linux-hardening - Re: [PATCH v1 2/8] kunit: Handle thread creation error

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Message-ID: <202402291021.43ED7D2@keescook>
Date: Thu, 29 Feb 2024 10:21:48 -0800
From: Kees Cook <keescook@...omium.org>
To: Mickaël Salaün <mic@...ikod.net>
Cc: Brendan Higgins <brendanhiggins@...gle.com>,
	David Gow <davidgow@...gle.com>, Rae Moar <rmoar@...gle.com>,
	Shuah Khan <skhan@...uxfoundation.org>,
	Alan Maguire <alan.maguire@...cle.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H . Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.com>,
	James Morris <jamorris@...ux.microsoft.com>,
	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>,
	Wanpeng Li <wanpengli@...cent.com>,
	Zahra Tarkhani <ztarkhani@...rosoft.com>, kvm@...r.kernel.org,
	linux-hardening@...r.kernel.org, linux-hyperv@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org,
	linux-um@...ts.infradead.org, x86@...nel.org
Subject: Re: [PATCH v1 2/8] kunit: Handle thread creation error

On Thu, Feb 29, 2024 at 06:04:03PM +0100, Mickaël Salaün wrote:
> Previously, if a thread creation failed (e.g. -ENOMEM), the function was
> called (kunit_catch_run_case or kunit_catch_run_case_cleanup) without
> marking the test as failed.  Instead, fill try_result with the error
> code returned by kthread_run(), which will mark the test as failed and
> print "internal error occurred...".
> 
> Cc: Brendan Higgins <brendanhiggins@...gle.com>
> Cc: David Gow <davidgow@...gle.com>
> Cc: Rae Moar <rmoar@...gle.com>
> Cc: Shuah Khan <skhan@...uxfoundation.org>
> Signed-off-by: Mickaël Salaün <mic@...ikod.net>

Reviewed-by: Kees Cook <keescook@...omium.org>

-- 
Kees Cook