Re: [PATCH v2 14/36] x86/entry/64/compat: Disable SYSENTER and SYSCALL32 entries

From: Borislav Petkov
Date: Thu Oct 08 2015 - 11:40:40 EST


On Mon, Oct 05, 2015 at 05:48:02PM -0700, Andy Lutomirski wrote:
> We've disabled the vDSO helpers to call them, so turn off the
> entries entirely (temporarily) in preparation for cleaning them up.
>
> Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx>
> ---
> arch/x86/entry/entry_64_compat.S | 13 +++++++++++++
> 1 file changed, 13 insertions(+)

What do we say for the case when someone bisects, lands at this patch
and, as Murphy would generally do it, has a reproducer which is calling
SYSENTER/SYSCALL32?

Tough luck?

--
Regards/Gruss,
Boris.

ECO tip #101: Trim your mails when you reply.
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