObject *kw)
         }
         PyObject *item;
         PyObject *tot_args = PyTuple_New(tot_nargs);
+        if (tot_args == NULL) {
+            Py_DECREF(new_args);
+            Py_DECREF(pto);
+            return NULL;
+        }
         for (Py_ssize_t i = 0, j = 0; i < tot_nargs; i++) {
             if (i < npargs) {
                 item = PyTuple_GET_ITEM(pto_args, i);

Modules/timemodule.c

@@ -1170,7 +1170,8 @@ time_tzset(PyObject *self, PyObject *unused)
 
     /* Reset timezone, altzone, daylight and tzname */
     if (init_timezone(m) < 0) {
-         return NULL;
+        Py_DECREF(m);
+        return NULL;
     }
     Py_DECREF(m);
     if (PyErr_Occurred())

Objects/exceptions.c

@@ -912,7 +912,7 @@ BaseExceptionGroup_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 
     exceptions = PySequence_Tuple(exceptions);
     if (!exceptions) {
-        return NULL;
+        goto error;
     }
 
     /* We are now holding a ref to the exceptions tuple */