https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56456 Bug 56456 depends on bug 102453, which changed state.
Bug 102453 Summary: buffer overflow by atomic built-ins not diagnosed https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102453 What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED