https://bugs.freedesktop.org/show_bug.cgi?id=98028
--- Comment #6 from Daniel Scharrer daniel@constexpr.org --- Created attachment 127008 --> https://bugs.freedesktop.org/attachment.cgi?id=127008&action=edit Valgrind log
I managed to get a Valgrind log, the backtrace of the first invalid read seems consistent.
Here are the options I used, let me know if you want me to try any others:
valgrind --tool=memcheck --error-limit=no --log-file=valgrind-%p.log -v --trace-children=yes --track-origins=yes --read-var-info=yes --redzone-size=1024 --
I also noticed that the game's engine (Unity) overrides operator new and friends, maybe that's involved somehow.