From mboxrd@z Thu Jan  1 00:00:00 1970
Reply-To: kernel-hardening@lists.openwall.com
Message-ID: <1449770155.8579.2.camel@gmail.com>
From: Daniel Micay <danielmicay@gmail.com>
Date: Thu, 10 Dec 2015 12:55:55 -0500
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References: <20151209172101.GA70633@davidb.org>
	 <CAGXu5j+0oBHdS7vTQp_0ubuwvUftosYZCx8RJPXh7v7eYQncEQ@mail.gmail.com>
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Subject: Re: [kernel-hardening] Self Introduction
To: kernel-hardening@lists.openwall.com
Cc: Catalin Marinas <catalin.marinas@arm.com>
List-ID: <kernel-hardening.lists.openwall.com>


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> ARMv8 64-bit: ??

The worst case scenario would be doing something like the x86_64 UDEREF.

> x86 pre-late-Broadwell: nothing upstream (though UDEREF in PaX exists)

It's worth noting that there's the pre-PCID implementation (slow and
vulnerable to races) and then two choices of better implementations when
PCID is available. You probably know that already, but it's not obvious
to everyone else.
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