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Date: Sat, 21 Oct 2017 01:25:55 +0200
From: Paolo Bonzini <>
To: Kees Cook <>,
Cc: David Windsor <>,,
Subject: Re: [PATCH 00/23] Hardened usercopy whitelisting

On 21/10/2017 00:40, Paolo Bonzini wrote:
> This breaks KVM completely on x86, due to two ioctls
> (KVM_GET/SET_CPUID2) accessing the cpuid_entries field of struct
> kvm_vcpu_arch.
> There's also another broken ioctl, KVM_XEN_HVM_CONFIG, but it is
> obsolete and not a big deal at all.
> I can post some patches, but probably not until the beginning of
> November due to travelling.  Please do not send this too close to the
> beginning of the merge window.

Sleeping is overrated, sending patches now...


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