Fix the error handling in bytesio_sizeof(). (GH-10459)
bytesio_sizeof() must check if an error has occurred in _PySys_GetSizeOf().
(cherry picked from commit 36dcaab7fde5d2e54cdeff5b705b5adcb27726dd)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
diff --git a/Modules/_io/bytesio.c b/Modules/_io/bytesio.c
index e4d637c..8501f42 100644
--- a/Modules/_io/bytesio.c
+++ b/Modules/_io/bytesio.c
@@ -942,8 +942,13 @@
Py_ssize_t res;
res = _PyObject_SIZE(Py_TYPE(self));
- if (self->buf && !SHARED_BUF(self))
- res += _PySys_GetSizeOf(self->buf);
+ if (self->buf && !SHARED_BUF(self)) {
+ Py_ssize_t s = _PySys_GetSizeOf(self->buf);
+ if (s == -1) {
+ return NULL;
+ }
+ res += s;
+ }
return PyLong_FromSsize_t(res);
}