linux-kernel - Re: [PATCH v1 1/4] s390/kvm: VSIE: stop leaking host addresses

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Message-ID: <4d7ea3de-61b7-af89-a3d4-5a4b5749f667@redhat.com>
Date:   Mon, 4 Jan 2021 16:36:50 +0100
From:   David Hildenbrand <david@...hat.com>
To:     Claudio Imbrenda <imbrenda@...ux.ibm.com>
Cc:     linux-kernel@...r.kernel.org, borntraeger@...ibm.com,
        frankja@...ux.ibm.com, kvm@...r.kernel.org,
        linux-s390@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v1 1/4] s390/kvm: VSIE: stop leaking host addresses

>> In that case, it's pretty much a random number (of a random page used
>> as a leave page table) and does not let g1 identify locations of
>> symbols etc. If so, I don't think this is a "clear security issue"
>> and suggest squashing this into the actual fix (#p4 I assume).
> 
> yeah __maybe__ I overstated the importance ;)
> 
> But I would still like to keep it as a separate patch, looks more
> straightforward to me
>  

I don't see a need to split this up. Just fix it right away.


-- 
Thanks,

David / dhildenb