diff options
| -rw-r--r-- | net/sched/act_api.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/sched/act_api.c b/net/sched/act_api.c index 66dc19746c63..148a89ab789b 100644 --- a/net/sched/act_api.c +++ b/net/sched/act_api.c @@ -149,10 +149,15 @@ EXPORT_SYMBOL(__tcf_idr_release); static size_t tcf_action_shared_attrs_size(const struct tc_action *act) { + struct tc_cookie *act_cookie; u32 cookie_len = 0; - if (act->act_cookie) - cookie_len = nla_total_size(act->act_cookie->len); + rcu_read_lock(); + act_cookie = rcu_dereference(act->act_cookie); + + if (act_cookie) + cookie_len = nla_total_size(act_cookie->len); + rcu_read_unlock(); return nla_total_size(0) /* action number nested */ + nla_total_size(IFNAMSIZ) /* TCA_ACT_KIND */ |