Extracting prog: 4m1.617519587s
Minimizing prog: 36m52.107802781s
Simplifying prog options: 13m27.248922151s
Extracting C: 5m27.770234607s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f00000000c0)="2e00000010008188e6b62aa73772cc9f1ba1f848480000005e140602000000000e000a0010000000028000031294", 0x2e}], 0x1}, 0x0)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f00000000c0)="2e00000010008188e6b62aa73772cc9f1ba1f848480000005e140602000000000e000a0010000000028000031294", 0x2e}], 0x1}, 0x0)

program crashed: possible deadlock in team_del_slave
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm
detailed listing:
executing program 0:
socket$kcm(0x10, 0x2, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sendmsg$kcm
detailed listing:
executing program 0:
sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f00000000c0)="2e00000010008188e6b62aa73772cc9f1ba1f848480000005e140602000000000e000a0010000000028000031294", 0x2e}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r0, &(0x7f0000000600)={0x0, 0x0, 0x0}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000040)=[{0x0}], 0x1}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f00000000c0)}], 0x1}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
simplifying guilty program options
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f00000000c0)="2e00000010008188e6b62aa73772cc9f1ba1f848480000005e140602000000000e000a0010000000028000031294", 0x2e}], 0x1}, 0x0)

program crashed: possible deadlock in team_del_slave
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
detailed listing:
executing program 0:
r0 = socket$kcm(0x10, 0x2, 0x0)
sendmsg$kcm(r0, &(0x7f0000000600)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f00000000c0)="2e00000010008188e6b62aa73772cc9f1ba1f848480000005e140602000000000e000a0010000000028000031294", 0x2e}], 0x1}, 0x0)

program crashed: possible deadlock in team_del_slave
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$kcm-sendmsg$kcm
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
reproducing took 59m31.127458962s
repro crashed as (corrupted=false):
bond0 (unregistering): Released all slaves
======================================================
WARNING: possible circular locking dependency detected
6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #0 Not tainted
------------------------------------------------------
kworker/u4:11/4082 is trying to acquire lock:
ffff888043a18e00 (team->team_lock_key){+.+.}-{4:4}, at: team_del_slave+0x32/0x1d0 drivers/net/team/team_core.c:2003

but task is already holding lock:
ffff888048530768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6092 [inline]
ffff888048530768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0x12b/0x700 net/mac80211/iface.c:2294

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&rdev->wiphy.mtx){+.+.}-{4:4}:
       lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
       __mutex_lock_common kernel/locking/mutex.c:601 [inline]
       __mutex_lock+0x1a5/0x10c0 kernel/locking/mutex.c:746
       class_wiphy_constructor include/net/cfg80211.h:6092 [inline]
       ieee80211_open+0xe9/0x1e0 net/mac80211/iface.c:445
       __dev_open+0x484/0x900 net/core/dev.c:1629
       netif_open+0xaf/0x1b0 net/core/dev.c:1652
       dev_open+0x13e/0x260 net/core/dev_api.c:200
       team_port_add drivers/net/team/team_core.c:1230 [inline]
       team_add_slave+0xac0/0x28b0 drivers/net/team/team_core.c:1989
       do_set_master+0x579/0x730 net/core/rtnetlink.c:2946
       do_setlink+0xf76/0x4390 net/core/rtnetlink.c:3159
       rtnl_changelink net/core/rtnetlink.c:3769 [inline]
       __rtnl_newlink net/core/rtnetlink.c:3928 [inline]
       rtnl_newlink+0x17e2/0x1fe0 net/core/rtnetlink.c:4065
       rtnetlink_rcv_msg+0x80f/0xd70 net/core/rtnetlink.c:6955
       netlink_rcv_skb+0x208/0x480 net/netlink/af_netlink.c:2534
       netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
       netlink_unicast+0x7f8/0x9a0 net/netlink/af_netlink.c:1339
       netlink_sendmsg+0x8c3/0xcd0 net/netlink/af_netlink.c:1883
       sock_sendmsg_nosec net/socket.c:712 [inline]
       __sock_sendmsg+0x221/0x270 net/socket.c:727
       ____sys_sendmsg+0x523/0x860 net/socket.c:2566
       ___sys_sendmsg net/socket.c:2620 [inline]
       __sys_sendmsg+0x271/0x360 net/socket.c:2652
       do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
       do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (team->team_lock_key){+.+.}-{4:4}:
       check_prev_add kernel/locking/lockdep.c:3166 [inline]
       check_prevs_add kernel/locking/lockdep.c:3285 [inline]
       validate_chain+0xa69/0x24e0 kernel/locking/lockdep.c:3909
       __lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235
       lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
       __mutex_lock_common kernel/locking/mutex.c:601 [inline]
       __mutex_lock+0x1a5/0x10c0 kernel/locking/mutex.c:746
       team_del_slave+0x32/0x1d0 drivers/net/team/team_core.c:2003
       team_device_event+0x200/0x5b0 drivers/net/team/team_core.c:3000
       notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
       call_netdevice_notifiers_extack net/core/dev.c:2214 [inline]
       call_netdevice_notifiers net/core/dev.c:2228 [inline]
       unregister_netdevice_many_notify+0x16b7/0x2640 net/core/dev.c:11982
       unregister_netdevice_many net/core/dev.c:12046 [inline]
       unregister_netdevice_queue+0x383/0x400 net/core/dev.c:11889
       unregister_netdevice include/linux/netdevice.h:3374 [inline]
       _cfg80211_unregister_wdev+0x163/0x590 net/wireless/core.c:1256
       ieee80211_remove_interfaces+0x4f1/0x700 net/mac80211/iface.c:2319
       ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1681
       mac80211_hwsim_del_radio+0x2c6/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5665
       hwsim_exit_net+0x5c3/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6545
       ops_exit_list net/core/net_namespace.c:172 [inline]
       cleanup_net+0x814/0xd60 net/core/net_namespace.c:654
       process_one_work kernel/workqueue.c:3238 [inline]
       process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
       worker_thread+0x870/0xd50 kernel/workqueue.c:3400
       kthread+0x7b7/0x940 kernel/kthread.c:464
       ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

