diff --git a/net/vmw_vsock/vsock_addr.c b/net/vmw_vsock/vsock_addr.c
index 909de26cb0e7..223b9660a759 100644
--- a/net/vmw_vsock/vsock_addr.c
+++ b/net/vmw_vsock/vsock_addr.c
@@ -22,13 +22,15 @@ EXPORT_SYMBOL_GPL(vsock_addr_init);
 
 int vsock_addr_validate(const struct sockaddr_vm *addr)
 {
+	__u8 svm_valid_flags = VMADDR_FLAG_TO_HOST;
+
 	if (!addr)
 		return -EFAULT;
 
 	if (addr->svm_family != AF_VSOCK)
 		return -EAFNOSUPPORT;
 
-	if (addr->svm_zero[0] != 0)
+	if (addr->svm_flags & ~svm_valid_flags)
 		return -EINVAL;
 
 	return 0;