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linux-sg2042/net/core
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Loic Prylli 5495119465 net: Fix NETDEV_CHANGE notifier usage causing spurious arp flush 
A bug was introduced in NETDEV_CHANGE notifier sequence causing the
arp table to be sometimes spuriously cleared (including manual arp
entries marked permanent), upon network link carrier changes.

The changed argument for the notifier was applied only to a single
caller of NETDEV_CHANGE, missing among others netdev_state_change().
So upon net_carrier events induced by the network, which are
triggering a call to netdev_state_change(), arp_netdev_event() would
decide whether to clear or not arp cache based on random/junk stack
values (a kind of read buffer overflow).

Fixes: be9efd3653 ("net: pass changed flags along with NETDEV_CHANGE event")
Fixes: 6c8b4e3ff8 ("arp: flush arp cache on IFF_NOARP change")
Signed-off-by: Loic Prylli <loicp@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2014-07-07 21:20:01 -07:00
..
Makefile net: Add a software TSO helper API 2014-05-22 14:57:15 -04:00
datagram.c net: Fix save software checksum complete 2014-06-15 01:00:49 -07:00
dev.c net: Fix NETDEV_CHANGE notifier usage causing spurious arp flush 2014-07-07 21:20:01 -07:00
dev_addr_lists.c net: Add support for device specific address syncing 2014-06-02 10:40:54 -07:00
dev_ioctl.c net_tstamp: Add SIOCGHWTSTAMP ioctl to match SIOCSHWTSTAMP 2013-11-19 19:07:21 +00:00
drop_monitor.c net: drop_monitor: fix the value of maxattr 2013-12-09 21:10:38 -05:00
dst.c ipv4: fix dst race in sk_dst_get() 2014-06-25 17:41:44 -07:00
ethtool.c ethtool: Check that reserved fields of struct ethtool_rxfh are 0 2014-06-03 02:43:16 +01:00
fib_rules.c net: fix 'ip rule' iif/oif device rename 2014-02-09 19:02:52 -08:00
filter.c net: filter: Use kcalloc/kmalloc_array to allocate arrays 2014-06-25 16:40:02 -07:00
flow.c CPU hotplug notifiers registration fixes for 3.15-rc1 2014-04-07 14:55:46 -07:00
flow_dissector.c net: Rename skb->rxhash to skb->hash 2014-03-26 15:58:20 -04:00
gen_estimator.c net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
gen_stats.c net_sched: add 64bit rate estimators 2013-06-11 02:51:03 -07:00
iovec.c net: rework recvmsg handler msg_name and msg_namelen logic 2013-11-20 21:52:30 -05:00
link_watch.c arch: Mass conversion of smp_mb__*() 2014-04-18 14:20:48 +02:00
neighbour.c neigh: set nud_state to NUD_INCOMPLETE when probing router reachability 2014-05-13 12:43:05 -04:00
net-procfs.c rps: selective flow shedding during softnet overflow 2013-05-20 13:48:04 -07:00
net-sysfs.c Revert "net: return actual error on register_queue_kobjects" 2014-06-19 18:12:15 -07:00
net-sysfs.h net: netdev_kobject_init: annotate with __init 2014-01-05 20:27:54 -05:00
net-traces.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
net_namespace.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-05-24 00:32:30 -04:00
netclassid_cgroup.c cgroup: remove css_parent() 2014-05-16 13:22:48 -04:00
netevent.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
netpoll.c netpoll: Use skb_irq_freeable to make zap_completion_queue safe. 2014-04-01 17:53:36 -04:00
netprio_cgroup.c cgroup: remove css_parent() 2014-05-16 13:22:48 -04:00
pktgen.c pktgen: Use seq_puts() where seq_printf() is not needed 2014-05-16 17:30:30 -04:00
ptp_classifier.c net: filter: let unattached filters use sock_fprog_kern 2014-05-23 16:48:05 -04:00
request_sock.c net: remove unnecessary return's 2014-02-13 18:33:38 -05:00
rtnetlink.c rtnetlink: fix userspace API breakage for iproute2 < v3.9.0 2014-06-12 11:07:42 -07:00
scm.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2013-09-07 14:35:32 -07:00
secure_seq.c inetpeer: get rid of ip_id_count 2014-06-02 11:00:41 -07:00
skbuff.c net: fix setting csum_start in skb_segment() 2014-06-25 20:45:54 -07:00
sock.c net: Split sk_no_check into sk_no_check_{rx,tx} 2014-05-23 16:28:53 -04:00
sock_diag.c net: Move the permission check in sock_diag_put_filterinfo to packet_diag_dump 2014-04-24 13:44:53 -04:00
stream.c net: replace macros net_random and net_srandom with direct calls to prandom 2014-01-14 15:15:25 -08:00
sysctl_net_core.c rps: NUMA flow limit allocations 2013-12-19 19:00:07 -05:00
timestamping.c net: ptp: move PTP classifier in its own file 2014-04-01 16:43:18 -04:00
tso.c net: tso: Export symbols for modular build 2014-05-30 15:52:03 -07:00
user_dma.c net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules 2011-10-31 19:30:30 -04:00
utils.c net: avoid dependency of net_get_random_once on nop patching 2014-05-14 00:37:34 -04:00