From f9150c5fa0ac81a848dbb6978a73c10170648d5b Mon Sep 17 00:00:00 2001
From: Swen Schillig <swen@vnet.ibm.com>
Date: Mon, 8 Jan 2018 14:10:40 +0100
Subject: [PATCH] ctdb-common: Return if packet size is zero

Prevent further processing of sock_queue_process
if the received packet size is zero.

Signed-off-by: Swen Schillig <swen@vnet.ibm.com>
Reviewed-by: Amitay Isaacs <amitay@gmail.com>
Reviewed-by: Martin Schwenke <martin@meltin.net>
---
 ctdb/common/sock_io.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ctdb/common/sock_io.c b/ctdb/common/sock_io.c
index 3f7138f0b7f5..8a0b9859d01d 100644
--- a/ctdb/common/sock_io.c
+++ b/ctdb/common/sock_io.c
@@ -231,6 +231,7 @@ static void sock_queue_process(struct sock_queue *queue)
 	if (pkt_size == 0) {
 		D_ERR("Invalid packet of length 0\n");
 		queue->callback(NULL, 0, queue->private_data);
+		return;
 	}
 
 	if ((queue->end - queue->begin) < pkt_size) {
-- 
2.34.1