KVM: x86: Protect kvm_hv_msr_[get|set]_crash_data() from Spectre-v1/L1TF attacks
This fixes Spectre-v1/L1TF vulnerabilities in kvm_hv_msr_get_crash_data() and kvm_hv_msr_set_crash_data(). These functions contain index computations that use the (attacker-controlled) MSR number. Fixes: e7d9513b ("kvm/x86: added hyper-v crash msrs into kvm hyperv context") Signed-off-by:Nick Finco <nifi@google.com> Signed-off-by:
Marios Pomonis <pomonis@google.com> Reviewed-by:
Andrew Honig <ahonig@google.com> Cc: stable@vger.kernel.org Signed-off-by:
Paolo Bonzini <pbonzini@redhat.com>
parent
3c9053a2
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