other info that might help us debug this:

 Possible unsafe locking scenario:

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

 *** DEADLOCK ***

5 locks held by kworker/u4:11/4082:
 #0: ffff88801c29b948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
 #0: ffff88801c29b948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
 #1: ffffc9000f347c60 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
 #1: ffffc9000f347c60 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
 #2: ffffffff900f0a90 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x17c/0xd60 net/core/net_namespace.c:608
 #3: ffffffff900fd5c8 (rtnl_mutex){+.+.}-{4:4}, at: ieee80211_unregister_hw+0x55/0x2c0 net/mac80211/main.c:1674
 #4: ffff888048530768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6092 [inline]
 #4: ffff888048530768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0x12b/0x700 net/mac80211/iface.c:2294

stack backtrace:
CPU: 0 UID: 0 PID: 4082 Comm: kworker/u4:11 Not tainted 6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2079
 check_noncircular+0x142/0x160 kernel/locking/lockdep.c:2211
 check_prev_add kernel/locking/lockdep.c:3166 [inline]
 check_prevs_add kernel/locking/lockdep.c:3285 [inline]
 validate_chain+0xa69/0x24e0 kernel/locking/lockdep.c:3909
 __lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235
 lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
 __mutex_lock_common kernel/locking/mutex.c:601 [inline]
 __mutex_lock+0x1a5/0x10c0 kernel/locking/mutex.c:746
 team_del_slave+0x32/0x1d0 drivers/net/team/team_core.c:2003
 team_device_event+0x200/0x5b0 drivers/net/team/team_core.c:3000
 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2214 [inline]
 call_netdevice_notifiers net/core/dev.c:2228 [inline]
 unregister_netdevice_many_notify+0x16b7/0x2640 net/core/dev.c:11982
 unregister_netdevice_many net/core/dev.c:12046 [inline]
 unregister_netdevice_queue+0x383/0x400 net/core/dev.c:11889
 unregister_netdevice include/linux/netdevice.h:3374 [inline]
 _cfg80211_unregister_wdev+0x163/0x590 net/wireless/core.c:1256
 ieee80211_remove_interfaces+0x4f1/0x700 net/mac80211/iface.c:2319
 ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1681
 mac80211_hwsim_del_radio+0x2c6/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5665
 hwsim_exit_net+0x5c3/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6545
 ops_exit_list net/core/net_namespace.c:172 [inline]
 cleanup_net+0x814/0xd60 net/core/net_namespace.c:654
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
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
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
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50

final repro crashed as (corrupted=false):
bond0 (unregistering): Released all slaves
======================================================
WARNING: possible circular locking dependency detected
6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #0 Not tainted
------------------------------------------------------
kworker/u4:11/4082 is trying to acquire lock:
ffff888043a18e00 (team->team_lock_key){+.+.}-{4:4}, at: team_del_slave+0x32/0x1d0 drivers/net/team/team_core.c:2003

but task is already holding lock:
ffff888048530768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6092 [inline]
ffff888048530768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0x12b/0x700 net/mac80211/iface.c:2294

