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linux/net/sched
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WANG Cong 92f9170621 net_sched: check noop_qdisc before qdisc_hash_add() 
Dmitry reported a crash when injecting faults in
attach_one_default_qdisc() and dev->qdisc is still
a noop_disc, the check before qdisc_hash_add() fails
to catch it because it tests NULL. We should test
against noop_qdisc since it is the default qdisc
at this point.

Fixes: 59cc1f61f0 ("net: sched: convert qdisc linked list to hashtable")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2017-04-06 12:28:39 -07:00
..
Kconfig net/sched: act_ife: Change to use ife module 2017-02-03 15:16:46 -05:00
Makefile net/sched: Introduce sample tc action 2017-01-24 13:44:28 -05:00
act_api.c net sched actions: do not overwrite status of action creation. 2017-02-26 21:31:32 -05:00
act_bpf.c bpf: rework prog_digest into prog_tag 2017-01-16 14:03:31 -05:00
act_connmark.c act_connmark: avoid crashing on malformed nlattrs with null parms 2017-03-12 23:32:41 -07:00
act_csum.c net/sched: act_csum: compute crc32c on SCTP packets 2017-01-09 14:36:57 -05:00
act_gact.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
act_ife.c net/sched: act_ife: Change to use ife module 2017-02-03 15:16:46 -05:00
act_ipt.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
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/sched: act_mirred: remove duplicated include from act_mirred.c 2017-02-07 11:42:34 -05:00
act_nat.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
act_pedit.c net/act_pedit: Introduce 'add' operation 2017-02-10 13:18:33 -05:00
act_police.c net_sched: gen_estimator: complete rewrite of rate estimators 2016-12-05 15:21:59 -05:00
act_sample.c net/sched: act_psample: Remove unnecessary ASSERT_RTNL 2017-02-01 14:10:03 -05:00
act_simple.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
act_skbedit.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
act_skbmod.c net/sched: act_skbmod: remove unneeded rcu_read_unlock in tcf_skbmod_dump 2017-03-07 14:13:03 -08:00
act_tunnel_key.c net/sched: act_tunnel_key: Fix setting UDP dst port in metadata under IPv6 2016-12-23 11:59:56 -05:00
act_vlan.c netns: make struct pernet_operations::id unsigned int 2016-11-18 10:59:15 -05:00
cls_api.c sched: Fix accidental removal of errout goto 2017-02-14 11:44:14 -05:00
cls_basic.c net, sched: respect rcu grace period on cls destruction 2016-11-28 10:47:35 -05:00
cls_bpf.c net/sched: cls_bpf: Reflect HW offload status 2017-02-17 12:08:06 -05:00
cls_cgroup.c net, sched: respect rcu grace period on cls destruction 2016-11-28 10:47:35 -05:00
cls_flow.c skbuff: add and use skb_nfct helper 2017-02-02 14:31:53 +01:00
cls_flower.c net/sched: cls_flower: Reflect HW offload status 2017-02-17 12:08:05 -05:00
cls_fw.c net sched: stylistic cleanups 2016-09-19 22:04:14 -04:00
cls_matchall.c net/sched: cls_matchall: Reflect HW offloading status 2017-02-17 12:08:06 -05:00
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: respect rcu grace period on cls destruction 2016-11-28 10:47:35 -05:00
cls_rsvp6.c
…
cls_tcindex.c net, sched: respect rcu grace period on cls destruction 2016-11-28 10:47:35 -05:00
cls_u32.c net/sched: cls_u32: Reflect HW offload status 2017-02-17 12:08:06 -05:00
em_canid.c net: sched: remove tcf_proto from ematch calls 2014-10-06 18:02:32 -04:00
em_cmp.c
…
em_ipset.c netfilter: x_tables: move hook state into xt_action_param structure 2016-11-03 10:56:21 +01:00
em_meta.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/loadavg.h> 2017-03-02 08:42:27 +01:00
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
…
ematch.c ematch: Fix auto-loading of ematch modules. 2015-02-20 15:30:56 -05:00
sch_api.c pkt_sched: Remove useless qdisc_stab_lock 2017-02-17 15:10:18 -05:00
sch_atm.c sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api 2017-02-10 11:38:08 -05:00
sch_blackhole.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_cbq.c sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api 2017-02-10 11:38:08 -05:00
sch_choke.c sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api 2017-02-10 11:38:08 -05:00
sch_codel.c sched: replace __skb_dequeue with __qdisc_dequeue_head 2016-09-19 01:47:18 -04:00
sch_drr.c net_sched: gen_estimator: complete rewrite of rate estimators 2016-12-05 15:21:59 -05:00
sch_dsmark.c sch_dsmark: fix invalid skb_cow() usage 2017-03-21 17:21:27 -07:00
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: use rb_entry() 2016-12-20 14:22:48 -05:00
sch_fq_codel.c sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api 2017-02-10 11:38:08 -05:00
sch_generic.c net_sched: check noop_qdisc before qdisc_hash_add() 2017-04-06 12:28:39 -07:00
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: gen_estimator: complete rewrite of rate estimators 2016-12-05 15:21:59 -05:00
sch_hhf.c net_sched: fix error recovery at qdisc creation 2017-02-11 21:38:58 -05:00
sch_htb.c sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api 2017-02-10 11:38:08 -05:00
sch_ingress.c sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api 2017-02-10 11:38:08 -05:00
sch_mq.c net_sched: fix error recovery at qdisc creation 2017-02-11 21:38:58 -05:00
sch_mqprio.c net_sched: fix error recovery at qdisc creation 2017-02-11 21:38:58 -05:00
sch_multiq.c sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api 2017-02-10 11:38:08 -05:00
sch_netem.c net-tc: convert tc_from to tc_from_ingress and tc_redirected 2017-01-08 20:58:52 -05:00
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 sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api 2017-02-10 11:38:08 -05:00
sch_qfq.c net_sched: gen_estimator: complete rewrite of rate estimators 2016-12-05 15:21:59 -05:00
sch_red.c net_sched: drop packets after root qdisc lock is released 2016-06-25 12:19:35 -04:00
sch_sfb.c sched: move tcf_proto_destroy and tcf_destroy_chain helpers into cls_api 2017-02-10 11:38:08 -05:00
sch_sfq.c net_sched: fix error recovery at qdisc creation 2017-02-11 21:38:58 -05:00
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: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00