Re: [PATCH] sparc: vdso: Disable UBSAN instrumentation

[Andy Shevchenko]

On Fri, Feb 23, 2024 at 08:59:45AM -0800, Kees Cook wrote:
> 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'
> 
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
> ---
> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> Cc: Andreas Larsson <andreas@xxxxxxxxxxx>
> Cc: Masahiro Yamada <masahiroy@xxxxxxxxxx>
> Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Cc: Helge Deller <deller@xxxxxx>
> Cc: Guo Ren <guoren@xxxxxxxxxx>
> Cc: sparclinux@xxxxxxxxxxxxxxx

I dunno how you applied patches, but these Cc seems to appear in a few commits
in your hardening branch.

I formatted patch from 9fd54b08040669, checked out the new branch just before
this commit and run `git am 0001-...`. I don't see them.

-- 
With Best Regards,
Andy Shevchenko