Merge branch 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm

* 'kvm-updates/2.6.32' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: add support for change_pte mmu notifiers
  KVM: MMU: add SPTE_HOST_WRITEABLE flag to the shadow ptes
  KVM: MMU: dont hold pagecount reference for mapped sptes pages
  KVM: Prevent overflow in KVM_GET_SUPPORTED_CPUID
  KVM: VMX: flush TLB with INVEPT on cpu migration
  KVM: fix LAPIC timer period overflow
  KVM: s390: fix memsize >= 4G
  KVM: SVM: Handle tsc in svm_get_msr/svm_set_msr correctly
  KVM: SVM: Fix tsc offset adjustment when running nested

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index be451ee44249..9b9695322f56 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1591,6 +1591,8 @@ static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
 
         if (cpuid->nent < 1)
                 goto out;
+        if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
+                cpuid->nent = KVM_MAX_CPUID_ENTRIES;
         r = -ENOMEM;
         cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry2) * cpuid->nent);
         if (!cpuid_entries)