diff options
| author |   Eric Dumazet <edumazet@google.com> | 2021-12-13 08:39:59 -0800 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2021-12-16 12:49:34 +0100 |
| commit | a9382d9389a045ddc1e6f8e0595eb793f6933d68 (patch) | |
| tree | 0317e5d106e6a57815ad7a91b7e4ce8a0cefcf7a /net/netfilter | |
| parent | net: prestera: flower template support (diff) | |
| download | linux-dev-a9382d9389a045ddc1e6f8e0595eb793f6933d68.tar.xz linux-dev-a9382d9389a045ddc1e6f8e0595eb793f6933d68.zip | |
netfilter: nfnetlink: add netns refcount tracker to struct nfulnl_instance
If compiled with CONFIG_NET_NS_REFCNT_TRACKER=y,
using put_net_track() in nfulnl_instance_free_rcu()
and get_net_track() in instance_create()
might help us finding netns refcount imbalances.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nfnetlink_log.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c index 691ef4cffdd9..7a3a91fc7ffa 100644 --- a/net/netfilter/nfnetlink_log.c +++ b/net/netfilter/nfnetlink_log.c @@ -66,6 +66,7 @@ struct nfulnl_instance { struct sk_buff *skb; /* pre-allocatd skb */ struct timer_list timer; struct net *net; + netns_tracker ns_tracker; struct user_namespace *peer_user_ns; /* User namespace of the peer process */ u32 peer_portid; /* PORTID of the peer process */ @@ -140,7 +141,7 @@ static void nfulnl_instance_free_rcu(struct rcu_head *head) struct nfulnl_instance *inst = container_of(head, struct nfulnl_instance, rcu); - put_net(inst->net); + put_net_track(inst->net, &inst->ns_tracker); kfree(inst); module_put(THIS_MODULE); } @@ -187,7 +188,7 @@ instance_create(struct net *net, u_int16_t group_num, timer_setup(&inst->timer, nfulnl_timer, 0); - inst->net = get_net(net); + inst->net = get_net_track(net, &inst->ns_tracker, GFP_ATOMIC); inst->peer_user_ns = user_ns; inst->peer_portid = portid; inst->group_num = group_num; |