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Date: Sat, 21 Nov 2020 20:01:10 -0800 From: Andy Lutomirski <luto@...nel.org> To: Kees Cook <keescook@...omium.org> Cc: Gabriel Krisman Bertazi <krisman@...labora.com>, Andrew Lutomirski <luto@...nel.org>, Rich Felker <dalias@...c.org>, Thomas Gleixner <tglx@...utronix.de>, Christian Brauner <christian.brauner@...ntu.com>, Peter Zijlstra <peterz@...radead.org>, Matthew Wilcox <willy@...radead.org>, Shuah Khan <shuah@...nel.org>, LKML <linux-kernel@...r.kernel.org>, Linux API <linux-api@...r.kernel.org>, "open list:KERNEL SELFTEST FRAMEWORK" <linux-kselftest@...r.kernel.org>, X86 ML <x86@...nel.org>, Paul Gofman <gofmanp@...il.com>, kernel@...labora.com Subject: Re: [PATCH v7 3/7] kernel: Implement selective syscall userspace redirection On Fri, Nov 20, 2020 at 4:18 PM Kees Cook <keescook@...omium.org> wrote: > > On Thu, Nov 19, 2020 at 12:43:05PM -0500, Gabriel Krisman Bertazi wrote: > > The existing interface could be extended with a flags field as part of > > the opcode passed in argument 2, which is currently reserved, and then > > return a FD, just like seccomp(2) does. So it is not like the current > > patches couldn't be extended in the future if needed, unless I'm > > mistaken. > > Yes, I'd prefer this series go in as-is, and if there is a need for > extending the API, arg2 can have more values added. I agree. > > -- > Kees Cook
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