Nikolay Aleksandrov d0fe8c888b netpoll: fix NULL pointer dereference in netpoll_cleanup ...

I've been hitting a NULL ptr deref while using netconsole because the
np->dev check and the pointer manipulation in netpoll_cleanup are done
without rtnl and the following sequence happens when having a netconsole
over a vlan and we remove the vlan while disabling the netconsole:
	CPU 1					CPU2
					removes vlan and calls the notifier
enters store_enabled(), calls
netdev_cleanup which checks np->dev
and then waits for rtnl
					executes the netconsole netdev
					release notifier making np->dev
					== NULL and releases rtnl
continues to dereference a member of
np->dev which at this point is == NULL

Signed-off-by: Nikolay Aleksandrov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

2013-09-19 14:15:53 -04:00

..

datagram.c

net: use skb_copy_datagram_from_iovec() in zerocopy_sg_from_iovec()

2013-08-07 16:52:38 -07:00

dev_addr_lists.c

…

dev_ioctl.c

…

dev.c

net: correctly interlink lower/upper devices

2013-09-04 00:27:26 -04:00

drop_monitor.c

…

dst.c

…

ethtool.c

…

fib_rules.c

fib_rules: fix suppressor names and default values

2013-08-03 10:40:23 -07:00

filter.c

…

flow_dissector.c

net: fix multiqueue selection

2013-09-11 16:10:00 -04:00

flow.c

…

gen_estimator.c

…

gen_stats.c

…

iovec.c

net: move iov_pages() to net/core/iovec.c

2013-08-07 16:52:33 -07:00

link_watch.c

…

Makefile

…

neighbour.c

net: neighbour: Remove CONFIG_ARPD

2013-09-03 21:41:43 -04:00

net_namespace.c

userns: Kill nsown_capable it makes the wrong thing easy

2013-08-30 23:44:11 -07:00

net-procfs.c

…

net-sysfs.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

net-sysfs.h

…

net-traces.c

…

netevent.c

…

netpoll.c

netpoll: fix NULL pointer dereference in netpoll_cleanup

2013-09-19 14:15:53 -04:00

netprio_cgroup.c

cgroup: make cgroup_taskset deal with cgroup_subsys_state instead of cgroup

2013-08-08 20:11:27 -04:00

pktgen.c

pktgen: add needed include file

2013-07-29 00:47:14 -07:00

request_sock.c

…

rtnetlink.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2013-08-16 15:37:26 -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

…

skbuff.c

skb: allow skb_scrub_packet() to be used by tunnels

2013-09-04 00:27:25 -04:00

sock_diag.c

…

sock.c

net: attempt high order allocations in sock_alloc_send_pskb()

2013-08-10 01:16:44 -07:00

stream.c

…

sysctl_net_core.c

qdisc: allow setting default queuing discipline

2013-08-31 00:32:32 -04:00

timestamping.c

…

user_dma.c

…

utils.c

…