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Kuniyuki Iwashima bf955b5ab8 net: Fix data-races around weight_p and dev_weight_[rt]x_bias. 
While reading weight_p, it can be changed concurrently.  Thus, we need
to add READ_ONCE() to its reader.

Also, dev_[rt]x_weight can be read/written at the same time.  So, we
need to use READ_ONCE() and WRITE_ONCE() for its access.  Moreover, to
use the same weight_p while changing dev_[rt]x_weight, we add a mutex
in proc_do_dev_weight().

Fixes: 3d48b53fb2ae ("net: dev_weight: TX/RX orthogonality")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-08-24 13:46:57 +01:00
..
act_api.c
net/sched: act_api: Notify user space if any actions were flushed before error
2022-06-27 21:51:23 -07:00
act_bpf.c
bpf: Keep the (rcv) timestamp behavior for the existing tc-bpf@ingress
2022-03-03 14:38:48 +00:00
act_connmark.c
flow_offload: fill flags to action structure
2021-12-19 14:08:47 +00:00
act_csum.c
net/sched: act_api: Add extack to offload_act_setup() callback
2022-04-08 13:45:43 +01:00
act_ct.c
net/sched: act_ct: set 'net' pointer when creating new nf_flow_table
2022-07-11 16:25:14 +02:00
act_ctinfo.c
flow_offload: fill flags to action structure
2021-12-19 14:08:47 +00:00
act_gact.c
net/sched: act_gact: Add extack messages for offload failure
2022-04-08 13:45:43 +01:00
act_gate.c
net/sched: act_api: Add extack to offload_act_setup() callback
2022-04-08 13:45:43 +01:00
act_ife.c
flow_offload: fill flags to action structure
2021-12-19 14:08:47 +00:00
act_ipt.c
flow_offload: fill flags to action structure
2021-12-19 14:08:47 +00:00
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: rename reference+tracking helpers
2022-06-09 21:52:55 -07:00
act_mpls.c
net/sched: act_mpls: Add extack messages for offload failure
2022-04-08 13:45:43 +01:00
act_nat.c
flow_offload: fill flags to action structure
2021-12-19 14:08:47 +00:00
act_pedit.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-05-19 11:23:59 -07:00
act_police.c
net/sched: act_police: allow 'continue' action offload
2022-07-06 12:44:39 +01:00
act_sample.c
net/sched: act_api: Add extack to offload_act_setup() callback
2022-04-08 13:45:43 +01:00
act_simple.c
flow_offload: fill flags to action structure
2021-12-19 14:08:47 +00:00
act_skbedit.c
net: sched: support hash selecting tx queue
2022-04-19 12:20:45 +02:00
act_skbmod.c
flow_offload: fill flags to action structure
2021-12-19 14:08:47 +00:00
act_tunnel_key.c
net/sched: act_tunnel_key: Add extack message for offload failure
2022-04-08 13:45:43 +01:00
act_vlan.c
net/sched: act_vlan: Add extack message for offload failure
2022-04-08 13:45:43 +01:00
cls_api.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
2022-07-21 13:03:39 -07:00
cls_basic.c
net_sched: refactor TC action init API
2021-08-02 10:24:38 +01:00
cls_bpf.c
bpf: Keep the (rcv) timestamp behavior for the existing tc-bpf@ingress
2022-03-03 14:38:48 +00:00
cls_cgroup.c
net_sched: refactor TC action init API
2021-08-02 10:24:38 +01:00
cls_flow.c
net_sched: refactor TC action init API
2021-08-02 10:24:38 +01:00
cls_flower.c
net/sched: flower: Add PPPoE filter
2022-07-26 10:20:29 -07:00
cls_fw.c
net_sched: refactor TC action init API
2021-08-02 10:24:38 +01:00
cls_matchall.c
net/sched: matchall: Avoid overwriting error messages
2022-04-08 13:45:43 +01:00
cls_route.c
net_sched: cls_route: disallow handle of 0
2022-08-15 11:46:30 +01:00
cls_rsvp6.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
net_sched: refactor TC action init API
2021-08-02 10:24:38 +01:00
cls_tcindex.c
net_sched: refactor TC action init API
2021-08-02 10:24:38 +01:00
cls_u32.c
net/sched: cls_u32: fix possible leak in u32_init_knode()
2022-04-15 14:26:11 -07:00
em_canid.c
net: sched: kerneldoc fixes
2020-07-13 17:20:40 -07:00
em_cmp.c
net: sched: fix misspellings using misspell-fixer tool
2020-11-10 17:00:28 -08:00
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
net_sched: em_meta: add READ_ONCE() in var_sk_bound_if()
2022-05-16 10:31:06 +01:00
em_nbyte.c
net: sched: Return the correct errno code
2021-02-06 11:15:28 -08:00
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
net: sched: Fix spelling mistakes
2021-05-31 22:44:56 -07:00
Kconfig
net: sched: incorrect Kconfig dependencies on Netfilter modules
2020-12-09 15:49:29 -08:00
Makefile
net/sched: sch_frag: add generic packet fragment support.
