netdev - [PATCH -next] xen-netback: fix fragments error handling in checksum_setup

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 16 Dec 2013 10:45:05 +0800
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	ian.campbell@...rix.com, wei.liu2@...rix.com,
	paul.durrant@...rix.com, zoltan.kiss@...rix.com,
	davem@...emloft.net
Cc:	yongjun_wei@...ndmicro.com.cn, xen-devel@...ts.xenproject.org,
	netdev@...r.kernel.org
Subject: [PATCH -next] xen-netback: fix fragments error handling in checksum_setup_ip()

From: Wei Yongjun <yongjun_wei@...ndmicro.com.cn>

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@...ndmicro.com.cn>
---
 drivers/net/xen-netback/netback.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 800496b..773b731 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1099,6 +1099,9 @@ 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,

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html