netfilter: ipset: Correct rcu_dereference() call in ip_set_put_comment()

[ Upstream commit 17b8b74c0f8dbf9b9e3301f9ca5b65dd1c079951 ]

The function is called when rcu_read_lock() is held and not
when rcu_read_lock_bh() is held.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/include/linux/netfilter/ipset/ip_set_comment.h b/include/linux/netfilter/ipset/ip_set_comment.h
index 8d02485..9f34204 100644 (file)
--- a/include/linux/netfilter/ipset/ip_set_comment.h
+++ b/include/linux/netfilter/ipset/ip_set_comment.h
@@ -41,11 +41,11 @@ ip_set_init_comment(struct ip_set_comment *comment,
        rcu_assign_pointer(comment->c, c);
 }
 
-/* Used only when dumping a set, protected by rcu_read_lock_bh() */
+/* Used only when dumping a set, protected by rcu_read_lock() */
 static inline int
 ip_set_put_comment(struct sk_buff *skb, struct ip_set_comment *comment)
 {
-       struct ip_set_comment_rcu *c = rcu_dereference_bh(comment->c);
+       struct ip_set_comment_rcu *c = rcu_dereference(comment->c);
 
        if (!c)
                return 0;