From: Taehee Yoo Date: Sat, 8 Dec 2018 02:03:01 +0000 (+0900) Subject: netfilter: nf_conncount: use rb_link_node_rcu() instead of rb_link_node() X-Git-Tag: v4.20~27^2~63^2 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d4e7df16567b80836a78d31b42f1a9355a636d67;p=thirdparty%2Fkernel%2Flinux.git netfilter: nf_conncount: use rb_link_node_rcu() instead of rb_link_node() rbnode in insert_tree() is rcu protected pointer. So, in order to handle this pointer, _rcu function should be used. rb_link_node_rcu() is a rcu version of rb_link_node(). Fixes: 34848d5c896e ("netfilter: nf_conncount: Split insert and traversal") Signed-off-by: Taehee Yoo Signed-off-by: Pablo Neira Ayuso --- diff --git a/net/netfilter/nf_conncount.c b/net/netfilter/nf_conncount.c index b6d0f6deea86c..9cd180bda0920 100644 --- a/net/netfilter/nf_conncount.c +++ b/net/netfilter/nf_conncount.c @@ -427,7 +427,7 @@ insert_tree(struct net *net, count = 1; rbconn->list.count = count; - rb_link_node(&rbconn->node, parent, rbnode); + rb_link_node_rcu(&rbconn->node, parent, rbnode); rb_insert_color(&rbconn->node, root); out_unlock: spin_unlock_bh(&nf_conncount_locks[hash % CONNCOUNT_LOCK_SLOTS]);