forked from luck/tmp_suning_uos_patched
net: Reset secmark when scrubbing packet
skb_scrub_packet() is called when a packet switches between a context such as between underlay and overlay, between namespaces, or between L3 subnets. While we already scrub the packet mark, connection tracking entry, and cached destination, the security mark/context is left intact. It seems wrong to inherit the security context of a packet when going from overlay to underlay or across forwarding paths. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Flavio Leitner <fbl@sysclose.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -4148,6 +4148,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
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skb->ignore_df = 0;
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skb_dst_drop(skb);
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skb->mark = 0;
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skb_init_secmark(skb);
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secpath_reset(skb);
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nf_reset(skb);
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nf_reset_trace(skb);
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