https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117196
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- " I believe this is a compiler bug, as there doesn't seem to be a separate attribute to prevent instrumentation in this mode. " At least the above is not true. `__attribute__((no_sanitize("hwaddress")))` and `__attribute__((no_sanitize("kernel-hwaddress")))` Turns off hwasan for the function.