1 files changed, 3 insertions, 1 deletions

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 22cdb960660a..383f492a6603 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -651,7 +651,9 @@ int __kvm_set_memory_region(struct kvm *kvm,
         /* We can read the guest memory with __xxx_user() later on. */
         if (user_alloc &&
             ((mem->userspace_addr & (PAGE_SIZE - 1)) ||
-             !access_ok(VERIFY_WRITE, mem->userspace_addr, mem->memory_size)))
+             !access_ok(VERIFY_WRITE,
+                        (void __user *)(unsigned long)mem->userspace_addr,
+                        mem->memory_size)))
                 goto out;
         if (mem->slot >= KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
                 goto out;