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gh-151126: Fix missing memory errors in _interpretersmodule.c (#151624)

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stevens 2026-06-25 17:02:00 +08:00 • committed by GitHub
parent a00464bc33
commit 05225aa06a
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2 changed files with 6 additions and 2 deletions
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3
Misc/NEWS.d/next/Core_and_Builtins/2026-06-18-16-00-10.gh-issue-151126.tBqn6I.rst Normal file
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@ -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`.

5
Modules/_interpretersmodule.c
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@ -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;