Re: [Regression v4.2 ?] 32-bit seccomp-BPF returned errno values wrong in VM?

[Kees Cook]

On Thu, Aug 13, 2015 at 3:54 PM, Linus Torvalds
<torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> On Thu, Aug 13, 2015 at 3:49 PM, Linus Torvalds
> <torvalds@xxxxxxxxxxxxxxxxxxxx> 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?

Your patch fixes it for me. The seccomp compat selftests pass again
with audit enabled.

-Kees

-- 
Kees Cook
Chrome OS Security
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