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linux/net/batman-adv
History
Sven Eckelmann 10a7796576 batman-adv: Fix double-hold of meshif when getting enabled 
It was originally meant to replace the dev_hold with netdev_hold. But this
was missed in batadv_hardif_enable_interface(). As result, there was an
imbalance and a hang when trying to remove the mesh-interface with
(previously) active hard-interfaces:

  unregister_netdevice: waiting for batadv0 to become free. Usage count = 3

Fixes: 00b3553081 ("batman-adv: adopt netdev_hold() / netdev_put()")
Suggested-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot+ff3aa851d46ab82953a3@syzkaller.appspotmail.com
Reported-by: syzbot+4036165fc595a74b09b2@syzkaller.appspotmail.com
Reported-by: syzbot+c35d73ce910d86c0026e@syzkaller.appspotmail.com
Reported-by: syzbot+48c14f61594bdfadb086@syzkaller.appspotmail.com
Reported-by: syzbot+f37372d86207b3bb2941@syzkaller.appspotmail.com
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250414-double_hold_fix-v5-1-10e056324cde@narfation.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
History 2025-04-15 17:56:47 -07:00
..
bat_algo.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
bat_algo.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bat_iv_ogm.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-03-20 21:38:01 +01:00
bat_iv_ogm.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bat_v.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
bat_v.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bat_v_elp.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
bat_v_elp.h batman-adv: Drop unmanaged ELP metric worker 2025-01-22 21:46:42 +01:00
bat_v_ogm.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-03-20 21:38:01 +01:00
bat_v_ogm.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bitarray.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
bitarray.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
bridge_loop_avoidance.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
bridge_loop_avoidance.h batman-adv: Remove the repeated declaration 2021-05-30 13:38:27 +02:00
distributed-arp-table.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
distributed-arp-table.h batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
fragmentation.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
fragmentation.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
gateway_client.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
gateway_client.h batman-adv: Check ptr for NULL before reducing its refcnt 2021-08-08 20:21:40 +02:00
gateway_common.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
gateway_common.h batman-adv: Drop per algo GW section class code 2023-08-14 18:01:21 +02:00
hard-interface.c batman-adv: Fix double-hold of meshif when getting enabled 2025-04-15 17:56:47 -07:00
hard-interface.h batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
hash.c batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
hash.h batman-adv: Fix spelling mistakes 2021-06-02 08:46:03 +02:00
Kconfig lib/crc: remove CONFIG_LIBCRC32C 2025-04-04 11:31:42 -07:00
log.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
log.h batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
main.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
main.h batman-adv: Switch to bitmap helper for aggregation handling 2025-02-22 11:36:25 +01:00
Makefile batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
mesh-interface.c This feature/cleanup patchset includes the following patches: 2025-03-18 12:10:20 +01:00
mesh-interface.h batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
multicast.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
multicast.h batman-adv: mcast: implement multicast packet generation 2023-11-14 08:16:34 +01:00
multicast_forw.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
netlink.c batman-adv: add missing newlines for log macros 2025-02-23 11:18:36 +01:00
netlink.h batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
network-coding.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
network-coding.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
originator.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
originator.h batman-adv: mcast: implement multicast packet reception and forwarding 2023-11-14 08:16:34 +01:00
routing.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
routing.h batman-adv: mcast: implement multicast packet reception and forwarding 2023-11-14 08:16:34 +01:00
send.c batman-adv: Use actual packet count for aggregated packets 2025-02-22 11:36:25 +01:00
send.h batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
tp_meter.c treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
tp_meter.h batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
trace.c batman-adv: Drop publication years from copyright info 2021-02-06 09:22:10 +01:00
trace.h batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
translation-table.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
translation-table.h batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
tvlv.c batman-adv: Use consistent name for mesh interface 2025-02-22 11:36:22 +01:00
tvlv.h batman-adv: tvlv: prepare for tvlv enabled multicast packet type 2023-01-21 19:01:59 +01:00
types.h batman-adv: Switch to bitmap helper for aggregation handling 2025-02-22 11:36:25 +01:00