From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Hildenbrand <david@redhat.com>
Subject: Re: [PATCH 3/3] KVM: use vcalloc/__vcalloc for very large allocations
Date: Tue, 8 Mar 2022 15:25:11 +0100
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References: <20220308105918.615575-1-pbonzini@redhat.com>
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To: Paolo Bonzini <pbonzini@redhat.com>, linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Michael Ellerman <mpe@ellerman.id.au>, Andrew Morton <akpm@linux-foundation.org>, Dennis Zhou <dennis@kernel.org>, Tejun Heo <tj@kernel.org>, Christoph Lameter <cl@linux.com>, Johannes Weiner <hannes@cmpxchg.org>, Michal Hocko <mhocko@kernel.org>, Vladimir Davydov <vdavydov.dev@gmail.com>, linux-mm@kvack.org, cgroups@vger.kernel.org, stable@vger.kernel.org

On 08.03.22 11:59, Paolo Bonzini wrote:
> Allocations whose size is related to the memslot size can be arbitrarily
> large.  Do not use kvzalloc/kvcalloc, as those are limited to "not crazy"
> sizes that fit in 32 bits.  Now that it is available, they can use either
> vcalloc or __vcalloc, the latter if accounting is required.
> 
> Cc: stable@vger.kernel.org
> Cc: kvm@vger.kernel.org
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls")

?

Reviewed-by: David Hildenbrand <david@redhat.com>


-- 
Thanks,

David / dhildenb