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Du ChengandGreg Kroah-Hartman d4b0dc31df net: sched: tapr: prevent cycle_time == 0 in parse_taprio_schedule 
[ Upstream commit ed8157f1eb ]

There is a reproducible sequence from the userland that will trigger a WARN_ON()
condition in taprio_get_start_time, which causes kernel to panic if configured
as "panic_on_warn". Catch this condition in parse_taprio_schedule to
prevent this condition.

Reported as bug on syzkaller:
https://syzkaller.appspot.com/bug?extid=d50710fd0873a9c6b40c

Reported-by: syzbot+d50710fd0873a9c6b40c@syzkaller.appspotmail.com
Signed-off-by: Du Cheng <ducheng2@gmail.com>
Acked-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-19 10:12:57 +02:00
..
act_api.c
Revert "net: sched: bump refcount for new action in ACT replace mode"
2021-04-14 08:42:14 +02:00
act_bpf.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_connmark.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_csum.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_ct.c
net/sched: act_ct: Fix adding udp port mangle operation
2020-10-20 16:15:51 -07:00
act_ctinfo.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-10-05 18:40:01 -07:00
act_gact.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_gate.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-10-05 18:40:01 -07:00
act_ife.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_ipt.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_meta_mark.c
…
act_meta_skbprio.c
…
act_meta_skbtcindex.c
…
act_mirred.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_mpls.c
net/sched: act_mpls: ensure LSE is pullable before reading it
2020-12-03 11:13:37 -08:00
act_nat.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_pedit.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_police.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_sample.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_simple.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_skbedit.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_skbmod.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-09-24 19:46:21 -07:00
act_tunnel_key.c
net/sched: act_tunnel_key: fix OOB write in case of IPv6 ERSPAN tunnels
2020-10-20 21:10:41 -07:00
act_vlan.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2020-10-05 18:40:01 -07:00
cls_api.c
net: cls_api: Fix uninitialised struct field bo->unlocked_driver_cb
2021-04-14 08:42:10 +02:00
cls_basic.c
…
cls_bpf.c
…
cls_cgroup.c
…
cls_flow.c
Merge tag 'uninit-macro-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2020-08-04 13:49:43 -07:00
cls_flower.c
net/sched: cls_flower: use ntohs for struct flow_dissector_key_ports
2021-05-19 10:12:53 +02:00
cls_fw.c
…
cls_matchall.c
…
cls_route.c
…
cls_rsvp6.c
…
cls_rsvp.c
…
cls_rsvp.h
…
cls_tcindex.c
net_sched: avoid shift-out-of-bounds in tcindex_set_parms()
2021-01-27 11:55:24 +01:00
cls_u32.c
net/sched: cls_u32: Replace one-element array with flexible-array member
2020-09-28 18:48:42 -07:00
em_canid.c
net: sched: kerneldoc fixes
2020-07-13 17:20:40 -07:00
em_cmp.c
…
em_ipset.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-03 14:34:53 -07:00
em_ipt.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-03 14:34:53 -07:00
em_meta.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-03 14:34:53 -07:00
em_nbyte.c
…
em_text.c
…
em_u32.c
…
ematch.c
net: sched: kerneldoc fixes
2020-07-13 17:20:40 -07:00
Kconfig
net: sched: incorrect Kconfig dependencies on Netfilter modules
2021-02-23 15:53:23 +01:00
Makefile
…
sch_api.c
net: sched: avoid duplicates in classes dump
2021-03-17 17:06:14 +01:00
sch_atm.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_blackhole.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_cake.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
sch_cbq.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-08-05 20:13:21 -07:00
sch_cbs.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_choke.c
net: sched: validate stab values
2021-03-30 14:31:57 +02:00
sch_codel.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_drr.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_dsmark.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_etf.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_ets.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_fifo.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_fq_codel.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-08-05 20:13:21 -07:00
sch_fq_pie.c
net/sched: fq_pie: initialize timer earlier in fq_pie_init()
2020-12-04 14:15:01 -08:00
sch_fq.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_generic.c
net/sched: get rid of qdisc->padded
2020-10-09 08:08:08 -07:00
sch_gred.c
net: sched: validate stab values
2021-03-30 14:31:57 +02:00
sch_hfsc.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-08-05 20:13:21 -07:00
sch_hhf.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_htb.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
2020-08-05 20:13:21 -07:00
sch_ingress.c
…
sch_mq.c
…
sch_mqprio.c
…
sch_multiq.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_netem.c
netem: fix zero division in tabledist
2020-10-29 11:45:47 -07:00
sch_pie.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_plug.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_prio.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_qfq.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_red.c
net: sched: validate stab values
2021-03-30 14:31:57 +02:00
sch_sfb.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_sfq.c
net: sched: validate stab values
2021-03-30 14:31:57 +02:00
sch_skbprio.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_taprio.c
net: sched: tapr: prevent cycle_time == 0 in parse_taprio_schedule
2021-05-19 10:12:57 +02:00
sch_tbf.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_teql.c
net: sched: sch_teql: fix null-pointer dereference
2021-04-14 08:42:02 +02:00