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linux/net/sched
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Davide Caratti 8f92330b08 net/sched: act_mpls: ensure LSE is pullable before reading it 
[ Upstream commit 9608fa6530 ]

when 'act_mpls' is used to mangle the LSE, the current value is read from
the packet dereferencing 4 bytes at mpls_hdr(): ensure that the label is
contained in the skb "linear" area.

Found by code inspection.

v2:
 - use MPLS_HLEN instead of sizeof(new_lse), thanks to Jakub Kicinski

Fixes: 2a2ea50870 ("net: sched: add mpls manipulation actions to TC")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Acked-by: Guillaume Nault <gnault@redhat.com>
Link: https://lore.kernel.org/r/3243506cba43d14858f3bd21ee0994160e44d64a.1606987058.git.dcaratti@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-08 10:40:27 +01:00
..
act_api.c
net_sched: remove a redundant goto chain check
2020-10-29 09:57:24 +01:00
act_bpf.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_connmark.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_csum.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_ct.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_ctinfo.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_gact.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_ife.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_ipt.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
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: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_mpls.c
net/sched: act_mpls: ensure LSE is pullable before reading it
2020-12-08 10:40:27 +01:00
act_nat.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_pedit.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_police.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_sample.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_simple.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_skbedit.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_skbmod.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
act_tunnel_key.c
net/sched: act_tunnel_key: fix OOB write in case of IPv6 ERSPAN tunnels
2020-10-29 09:57:26 +01:00
act_vlan.c
net_sched: defer tcf_idr_insert() in tcf_action_init_1()
2020-10-14 10:33:06 +02:00
cls_api.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-22 09:32:48 +02:00
cls_basic.c
net_sched: fix ops->bind_class() implementations
2020-02-01 09:34:38 +00:00
cls_bpf.c
net_sched: fix ops->bind_class() implementations
2020-02-01 09:34:38 +00:00
cls_cgroup.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
cls_flow.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-22 09:32:48 +02:00
cls_flower.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-22 09:32:48 +02:00
cls_fw.c
net_sched: fix ops->bind_class() implementations
2020-02-01 09:34:38 +00:00
cls_matchall.c
net/sched: matchall: add missing validation of TCA_MATCHALL_FLAGS
2020-02-24 08:36:22 +01:00
cls_route.c
net_sched: cls_route: remove the right filter from hashtable
2020-04-01 11:01:36 +02:00
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
cls_rsvp: fix rsvp_policy
2020-02-11 04:35:03 -08:00
cls_tcindex.c
net_sched: fix a missing refcnt in tcindex_init()
2020-04-13 10:48:04 +02:00
cls_u32.c
net_sched: fix ops->bind_class() implementations
2020-02-01 09:34:38 +00:00
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
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-22 09:32:48 +02:00
em_ipt.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-22 09:32:48 +02:00
em_meta.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-22 09:32:48 +02:00
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
net_sched: ematch: reject invalid TCF_EM_SIMPLE
2020-02-01 09:34:38 +00:00
Kconfig
net/sched: Set default of CONFIG_NET_TC_SKB_EXT to N
2019-09-27 20:08:28 +02:00
Makefile
net/sched: Introduce action ct
2019-07-09 12:11:59 -07:00
sch_api.c
net_sched: walk through all child classes in tc_bind_tclass()
2020-02-01 09:34:39 +00:00
sch_atm.c
net_sched: fix a memory leak in atm_tc_init()
2020-07-22 09:32:48 +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
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-22 09:32:48 +02:00
sch_cbq.c
sch_cbq: validate TCA_CBQ_WRROPT to avoid crash
2019-09-30 11:07:46 -07:00
sch_cbs.c
net: cbs: Fix software cbs to consider packet sending time
2020-04-01 11:01:33 +02:00
sch_choke.c
sch_choke: avoid potential panic in choke_reset()
2020-05-14 07:58:22 +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
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-22 09:32:48 +02:00
sch_etf.c
sched: etf: do not assume all sockets are full blown
2020-04-29 16:33:09 +02:00
sch_fifo.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
sch_fq_codel.c
fq_codel: fix TCA_FQ_CODEL_DROP_BATCH_SIZE sanity checks
2020-05-14 07:58:20 +02:00
sch_fq.c
net: fq: add missing attribute validation for orphan mask
2020-03-18 07:17:45 +01:00
sch_generic.c
net: sch_generic: fix the missing new qdisc assignment bug
2020-11-18 19:20:33 +01:00
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
net/flow_dissector: switch to siphash
2019-10-23 20:13:22 -07:00
sch_htb.c
net: sched: sch_htb: don't call qdisc_put() while holding tree lock
2019-09-27 12:13:55 +02:00
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
net: sched: fix dump qlen for sch_mq/sch_mqprio with NOLOCK subqueues
2019-12-18 16:08:24 +01:00
sch_mqprio.c
net: sched: fix dump qlen for sch_mq/sch_mqprio with NOLOCK subqueues
2019-12-18 16:08:24 +01:00
sch_multiq.c
net: sched: fix tc -s class show no bstats on class with nolock subqueues
2019-12-04 22:30:54 +01:00
sch_netem.c
netem: fix zero division in tabledist
2020-11-01 12:01:03 +01:00
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
net: sch_prio: When ungrafting, replace with FIFO
2020-01-12 12:21:49 +01:00
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
net/flow_dissector: switch to siphash
2019-10-23 20:13:22 -07:00
sch_sfq.c
sch_sfq: validate silly quantum values
2020-05-14 07:58:22 +02:00
sch_skbprio.c
net_sched: sch_skbprio: add message validation to skbprio_change()
2020-05-14 07:58:21 +02:00
sch_taprio.c
taprio: Fix allowing too small intervals
2020-09-26 18:03:13 +02:00
sch_tbf.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
sch_teql.c
sched: consistently handle layer3 header accesses in the presence of VLANs
2020-07-22 09:32:48 +02:00