Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date: Fri, 20 Oct 2017 20:04:11 -0700
From: Kees Cook <>
To: Paolo Bonzini <>
Cc: "" <>, David Windsor <>, 
	Linux-MM <>, LKML <>
Subject: Re: [PATCH 00/23] Hardened usercopy whitelisting

On Fri, Oct 20, 2017 at 4:25 PM, Paolo Bonzini <> wrote:
> 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...

Oh awesome, thank you very much for tracking this down and building fixes!

I'll insert these into the usercopy whitelisting series, and see if I
can find any similar cases.



Kees Cook
Pixel Security

Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.