On 21/07/19 16:01, Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
>
> Shall help finding use-after-free bugs earlier.
>
> Suggested-by: Liran Alon <liran.alon@xxxxxxxxxx>
> Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
> ---
> arch/x86/kvm/vmx/nested.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
> index 4cdab4b4eff1..ced9fba32598 100644
> --- a/arch/x86/kvm/vmx/nested.c
> +++ b/arch/x86/kvm/vmx/nested.c
> @@ -234,7 +234,9 @@ static void free_nested(struct kvm_vcpu *vcpu)
> vmx->vmcs01.shadow_vmcs = NULL;
> }
> kfree(vmx->nested.cached_vmcs12);
> + vmx->nested.cached_vmcs12 = NULL;
> kfree(vmx->nested.cached_shadow_vmcs12);
> + vmx->nested.cached_shadow_vmcs12 = NULL;
> /* Unpin physical memory we referred to in the vmcs02 */
> if (vmx->nested.apic_access_page) {
> kvm_release_page_dirty(vmx->nested.apic_access_page);
> --
> 2.16.4
>
Queued, thanks.
Paolo
