linux-hardening - [PATCH 0/2] lkdtm/bugs: Check that a per-task stack canary exists

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Date:   Fri, 22 Oct 2021 15:38:24 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Kees Cook <keescook@...omium.org>,
        Ard Biesheuvel <ardb@...nel.org>,
        Arnd Bergmann <arnd@...db.de>, Shuah Khan <shuah@...nel.org>,
        linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        linux-hardening@...r.kernel.org
Subject: [PATCH 0/2] lkdtm/bugs: Check that a per-task stack canary exists

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(-)

-- 
2.30.2