linux-kernel - Re: [PATCH v4 0/2] Syscall User Redirection

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Message-ID: <202007161300.7452A2C5@keescook>
Date:   Thu, 16 Jul 2020 13:04:38 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Gabriel Krisman Bertazi <krisman@...labora.com>,
        Andy Lutomirski <luto@...nel.org>,
        Matthew Wilcox <willy@...radead.org>
Cc:     tglx@...utronix.de, linux-kernel@...r.kernel.org,
        kernel@...labora.com, gofmanp@...il.com, linux-api@...r.kernel.org,
        x86@...nel.org, linux-kselftest@...r.kernel.org, shuah@...nel.org
Subject: Re: [PATCH v4 0/2] Syscall User Redirection

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.

> Finally, one question: Which tree would this go through?

I haven't heard from several other x86 maintainers yet (which is where
I would normally expect this series to land), but I would be comfortable
taking this through my seccomp tree if I got Acks/Reviews at least from
Andy and Matthew.

Andy, Matthew, what do you think of this?

-- 
Kees Cook