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Date: Thu, 13 Aug 2015 15:54:47 -0700
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Subject: Re: [Regression v4.2 ?] 32-bit seccomp-BPF returned errno values
 wrong in VM?
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Andy Lutomirski <luto@amacapital.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>, Kees Cook <keescook@chromium.org>,
        David Drysdale <drysdale@google.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Will Drewry <wad@chromium.org>, Ingo Molnar <mingo@kernel.org>,
        Alok Kataria <akataria@vmware.com>, Borislav Petkov <bp@alien8.de>,
        Alexei Starovoitov <ast@plumgrid.com>,
        Frederic Weisbecker <fweisbec@gmail.com>,
        "H. Peter Anvin" <hpa@zytor.com>, Oleg Nesterov <oleg@redhat.com>,
        Steven Rostedt <rostedt@goodmis.org>, X86 ML <x86@kernel.org>
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On Thu, Aug 13, 2015 at 3:49 PM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> Does the attached patch make sense and work?

Btw, I'm not all that happy with it anyway.

I still think Denys' patch also potentially changed what audit and
strace see for %rax in the pt_regs to -ENOSYS, which I'm not convinced
is a good change.

But maybe that three-liner patch fixes the immediate problem that
David sees. David?

                  Linus