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xen-netback: fix fragments error handling in checksum_setup_ip()
authorWei Yongjun <yongjun_wei@trendmicro.com.cn>
Mon, 16 Dec 2013 02:45:05 +0000 (10:45 +0800)
committerDavid S. Miller <davem@davemloft.net>
Tue, 17 Dec 2013 21:18:18 +0000 (16:18 -0500)
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 patch | blob | blame | history

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index e884ee1fe7edf7e3fa41dd9998eb00be8ecc6d08..27bbe58dcbe7bf424fdfd54a461af847836836eb 100644 (file)
--- 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,