linux/net/batman-adv
Sven Eckelmann 130bd50d00 batman-adv: Don't schedule OGM for disabled interface
commit 8e8ce08198 upstream.

A transmission scheduling for an interface which is currently dropped by
batadv_iv_ogm_iface_disable could still be in progress. The B.A.T.M.A.N. V
is simply cancelling the workqueue item in an synchronous way but this is
not possible with B.A.T.M.A.N. IV because the OGM submissions are
intertwined.

Instead it has to stop submitting the OGM when it detect that the buffer
pointer is set to NULL.

Reported-by: syzbot+a98f2016f40b9cd3818a@syzkaller.appspotmail.com
Reported-by: syzbot+ac36b6a33c28a491e929@syzkaller.appspotmail.com
Fixes: c6c8fea297 ("net: Add batman-adv meshing protocol")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Cc: Hillf Danton <hdanton@sina.com>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18 07:17:54 +01:00
..
Kconfig net: Fix Kconfig indentation 2019-09-26 08:56:17 +02:00
Makefile
bat_algo.c
bat_algo.h
bat_iv_ogm.c batman-adv: Don't schedule OGM for disabled interface 2020-03-18 07:17:54 +01:00
bat_iv_ogm.h
bat_v.c batman-adv: BATMAN_V: introduce per hard-iface OGMv2 queues 2019-08-04 22:22:00 +02:00
bat_v.h
bat_v_elp.c
bat_v_elp.h
bat_v_ogm.c batman-adv: Avoid free/alloc race when handling OGM2 buffer 2019-10-13 20:36:39 +02:00
bat_v_ogm.h batman-adv: BATMAN_V: introduce per hard-iface OGMv2 queues 2019-08-04 22:22:00 +02:00
bitarray.c
bitarray.h
bridge_loop_avoidance.c
bridge_loop_avoidance.h
debugfs.c
debugfs.h
distributed-arp-table.c batman-adv: Fix DAT candidate selection on little endian systems 2020-01-23 08:22:49 +01:00
distributed-arp-table.h
fragmentation.c
fragmentation.h
gateway_client.c
gateway_client.h
gateway_common.c
gateway_common.h
hard-interface.c batman-adv: Avoid free/alloc race when handling OGM buffer 2019-10-13 21:00:07 +02:00
hard-interface.h
hash.c
hash.h
icmp_socket.c
icmp_socket.h
log.c
log.h
main.c
main.h
multicast.c
multicast.h
netlink.c batman-adv: fix uninit-value in batadv_netlink_get_ifindex() 2019-08-14 19:27:07 +02:00
netlink.h
network-coding.c
network-coding.h
originator.c
originator.h
routing.c
routing.h
send.c
send.h
soft-interface.c net: core: add generic lockdep keys 2019-10-24 14:53:48 -07:00
soft-interface.h
sysfs.c
sysfs.h
tp_meter.c
tp_meter.h
trace.c
trace.h
translation-table.c
translation-table.h
tvlv.c
tvlv.h
types.h batman-adv: Avoid free/alloc race when handling OGM buffer 2019-10-13 21:00:07 +02:00