bpo-35269: Fix a possible segfault involving a newly-created coroutine (GH-10585)
coro->cr_origin wasn't initialized if compute_cr_origin() failed in
PyCoro_New(), which would cause a crash during the coroutine's
deallocation.
https://bugs.python.org/issue35269
(cherry picked from commit 062a57bf4b768ef726975bcc1d34398387520147)
Co-authored-by: Zackery Spytz <zspytz@gmail.com>
diff --git a/Objects/genobject.c b/Objects/genobject.c
index e91d111..793a809 100644
--- a/Objects/genobject.c
+++ b/Objects/genobject.c
@@ -1166,11 +1166,11 @@
((PyCoroObject *)coro)->cr_origin = NULL;
} else {
PyObject *cr_origin = compute_cr_origin(origin_depth);
+ ((PyCoroObject *)coro)->cr_origin = cr_origin;
if (!cr_origin) {
Py_DECREF(coro);
return NULL;
}
- ((PyCoroObject *)coro)->cr_origin = cr_origin;
}
return coro;