Hello Florence, there might be still something that could be done to retrieve some more information (if you have still the versions installed that show the issue).
The easiest first thing might be to install the package systemd-coredump, if possible. Then open in another terminal 'journalctl -f'. And reproduce one of the "stack smashings". Then in the other terminal a "Stack trace" should appear - this should point out the library and maybe function where the issue is. Kind regards, Bernhard
