diff options
Diffstat (limited to 'net/sched')
| -rw-r--r-- | net/sched/cls_cgroup.c | 2 | ||||
| -rw-r--r-- | net/sched/cls_matchall.c | 3 |
2 files changed, 5 insertions, 0 deletions
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c index 037d128c2851..35659127e5a3 100644 --- a/net/sched/cls_cgroup.c +++ b/net/sched/cls_cgroup.c @@ -32,6 +32,8 @@ static int cls_cgroup_classify(struct sk_buff *skb, const struct tcf_proto *tp, struct cls_cgroup_head *head = rcu_dereference_bh(tp->root); u32 classid = task_get_classid(skb); + if (unlikely(!head)) + return -1; if (!classid) return -1; if (!tcf_em_tree_match(skb, &head->ematches, NULL)) diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c index da916f39b719..1e98a517fb0b 100644 --- a/net/sched/cls_matchall.c +++ b/net/sched/cls_matchall.c @@ -32,6 +32,9 @@ static int mall_classify(struct sk_buff *skb, const struct tcf_proto *tp, { struct cls_mall_head *head = rcu_dereference_bh(tp->root); + if (unlikely(!head)) + return -1; + if (tc_skip_sw(head->flags)) return -1; |