From: Kees Cook <kees@kernel.org>
To: Mark Brown <broonie@kernel.org>
Cc: Christian Brauner <brauner@kernel.org>,
"Rick P. Edgecombe" <rick.p.edgecombe@intel.com>,
Deepak Gupta <debug@rivosinc.com>,
Szabolcs Nagy <Szabolcs.Nagy@arm.com>,
"H.J. Lu" <hjl.tools@gmail.com>,
Florian Weimer <fweimer@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
Shuah Khan <shuah@kernel.org>,
linux-kernel@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
jannh@google.com, Andrew Morton <akpm@linux-foundation.org>,
Yury Khrustalev <yury.khrustalev@arm.com>,
Wilco Dijkstra <wilco.dijkstra@arm.com>,
linux-kselftest@vger.kernel.org, linux-api@vger.kernel.org
Subject: Re: [PATCH v20 4/8] fork: Add shadow stack support to clone3()
Date: Fri, 5 Sep 2025 09:00:51 -0700 [thread overview]
Message-ID: <202509050900.8A01B1E6@keescook> (raw)
In-Reply-To: <0ff8b70e-283f-4d56-8bab-bcae11cd5bdb@sirena.org.uk>
On Fri, Sep 05, 2025 at 04:43:22PM +0100, Mark Brown wrote:
> On Fri, Sep 05, 2025 at 05:21:59PM +0200, Christian Brauner wrote:
> > On Tue, Sep 02, 2025 at 11:21:48AM +0100, Mark Brown wrote:
>
> > > + .shadow_stack_token = args.shadow_stack_token,
>
> > I'm not sure why this has to be named "shadow_stack_token" I think
> > that's just confusing and we should just call it "shadow_stack" and be
> > done with it. It's also a bit long of a field name imho.
>
> I'm not hugely attached to the name, if you want to rename that's
> perfectly fine by me. My thinking was that there's a potential
> confusion with it being a pointer to the base of the shadow stack by
> comparison with the existing "stack" but I do agree that the resulting
> name is quite long and if someone does actually get confused they should
> discover the problem fairly rapidly in testing. ss_token would shorter
> but the abbreviation is less clear, whatever name you prefer is fine by
> me.
Bike shed: shstk_token?
--
Kees Cook
next prev parent reply other threads:[~2025-09-05 16:00 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-02 10:21 [PATCH v20 0/8] fork: Support shadow stacks in clone3() Mark Brown
2025-09-02 10:21 ` [PATCH v20 1/8] arm64/gcs: Return a success value from gcs_alloc_thread_stack() Mark Brown
2025-09-02 10:21 ` [PATCH v20 2/8] Documentation: userspace-api: Add shadow stack API documentation Mark Brown
2025-09-02 10:21 ` [PATCH v20 3/8] selftests: Provide helper header for shadow stack testing Mark Brown
2025-09-02 10:21 ` [PATCH v20 4/8] fork: Add shadow stack support to clone3() Mark Brown
2025-09-02 21:02 ` Catalin Marinas
2025-09-03 10:01 ` Mark Brown
2025-09-03 15:34 ` Catalin Marinas
2025-09-05 15:21 ` Christian Brauner
2025-09-05 15:43 ` Mark Brown
2025-09-05 15:53 ` Edgecombe, Rick P
2025-09-05 16:00 ` Kees Cook [this message]
2025-09-05 16:02 ` Mark Brown
2025-09-15 14:29 ` Christian Brauner
2025-09-15 14:38 ` Mark Brown
2025-09-02 10:21 ` [PATCH v20 5/8] selftests/clone3: Remove redundant flushes of output streams Mark Brown
2025-09-02 10:21 ` [PATCH v20 6/8] selftests/clone3: Factor more of main loop into test_clone3() Mark Brown
2025-09-02 10:21 ` [PATCH v20 7/8] selftests/clone3: Allow tests to flag if -E2BIG is a valid error code Mark Brown
2025-09-02 10:21 ` [PATCH v20 8/8] selftests/clone3: Test shadow stack support Mark Brown
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