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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Eli Cooper <elicooper@gmx.com>,
	"David S. Miller" <davem@davemloft.net>
Subject: [PATCH 4.4 25/28] ipv6: Set skb->protocol properly for local output
Date: Fri,  9 Dec 2016 17:18:07 +0100	[thread overview]
Message-ID: <20161209161749.007896611@linuxfoundation.org> (raw)
In-Reply-To: <20161209161747.923205441@linuxfoundation.org>

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eli Cooper <elicooper@gmx.com>

commit b4e479a96fc398ccf83bb1cffb4ffef8631beaf1 upstream.

When xfrm is applied to TSO/GSO packets, it follows this path:

    xfrm_output() -> xfrm_output_gso() -> skb_gso_segment()

where skb_gso_segment() relies on skb->protocol to function properly.

This patch sets skb->protocol to ETH_P_IPV6 before dst_output() is called,
fixing a bug where GSO packets sent through an ipip6 tunnel are dropped
when xfrm is involved.

Signed-off-by: Eli Cooper <elicooper@gmx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/ipv6/output_core.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/ipv6/output_core.c
+++ b/net/ipv6/output_core.c
@@ -148,6 +148,8 @@ int __ip6_local_out(struct net *net, str
 	ipv6_hdr(skb)->payload_len = htons(len);
 	IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
 
+	skb->protocol = htons(ETH_P_IPV6);
+
 	return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT,
 		       net, sk, skb, NULL, skb_dst(skb)->dev,
 		       dst_output);



  parent reply	other threads:[~2016-12-09 16:18 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CGME20161209161807epcas5p2a4f0544b5e462fc831c24de653b6785e@epcas5p2.samsung.com>
2016-12-09 16:17 ` [PATCH 4.4 00/28] 4.4.38-stable review Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 01/28] virtio-net: add a missing synchronize_net() Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 02/28] net: check dead netns for peernet2id_alloc() Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 03/28] ip6_tunnel: disable caching when the traffic class is inherited Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 04/28] net: sky2: Fix shutdown crash Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 05/28] af_unix: conditionally use freezable blocking calls in read Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 06/28] rtnetlink: fix FDB size computation Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 07/28] l2tp: fix racy SOCK_ZAPPED flag check in l2tp_ip{,6}_bind() Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 08/28] net: dsa: bcm_sf2: Ensure we re-negotiate EEE during after link change Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 09/28] net, sched: respect rcu grace period on cls destruction Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 10/28] net/sched: pedit: make sure that offset is valid Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 11/28] netlink: Call cb->done from a worker thread Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 12/28] netlink: Do not schedule work from sk_destruct Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 13/28] net/dccp: fix use-after-free in dccp_invalid_packet Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 14/28] packet: fix race condition in packet_set_ring Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 15/28] net: bcmgenet: Utilize correct struct device for all DMA operations Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 16/28] sh_eth: remove unchecked interrupts for RZ/A1 Greg Kroah-Hartman
2016-12-09 16:17   ` [PATCH 4.4 17/28] geneve: avoid use-after-free of skb->data Greg Kroah-Hartman
2016-12-09 16:18   ` [PATCH 4.4 18/28] net: avoid signed overflows for SO_{SND|RCV}BUFFORCE Greg Kroah-Hartman
2016-12-09 16:18   ` [PATCH 4.4 19/28] net: ping: check minimum size on ICMP header length Greg Kroah-Hartman
2016-12-09 16:18   ` [PATCH 4.4 20/28] sparc32: Fix inverted invalid_frame_pointer checks on sigreturns Greg Kroah-Hartman
2016-12-09 16:18   ` [PATCH 4.4 21/28] sparc64: Fix find_node warning if numa node cannot be found Greg Kroah-Hartman
2016-12-09 16:18   ` [PATCH 4.4 22/28] sparc64: fix compile warning section mismatch in find_node() Greg Kroah-Hartman
2016-12-09 16:18   ` [PATCH 4.4 23/28] Dont feed anything but regular iovecs to blk_rq_map_user_iov Greg Kroah-Hartman
2016-12-09 16:18   ` [PATCH 4.4 24/28] constify iov_iter_count() and iter_is_iovec() Greg Kroah-Hartman
2016-12-09 16:18   ` Greg Kroah-Hartman [this message]
2016-12-09 16:18   ` [PATCH 4.4 26/28] ipv4: Set skb->protocol properly for local output Greg Kroah-Hartman
2016-12-09 16:18   ` [PATCH 4.4 27/28] esp4: Fix integrity verification when ESN are used Greg Kroah-Hartman
2016-12-09 16:18   ` [PATCH 4.4 28/28] esp6: " Greg Kroah-Hartman
2016-12-09 18:22   ` [PATCH 4.4 00/28] 4.4.38-stable review Shuah Khan
2016-12-09 22:35   ` Guenter Roeck

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