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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id t126sm5576396pfd.214.2020.07.16.13.25.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Jul 2020 13:25:44 -0700 (PDT) Date: Thu, 16 Jul 2020 13:25:43 -0700 From: Kees Cook To: Christian Brauner Cc: Gabriel Krisman Bertazi , Andy Lutomirski , Matthew Wilcox , tglx@linutronix.de, linux-kernel@vger.kernel.org, kernel@collabora.com, gofmanp@gmail.com, linux-api@vger.kernel.org, x86@kernel.org, linux-kselftest@vger.kernel.org, shuah@kernel.org, jannh@google.com Subject: Re: [PATCH v4 0/2] Syscall User Redirection Message-ID: <202007161324.E75E01B@keescook> References: <20200716193141.4068476-1-krisman@collabora.com> <202007161300.7452A2C5@keescook> <20200716202234.wryj7pj7zmwcrxxx@wittgenstein> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200716202234.wryj7pj7zmwcrxxx@wittgenstein> Sender: linux-api-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org On Thu, Jul 16, 2020 at 10:22:34PM +0200, Christian Brauner wrote: > On Thu, Jul 16, 2020 at 01:04:38PM -0700, Kees Cook wrote: > > On Thu, Jul 16, 2020 at 03:31:39PM -0400, Gabriel Krisman Bertazi wrote: > > > This is v4 of Syscall User Redirection. The implementation itself is > > > not modified from v3, it only applies the latest round of reviews to the > > > selftests. > > > > > > __NR_syscalls is not really exported in header files other than > > > asm-generic for every architecture, so it felt safer to optionally > > > expose it with a fallback to a high value. > > > > > > Also, I didn't expose tests for PR_GET as that is not currently > > > implemented. If possible, I'd have it supported by a future patchset, > > > since it is not immediately necessary to support this feature. > > > > Thanks! That all looks good to me. > > Don't have any problem with this but did this ever get exposure on > linux-api? This is the first time I see this pop up. I thought I'd added it to CC in the past, but that might have been other recent unrelated threads. Does this need a full repost there too, you think? -- Kees Cook