[FYI PATCH 0/3] CVE-2020-2732

From: Paolo Bonzini
Date: Mon Feb 24 2020 - 13:56:55 EST


vmx_check_intercept is not yet fully implemented by KVM on Intel processors,
causing e.g. the I/O or MSR interception bitmaps not to be checked.
In general we can just disallow instruction emulation on behalf of L1,
but this series also implements I/O port checks.

Paolo

Oliver Upton (2):
KVM: nVMX: Refactor IO bitmap checks into helper function
KVM: nVMX: Check IO instruction VM-exit conditions

Paolo Bonzini (1):
KVM: nVMX: Don't emulate instructions in guest mode

arch/x86/kvm/vmx/nested.c | 39 ++++++++++++++++++++-----------
arch/x86/kvm/vmx/nested.h | 2 ++
arch/x86/kvm/vmx/vmx.c | 59 +++++++++++++++++++++++++++++++++++++++++------
3 files changed, 79 insertions(+), 21 deletions(-)

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