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4.9.218-13
linux/net/sched
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Cong Wang c4453d2833 net_sched: keep alloc_hash updated after hash allocation 
[ Upstream commit 0d1c3530e1 ]

In commit 599be01ee5 ("net_sched: fix an OOB access in cls_tcindex")
I moved cp->hash calculation before the first
tcindex_alloc_perfect_hash(), but cp->alloc_hash is left untouched.
This difference could lead to another out of bound access.

cp->alloc_hash should always be the size allocated, we should
update it after this tcindex_alloc_perfect_hash().

Reported-and-tested-by: syzbot+dcc34d54d68ef7d2d53d@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+c72da7b9ed57cde6fca2@syzkaller.appspotmail.com
Fixes: 599be01ee5 ("net_sched: fix an OOB access in cls_tcindex")
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-02 17:20:30 +02:00
..
act_api.c
net: avoid potential infinite loop in tc_ctl_action()
2019-10-29 09:15:12 +01:00
act_bpf.c
net/sched: fix NULL dereference in the error path of tcf_bpf_init()
2018-04-13 19:48:33 +02:00
act_connmark.c
act_connmark: avoid crashing on malformed nlattrs with null parms
2017-03-22 12:43:34 +01:00
act_csum.c
sched: act_csum: don't mangle TCP and UDP GSO packets
2018-03-22 09:17:42 +01:00
act_gact.c
net/sched: Fix update of lastuse in act modules implementing stats_update
2018-01-17 09:38:54 +01:00
act_ife.c
ife: error out when nla attributes are empty
2019-08-11 12:22:18 +02:00
act_ipt.c
net: sched: fix NULL pointer dereference when action calls some targets
2017-08-30 10:21:42 +02:00
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
act_mirred: Fix mirred_init_module error handling
2020-01-29 10:24:33 +01:00
act_nat.c
net_sched: move tc_action into tcf_common
2016-07-25 21:49:19 -07:00
act_pedit.c
net/sched: act_pedit: fix WARN() in the traffic path
2019-11-28 18:28:04 +01:00
act_police.c
net sched: stylistic cleanups
2016-09-19 22:04:14 -04:00
act_simple.c
net/sched: act_simple: fix parsing of TCA_DEF_DATA
2018-06-26 08:08:06 +08:00
act_skbedit.c
net_sched: move tc_action into tcf_common
2016-07-25 21:49:19 -07:00
act_skbmod.c
net/sched: fix NULL dereference on the error path of tcf_skbmod_init()
2018-04-13 19:48:35 +02:00
act_tunnel_key.c
net/sched: act_tunnel_key: fix NULL dereference when 'goto chain' is used
2018-08-24 13:12:37 +02:00
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: fix soft lockup in tc_classify
2017-01-15 13:42:53 +01:00
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: respect rcu grace period on cls destruction
2016-11-28 10:47:35 -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
net, sched: respect rcu grace period on cls destruction
2016-11-28 10:47:35 -05:00
cls_flower.c
net: sched: correct flower port blocking
2020-03-11 07:53:05 +01:00
cls_fw.c
net sched: stylistic cleanups
2016-09-19 22:04:14 -04:00
cls_matchall.c
net/sched: matchall: add missing validation of TCA_MATCHALL_FLAGS
2020-02-28 15:42:44 +01:00
cls_route.c
net_sched: cls_route: remove the right filter from hashtable
2020-04-02 17:20:29 +02:00
cls_rsvp6.c
…
cls_rsvp.c
…
cls_rsvp.h
cls_rsvp: fix rsvp_policy
2020-02-14 16:30:58 -05:00
cls_tcindex.c
net_sched: keep alloc_hash updated after hash allocation
2020-04-02 17:20:30 +02:00
cls_u32.c
net: sched: Fix memory exposure from short TCA_U32_SEL
2018-09-15 09:42:55 +02:00
em_canid.c
…
em_cmp.c
…
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
…
em_text.c
net: Remove state argument from skb_find_text()
2015-02-22 15:59:54 -05:00
em_u32.c
…
ematch.c
net_sched: ematch: reject invalid TCF_EM_SIMPLE
2020-02-05 13:05:42 +00:00
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: refetch skb protocol for each filter
2019-01-31 08:12:33 +01:00
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: blackhole: tell upper qdisc about dropped packets
2018-07-22 14:27:36 +02:00
sch_cbq.c
sch_cbq: validate TCA_CBQ_WRROPT to avoid crash
2019-10-07 18:53:24 +02:00
sch_choke.c
net_sched: red: Avoid illegal values
2018-02-25 11:05:48 +01:00
sch_codel.c
net: sched: Fix a possible null-pointer dereference in dequeue_func()
2019-08-11 12:22:17 +02:00
sch_drr.c
net_sched: drop packets after root qdisc lock is released
2016-06-25 12:19:35 -04:00
sch_dsmark.c
sch_dsmark: fix potential NULL deref in dsmark_init()
2019-10-07 18:53:23 +02:00
sch_fifo.c
sched: don't use skb queue helpers
2016-09-19 01:47:18 -04:00
sch_fq_codel.c
net/flow_dissector: switch to siphash
2019-11-10 11:23:31 +01:00
sch_fq.c
net: fq: add missing attribute validation for orphan mask
2020-03-20 09:07:40 +01:00
sch_generic.c
net_sched: let qdisc_put() accept NULL pointer
2019-09-21 07:14:23 +02:00
sch_gred.c
net: sched: gred: pass the right attribute to gred_change_table_def()
2018-11-10 07:42:58 -08:00
sch_hfsc.c
net/sched/sch_hfsc.c: remove unused cl_myfadj
2016-08-08 16:06:47 -07:00
sch_hhf.c
net/flow_dissector: switch to siphash
2019-11-10 11:23:31 +01:00
sch_htb.c
sch_htb: fix crash on init failure
2018-09-15 09:43:02 +02:00
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: fix tc -s class show no bstats on class with nolock subqueues
2019-12-05 15:35:30 +01:00
sch_mqprio.c
net: sched: fix tc -s class show no bstats on class with nolock subqueues
2019-12-05 15:35:30 +01:00
sch_multiq.c
net: sched: fix tc -s class show no bstats on class with nolock subqueues
2019-12-05 15:35:30 +01:00
sch_netem.c
net: netem: correct the parent's backlog when corrupted packet was dropped
2020-01-29 10:24:34 +01:00
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
net: sch_prio: When ungrafting, replace with FIFO
2020-01-12 11:24:27 +01:00
sch_qfq.c
sch_qfq: keep backlog updated with qlen
2016-09-23 06:52:31 -04:00
sch_red.c
net_sched: red: Avoid illegal values
2018-02-25 11:05:48 +01:00
sch_sfb.c
net/flow_dissector: switch to siphash
2019-11-10 11:23:31 +01:00
sch_sfq.c
net/flow_dissector: switch to siphash
2019-11-10 11:23:31 +01:00
sch_tbf.c
net: create skb_gso_validate_mac_len()
2019-02-20 10:18:28 +01:00
sch_teql.c
net_sched: drop packets after root qdisc lock is released
2016-06-25 12:19:35 -04:00