Re: [PATCH] KVM: x86: fix wbinvd_dirty_mask use-after-free

[Radim KrÄmÃÅ]

2016-10-21 12:39-0400, Ido Yariv:
> vcpu->arch.wbinvd_dirty_mask may still be used after freeing it,
> corrupting memory. For example, the following call trace may set a bit
> in an already freed cpu mask:
>     kvm_arch_vcpu_load
>     vcpu_load
>     vmx_free_vcpu_nested
>     vmx_free_vcpu
>     kvm_arch_vcpu_free
> 
> Fix this by deferring freeing of wbinvd_dirty_mask.
> 
> Cc: stable@xxxxxxxxxxxxxxx
> Signed-off-by: Ido Yariv <ido@xxxxxxxxxx>
> ---

Applied, thanks.