https://github.com/python/cpython/commit/05225aa06a4c5eceaa2eb29e99c2d44d2dbfe295
commit: 05225aa06a4c5eceaa2eb29e99c2d44d2dbfe295
branch: main
author: stevens <[email protected]>
committer: sobolevn <[email protected]>
date: 2026-06-25T12:02:00+03:00
summary:
gh-151126: Fix missing memory errors in `_interpretersmodule.c` (#151624)
files:
A
Misc/NEWS.d/next/Core_and_Builtins/2026-06-18-16-00-10.gh-issue-151126.tBqn6I.rst
M Modules/_interpretersmodule.c
diff --git
a/Misc/NEWS.d/next/Core_and_Builtins/2026-06-18-16-00-10.gh-issue-151126.tBqn6I.rst
b/Misc/NEWS.d/next/Core_and_Builtins/2026-06-18-16-00-10.gh-issue-151126.tBqn6I.rst
new file mode 100644
index 00000000000000..d495df43ede932
--- /dev/null
+++
b/Misc/NEWS.d/next/Core_and_Builtins/2026-06-18-16-00-10.gh-issue-151126.tBqn6I.rst
@@ -0,0 +1,3 @@
+Fix a crash when sharing :class:`memoryview` objects between interpreters
+fails due to running out of memory. It now raises a proper
+:exc:`MemoryError`.
diff --git a/Modules/_interpretersmodule.c b/Modules/_interpretersmodule.c
index d024dee906ded3..15bfd35a80806c 100644
--- a/Modules/_interpretersmodule.c
+++ b/Modules/_interpretersmodule.c
@@ -144,7 +144,7 @@ xibufferview_from_buffer(PyTypeObject *cls, Py_buffer
*view, int64_t interpid)
Py_buffer *copied = PyMem_RawMalloc(sizeof(Py_buffer));
if (copied == NULL) {
- return NULL;
+ return PyErr_NoMemory();
}
/* This steals the view->obj reference */
*copied = *view;
@@ -152,7 +152,7 @@ xibufferview_from_buffer(PyTypeObject *cls, Py_buffer
*view, int64_t interpid)
xibufferview *self = PyObject_Malloc(sizeof(xibufferview));
if (self == NULL) {
PyMem_RawFree(copied);
- return NULL;
+ return PyErr_NoMemory();
}
PyObject_Init(&self->base, cls);
*self = (xibufferview){
@@ -277,6 +277,7 @@ _pybuffer_shared(PyThreadState *tstate, PyObject *obj,
_PyXIData_t *data)
{
struct xibuffer *view = PyMem_RawMalloc(sizeof(struct xibuffer));
if (view == NULL) {
+ PyErr_NoMemory();
return -1;
}
view->used = 0;
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