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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id ip10sm10555664pjb.40.2021.10.22.15.38.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Oct 2021 15:38:34 -0700 (PDT) From: Kees Cook To: Greg Kroah-Hartman Cc: Kees Cook , Ard Biesheuvel , Arnd Bergmann , Shuah Khan , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH 0/2] lkdtm/bugs: Check that a per-task stack canary exists Date: Fri, 22 Oct 2021 15:38:24 -0700 Message-Id: <20211022223826.330653-1-keescook@chromium.org> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=848; h=from:subject; bh=AmtTDFE416bOnzEP4shIh6R7CaOVhj0S565/1wjTphY=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBhcz1hzWEbn4jVDkstel7Z8g0GFX+J1a2ZvpD5wjEX xqHBLOqJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCYXM9YQAKCRCJcvTf3G3AJlfJD/ 9SnIHLhM4ffgxebcLffDtztM1BzHoph5vLlpGalPedFmaOulLliESziV1vjSJvjpirSG8Bqn71vqLX 7KZpK/sMl1C8P3YOuu39Xs3Nt0YqjCvZFqximihZ/8GyOaAhjvazbyuY9k35a6hC6ZtK72eItSq+/0 oiQzg3uFNWVpWNKoJwzF1JmdiSlNe+uRS8nlbCyexqBdHqyDdu7e6XJTQ+H3uYIh3Mbmd04iqCYrdP Hwx7q6OWNSC2ChrK7cFcWkhEOEtqcG1kzGN7kNVglSeBnVJJwDy6lySK2zXENDgnETMozXcCD03rId IrXxRnW5cCkyAdUHURYj9Vl2qjNkZY2jznik0ulXhGW3Tdm7zsa9IEXCZlREQ9duR975U8ivysG7rJ OlAXK7fDMrRxC4XN9vfpqhMtmUnoCMF8xkHqzaox2cCqbBTEViE0nKpBh9B3anApPns4nsSHQoYykw W3dAxNiiMmq/LLPDn8vwi+Wr42V7MXUwl4elNiSgac8UZIorXSFwrlbHQD0OSHuYBqO6xjmjGE6dwa S8FZmOY/XojkB7I+1dp+7WyfDeLPg9mHZSMkjKXmTEQkF8SRsLYm7n3veUe01xrrKxwWTtW8dRf3QU IkWLbW6rbEt/87lvH8ic4g521/aDa8oAZ48MycKUIYeN+fUrCJyNhdimUdDw== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org Hi, This adds a test for per-task stack canaries to help verify the latest work in this area for arm[1]. Most architectures already support this under GCC, though there are some that are still lagging[2]. -Kees [1] https://lore.kernel.org/r/20211021142516.1843042-1-ardb@kernel.org [2] https://github.com/KSPP/linux/issues/29 Kees Cook (2): selftests/lkdtm: Add way to repeat a test lkdtm/bugs: Check that a per-task stack canary exists drivers/misc/lkdtm/bugs.c | 77 +++++++++++++++++++++++++ drivers/misc/lkdtm/core.c | 1 + drivers/misc/lkdtm/lkdtm.h | 1 + tools/testing/selftests/lkdtm/config | 1 + tools/testing/selftests/lkdtm/run.sh | 10 +++- tools/testing/selftests/lkdtm/tests.txt | 1 + 6 files changed, 90 insertions(+), 1 deletion(-)