On Fri, Mar 29, 2024 at 08:37:40AM -0400, Sasha Levin wrote: > From: Kees Cook <keescook@xxxxxxxxxxxx> > > [ Upstream commit d4be85d068b4418c341f79b654399f7f0891069a ] > > The UBSAN instrumentation cannot work in the vDSO since it is executing > in userspace, so disable it in the Makefile. Fixes the build failures > such as: > > arch/sparc/vdso/vclock_gettime.c:217: undefined reference to `__ubsan_handle_shift_out_of_bounds' > > Acked-by: Sam Ravnborg <sam@xxxxxxxxxxxx> > Link: https://lore.kernel.org/all/20240224073617.GA2959352@xxxxxxxxxxxx > Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx> > Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> This is harmless to backport, but doesn't do anything. (The UBSAN changes needing this are only in Linus's tree.) -Kees -- Kees Cook
