8000 gh-111178: fix UBSan failures in `Modules/selectmodule.c` by picnixz · Pull Request #129792 · python/cpython · GitHub
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gh-111178: fix UBSan failures in Modules/selectmodule.c #129792

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Merged
merged 13 commits into from
Feb 24, 2025
Merged

gh-111178: fix UBSan failures in Modules/selectmodule.c #129792

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1791bf0
fix UBSan failures for `pollObject`
picnixz Feb 6, 2025
74a3605
fix UBSan failures for `devpollObject`
picnixz Feb 6, 2025
ff0d904
fix UBSan failures for `pyEpoll_Object`
picnixz Feb 6, 2025
08462e8
fix UBSan failures for `kqueue_event_Object`
picnixz Feb 6, 2025
bfbed25
fix UBSan failures for `kqueue_tracking_after_fork`
picnixz Feb 6, 2025
bfb9b81
fix UBSan failures for `kqueue_queue_Object`
picnixz Feb 6, 2025
abd3754
suppress unused return values
picnixz Feb 6, 2025
5042aa8
Merge remote-tracking branch 'upstream/main' into fix/ubsan/select-11…
picnixz Feb 7, 2025
6f30e55
fix compilation
picnixz Feb 7, 2025
8a1c309
fix compilation
picnixz Feb 7, 2025
7a0ca33
fix semantic naming
picnixz Feb 22, 2025
ff6a56d
Merge branch 'main' into fix/ubsan/select-111178
picnixz Feb 22, 2025
91dfee4
declare `_select_exec` function as being static
picnixz Feb 23, 2025
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fix UBSan failures for pyEpoll_Object
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@picnixz
picnixz committed Feb 6, 2025
commit ff0d90442d8ec6f10a8016efa6a1b148218f96d5
24 changes: 14 additions & 10 deletions Modules/selectmodule.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1284,6 +1284,8 @@ typedef struct {
SOCKET epfd; /* epoll control file descriptor */
} pyEpoll_Object;

#define pyEpoll_Object_CAST(op) ((pyEpoll_Object *)(op))

static PyObject *
pyepoll_err_closed(void)
{
Expand Down Expand Up @@ -1386,13 +1388,14 @@ select_epoll_impl(PyTypeObject *type, int sizehint, int flags)


static void
pyepoll_dealloc(pyEpoll_Object *self)
pyepoll_dealloc(PyObject *op)
{
PyTypeObject* type = Py_TYPE(self);
pyEpoll_Object *self = pyEpoll_Object_CAST(op);
PyTypeObject *type = Py_TYPE(self);
(void)pyepoll_internal_close(self);
freefunc epoll_free = PyType_GetSlot(type, Py_tp_free);
epoll_free((PyObject *)self);
Py_DECREF((PyObject *)type);
epoll_free(self);
Py_DECREF(type);
}

/*[clinic input]
Expand All @@ -1417,13 +1420,14 @@ select_epoll_close_impl(pyEpoll_Object *self)
}


static PyObject*
pyepoll_get_closed(pyEpoll_Object *self, void *Py_UNUSED(ignored))
static PyObject *
pyepoll_get_closed(PyObject *op, void *Py_UNUSED(closure))
{
if (self->epfd < 0)
pyEpoll_Object *self = pyEpoll_Object_CAST(op);
if (self->epfd < 0) {
Py_RETURN_TRUE;
else
Py_RETURN_FALSE;
}
Py_RETURN_FALSE;
}

/*[clinic input]
Expand Down Expand Up @@ -1716,7 +1720,7 @@ select_epoll___exit___impl(pyEpoll_Object *self, PyObject *exc_type,
}

static PyGetSetDef pyepoll_getsetlist[] = {
{"closed", (getter)pyepoll_get_closed, NULL,
{"closed", pyepoll_get_closed, NULL,
"True if the epoll handler is closed"},
{0},
};
Expand Down
0