linux-kernel - Re: [PATCH -next] kcsan, ubsan: Make KCSAN+UBSAN work together

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Message-ID: <3b8e1707-4e46-560d-a1ea-22e336655ba6@infradead.org>
Date:   Tue, 19 Nov 2019 13:07:43 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Marco Elver <elver@...gle.com>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        kasan-dev <kasan-dev@...glegroups.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        "Paul E. McKenney" <paulmck@...nel.org>
Subject: Re: [PATCH -next] kcsan, ubsan: Make KCSAN+UBSAN work together

On 11/19/19 10:57 AM, Marco Elver wrote:
> Context:
> http://lkml.kernel.org/r/fb7e25d8-aba4-3dcf-7761-cb7ecb3ebb71@infradead.org
> 
> Reported-by: Randy Dunlap <rdunlap@...radead.org>
> Signed-off-by: Marco Elver <elver@...gle.com>

Acked-by: Randy Dunlap <rdunlap@...radead.org> # build-tested

Thanks.

> ---
>  kernel/kcsan/Makefile | 1 +
>  lib/Makefile          | 1 +
>  2 files changed, 2 insertions(+)
> 
> diff --git a/kernel/kcsan/Makefile b/kernel/kcsan/Makefile
> index dd15b62ec0b5..df6b7799e492 100644
> --- a/kernel/kcsan/Makefile
> +++ b/kernel/kcsan/Makefile
> @@ -1,6 +1,7 @@
>  # SPDX-License-Identifier: GPL-2.0
>  KCSAN_SANITIZE := n
>  KCOV_INSTRUMENT := n
> +UBSAN_SANITIZE := n
>  
>  CFLAGS_REMOVE_core.o = $(CC_FLAGS_FTRACE)
>  
> diff --git a/lib/Makefile b/lib/Makefile
> index 778ab704e3ad..9d5bda950f5f 100644
> --- a/lib/Makefile
> +++ b/lib/Makefile
> @@ -279,6 +279,7 @@ obj-$(CONFIG_UBSAN) += ubsan.o
>  
>  UBSAN_SANITIZE_ubsan.o := n
>  KASAN_SANITIZE_ubsan.o := n
> +KCSAN_SANITIZE_ubsan.o := n
>  CFLAGS_ubsan.o := $(call cc-option, -fno-stack-protector) $(DISABLE_STACKLEAK_PLUGIN)
>  
>  obj-$(CONFIG_SBITMAP) += sbitmap.o
> 


-- 
~Randy