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2674
2020 Aug 05
0
[PATCH] x86/paravirt: Add missing noinstr to arch_local*() helpers
...t; Add missing noinstr to arch_local*() helpers, as they may be called from
> noinstr code.
>
> On a KCSAN config with CONFIG_PARAVIRT=y, syzbot stumbled across corrupt
Cute, so I've been working on adding objtool support for this a little:
https://lkml.kernel.org/r/20200803143231.GE2674 at hirez.programming.kicks-ass.net
> diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
> index 3d2afecde50c..a606f2ba2b5e 100644
> --- a/arch/x86/include/asm/paravirt.h
> +++ b/arch/x86/include/asm/paravirt.h
> @@ -760,27 +760,27 @@ bool __raw_callee_sav...