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

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Date:   Fri,  7 Apr 2023 12:27:07 -0700
From:   Kees Cook <keescook@...omium.org>
To:     linux-hardening@...r.kernel.org
Cc:     Kees Cook <keescook@...omium.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>,
        "Nick Desaulniers" <ndesaulniers@...gle.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: [PATCH v2 01/10] kunit: tool: Enable CONFIG_FORTIFY_SOURCE under UML

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
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