Re: [PATCH v2] x86: um: vdso: Disable UBSAN instrumentation

[Kees Cook]

On Mon, May 13, 2024 at 03:10:24PM +0200, Roberto Sassu wrote:
> From: Roberto Sassu <roberto.sassu@xxxxxxxxxx>
> 
> 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:
> 
>   CALL    scripts/checksyscalls.sh
>   VDSO    arch/x86/um/vdso/vdso.so.dbg
> arch/x86/um/vdso/vdso.so.dbg: undefined symbols found
> 
> Signed-off-by: Roberto Sassu <roberto.sassu@xxxxxxxxxx>

This is fixed differently (and more universally) here:
https://lore.kernel.org/lkml/20240506133544.2861555-1-masahiroy@xxxxxxxxxx/

-- 
Kees Cook