linux-hardening - Re: [PATCH v2 01/10] kunit: tool: Enable CONFIG_FORTIFY

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Message-ID: <CAKwvOdk5JjB21FU85Zxubs+LV8bTY-az598V1hvewndAfhohQA@mail.gmail.com>
Date:   Fri, 7 Apr 2023 16:33:43 -0700
From:   Nick Desaulniers <ndesaulniers@...gle.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     linux-hardening@...r.kernel.org, Andy Shevchenko <andy@...nel.org>,
        Cezary Rojewski <cezary.rojewski@...el.com>,
        Puyou Lu <puyou.lu@...il.com>, Mark Brown <broonie@...nel.org>,
        Josh Poimboeuf <jpoimboe@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Brendan Higgins <brendan.higgins@...ux.dev>,
        David Gow <davidgow@...gle.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Alexander Potapenko <glider@...gle.com>,
        Zhaoyang Huang <zhaoyang.huang@...soc.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Miguel Ojeda <ojeda@...nel.org>,
        Alexander Lobakin <aleksander.lobakin@...el.com>,
        Liam Howlett <liam.howlett@...cle.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        Dan Williams <dan.j.williams@...el.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Yury Norov <yury.norov@...il.com>,
        "Jason A. Donenfeld" <Jason@...c4.com>,
        Sander Vanheule <sander@...nheule.net>,
        Eric Biggers <ebiggers@...gle.com>,
        "Masami Hiramatsu (Google)" <mhiramat@...nel.org>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Daniel Latypov <dlatypov@...gle.com>,
        José Expósito <jose.exposito89@...il.com>,
        linux-kernel@...r.kernel.org, kunit-dev@...glegroups.com
Subject: Re: [PATCH v2 01/10] kunit: tool: Enable CONFIG_FORTIFY_SOURCE under UML

On Fri, Apr 7, 2023 at 12:27 PM Kees Cook <keescook@...omium.org> wrote:
>
> Since commit ba38961a069b ("um: Enable FORTIFY_SOURCE"), it's possible
> to run the FORTIFY tests under UML. Enable CONFIG_FORTIFY_SOURCE when
> running with --altests to gain additional coverage, and by default under

two L's in alltest?

> UML.
>
> Signed-off-by: Kees Cook <keescook@...omium.org>
> ---
>  tools/testing/kunit/configs/all_tests.config | 2 ++
>  tools/testing/kunit/configs/arch_uml.config  | 3 +++
>  2 files changed, 5 insertions(+)
>
> diff --git a/tools/testing/kunit/configs/all_tests.config b/tools/testing/kunit/configs/all_tests.config
> index f990cbb73250..0393940c706a 100644
> --- a/tools/testing/kunit/configs/all_tests.config
> +++ b/tools/testing/kunit/configs/all_tests.config
> @@ -9,6 +9,8 @@ CONFIG_KUNIT=y
>  CONFIG_KUNIT_EXAMPLE_TEST=y
>  CONFIG_KUNIT_ALL_TESTS=y
>
> +CONFIG_FORTIFY_SOURCE=y
> +
>  CONFIG_IIO=y
>
>  CONFIG_EXT4_FS=y
> diff --git a/tools/testing/kunit/configs/arch_uml.config b/tools/testing/kunit/configs/arch_uml.config
> index e824ce43b05a..54ad8972681a 100644
> --- a/tools/testing/kunit/configs/arch_uml.config
> +++ b/tools/testing/kunit/configs/arch_uml.config
> @@ -3,3 +3,6 @@
>  # Enable virtio/pci, as a lot of tests require it.
>  CONFIG_VIRTIO_UML=y
>  CONFIG_UML_PCI_OVER_VIRTIO=y
> +
> +# Enable FORTIFY_SOURCE for wider checking.
> +CONFIG_FORTIFY_SOURCE=y
> --
> 2.34.1
>


-- 
Thanks,
~Nick Desaulniers