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alistair23-linux/net/batman-adv
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Sven Eckelmann dff9bc42ab batman-adv: Prevent duplicated gateway_node entry 
The function batadv_gw_node_add is responsible for adding new gw_node to
the gateway_list. It is expecting that the caller already checked that
there is not already an entry with the same key or not.

But the lock for the list is only held when the list is really modified.
This could lead to duplicated entries because another context could create
an entry with the same key between the check and the list manipulation.

The check and the manipulation of the list must therefore be in the same
locked code section.

Fixes: c6c8fea297 ("net: Add batman-adv meshing protocol")
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Acked-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
2018-09-06 13:55:20 +02:00
..
bat_algo.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bat_algo.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bat_iv_ogm.c batman-adv: Fix bat_ogm_iv best gw refcnt after netlink dump 2018-06-23 10:29:33 +02:00
bat_iv_ogm.h batman-adv: Unify include guards style 2018-07-07 22:02:17 +02:00
bat_v.c batman-adv: Fix bat_v best gw refcnt after netlink dump 2018-06-23 10:29:33 +02:00
bat_v.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bat_v_elp.c batman-adv: Avoid probe ELP information leak 2018-09-06 13:54:47 +02:00
bat_v_elp.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bat_v_ogm.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bat_v_ogm.h batman-adv: Unify include guards style 2018-07-07 22:02:17 +02:00
bitarray.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bitarray.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
bridge_loop_avoidance.c net: drivers/net: Convert random_ether_addr to eth_random_addr 2018-06-23 10:49:14 +09:00
bridge_loop_avoidance.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
debugfs.c Merge ra.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux 2018-07-20 21:17:12 -07:00
debugfs.h batman-adv: Fix debugfs path for renamed softif 2018-06-23 10:29:33 +02:00
distributed-arp-table.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
distributed-arp-table.h batman-adv: add DAT cache netlink support 2018-03-14 10:15:08 +01:00
fragmentation.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-06 01:20:46 -05:00
fragmentation.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
gateway_client.c batman-adv: Prevent duplicated gateway_node entry 2018-09-06 13:55:20 +02:00
gateway_client.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
gateway_common.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
gateway_common.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
hard-interface.c batman-adv: Fix debugfs path for renamed softif 2018-06-23 10:29:33 +02:00
hard-interface.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
hash.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
hash.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
icmp_socket.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
icmp_socket.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
Kconfig batman-adv: Remove "default n" in Kconfig 2018-06-23 10:30:06 +02:00
log.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
log.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
main.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
main.h batman-adv: Start new development cycle 2018-04-22 09:29:14 +02:00
Makefile batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
multicast.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-05-26 19:46:15 -04:00
multicast.h batman-adv: add multicast flags netlink support 2018-03-14 10:15:34 +01:00
netlink.c batman-adv: add multicast flags netlink support 2018-03-14 10:15:34 +01:00
netlink.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
network-coding.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
network-coding.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
originator.c batman-adv: Join batadv_purge_orig_ref and _batadv_purge_orig 2018-07-07 22:02:17 +02:00
originator.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-06 01:20:46 -05:00
routing.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-23 11:31:58 -04:00
routing.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
send.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
send.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
soft-interface.c batman-adv: fix batadv_interface_tx()'s return type 2018-04-25 19:33:36 +02:00
soft-interface.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
sysfs.c batman-adv: Fix segfault when writing to sysfs elp_interval 2018-09-06 13:54:48 +02:00
sysfs.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
tp_meter.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
tp_meter.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
translation-table.c batman-adv: Fix multicast TT issues with bogus ROAM flags 2018-06-23 10:29:33 +02:00
translation-table.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
tvlv.c batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
tvlv.h batman-adv: Update copyright years for 2018 2018-02-26 17:57:39 +01:00
types.h batman-adv: Convert batadv_dat_addr_t to proper type 2018-07-08 12:56:38 +02:00