======================================================
WARNING: possible circular locking dependency detected
6.9.0-rc7-syzkaller-gfda5695d692c #0 Not tainted
------------------------------------------------------
kworker/u8:5/580 is trying to acquire lock:
ffff0000dff08d20 (team->team_lock_key#2){+.+.}-{3:3}, at: team_del_slave+0x38/0x1a4 drivers/net/team/team.c:1988

but task is already holding lock:
ffff0000c7168768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5953 [inline]
ffff0000c7168768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: ieee80211_remove_interfaces+0x12c/0x5dc net/mac80211/iface.c:2277

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&rdev->wiphy.mtx){+.+.}-{3:3}:
       __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:608
       __mutex_lock kernel/locking/mutex.c:752 [inline]
       mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804
       wiphy_lock include/net/cfg80211.h:5953 [inline]
       ieee80211_open+0xe4/0x1e4 net/mac80211/iface.c:449
       __dev_open+0x32c/0x500 net/core/dev.c:1430
       dev_open+0xa8/0x248 net/core/dev.c:1466
       team_port_add drivers/net/team/team.c:1214 [inline]
       team_add_slave+0x7b0/0x236c drivers/net/team/team.c:1974
       do_set_master net/core/rtnetlink.c:2685 [inline]
       do_setlink+0xc30/0x377c net/core/rtnetlink.c:2891
       __rtnl_newlink net/core/rtnetlink.c:3680 [inline]
       rtnl_newlink+0x14c0/0x1bcc net/core/rtnetlink.c:3727
       rtnetlink_rcv_msg+0x724/0xdbc net/core/rtnetlink.c:6595
       netlink_rcv_skb+0x214/0x3c4 net/netlink/af_netlink.c:2559
       rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6613
       netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
       netlink_unicast+0x65c/0x898 net/netlink/af_netlink.c:1361
       netlink_sendmsg+0x7a0/0xa84 net/netlink/af_netlink.c:1905
       sock_sendmsg_nosec net/socket.c:730 [inline]
       __sock_sendmsg net/socket.c:745 [inline]
       ____sys_sendmsg+0x56c/0x840 net/socket.c:2584
       ___sys_sendmsg net/socket.c:2638 [inline]
       __sys_sendmsg+0x26c/0x33c net/socket.c:2667
       __do_sys_sendmsg net/socket.c:2676 [inline]
       __se_sys_sendmsg net/socket.c:2674 [inline]
       __arm64_sys_sendmsg+0x80/0x94 net/socket.c:2674
       __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
       el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
       do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
       el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
       el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
       el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598

-> #0 (team->team_lock_key#2){+.+.}-{3:3}:
       check_prev_add kernel/locking/lockdep.c:3134 [inline]
       check_prevs_add kernel/locking/lockdep.c:3253 [inline]
       validate_chain kernel/locking/lockdep.c:3869 [inline]
       __lock_acquire+0x3384/0x763c kernel/locking/lockdep.c:5137
       lock_acquire+0x248/0x73c kernel/locking/lockdep.c:5754
       __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:608
       __mutex_lock kernel/locking/mutex.c:752 [inline]
       mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804
       team_del_slave+0x38/0x1a4 drivers/net/team/team.c:1988
       team_device_event+0x25c/0x4d4 drivers/net/team/team.c:3029
       notifier_call_chain+0x1bc/0x540 kernel/notifier.c:93
       raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:461
       call_netdevice_notifiers_info net/core/dev.c:1950 [inline]
       call_netdevice_notifiers_extack net/core/dev.c:1988 [inline]
       call_netdevice_notifiers net/core/dev.c:2002 [inline]
       unregister_netdevice_many_notify+0xd24/0x1770 net/core/dev.c:11105
       unregister_netdevice_many net/core/dev.c:11163 [inline]
       unregister_netdevice_queue+0x2d8/0x324 net/core/dev.c:11042
       unregister_netdevice include/linux/netdevice.h:3115 [inline]
       _cfg80211_unregister_wdev+0x164/0x6c4 net/wireless/core.c:1206
       cfg80211_unregister_wdev+0x24/0x34 net/wireless/core.c:1261
       ieee80211_remove_interfaces+0x418/0x5dc net/mac80211/iface.c:2302
       ieee80211_unregister_hw+0x60/0x29c net/mac80211/main.c:1652
       mac80211_hwsim_del_radio+0x21c/0x3e0 drivers/net/wireless/virtual/mac80211_hwsim.c:5560
       hwsim_exit_net+0x51c/0x5e4 drivers/net/wireless/virtual/mac80211_hwsim.c:6437
       ops_exit_list net/core/net_namespace.c:170 [inline]
       cleanup_net+0x640/0x9b4 net/core/net_namespace.c:637
       process_one_work+0x7b8/0x15d4 kernel/workqueue.c:3267
       process_scheduled_works kernel/workqueue.c:3348 [inline]
       worker_thread+0x938/0xef4 kernel/workqueue.c:3429
       kthread+0x288/0x310 kernel/kthread.c:388
       ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&rdev->wiphy.mtx);
                               lock(team->team_lock_key#2);
                               lock(&rdev->wiphy.mtx);
  lock(team->team_lock_key#2);

