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linux/net/sched
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Colin Ian King 22ce97fe49 mqprio: fix potential null pointer dereference on opt 
The pointer opt has a null check however before for this check opt is
dereferenced when len is initialized, hence we potentially have a null
pointer deference on opt.  Avoid this by checking for a null opt before
dereferencing it.

Detected by CoverityScan, CID#1458234 ("Dereference before null check")

Fixes: 4e8b86c06269 ("mqprio: Introduce new hardware offload mode and shaper in mqprio")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-10-19 13:13:14 +01:00
..
act_api.c
net: sched: introduce per-egress action device callbacks
2017-10-11 20:15:43 -07:00
act_bpf.c
bpf: rename bpf_compute_data_end into bpf_compute_data_pointers
2017-09-26 13:36:44 -07:00
act_connmark.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_csum.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_gact.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_ife.c
net_sched: fix a compile warning in act_ife
2017-10-14 18:43:45 -07:00
act_ipt.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_meta_mark.c
net sched actions: change IFE modules alias names
2017-10-12 22:13:20 -07:00
act_meta_skbprio.c
net sched actions: change IFE modules alias names
2017-10-12 22:13:20 -07:00
act_meta_skbtcindex.c
net sched actions: change IFE modules alias names
2017-10-12 22:13:20 -07:00
act_mirred.c
net: sched: make tc_action_ops->get_dev return dev and avoid passing net
2017-10-11 20:15:42 -07:00
act_nat.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_pedit.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_police.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_sample.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_simple.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_skbedit.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_skbmod.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_tunnel_key.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
act_vlan.c
net/sched: Change act_api and act_xxx modules to use IDR
2017-08-30 14:38:51 -07:00
cls_api.c
net: sched: propagate q and parent from caller down to tcf_fill_node
2017-10-16 21:00:41 +01:00
cls_basic.c
net_sched: remove redundant assignment to ret
2017-10-01 04:08:00 +01:00
cls_bpf.c
net_sched: use idr to allocate bpf filter handles
2017-09-28 09:43:41 -07:00
cls_cgroup.c
net_sched: use void pointer for filter handle
2017-08-07 14:12:17 -07:00
cls_flow.c
net: sched: Convert timers to use timer_setup()
2017-10-18 12:39:54 +01:00
cls_flower.c
net: sched: convert cls_flower->egress_dev users to tc_setup_cb_egdev infra
2017-10-11 20:15:43 -07:00
cls_fw.c
net: sched: tcindex, fw, flow: use tcf_block_q helper to get struct Qdisc
2017-10-16 21:00:41 +01:00
cls_matchall.c
net/sched: cls_matchall: fix crash when used with classful qdisc
2017-09-18 16:37:36 -07:00
cls_route.c
net_sched: add reverse binding for tc class
2017-08-31 11:40:52 -07:00
cls_rsvp6.c
…
cls_rsvp.c
…
cls_rsvp.h
net/sched: fix pointer check in gen_handle
2017-09-11 14:34:52 -07:00
cls_tcindex.c
net: sched: tcindex, fw, flow: use tcf_block_q helper to get struct Qdisc
2017-10-16 21:00:41 +01:00
cls_u32.c
net: sched: cls_u32: use block instead of q in tc_u_common
2017-10-16 21:00:41 +01:00
em_canid.c
net: sched: remove tcf_proto from ematch calls
2014-10-06 18:02:32 -04:00
em_cmp.c
net_sched: cleanups
2011-01-19 23:31:12 -08:00
em_ipset.c
netfilter: x_tables: move hook state into xt_action_param structure
2016-11-03 10:56:21 +01:00
em_meta.c
net: convert sock.sk_refcnt from atomic_t to refcount_t
2017-07-01 07:39:08 -07:00
em_nbyte.c
net: sched: remove tcf_proto from ematch calls
2014-10-06 18:02:32 -04:00
em_text.c
net: Remove state argument from skb_find_text()
2015-02-22 15:59:54 -05:00
em_u32.c
net_sched: cleanups
2011-01-19 23:31:12 -08:00
ematch.c
net: sched: ematch: obtain net pointer from blocks
2017-10-16 21:00:40 +01:00
Kconfig
net: sched: select cls when cls_act is enabled
2017-06-05 10:56:36 -04:00
Makefile
net/sched: Introduce sample tc action
2017-01-24 13:44:28 -05:00
sch_api.c
net: sched: use tcf_block_q helper to get q pointer for sch_tree_lock
2017-10-16 21:00:41 +01:00
sch_atm.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_blackhole.c
net_sched: drop packets after root qdisc lock is released
2016-06-25 12:19:35 -04:00
sch_cbq.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_choke.c
treewide: use kv[mz]alloc* rather than opencoded variants
2017-05-08 17:15:13 -07:00
sch_codel.c
netlink: pass extended ACK struct to parsing functions
2017-04-13 13:58:22 -04:00
sch_drr.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_dsmark.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_fifo.c
sched: don't use skb queue helpers
2016-09-19 01:47:18 -04:00
sch_fq_codel.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_fq.c
mm, tree wide: replace __GFP_REPEAT by __GFP_RETRY_MAYFAIL with more useful semantic
2017-07-12 16:26:03 -07:00
sch_generic.c
net: sched: Convert timers to use timer_setup()
2017-10-18 12:39:54 +01:00
sch_gred.c
netlink: pass extended ACK struct to parsing functions
2017-04-13 13:58:22 -04:00
sch_hfsc.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_hhf.c
sch_hhf: fix null pointer dereference on init failure
2017-08-30 15:26:11 -07:00
sch_htb.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_ingress.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_mq.c
net_sched: remove tc class reference counting
2017-08-25 17:19:10 -07:00
sch_mqprio.c
mqprio: fix potential null pointer dereference on opt
2017-10-19 13:13:14 +01:00
sch_multiq.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_netem.c
net: add rb_to_skb() and other rb tree helpers
2017-10-07 00:28:53 +01:00
sch_pie.c
net: sched: Convert timers to use timer_setup()
2017-10-18 12:39:54 +01:00
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: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_qfq.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_red.c
net: sched: Convert timers to use timer_setup()
2017-10-18 12:39:54 +01:00
sch_sfb.c
net: sched: store Qdisc pointer in struct block
2017-10-16 21:00:40 +01:00
sch_sfq.c
net: sched: Convert timers to use timer_setup()
2017-10-18 12:39:54 +01:00
sch_tbf.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2017-09-01 17:42:05 -07:00
sch_teql.c
net: make ndo_get_stats64 a void function
2017-01-08 17:51:44 -05:00