This is a note to let you know that I've just added the patch titled
netfilter/ipvs: clear ipvs_property flag when SKB net namespace changed
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
netfilter-ipvs-clear-ipvs_property-flag-when-skb-net-namespace-changed.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Tue Nov 21 15:28:16 CET 2017
From: Ye Yin <hustcat@xxxxxxxxx>
Date: Thu, 26 Oct 2017 16:57:05 +0800
Subject: netfilter/ipvs: clear ipvs_property flag when SKB net namespace changed
From: Ye Yin <hustcat@xxxxxxxxx>
[ Upstream commit 2b5ec1a5f9738ee7bf8f5ec0526e75e00362c48f ]
When run ipvs in two different network namespace at the same host, and one
ipvs transport network traffic to the other network namespace ipvs.
'ipvs_property' flag will make the second ipvs take no effect. So we should
clear 'ipvs_property' when SKB network namespace changed.
Fixes: 621e84d6f373 ("dev: introduce skb_scrub_packet()")
Signed-off-by: Ye Yin <hustcat@xxxxxxxxx>
Signed-off-by: Wei Zhou <chouryzhou@xxxxxxxxx>
Signed-off-by: Julian Anastasov <ja@xxxxxx>
Signed-off-by: Simon Horman <horms@xxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
include/linux/skbuff.h | 7 +++++++
net/core/skbuff.c | 1 +
2 files changed, 8 insertions(+)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3400,6 +3400,13 @@ static inline void nf_reset_trace(struct
#endif
}
+static inline void ipvs_reset(struct sk_buff *skb)
+{
+#if IS_ENABLED(CONFIG_IP_VS)
+ skb->ipvs_property = 0;
+#endif
+}
+
/* Note: This doesn't put any conntrack and bridge info in dst. */
static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src,
bool copy)
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -4229,6 +4229,7 @@ void skb_scrub_packet(struct sk_buff *sk
if (!xnet)
return;
+ ipvs_reset(skb);
skb_orphan(skb);
skb->mark = 0;
}
Patches currently in stable-queue which might be from hustcat@xxxxxxxxx are
queue-4.4/netfilter-ipvs-clear-ipvs_property-flag-when-skb-net-namespace-changed.patch