diff --git a/sys/compat/linux/linux_socket.c b/sys/compat/linux/linux_socket.c
--- a/sys/compat/linux/linux_socket.c
+++ b/sys/compat/linux/linux_socket.c
@@ -2101,6 +2101,8 @@
 	td->td_retval[0] = (ssize_t)bytes_read;
 drop:
 	fdrop(fp, td);
+	if (error == ENOTSOCK)
+		error = EINVAL;
 	return (error);
 }