https://github.com/python/cpython/commit/0b92f01c59c82a111bb6b9929fbfc0f9cb1241db commit: 0b92f01c59c82a111bb6b9929fbfc0f9cb1241db branch: 3.15 author: Miss Islington (bot) <[email protected]> committer: kumaraditya303 <[email protected]> date: 2026-05-19T10:11:43+05:30 summary:
[3.15] gh-149816: fix thread safety of deletion of list slice (GH-149936) (#150003) gh-149816: fix thread safety of deletion of list slice (GH-149936) (cherry picked from commit 00ea77613b942a9e08df6e3eb74b2ccd37641ba6) Co-authored-by: Kumar Aditya <[email protected]> files: M Objects/listobject.c diff --git a/Objects/listobject.c b/Objects/listobject.c index 10e25bbdcdcb6c..c76721c5d2ac9e 100644 --- a/Objects/listobject.c +++ b/Objects/listobject.c @@ -3793,16 +3793,13 @@ list_ass_subscript_lock_held(PyObject *_self, PyObject *item, PyObject *value) lim = Py_SIZE(self) - cur - 1; } - memmove(self->ob_item + cur - i, - self->ob_item + cur + 1, - lim * sizeof(PyObject *)); + ptr_wise_atomic_memmove(self, self->ob_item + cur - i, + self->ob_item + cur + 1, lim); } cur = start + (size_t)slicelength * step; if (cur < (size_t)Py_SIZE(self)) { - memmove(self->ob_item + cur - slicelength, - self->ob_item + cur, - (Py_SIZE(self) - cur) * - sizeof(PyObject *)); + ptr_wise_atomic_memmove(self, self->ob_item + cur - slicelength, + self->ob_item + cur, Py_SIZE(self) - cur); } Py_SET_SIZE(self, Py_SIZE(self) - slicelength); _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3//lists/python-checkins.python.org Member address: [email protected]
