Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754808AbcDJUMs (ORCPT ); Sun, 10 Apr 2016 16:12:48 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:53106 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757337AbcDJS6f (ORCPT ); Sun, 10 Apr 2016 14:58:35 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, David Matlack , Paolo Bonzini Subject: [PATCH 4.4 015/210] KVM: VMX: avoid guest hang on invalid invept instruction Date: Sun, 10 Apr 2016 11:33:56 -0700 Message-Id: <20160410183527.220206273@linuxfoundation.org> X-Mailer: git-send-email 2.8.0 In-Reply-To: <20160410183526.651820045@linuxfoundation.org> References: <20160410183526.651820045@linuxfoundation.org> User-Agent: quilt/0.64 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 867 Lines: 31 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Paolo Bonzini commit 2849eb4f99d54925c543db12917127f88b3c38ff upstream. A guest executing an invalid invept instruction would hang because the instruction pointer was not updated. Fixes: bfd0a56b90005f8c8a004baf407ad90045c2b11e Reviewed-by: David Matlack Signed-off-by: Paolo Bonzini Signed-off-by: Greg Kroah-Hartman --- arch/x86/kvm/vmx.c | 1 + 1 file changed, 1 insertion(+) --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -7340,6 +7340,7 @@ static int handle_invept(struct kvm_vcpu if (!(types & (1UL << type))) { nested_vmx_failValid(vcpu, VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID); + skip_emulated_instruction(vcpu); return 1; }