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Peter Anvin" , Ingo Molnar , James Morris , Luis Chamberlain , "Madhavan T . Venkataraman" , Marco Pagani , Paolo Bonzini , Sean Christopherson , Stephen Boyd , Thara Gopinath , Thomas Gleixner , Vitaly Kuznetsov , Wanpeng Li , Zahra Tarkhani , kvm@vger.kernel.org, linux-hardening@vger.kernel.org, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org, linux-um@lists.infradead.org, x86@kernel.org Subject: Re: [PATCH v1 3/8] kunit: Fix kthread reference Message-ID: <202402291022.A8E2AB8A@keescook> References: <20240229170409.365386-1-mic@digikod.net> <20240229170409.365386-4-mic@digikod.net> Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20240229170409.365386-4-mic@digikod.net> On Thu, Feb 29, 2024 at 06:04:04PM +0100, Mickaël Salaün wrote: > There is a race condition when a kthread finishes after the deadline and > before the call to kthread_stop(), which may lead to use after free. > > Cc: Brendan Higgins > Cc: David Gow > Cc: Rae Moar > Cc: Shuah Khan > Signed-off-by: Mickaël Salaün Reviewed-by: Kees Cook -- Kees Cook