WANG Cong ab102b80ce net_sched: reorder pernet ops and act ops registrations ... Krister reported a kernel NULL pointer dereference after tcf_action_init_1() invokes a_o->init(), it is a race condition where one thread calling tcf_register_action() to initialize the netns data after putting act ops in the global list and the other thread searching the list and then calling a_o->init(net, ...). Fix this by moving the pernet ops registration before making the action ops visible. This is fine because: a) we don't rely on act_base in pernet ops->init(), b) in the worst case we have a fully initialized netns but ops is still not ready so new actions still can't be created. Reported-by: Krister Johansen <kjlx@templeofstupid.com> Tested-by: Krister Johansen <kjlx@templeofstupid.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-10-13 10:26:43 -04:00
..
act_api.c	net_sched: reorder pernet ops and act ops registrations	2016-10-13 10:26:43 -04:00
act_bpf.c	bpf: use skb_at_tc_ingress helper in tcf_bpf	2016-09-15 19:29:47 -04:00
act_connmark.c	net_sched: move tc_action into tcf_common	2016-07-25 21:49:19 -07:00
act_csum.c	net sched: stylistic cleanups	2016-09-19 22:04:14 -04:00
act_gact.c	net sched: stylistic cleanups	2016-09-19 22:04:14 -04:00
act_ife.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-10-02 22:20:41 -04:00
act_ipt.c	net_sched: move tc_action into tcf_common	2016-07-25 21:49:19 -07:00
act_meta_mark.c	Support to encoding decoding skb mark on IFE action	2016-03-01 17:15:23 -05:00
act_meta_skbprio.c	Support to encoding decoding skb prio on IFE action	2016-03-01 17:15:23 -05:00
act_meta_skbtcindex.c	net sched ife action: Introduce skb tcindex metadata encap decap	2016-09-19 21:55:28 -04:00
act_mirred.c	net: act_mirred: allow statistic updates from offloaded actions	2016-09-21 19:50:03 -04:00
act_nat.c	net_sched: move tc_action into tcf_common	2016-07-25 21:49:19 -07:00
act_pedit.c	net_sched: move tc_action into tcf_common	2016-07-25 21:49:19 -07:00
act_police.c	net sched: stylistic cleanups	2016-09-19 22:04:14 -04:00
act_simple.c	net_sched: move tc_action into tcf_common	2016-07-25 21:49:19 -07:00
act_skbedit.c	net_sched: move tc_action into tcf_common	2016-07-25 21:49:19 -07:00
act_skbmod.c	net_sched: Introduce skbmod action	2016-09-15 19:33:47 -04:00
act_tunnel_key.c	net/sched: act_tunnel_key: Remove rcu_read_lock protection	2016-09-15 19:18:18 -04:00
act_vlan.c	net/sched: act_vlan: Push skb->data to mac_header prior calling skb_vlan_*() functions	2016-10-03 21:40:50 -04:00
cls_api.c	net_sched: do not broadcast RTM_GETTFILTER result	2016-10-13 09:51:55 -04:00
cls_basic.c	net_sched: properly handle failure case of tcf_exts_init()	2016-08-22 17:02:31 -07:00
cls_bpf.c	net: cls_bpf: allow offloaded filters to update stats	2016-09-21 19:50:03 -04:00
cls_cgroup.c	net_sched: properly handle failure case of tcf_exts_init()	2016-08-22 17:02:31 -07:00
cls_flow.c	net sched: stylistic cleanups	2016-09-19 22:04:14 -04:00
cls_flower.c	net/sched: cls_flower: Use a proper mask value for enc key id parameter	2016-09-28 03:11:22 -04:00
cls_fw.c	net sched: stylistic cleanups	2016-09-19 22:04:14 -04:00
cls_matchall.c	net/sched: Add match-all classifier hw offloading.	2016-07-24 23:11:59 -07:00
cls_route.c	net_sched: check NULL on error path in route4_change()	2016-09-23 06:51:49 -04:00
cls_rsvp.c
cls_rsvp.h	net_sched: properly handle failure case of tcf_exts_init()	2016-08-22 17:02:31 -07:00
cls_rsvp6.c
cls_tcindex.c	net sched: stylistic cleanups	2016-09-19 22:04:14 -04:00
cls_u32.c	net sched: stylistic cleanups	2016-09-19 22:04:14 -04:00
em_canid.c	net: sched: remove tcf_proto from ematch calls	2014-10-06 18:02:32 -04:00
em_cmp.c	net_sched: cleanups	2011-01-19 23:31:12 -08:00
em_ipset.c	netfilter: x_tables: Pass struct net in xt_action_param	2015-09-18 21:58:14 +02:00
em_meta.c	qdisc: constify meta_type_ops structures	2016-04-14 00:35:30 -04:00
em_nbyte.c	net: sched: remove tcf_proto from ematch calls	2014-10-06 18:02:32 -04:00
em_text.c	net: Remove state argument from skb_find_text()	2015-02-22 15:59:54 -05:00
em_u32.c	net_sched: cleanups	2011-01-19 23:31:12 -08:00
ematch.c	ematch: Fix auto-loading of ematch modules.	2015-02-20 15:30:56 -05:00
Kconfig	net sched ife action: Introduce skb tcindex metadata encap decap	2016-09-19 21:55:28 -04:00
Makefile	net sched ife action: Introduce skb tcindex metadata encap decap	2016-09-19 21:55:28 -04:00
sch_api.c	net sched: stylistic cleanups	2016-09-19 22:04:14 -04:00
sch_atm.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_blackhole.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_cbq.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_choke.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_codel.c	sched: replace __skb_dequeue with __qdisc_dequeue_head	2016-09-19 01:47:18 -04:00
sch_drr.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_dsmark.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_fifo.c	sched: don't use skb queue helpers	2016-09-19 01:47:18 -04:00
sch_fq.c	net_sched: sch_fq: account for schedule/timers drifts	2016-09-23 07:19:06 -04:00
sch_fq_codel.c	net_sched: fq_codel: cache skb->truesize into skb->cb	2016-06-25 12:19:35 -04:00
sch_generic.c	sched: add and use qdisc_skb_head helpers	2016-09-19 01:47:18 -04:00
sch_gred.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_hfsc.c	net/sched/sch_hfsc.c: remove unused cl_myfadj	2016-08-08 16:06:47 -07:00
sch_hhf.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_htb.c	sched: add and use qdisc_skb_head helpers	2016-09-19 01:47:18 -04:00
sch_ingress.c	net: sched: fix tc_should_offload for specific clsact classes	2016-06-07 16:59:53 -07:00
sch_mq.c	net: sched: convert qdisc linked list to hashtable	2016-08-10 17:19:02 -07:00
sch_mqprio.c	net: sched: convert qdisc linked list to hashtable	2016-08-10 17:19:02 -07:00
sch_multiq.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_netem.c	sched: add and use qdisc_skb_head helpers	2016-09-19 01:47:18 -04:00
sch_pie.c	sched: replace __skb_dequeue with __qdisc_dequeue_head	2016-09-19 01:47:18 -04:00
sch_plug.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_prio.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-06-30 05:03:36 -04:00
sch_qfq.c	sch_qfq: keep backlog updated with qlen	2016-09-23 06:52:31 -04:00
sch_red.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_sfb.c	sch_sfb: keep backlog updated with qlen	2016-09-23 06:52:31 -04:00
sch_sfq.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_tbf.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00
sch_teql.c	net_sched: drop packets after root qdisc lock is released	2016-06-25 12:19:35 -04:00