linux-hardening - Re: [PATCH v4 RESEND 0/7] Handle faults in KUnit tests

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Date: Tue, 9 Apr 2024 11:28:06 -0600
From: Shuah Khan <skhan@...uxfoundation.org>
To: Mickaël Salaün <mic@...ikod.net>,
 Brendan Higgins <brendanhiggins@...gle.com>, David Gow
 <davidgow@...gle.com>, Rae Moar <rmoar@...gle.com>
Cc: Alan Maguire <alan.maguire@...cle.com>, Borislav Petkov <bp@...en8.de>,
 Dave Hansen <dave.hansen@...ux.intel.com>,
 "Eric W . Biederman" <ebiederm@...ssion.com>, "H . Peter Anvin"
 <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
 James Morris <jamorris@...ux.microsoft.com>,
 Kees Cook <keescook@...omium.org>, Luis Chamberlain <mcgrof@...nel.org>,
 "Madhavan T . Venkataraman" <madvenka@...ux.microsoft.com>,
 Marco Pagani <marpagan@...hat.com>, Paolo Bonzini <pbonzini@...hat.com>,
 Sean Christopherson <seanjc@...gle.com>, Stephen Boyd <sboyd@...nel.org>,
 Thara Gopinath <tgopinath@...rosoft.com>,
 Thomas Gleixner <tglx@...utronix.de>, Vitaly Kuznetsov
 <vkuznets@...hat.com>, Zahra Tarkhani <ztarkhani@...rosoft.com>,
 kunit-dev@...glegroups.com, kvm@...r.kernel.org,
 linux-hardening@...r.kernel.org, linux-hyperv@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-kselftest@...r.kernel.org,
 linux-security-module@...r.kernel.org, linux-um@...ts.infradead.org,
 x86@...nel.org, Shuah Khan <skhan@...uxfoundation.org>
Subject: Re: [PATCH v4 RESEND 0/7] Handle faults in KUnit tests

On 4/8/24 01:46, Mickaël Salaün wrote:
> Hi,
> 
> This patch series teaches KUnit to handle kthread faults as errors, and
> it brings a few related fixes and improvements.
> 
> Shuah, everything should be OK now, could you please merge this series?
> 
> All these tests pass (on top of v6.8):
> ./tools/testing/kunit/kunit.py run --alltests
> ./tools/testing/kunit/kunit.py run --alltests --arch x86_64
> ./tools/testing/kunit/kunit.py run --alltests --arch arm64 \
>    --cross_compile=aarch64-linux-gnu-
> 
> I also built and ran KUnit tests as a kernel module.
> 
> A new test case check NULL pointer dereference, which wasn't possible
> before.
> 
> This is useful to test current kernel self-protection mechanisms or
> future ones such as Heki: https://github.com/heki-linux
> 
> Previous versions:
> v3: https://lore.kernel.org/r/20240319104857.70783-1-mic@digikod.net
> v2: https://lore.kernel.org/r/20240301194037.532117-1-mic@digikod.net
> v1: https://lore.kernel.org/r/20240229170409.365386-1-mic@digikod.net
> 
> Regards,
> 
> Mickaël Salaün (7):
>    kunit: Handle thread creation error
>    kunit: Fix kthread reference
>    kunit: Fix timeout message
>    kunit: Handle test faults
>    kunit: Fix KUNIT_SUCCESS() calls in iov_iter tests
>    kunit: Print last test location on fault
>    kunit: Add tests for fault
> 

Thank you for the resend. Applied to linux-kselftest kunit branch
for Linux 6.10-rc1.

thanks,
-- Shuah