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authorLinus Torvalds <torvalds@linux-foundation.org>2019-02-07 15:53:26 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-02-07 15:53:26 -0700
commite303a067ceede918fbf90ff3dc8affbb98bad4e8 (patch)
tree13f5048bee966ccf8af6e64c3454c5d8bcc7586e /arch/x86/kvm/vmx/nested.c
parentee6c0737a0253d6e79063f0a74c1101fdaad0812 (diff)
parentecec76885bcfe3294685dc363fd1273df0d5d65f (diff)
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Paolo Bonzini: "Three security fixes" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: nVMX: unconditionally cancel preemption timer in free_nested (CVE-2019-7221) KVM: x86: work around leak of uninitialized stack contents (CVE-2019-7222) kvm: fix kvm_ioctl_create_device() reference counting (CVE-2019-6974)
Diffstat (limited to 'arch/x86/kvm/vmx/nested.c')
-rw-r--r--arch/x86/kvm/vmx/nested.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c
index 8ff20523661b..d8ea4ebd79e7 100644
--- a/arch/x86/kvm/vmx/nested.c
+++ b/arch/x86/kvm/vmx/nested.c
@@ -211,6 +211,7 @@ static void free_nested(struct kvm_vcpu *vcpu)
if (!vmx->nested.vmxon && !vmx->nested.smm.vmxon)
return;
+ hrtimer_cancel(&vmx->nested.preemption_timer);
vmx->nested.vmxon = false;
vmx->nested.smm.vmxon = false;
free_vpid(vmx->nested.vpid02);