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authorAlex Williamson <alex.williamson@redhat.com>2012-06-29 09:56:24 -0600
committerMarcelo Tosatti <mtosatti@redhat.com>2012-07-02 21:10:30 -0300
commit326cf0334bacfdf43039cf75997a022b9e51535d (patch)
tree568fc99ad9bdde8fa382ff6657568c2e2ec2e4fc /virt
parentf36992e31284131a978d07bb14e582ce67b46b64 (diff)
downloadlinux-326cf0334bacfdf43039cf75997a022b9e51535d.tar.gz
KVM: Sanitize KVM_IRQFD flags
We only know of one so far. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/eventfd.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c
index c307c24c147..7d7e2aaffec 100644
--- a/virt/kvm/eventfd.c
+++ b/virt/kvm/eventfd.c
@@ -340,6 +340,9 @@ kvm_irqfd_deassign(struct kvm *kvm, struct kvm_irqfd *args)
int
kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args)
{
+ if (args->flags & ~KVM_IRQFD_FLAG_DEASSIGN)
+ return -EINVAL;
+
if (args->flags & KVM_IRQFD_FLAG_DEASSIGN)
return kvm_irqfd_deassign(kvm, args);