From 7022ef8b2a673db3d12a348331181f579afe9b22 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 16 Dec 2013 10:45:05 +0800
Subject: xen-netback: fix fragments error handling in checksum_setup_ip()
Fix to return -EPROTO error if fragments detected in checksum_setup_ip().
Fixes: 1431fb31ecba ('xen-netback: fix fragment detection in checksum setup')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/xen-netback/netback.c | 3 +++
1 file changed, 3 insertions(+)
(limited to 'drivers/net/xen-netback/netback.c')
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index e884ee1fe7e..27bbe58dcbe 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1197,6 +1197,9 @@ static int checksum_setup_ip(struct xenvif *vif, struct sk_buff *skb,
err = -EPROTO;
+ if (fragment)
+ goto out;
+
switch (ip_hdr(skb)->protocol) {
case IPPROTO_TCP:
err = maybe_pull_tail(skb,
--
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