Messages in this thread | | | Date | Sun, 7 Apr 2024 19:46:50 -0400 | From | Sasha Levin <> | Subject | Re: [PATCH AUTOSEL 6.8 69/98] sparc: vdso: Disable UBSAN instrumentation |
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On Fri, Mar 29, 2024 at 07:05:37PM -0700, Kees Cook wrote: >On Fri, Mar 29, 2024 at 08:37:40AM -0400, Sasha Levin wrote: >> From: Kees Cook <keescook@chromium.org> >> >> [ 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@ravnborg.org> >> Link: https://lore.kernel.org/all/20240224073617.GA2959352@ravnborg.org >> Signed-off-by: Kees Cook <keescook@chromium.org> >> Signed-off-by: Sasha Levin <sashal@kernel.org> > >This is harmless to backport, but doesn't do anything. (The UBSAN >changes needing this are only in Linus's tree.)
I'll drop this and the rest of the ubsan commits you've pointed out, thanks!
-- Thanks, Sasha
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