41 lines
1.4 KiB
Diff
41 lines
1.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Tom Lendacky <thomas.lendacky@amd.com>
|
|
Date: Wed, 20 Dec 2017 10:55:47 +0000
|
|
Subject: [PATCH] KVM: SVM: Do not intercept new speculative control MSRs
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
CVE-2017-5753
|
|
CVE-2017-5715
|
|
|
|
Allow guest access to the speculative control MSRs without being
|
|
intercepted.
|
|
|
|
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
|
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
|
|
Signed-off-by: Andy Whitcroft <apw@canonical.com>
|
|
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
|
|
(cherry picked from commit ccaa77a824fd3e21f0b8ae6b5a66fc1ee7e35b14)
|
|
Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>
|
|
---
|
|
arch/x86/kvm/svm.c | 2 ++
|
|
1 file changed, 2 insertions(+)
|
|
|
|
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
|
|
index 92cd94d51e1f..94adf6becc2e 100644
|
|
--- a/arch/x86/kvm/svm.c
|
|
+++ b/arch/x86/kvm/svm.c
|
|
@@ -248,6 +248,8 @@ static const struct svm_direct_access_msrs {
|
|
{ .index = MSR_CSTAR, .always = true },
|
|
{ .index = MSR_SYSCALL_MASK, .always = true },
|
|
#endif
|
|
+ { .index = MSR_IA32_SPEC_CTRL, .always = true },
|
|
+ { .index = MSR_IA32_PRED_CMD, .always = true },
|
|
{ .index = MSR_IA32_LASTBRANCHFROMIP, .always = false },
|
|
{ .index = MSR_IA32_LASTBRANCHTOIP, .always = false },
|
|
{ .index = MSR_IA32_LASTINTFROMIP, .always = false },
|
|
--
|
|
2.14.2
|
|
|