 *** DEADLOCK ***

5 locks held by kworker/u8:5/580:
 #0: ffff0000c1871948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x668/0x15d4 kernel/workqueue.c:3241
 #1: ffff800098c07c20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x6b4/0x15d4 kernel/workqueue.c:3241
 #2: ffff800091bf6fd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x13c/0x9b4 net/core/net_namespace.c:591
 #3: ffff800091c030e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:79
 #4: ffff0000c7168768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5953 [inline]
 #4: ffff0000c7168768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: ieee80211_remove_interfaces+0x12c/0x5dc net/mac80211/iface.c:2277

stack backtrace:
CPU: 0 PID: 580 Comm: kworker/u8:5 Not tainted 6.9.0-rc7-syzkaller-gfda5695d692c #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: netns cleanup_net
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:317
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:324
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:114
 dump_stack+0x1c/0x28 lib/dump_stack.c:123
 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2060
 check_noncircular+0x310/0x404 kernel/locking/lockdep.c:2187
 check_prev_add kernel/locking/lockdep.c:3134 [inline]
 check_prevs_add kernel/locking/lockdep.c:3253 [inline]
 validate_chain kernel/locking/lockdep.c:3869 [inline]
 __lock_acquire+0x3384/0x763c kernel/locking/lockdep.c:5137
 lock_acquire+0x248/0x73c kernel/locking/lockdep.c:5754
 __mutex_lock_common+0x190/0x21a0 kernel/locking/mutex.c:608
 __mutex_lock kernel/locking/mutex.c:752 [inline]
 mutex_lock_nested+0x2c/0x38 kernel/locking/mutex.c:804
 team_del_slave+0x38/0x1a4 drivers/net/team/team.c:1988
 team_device_event+0x25c/0x4d4 drivers/net/team/team.c:3029
 notifier_call_chain+0x1bc/0x540 kernel/notifier.c:93
 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:461
 call_netdevice_notifiers_info net/core/dev.c:1950 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:1988 [inline]
 call_netdevice_notifiers net/core/dev.c:2002 [inline]
 unregister_netdevice_many_notify+0xd24/0x1770 net/core/dev.c:11105
 unregister_netdevice_many net/core/dev.c:11163 [inline]
 unregister_netdevice_queue+0x2d8/0x324 net/core/dev.c:11042
 unregister_netdevice include/linux/netdevice.h:3115 [inline]
 _cfg80211_unregister_wdev+0x164/0x6c4 net/wireless/core.c:1206
 cfg80211_unregister_wdev+0x24/0x34 net/wireless/core.c:1261
 ieee80211_remove_interfaces+0x418/0x5dc net/mac80211/iface.c:2302
 ieee80211_unregister_hw+0x60/0x29c net/mac80211/main.c:1652
 mac80211_hwsim_del_radio+0x21c/0x3e0 drivers/net/wireless/virtual/mac80211_hwsim.c:5560
 hwsim_exit_net+0x51c/0x5e4 drivers/net/wireless/virtual/mac80211_hwsim.c:6437
 ops_exit_list net/core/net_namespace.c:170 [inline]
 cleanup_net+0x640/0x9b4 net/core/net_namespace.c:637
 process_one_work+0x7b8/0x15d4 kernel/workqueue.c:3267
 process_scheduled_works kernel/workqueue.c:3348 [inline]
 worker_thread+0x938/0xef4 kernel/workqueue.c:3429
 kthread+0x288/0x310 kernel/kthread.c:388
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860
team0: Port device wlan1 removed
team0: Port device wlan1 removed
team0: Port device wlan1 removed
hsr_slave_0: left promiscuous mode
hsr_slave_1: left promiscuous mode
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
hsr_slave_0: left promiscuous mode
hsr_slave_1: left promiscuous mode
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
hsr_slave_0: left promiscuous mode
hsr_slave_1: left promiscuous mode
batman_adv: batadv0: Interface deactivated: batadv_slave_0
batman_adv: batadv0: Removing interface: batadv_slave_0
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
veth1_macvtap: left promiscuous mode
veth0_macvtap: left promiscuous mode
veth1_vlan: left promiscuous mode
veth0_vlan: left promiscuous mode
veth1_macvtap: left promiscuous mode
veth0_macvtap: left promiscuous mode
veth1_vlan: left promiscuous mode
veth0_vlan: left promiscuous mode
veth1_macvtap: left promiscuous mode
veth0_macvtap: left promiscuous mode
veth1_vlan: left promiscuous mode
veth0_vlan: left promiscuous mode
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed