Sven Eckelmann 8562759c8f batman-adv: Avoid free/alloc race when handling OGM2 buffer ... commit a8d23cbbf6 upstream. A B.A.T.M.A.N. V virtual interface has an OGM2 packet buffer which is initialized using data from the netdevice notifier and other rtnetlink related hooks. It is sent regularly via various slave interfaces of the batadv virtual interface and in this process also modified (realloced) to integrate additional state information via TVLV containers. It must be avoided that the worker item is executed without a common lock with the netdevice notifier/rtnetlink helpers. Otherwise it can either happen that half modified data is sent out or the functions modifying the OGM2 buffer try to access already freed memory regions. Fixes: 0da0035942 ("batman-adv: OGMv2 - add basic infrastructure") Signed-off-by: Sven Eckelmann <sven@narfation.org> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-03-18 07:14:25 +01:00
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bat_algo.c
bat_algo.h
bat_iv_ogm.c	batman-adv: Don't schedule OGM for disabled interface	2020-03-18 07:14:22 +01:00
bat_iv_ogm.h
bat_v.c
bat_v.h
bat_v_elp.c	batman-adv: fix warning in function batadv_v_elp_get_throughput	2019-05-08 07:21:46 +02:00
bat_v_elp.h
bat_v_ogm.c	batman-adv: Avoid free/alloc race when handling OGM2 buffer	2020-03-18 07:14:25 +01:00
bat_v_ogm.h
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 08:21:34 +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	2019-11-06 13:06:22 +01:00
hard-interface.h
hash.c
hash.h
icmp_socket.c
icmp_socket.h
Kconfig
log.c
log.h
main.c	batman-adv: mcast: fix multicast tt/tvlv worker locking	2019-05-31 06:46:05 -07:00
main.h
Makefile
multicast.c	batman-adv: mcast: fix multicast tt/tvlv worker locking	2019-05-31 06:46:05 -07:00
multicast.h
netlink.c	batman-adv: fix uninit-value in batadv_netlink_get_ifindex()	2019-09-16 08:21:41 +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
soft-interface.h
sysfs.c
sysfs.h
tp_meter.c
tp_meter.h
translation-table.c	batman-adv: fix for leaked TVLV handler.	2019-07-26 09:13:59 +02:00
translation-table.h
tvlv.c
tvlv.h
types.h	batman-adv: Avoid free/alloc race when handling OGM2 buffer	2020-03-18 07:14:25 +01:00