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ef72706a05
linux/net/batman-adv
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Marek Lindner ef72706a05 batman-adv: protect tt_local_entry from concurrent delete events 
The tt_local_entry deletion performed in batadv_tt_local_remove() was neither
protecting against simultaneous deletes nor checking whether the element was
still part of the list before calling hlist_del_rcu().

Replacing the hlist_del_rcu() call with batadv_hash_remove() provides adequate
protection via hash spinlocks as well as an is-element-still-in-hash check to
avoid 'blind' hash removal.

Fixes: 068ee6e204 ("batman-adv: roaming handling mechanism redesign")
Reported-by: alfonsname@web.de
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
2015-08-05 00:31:47 +02:00
..
bat_algo.h batman-adv: update copyright years for 2015 2015-05-29 10:13:35 +02:00
bat_iv_ogm.c batman-adv: Clarify calculation precedence for '&' and '?' 2015-06-07 17:07:19 +02:00
bitarray.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
bitarray.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
bridge_loop_avoidance.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
bridge_loop_avoidance.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
debugfs.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
debugfs.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
distributed-arp-table.c batman-adv: avoid DAT to mess up LAN state 2015-08-05 00:31:46 +02:00
distributed-arp-table.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
fragmentation.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
fragmentation.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
gateway_client.c batman-adv: Remove unused post-VLAN ethhdr in batadv_gw_dhcp_recipient_get 2015-06-07 17:07:20 +02:00
gateway_client.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
gateway_common.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
gateway_common.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
hard-interface.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
hard-interface.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
hash.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
hash.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
icmp_socket.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
icmp_socket.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
Kconfig batman-adv: Kconfig, Add missing DEBUG_FS dependency 2015-01-07 22:17:11 +01:00
main.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
main.h batman-adv: Clarify calculation precedence for '&' and '?' 2015-06-07 17:07:19 +02:00
Makefile batman-adv: Makefile, Sort alphabetically 2015-05-29 10:13:36 +02:00
multicast.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
multicast.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
network-coding.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
network-coding.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
originator.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
originator.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
packet.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
routing.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
routing.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
send.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
send.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
soft-interface.c batman-adv: fix kernel crash due to missing NULL checks 2015-08-05 00:31:46 +02:00
soft-interface.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
sysfs.c batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
sysfs.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
translation-table.c batman-adv: protect tt_local_entry from concurrent delete events 2015-08-05 00:31:47 +02:00
translation-table.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00
types.h batman-adv: Add required includes to all files 2015-06-07 17:07:19 +02:00