Jakub Kicinski ac5b70198a net: fix race on decreasing number of TX queues ... netif_set_real_num_tx_queues() can be called when netdev is up. That usually happens when user requests change of number of channels/rings with ethtool -L. The procedure for changing the number of queues involves resetting the qdiscs and setting dev->num_tx_queues to the new value. When the new value is lower than the old one, extra care has to be taken to ensure ordering of accesses to the number of queues vs qdisc reset. Currently the queues are reset before new dev->num_tx_queues is assigned, leaving a window of time where packets can be enqueued onto the queues going down, leading to a likely crash in the drivers, since most drivers don't check if TX skbs are assigned to an active queue. Fixes: e6484930d7 ("net: allocate tx queues in register_netdevice") Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2018-02-14 14:12:55 -05:00
..
Makefile	xdp: base API for new XDP rx-queue info concept	2018-01-05 15:21:20 -08:00
datagram.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
dev.c	net: fix race on decreasing number of TX queues	2018-02-14 14:12:55 -05:00
dev_addr_lists.c	net: fix spelling for synchronized	2014-11-18 15:26:32 -05:00
dev_ioctl.c	dev_ioctl(): move copyin/copyout to callers	2018-01-24 19:13:45 -05:00
devlink.c	devlink: fix memory leak on 'resource'	2018-01-22 09:27:10 -05:00
drop_monitor.c	treewide: setup_timer() -> timer_setup()	2017-11-21 15:57:07 -08:00
dst.c	net: Remove dst->next	2017-11-30 09:54:27 -05:00
dst_cache.c	net: dst_cache_per_cpu_dst_set() can be static	2016-03-18 17:45:08 -04:00
ethtool.c	bitmap: replace bitmap_{from,to}_u32array	2018-02-06 18:32:44 -08:00
fib_notifier.c	net: Protect iterations over net::fib_notifier_ops in fib_seq_sum()	2017-11-15 14:01:30 +09:00
fib_rules.c	fib_rules: exit_net cleanup check added	2017-11-14 15:45:53 +09:00
filter.c	bpf: fix subprog verifier bypass by div/mod by 0 exception	2018-01-26 16:42:05 -08:00
flow_dissector.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-19 22:59:33 -05:00
gen_estimator.c	net_sched: gen_estimator: fix lockdep splat	2018-01-29 14:29:10 -05:00
gen_stats.c	net: sched: add support for TCQ_F_NOLOCK subqueues to sch_mq	2017-12-08 13:32:26 -05:00
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	net: hwbm: Fix unbalanced spinlock in error case	2016-05-25 12:35:09 -07:00
link_watch.c	net: link_watch: mark bonding link events urgent	2018-01-23 19:43:30 -05:00
lwt_bpf.c	bpf: rename bpf_compute_data_end into bpf_compute_data_pointers	2017-09-26 13:36:44 -07:00
lwtunnel.c	ipv6: sr: define core operations for seg6local lightweight tunnel	2017-08-07 14:16:22 -07:00
neighbour.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2018-01-17 00:10:42 -05:00
net-procfs.c	net: delete /proc THIS_MODULE references	2018-01-16 15:01:33 -05:00
net-sysfs.c	net: introduce helper dev_change_tx_queue_len()	2018-01-29 12:42:15 -05:00
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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2017-11-04 09:26:51 +09:00
net_namespace.c	net: Move net:netns_ids destruction out of rtnl_lock() and document locking scheme	2018-01-25 11:15:35 -05:00
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	netevent: remove automatic variable in register_netevent_notifier()	2015-05-31 00:03:21 -07:00
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
pktgen.c	pktgen: Clean read user supplied flag mess	2018-01-24 15:03:36 -05:00
ptp_classifier.c	ptp: Change ptp_class to a proper bitmask	2015-11-03 11:08:22 -05:00
request_sock.c	ipv4: Namespaceify tcp_max_syn_backlog knob	2016-12-29 11:38:31 -05:00
rtnetlink.c	rtnetlink: require unique netns identifier	2018-02-08 14:33:20 -05:00
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	tcp: Namespaceify sysctl_tcp_timestamps	2017-06-08 10:53:29 -04:00
skbuff.c	net: Whitelist the skbuff_head_cache "cb" field	2018-02-08 15:15:48 -05:00
sock.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
sock_diag.c	net: core: fix module type in sock_diag_bind	2018-01-09 11:28:58 -05:00
sock_reuseport.c	soreuseport: fix mem leak in reuseport_add_sock()	2018-02-02 19:47:03 -05:00
stream.c	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
sysctl_net_core.c	bpf: restrict access to core bpf sysctls	2018-01-19 18:37:00 -08:00
timestamping.c	net: skb_defer_rx_timestamp should check for phydev before setting up classify	2015-07-09 14:17:15 -07:00
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	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2017-05-02 16:40:27 -07:00
xdp.c	xdp/qede: setup xdp_rxq_info and intro xdp_rxq_info_is_reg	2018-01-05 15:21:21 -08:00