Heiner Kallweit 124eee3f69 net: linkwatch: add check for netdevice being present to linkwatch_do_dev ... When bringing down the netdevice (incl. detaching it) and calling netif_carrier_off directly or indirectly the latter triggers an asynchronous linkwatch event. This linkwatch event eventually may fail to access chip registers in the ndo_get_stats/ndo_get_stats64 callback because the device isn't accessible any longer, see call trace in [0]. To prevent this scenario don't check for IFF_UP only, but also make sure that the netdevice is present. [0] https://lists.openwall.net/netdev/2018/03/15/62 Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Tested-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-09-19 21:06:46 -07:00
..
datagram.c	net: simplify sock_poll_wait	2018-07-30 09:10:25 -07:00
dev_addr_lists.c	net: change the comment of dev_mc_init	2018-04-19 12:58:20 -04:00
dev_ioctl.c	net: remove redundant input checks in SIOCSIFTXQLEN case of dev_ifsioc	2018-07-24 11:36:15 -07:00
dev.c	net: Add and use skb_list_del_init().	2018-09-10 10:06:54 -07:00
devlink.c	devlink: Add generic parameters region_snapshot	2018-07-12 17:37:13 -07:00
drop_monitor.c	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
dst_cache.c	net: core: dst_cache_set_ip6: Rename 'addr' parameter to 'saddr' for consistency	2018-03-05 12:52:45 -05:00
dst.c	netfilter: nf_tables: add tunnel support	2018-08-03 21:12:12 +02:00
ethtool.c	ethtool: drop get_settings and set_settings callbacks	2018-08-29 19:46:10 -07:00
failover.c	net: Introduce generic failover module	2018-05-28 22:59:54 -04:00
fib_notifier.c	net: Fix fib notifer to return errno	2018-03-29 14:10:30 -04:00
fib_rules.c	fib_rules: NULL check before kfree is not needed	2018-07-30 09:44:06 -07:00
filter.c	Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net	2018-09-18 09:33:27 -07:00
flow_dissector.c	net: core: Use FIELD_SIZEOF directly instead of reimplementing its function	2018-09-19 20:58:04 -07:00
gen_estimator.c	net: core: protect rate estimator statistics pointer with lock	2018-08-11 12:37:10 -07:00
gen_stats.c	gen_stats: Fix netlink stats dumping in the presence of padding	2018-07-04 14:44:45 +09:00
gro_cells.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
hwbm.c
link_watch.c	net: linkwatch: add check for netdevice being present to linkwatch_do_dev	2018-09-19 21:06:46 -07:00
lwt_bpf.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next	2018-08-07 11:02:05 -07:00
lwtunnel.c	ipv6: sr: define core operations for seg6local lightweight tunnel	2017-08-07 14:16:22 -07:00
Makefile	net: Introduce generic failover module	2018-05-28 22:59:54 -04:00
neighbour.c	neighbour: confirm neigh entries when ARP packet is received	2018-09-13 12:01:29 -07:00
net_namespace.c	Merge branch 'ida-4.19' of git://git.infradead.org/users/willy/linux-dax	2018-08-26 11:48:42 -07:00
net-procfs.c	proc: introduce proc_create_net{,_data}	2018-05-16 07:24:30 +02:00
net-sysfs.c	net: allow to call netif_reset_xps_queues() under cpus_read_lock	2018-08-09 14:25:06 -07:00
net-sysfs.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
net-traces.c	net/ipv6: Udate fib6_table_lookup tracepoint	2018-05-24 23:01:15 -04:00
netclassid_cgroup.c	cgroup: add @flags to css_task_iter_start() and implement CSS_TASK_ITER_PROCS	2017-07-21 11:14:51 -04:00
netevent.c
netpoll.c	netpoll: Use lockdep to assert IRQs are disabled/enabled	2017-11-08 11:13:54 +01:00
netprio_cgroup.c	net: remove duplicate includes	2017-12-13 13:18:46 -05:00
page_pool.c	net/page_pool: Fix inconsistent lock state warning	2018-07-19 23:23:01 -07:00
pktgen.c	pktgen: Fix fall-through annotation	2018-09-13 15:36:41 -07:00
ptp_classifier.c
request_sock.c	ipv4: Namespaceify tcp_max_syn_backlog knob	2016-12-29 11:38:31 -05:00
rtnetlink.c	Merge ra.kernel.org:/pub/scm/linux/kernel/git/davem/net	2018-09-18 09:33:27 -07:00
scm.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/user.h>	2017-03-02 08:42:29 +01:00
secure_seq.c	infiniband: i40iw, nes: don't use wall time for TCP sequence numbers	2018-07-11 12:10:19 -06:00
skbuff.c	tcp: really ignore MSG_ZEROCOPY if no SO_ZEROCOPY	2018-09-07 23:11:06 -07:00
sock_diag.c	net: sock_diag: Fix spectre v1 gadget in __sock_diag_cmd()	2018-08-14 10:01:24 -07:00
sock_reuseport.c	bpf: Enable BPF_PROG_TYPE_SK_REUSEPORT bpf prog in reuseport selection	2018-08-11 01:58:46 +02:00
sock.c	net: Add and use skb_mark_not_on_list().	2018-09-10 10:06:54 -07:00
stream.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
sysctl_net_core.c	headers: untangle kmemleak.h from mm.h	2018-04-05 21:36:27 -07:00
timestamping.c
tso.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
utils.c	net: Remove some unneeded semicolon	2018-08-04 13:05:39 -07:00
xdp.c	xdp: remove redundant variable 'headroom'	2018-09-01 01:35:53 +02:00