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Date: Fri, 8 Aug 2014 13:40:44 -0700 From: Kamal Mostafa <kamal@...onical.com> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org, kernel-team@...ts.ubuntu.com Cc: Dmitry Popov <ixaphire@...tor.net>, "David S. Miller" <davem@...emloft.net>, Kamal Mostafa <kamal@...onical.com> Subject: [PATCH 3.13 221/259] ipip, sit: fix ipv4_{update_pmtu,redirect} calls 3.13.11.6 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Dmitry Popov <ixaphire@...tor.net> [ Upstream commit 2346829e641b804ece9ac9298136b56d9567c278 ] ipv4_{update_pmtu,redirect} were called with tunnel's ifindex (t->dev is a tunnel netdevice). It caused wrong route lookup and failure of pmtu update or redirect. We should use the same ifindex that we use in ip_route_output_* in *tunnel_xmit code. It is t->parms.link . Signed-off-by: Dmitry Popov <ixaphire@...tor.net> Signed-off-by: David S. Miller <davem@...emloft.net> Signed-off-by: Kamal Mostafa <kamal@...onical.com> --- net/ipv4/ipip.c | 4 ++-- net/ipv6/sit.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c index af34bdb..1e625b0 100644 --- a/net/ipv4/ipip.c +++ b/net/ipv4/ipip.c @@ -149,13 +149,13 @@ static int ipip_err(struct sk_buff *skb, u32 info) if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) { ipv4_update_pmtu(skb, dev_net(skb->dev), info, - t->dev->ifindex, 0, IPPROTO_IPIP, 0); + t->parms.link, 0, IPPROTO_IPIP, 0); err = 0; goto out; } if (type == ICMP_REDIRECT) { - ipv4_redirect(skb, dev_net(skb->dev), t->dev->ifindex, 0, + ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0, IPPROTO_IPIP, 0); err = 0; goto out; diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c index cd4777e..8f59675 100644 --- a/net/ipv6/sit.c +++ b/net/ipv6/sit.c @@ -559,12 +559,12 @@ static int ipip6_err(struct sk_buff *skb, u32 info) if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) { ipv4_update_pmtu(skb, dev_net(skb->dev), info, - t->dev->ifindex, 0, IPPROTO_IPV6, 0); + t->parms.link, 0, IPPROTO_IPV6, 0); err = 0; goto out; } if (type == ICMP_REDIRECT) { - ipv4_redirect(skb, dev_net(skb->dev), t->dev->ifindex, 0, + ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0, IPPROTO_IPV6, 0); err = 0; goto out; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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