2020-11-27 14:36:02 -08:00
sch_api.c
net: rename reference+tracking helpers
2022-06-09 21:52:55 -07:00
sch_atm.c
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
sch_blackhole.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_cake.c
sch_cake: revise Diffserv docs
2022-01-07 08:41:29 -08:00
sch_cbq.c
net/sched: sch_cbq: change the type of cbq_set_lss to void
2022-07-27 18:30:18 -07:00
sch_cbs.c
net: don't include ethtool.h from netdevice.h
2020-11-23 17:27:04 -08:00
sch_choke.c
net: sched: validate stab values
2021-03-10 15:47:52 -08:00
sch_codel.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_drr.c
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
sch_dsmark.c
net/sched: store the last executed chain also for clsact egress
2021-07-29 22:17:37 +01:00
sch_etf.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_ets.c
net/sched: sch_ets: don't remove idle classes from the round-robin list
2021-12-13 12:30:23 +00:00
sch_fifo.c
net_sched: fix NULL deref in fifo_set_limit()
2021-10-01 14:59:10 -07:00
sch_fq_codel.c
fq_codel: generalise ce_threshold marking for subset of traffic
2021-10-20 15:24:36 -07:00
sch_fq_pie.c
net/sched: fq_pie: prevent dismantle issue
2021-12-09 08:01:00 -08:00
sch_fq.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_frag.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2021-12-31 14:35:40 +00:00
sch_generic.c
net: Fix data-races around weight_p and dev_weight_[rt]x_bias.
2022-08-24 13:46:57 +01:00
sch_gred.c
net: sched: gred: dynamically allocate tc_gred_qopt_offload
2021-10-27 12:06:52 -07:00
sch_hfsc.c
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
sch_hhf.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_htb.c
sch_htb: Fail on unsupported parameters when offload is requested
2022-01-25 20:00:02 -08:00
sch_ingress.c
net: sched: Pass ingress block to tcf_classify_ingress
2020-02-19 17:49:48 -08:00
sch_mq.c
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
sch_mqprio.c
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
sch_multiq.c
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
sch_netem.c
net/sched: sch_netem: Fix arithmetic in netem_dump() for 32-bit platforms
2022-06-17 20:29:38 -07:00
sch_pie.c
net: sched: fix misspellings using misspell-fixer tool
2020-11-10 17:00:28 -08:00
sch_plug.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_prio.c
net: sched: Remove Qdisc::running sequence counter
2021-10-18 12:54:41 +01:00
sch_qfq.c
sch_qfq: prevent shift-out-of-bounds in qfq_init_qdisc
2022-01-04 12:36:51 +00:00
sch_red.c
net: sched: validate stab values
2021-03-10 15:47:52 -08:00
sch_sfb.c
net/sched: store the last executed chain also for clsact egress
2021-07-29 22:17:37 +01:00
sch_sfq.c
net/sched: store the last executed chain also for clsact egress
2021-07-29 22:17:37 +01:00
sch_skbprio.c
Revert "net: sched: Pass root lock to Qdisc_ops.enqueue"
2020-07-16 16:48:34 -07:00
sch_taprio.c
time64.h: consolidate uses of PSEC_PER_NSEC
2022-06-30 21:18:16 -07:00
sch_tbf.c
net: sch_tbf: Add a graft command
2021-10-19 12:24:51 +01:00
sch_teql.c
net: sched: sch_teql: fix null-pointer dereference
2021-04-08 14:14:42 -07:00