diff --git a/kernel/signal.c b/kernel/signal.c
index b9e5d825ee46265a7562b1ffb2f4b029f2b3290e..18aa55c1bb4f99cc5c5698b85ad7fb97f604f671 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -643,6 +643,9 @@ int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
 		spin_unlock(&tsk->sighand->siglock);
 		posixtimer_rearm(info);
 		spin_lock(&tsk->sighand->siglock);
+
+		/* Don't expose the si_sys_private value to userspace */
+		info->si_sys_private = 0;
 	}
 #endif
 	return signr;