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linux-sg2042/net/sched
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Cong Wang d4d6ec6dac sch_hhf: ensure quantum and hhf_non_hh_weight are non-zero 
In case of TCA_HHF_NON_HH_WEIGHT or TCA_HHF_QUANTUM is zero,
it would make no progress inside the loop in hhf_dequeue() thus
kernel would get stuck.

Fix this by checking this corner case in hhf_change().

Fixes: 10239edf86 ("net-qdisc-hhf: Heavy-Hitter Filter (HHF) qdisc")
Reported-by: syzbot+bc6297c11f19ee807dc2@syzkaller.appspotmail.com
Reported-by: syzbot+041483004a7f45f1f20a@syzkaller.appspotmail.com
Reported-by: syzbot+55be5f513bed37fc4367@syzkaller.appspotmail.com
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Cc: Terry Lam <vtlam@google.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2019-09-10 18:31:00 +01:00
..
Kconfig net/sched: Make NET_ACT_CT depends on NF_NAT 2019-07-17 12:02:43 -07:00
Makefile net/sched: Introduce action ct 2019-07-09 12:11:59 -07:00
act_api.c idr: fix overflow case for idr_for_each_entry_ul() 2019-07-01 19:15:46 -07:00
act_bpf.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_connmark.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_csum.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_ct.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_ctinfo.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_gact.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_ife.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_ipt.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_meta_mark.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
act_meta_skbprio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
act_meta_skbtcindex.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
act_mirred.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_mpls.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_nat.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_pedit.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_police.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_sample.c net: sched: act_sample: fix psample group handling on overwrite 2019-08-28 15:53:51 -07:00
act_simple.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_skbedit.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_skbmod.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_tunnel_key.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
act_vlan.c net_sched: fix a NULL pointer deref in ipt action 2019-08-27 15:05:58 -07:00
cls_api.c net: sched: verify that q!=NULL before setting q->flags 2019-07-21 11:49:53 -07:00
cls_basic.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cls_bpf.c net: flow_offload: rename tc_setup_cb_t to flow_setup_cb_t 2019-07-19 21:27:45 -07:00
cls_cgroup.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cls_flow.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cls_flower.c net: flow_offload: rename tc_setup_cb_t to flow_setup_cb_t 2019-07-19 21:27:45 -07:00
cls_fw.c net: sched: remove NET_CLS_IND config option 2019-06-15 14:06:13 -07:00
cls_matchall.c net: flow_offload: rename tc_setup_cb_t to flow_setup_cb_t 2019-07-19 21:27:45 -07:00
cls_route.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cls_rsvp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cls_rsvp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cls_rsvp6.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
cls_tcindex.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
cls_u32.c net: flow_offload: rename tc_setup_cb_t to flow_setup_cb_t 2019-07-19 21:27:45 -07:00
em_canid.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 11 2019-05-21 11:28:45 +02:00
em_cmp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
em_ipset.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
em_ipt.c net: sched: em_ipt: add support for addrtype matching 2019-06-29 11:15:12 -07:00
em_meta.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
em_nbyte.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
em_text.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
em_u32.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ematch.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_api.c net_sched: check cops->tcf_block in tc_bind_tclass() 2019-09-10 18:28:56 +01:00
sch_atm.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
sch_blackhole.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_cake.c netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
sch_cbq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_cbs.c net/sched: cbs: Set default link speed to 10 Mbps in cbs_set_port_rate 2019-08-31 18:45:35 -07:00
sch_choke.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sch_codel.c net: sched: Fix a possible null-pointer dereference in dequeue_func() 2019-07-29 09:46:58 -07:00
sch_drr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sch_dsmark.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
sch_etf.c etf: Add skip_sock_check 2019-06-28 14:45:33 -07:00
sch_fifo.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_fq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_fq_codel.c net_sched: unset TCQ_F_CAN_BYPASS when adding filters 2019-07-17 13:34:09 -07:00
sch_generic.c net: sched: fix reordering issues 2019-09-06 15:12:33 +02:00
sch_gred.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_hfsc.c netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
sch_hhf.c sch_hhf: ensure quantum and hhf_non_hh_weight are non-zero 2019-09-10 18:31:00 +01:00
sch_htb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_ingress.c net: flow_offload: rename TCF_BLOCK_BINDER_TYPE_* to FLOW_BLOCK_BINDER_TYPE_* 2019-07-09 14:38:50 -07:00
sch_mq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sch_mqprio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sch_multiq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
sch_netem.c net: netem: fix use after free and double free with packet corruption 2019-06-18 21:30:38 -04:00
sch_pie.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 235 2019-06-19 17:09:07 +02:00
sch_plug.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_prio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_qfq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sch_red.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_sfb.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
sch_sfq.c net_sched: unset TCQ_F_CAN_BYPASS when adding filters 2019-07-17 13:34:09 -07:00
sch_skbprio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_taprio.c taprio: Set default link speed to 10 Mbps in taprio_set_picos_per_byte 2019-08-31 18:45:34 -07:00
sch_tbf.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sch_teql.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00