linux/drivers/net/bonding
Nicolas Dichtel ed2a80ab7b rtnl/bond: don't send rtnl msg for unregistered iface
Before the patch, the command 'ip link add bond2 type bond mode 802.3ad'
causes the kernel to send a rtnl message for the bond2 interface, with an
ifindex 0.

'ip monitor' shows:
0: bond2: <BROADCAST,MULTICAST,MASTER> mtu 1500 state DOWN group default
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
9: bond2@NONE: <BROADCAST,MULTICAST,MASTER> mtu 1500 qdisc noop state DOWN group default
    link/ether ea:3e:1f:53:92:7b brd ff:ff:ff:ff:ff:ff
[snip]

The patch fixes the spotted bug by checking in bond driver if the interface
is registered before calling the notifier chain.
It also adds a check in rtmsg_ifinfo() to prevent this kind of bug in the
future.

Fixes: d4261e5650 ("bonding: create netlink event when bonding option is changed")
CC: Jiri Pirko <jiri@resnulli.us>
Reported-by: Julien Meunier <julien.meunier@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-17 22:43:07 -04:00
..
Makefile bonding: add sysfs /slave dir for bond slave devices. 2014-01-17 18:51:58 -08:00
bond_3ad.c bonding: Remove unnecessary initialization 2015-04-08 12:12:15 -04:00
bond_alb.c vlan: kill vlan_put_tag helper 2014-11-21 14:20:17 -05:00
bond_debugfs.c net: Move bonding headers under include/net 2014-11-10 13:27:49 -05:00
bond_main.c net: Fix Kernel Panic in bonding driver debugfs file: rlb_hash_table 2015-04-29 15:37:19 -04:00
bond_netlink.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-12-10 15:48:20 -05:00
bond_options.c rtnl/bond: don't send rtnl msg for unregistered iface 2015-05-17 22:43:07 -04:00
bond_procfs.c net/bonding: Make DRV macros private 2015-04-26 22:59:53 -04:00
bond_sysfs.c net: Move bonding headers under include/net 2014-11-10 13:27:49 -05:00
bond_sysfs_slave.c net: Move bonding headers under include/net 2014-11-10 13:27:49 -05:00
bonding_priv.h net/bonding: Make DRV macros private 2015-04-26 22:59:53 -04:00