From a12690ef49e8fc8a3af4c5f1757eb3caffb35e03 Mon Sep 17 00:00:00 2001 From: Ritvik Pasham Date: Wed, 13 Nov 2024 06:51:01 -0500 Subject: [PATCH] gh-126341: add release check to `__iter__` method of `memoryview` (#126759) Co-authored-by: blurb-it[bot] <43283697+blurb-it[bot]@users.noreply.github.com> Co-authored-by: Peter Bierma Co-authored-by: Victor Stinner Co-authored-by: sobolevn --- Lib/test/test_buffer.py | 2 ++ .../2024-11-12-19-24-00.gh-issue-126341.5SdAe1.rst | 1 + Objects/memoryobject.c | 1 + 3 files changed, 4 insertions(+) create mode 100644 Misc/NEWS.d/next/Core_and_Builtins/2024-11-12-19-24-00.gh-issue-126341.5SdAe1.rst diff --git a/Lib/test/test_buffer.py b/Lib/test/test_buffer.py index ae938d12c94..cb38a69e390 100644 --- a/Lib/test/test_buffer.py +++ b/Lib/test/test_buffer.py @@ -3910,6 +3910,8 @@ class TestBufferProtocol(unittest.TestCase): self.assertRaises(ValueError, memoryview, m) # memoryview.cast() self.assertRaises(ValueError, m.cast, 'c') + # memoryview.__iter__() + self.assertRaises(ValueError, m.__iter__) # getbuffer() self.assertRaises(ValueError, ndarray, m) # memoryview.tolist() diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2024-11-12-19-24-00.gh-issue-126341.5SdAe1.rst b/Misc/NEWS.d/next/Core_and_Builtins/2024-11-12-19-24-00.gh-issue-126341.5SdAe1.rst new file mode 100644 index 00000000000..c2436d2ebf4 --- /dev/null +++ b/Misc/NEWS.d/next/Core_and_Builtins/2024-11-12-19-24-00.gh-issue-126341.5SdAe1.rst @@ -0,0 +1 @@ +Now :exc:`ValueError` is raised instead of :exc:`SystemError` when trying to iterate over a released :class:`memoryview` object. diff --git a/Objects/memoryobject.c b/Objects/memoryobject.c index d4672e8198c..25634f997ac 100644 --- a/Objects/memoryobject.c +++ b/Objects/memoryobject.c @@ -3356,6 +3356,7 @@ memory_iter(PyObject *seq) PyErr_BadInternalCall(); return NULL; } + CHECK_RELEASED(seq); PyMemoryViewObject *obj = (PyMemoryViewObject *)seq; int ndims = obj->view.ndim; if (ndims == 0) {