http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58420
--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> --- The ubsan vla-bound patch contains a thinko, it should be fixed by this patch (forgot to check for TYPE_NAME != NULL): http://gcc.gnu.org/ml/gcc-patches/2013-09/msg01209.html