1 files changed, 4 insertions, 0 deletions

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 1c6e8476b244..ff42b11d2b9c 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -52,6 +52,7 @@
 
 #include <asm/processor.h>
 #include <asm/io.h>
+#include <asm/ioctl.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 
@@ -2032,6 +2033,9 @@ static long kvm_vcpu_ioctl(struct file *filp,
         if (vcpu->kvm->mm != current->mm)
                 return -EIO;
 
+        if (unlikely(_IOC_TYPE(ioctl) != KVMIO))
+                return -EINVAL;
+
 #if defined(CONFIG_S390) || defined(CONFIG_PPC) || defined(CONFIG_MIPS)
         /*
          * Special cases: vcpu ioctls that are asynchronous to vcpu execution,