Merge branch '3.14' into backport-ac2e14b-3.14

sobolevn · web-flow · commit e38e7057a85d · 2026-07-07T19:56:51.000+03:00
diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2026-07-07-04-16-48.gh-issue-153205.5fE8QZ.rst b/Misc/NEWS.d/next/Core_and_Builtins/2026-07-07-04-16-48.gh-issue-153205.5fE8QZ.rst
@@ -0,0 +1,2 @@
+Fix a potential :exc:`SystemError` during vector calls when memory allocation fails.
+A :exc:`MemoryError` is now raised instead.
diff --git a/Python/ceval.c b/Python/ceval.c
@@ -1083,6 +1083,7 @@ _PyObjectArray_FromStackRefArray(_PyStackRef *input, Py_ssize_t nargs, PyObject
         // +1 in case PY_VECTORCALL_ARGUMENTS_OFFSET is set.
         result = PyMem_Malloc((nargs + 1) * sizeof(PyObject *));
         if (result == NULL) {
+            PyErr_NoMemory();
             return NULL;
         }
         result++;

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Fix a potential :exc:`SystemError` during vector calls when memory allocation fails.
	`2`	+A :exc:`MemoryError` is now raised instead.
Original file line number	Diff line number	Diff line change
`@@ -1083,6 +1083,7 @@ _PyObjectArray_FromStackRefArray(_PyStackRef *input, Py_ssize_t nargs, PyObject`
`1083`	`1083`	`// +1 in case PY_VECTORCALL_ARGUMENTS_OFFSET is set.`
`1084`	`1084`	`result = PyMem_Malloc((nargs + 1) * sizeof(PyObject *));`
`1085`	`1085`	`if (result == NULL) {`
	`1086`	`+ PyErr_NoMemory();`
`1086`	`1087`	`return NULL;`
`1087`	`1088`	`}`
`1088`	`1089`	`result++;`