From 616cf5c06934364ab1002b420ebe975850b4b208 Mon Sep 17 00:00:00 2001 From: Julian Anastasov Date: Sat, 19 Sep 2026 21:07:32 +0300 Subject: [PATCH] ipvs: do not create invisible templates The IP_VS_CONN_F_ONE_PACKET flag was implemented for normal connections. When conn template inherits this flag from dest->conn_flags it will not be hashed. As result, we will create new template for every new normal connection. Fix it to allow one template to be used by many normal connections. Fixes: 26ec037f9841 ("IPVS: one-packet scheduling") Link: https://netdev-ai.bots.linux.dev/sashiko/#/patchset/20260916231652.127456-1-pablo%40netfilter.org Signed-off-by: Julian Anastasov Signed-off-by: Pablo Neira Ayuso --- net/netfilter/ipvs/ip_vs_conn.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c index 6fa3e1dc534c..cb009208826f 100644 --- a/net/netfilter/ipvs/ip_vs_conn.c +++ b/net/netfilter/ipvs/ip_vs_conn.c @@ -1102,6 +1102,9 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest) if (cp->protocol != IPPROTO_UDP) conn_flags &= ~IP_VS_CONN_F_ONE_PACKET; flags = cp->flags; + /* Only visible templates can control multiple connections */ + if (flags & IP_VS_CONN_F_TEMPLATE) + conn_flags &= ~IP_VS_CONN_F_ONE_PACKET; /* Bind with the destination and its corresponding transmitter */ if (flags & IP_VS_CONN_F_SYNC) { /* Synced conns are hashed, so they can not get this flag */