Messages in this thread | | | Date | Tue, 9 Apr 2013 11:23:15 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [PATCH] x86: make IDT read-only |
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On Mon, 8 Apr 2013, H. Peter Anvin wrote:
> On 04/08/2013 03:43 PM, Kees Cook wrote: > > This makes the IDT unconditionally read-only. This primarily removes > > the IDT from being a target for arbitrary memory write attacks. It has > > an added benefit of also not leaking (via the "sidt" instruction) the > > kernel base offset, if it has been relocated. > > > > Signed-off-by: Kees Cook <keescook@chromium.org> > > Cc: Eric Northup <digitaleric@google.com> > > Also, tglx: does this interfere with your per-cpu IDT efforts?
I don't think so. And it's on the backburner at the moment.
Thanks,
tglx
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