4.9-stable review patch. If anyone has any objections, please let me know.
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From: Ye Yin hustcat@gmail.com
[ 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@gmail.com Signed-off-by: Wei Zhou chouryzhou@gmail.com Signed-off-by: Julian Anastasov ja@ssi.bg Signed-off-by: Simon Horman horms@verge.net.au Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- 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 @@ -3584,6 +3584,13 @@ 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 @@ -4375,6 +4375,7 @@ void skb_scrub_packet(struct sk_buff *sk if (!xnet) return;
+ ipvs_reset(skb); skb_orphan(skb); skb->mark = 0; }