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authorLinus Walleij <linus.walleij@linaro.org>2019-04-08 13:03:09 +0200
committerLinus Walleij <linus.walleij@linaro.org>2019-04-08 13:03:09 +0200
commit26af34079f1d8299932303cfd2b376b9cf55a35c (patch)
treef1a9824855fae569aa51c2109a5929715143093d /arch/x86/kvm/vmx/nested.c
parent27157af66324d529b43231c12b5d1e1a3e9fa620 (diff)
parent79a3aaa7b82e3106be97842dedfd8429248896e6 (diff)
Merge tag 'v5.1-rc3' into devel
Linux 5.1-rc3
Diffstat (limited to 'arch/x86/kvm/vmx/nested.c')
-rw-r--r--arch/x86/kvm/vmx/nested.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index f24a2c225070..153e539c29c9 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -2585,6 +2585,11 @@ static int nested_check_host_control_regs(struct kvm_vcpu *vcpu,
!nested_host_cr4_valid(vcpu, vmcs12->host_cr4) ||
!nested_cr3_valid(vcpu, vmcs12->host_cr3))
return -EINVAL;
+
+ if (is_noncanonical_address(vmcs12->host_ia32_sysenter_esp, vcpu) ||
+ is_noncanonical_address(vmcs12->host_ia32_sysenter_eip, vcpu))
+ return -EINVAL;
+
/*
* If the load IA32_EFER VM-exit control is 1, bits reserved in the
* IA32_EFER MSR must be 0 in the field for that register. In addition,