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KVM: x86: Add memory barrier on vmcs field lookup
authorAndrew Honig <ahonig@google.com>
Wed, 10 Jan 2018 18:12:03 +0000 (10:12 -0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Thu, 11 Jan 2018 17:20:31 +0000 (18:20 +0100)
commit75f139aaf896d6fdeec2e468ddfa4b2fe469bf40
treee95c8451e33be341ccfaa853dd7a2927857882ef
parentbebc6082da0a9f5d47a1ea2edc099bf671058bd4
KVM: x86: Add memory barrier on vmcs field lookup

This adds a memory barrier when performing a lookup into
the vmcs_field_to_offset_table.  This is related to
CVE-2017-5753.

Signed-off-by: Andrew Honig <ahonig@google.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/vmx.c