Re: [PATCH 0/2] kvm: fix kmalloc bug in kvm_arch_prepare_memory_region on 5.10 stable kernel

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On Fri, Jan 26, 2024 at 07:04:51PM +0100, Paolo Bonzini wrote:
> On Fri, Jan 26, 2024 at 11:01 AM <oficerovas@xxxxxxxxxxxx> wrote:
> >
> > From: Alexander Ofitserov <oficerovas@xxxxxxxxxxxx>
> >
> > Syzkaller hit 'WARNING: kmalloc bug in kvm_arch_prepare_memory_region' bug.
> >
> > This bug is not a vulnerability and is reproduced only when running with root privileges
> > for stable 5.10 kernel.
> >
> > Bug fixed by backported commits in next two patches.
> > [PATCH 1/2] mm: vmalloc: introduce array allocation functions
> > [PATCH 2/2] KVM: use __vcalloc for very large allocations
> 
> Acked-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>

Thanks for the review, both now queued up.

greg k-h




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