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| author | Paolo Bonzini <pbonzini@redhat.com> | 2016-03-18 16:53:29 +0100 |
|---|---|---|
| committer | Sasha Levin <sasha.levin@oracle.com> | 2016-04-18 08:49:37 -0400 |
| commit | 7aae44c91487a1f7210a1fb7e3ed608f6f6ef653 (patch) | |
| tree | ccac51d04c3eae8e44452ba3bf50eb0fce82082e | |
| parent | 65d83d876f80afef16c27b62d79e160bf73df652 (diff) | |
| download | lwn-7aae44c91487a1f7210a1fb7e3ed608f6f6ef653.tar.gz lwn-7aae44c91487a1f7210a1fb7e3ed608f6f6ef653.zip | |
KVM: VMX: avoid guest hang on invalid invept instruction
[ Upstream commit 2849eb4f99d54925c543db12917127f88b3c38ff ]
A guest executing an invalid invept instruction would hang
because the instruction pointer was not updated.
Cc: stable@vger.kernel.org
Fixes: bfd0a56b90005f8c8a004baf407ad90045c2b11e
Reviewed-by: David Matlack <dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
| -rw-r--r-- | arch/x86/kvm/vmx.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 49cce7508a54..d9c11f3f5b18 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6740,6 +6740,7 @@ static int handle_invept(struct kvm_vcpu *vcpu) if (!(types & (1UL << type))) { nested_vmx_failValid(vcpu, VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID); + skip_emulated_instruction(vcpu); return 1; } |