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #1 (&rdev->wiphy.mtx){+.+.}-{4:4}:
       lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
       __mutex_lock_common kernel/locking/mutex.c:601 [inline]
       __mutex_lock+0x1a5/0x10c0 kernel/locking/mutex.c:746
       class_wiphy_constructor include/net/cfg80211.h:6092 [inline]
       ieee80211_open+0xe9/0x1e0 net/mac80211/iface.c:445
       __dev_open+0x484/0x900 net/core/dev.c:1629
       netif_open+0xaf/0x1b0 net/core/dev.c:1652
       dev_open+0x13e/0x260 net/core/dev_api.c:200
       team_port_add drivers/net/team/team_core.c:1230 [inline]
       team_add_slave+0xac0/0x28b0 drivers/net/team/team_core.c:1989
       do_set_master+0x579/0x730 net/core/rtnetlink.c:2946
       do_setlink+0xf76/0x4390 net/core/rtnetlink.c:3159
       rtnl_changelink net/core/rtnetlink.c:3769 [inline]
       __rtnl_newlink net/core/rtnetlink.c:3928 [inline]
       rtnl_newlink+0x17e2/0x1fe0 net/core/rtnetlink.c:4065
       rtnetlink_rcv_msg+0x80f/0xd70 net/core/rtnetlink.c:6955
       netlink_rcv_skb+0x208/0x480 net/netlink/af_netlink.c:2534
       netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
       netlink_unicast+0x7f8/0x9a0 net/netlink/af_netlink.c:1339
       netlink_sendmsg+0x8c3/0xcd0 net/netlink/af_netlink.c:1883
       sock_sendmsg_nosec net/socket.c:712 [inline]
       __sock_sendmsg+0x221/0x270 net/socket.c:727
       ____sys_sendmsg+0x523/0x860 net/socket.c:2566
       ___sys_sendmsg net/socket.c:2620 [inline]
       __sys_sendmsg+0x271/0x360 net/socket.c:2652
       do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
       do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (team->team_lock_key){+.+.}-{4:4}:
       check_prev_add kernel/locking/lockdep.c:3166 [inline]
       check_prevs_add kernel/locking/lockdep.c:3285 [inline]
       validate_chain+0xa69/0x24e0 kernel/locking/lockdep.c:3909
       __lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235
       lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
       __mutex_lock_common kernel/locking/mutex.c:601 [inline]
       __mutex_lock+0x1a5/0x10c0 kernel/locking/mutex.c:746
       team_del_slave+0x32/0x1d0 drivers/net/team/team_core.c:2003
       team_device_event+0x200/0x5b0 drivers/net/team/team_core.c:3000
       notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
       call_netdevice_notifiers_extack net/core/dev.c:2214 [inline]
       call_netdevice_notifiers net/core/dev.c:2228 [inline]
       unregister_netdevice_many_notify+0x16b7/0x2640 net/core/dev.c:11982
       unregister_netdevice_many net/core/dev.c:12046 [inline]
       unregister_netdevice_queue+0x383/0x400 net/core/dev.c:11889
       unregister_netdevice include/linux/netdevice.h:3374 [inline]
       _cfg80211_unregister_wdev+0x163/0x590 net/wireless/core.c:1256
       ieee80211_remove_interfaces+0x4f1/0x700 net/mac80211/iface.c:2319
       ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1681
       mac80211_hwsim_del_radio+0x2c6/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5665
       hwsim_exit_net+0x5c3/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6545
       ops_exit_list net/core/net_namespace.c:172 [inline]
       cleanup_net+0x814/0xd60 net/core/net_namespace.c:654
       process_one_work kernel/workqueue.c:3238 [inline]
       process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
       worker_thread+0x870/0xd50 kernel/workqueue.c:3400
       kthread+0x7b7/0x940 kernel/kthread.c:464
       ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
       ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

other info that might help us debug this:

 Possible unsafe locking scenario:

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

 *** DEADLOCK ***

5 locks held by kworker/u4:11/4082:
 #0: ffff88801c29b948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3213 [inline]
 #0: ffff88801c29b948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x990/0x18e0 kernel/workqueue.c:3319
 #1: ffffc9000f347c60 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3214 [inline]
 #1: ffffc9000f347c60 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x9cb/0x18e0 kernel/workqueue.c:3319
 #2: ffffffff900f0a90 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x17c/0xd60 net/core/net_namespace.c:608
 #3: ffffffff900fd5c8 (rtnl_mutex){+.+.}-{4:4}, at: ieee80211_unregister_hw+0x55/0x2c0 net/mac80211/main.c:1674
 #4: ffff888048530768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: class_wiphy_constructor include/net/cfg80211.h:6092 [inline]
 #4: ffff888048530768 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: ieee80211_remove_interfaces+0x12b/0x700 net/mac80211/iface.c:2294

stack backtrace:
CPU: 0 UID: 0 PID: 4082 Comm: kworker/u4:11 Not tainted 6.15.0-rc3-syzkaller-00008-ga33b5a08cbbd #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: netns cleanup_net
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 print_circular_bug+0x2e1/0x300 kernel/locking/lockdep.c:2079
 check_noncircular+0x142/0x160 kernel/locking/lockdep.c:2211
 check_prev_add kernel/locking/lockdep.c:3166 [inline]
 check_prevs_add kernel/locking/lockdep.c:3285 [inline]
 validate_chain+0xa69/0x24e0 kernel/locking/lockdep.c:3909
 __lock_acquire+0xad5/0xd80 kernel/locking/lockdep.c:5235
 lock_acquire+0x116/0x2f0 kernel/locking/lockdep.c:5866
 __mutex_lock_common kernel/locking/mutex.c:601 [inline]
 __mutex_lock+0x1a5/0x10c0 kernel/locking/mutex.c:746
 team_del_slave+0x32/0x1d0 drivers/net/team/team_core.c:2003
 team_device_event+0x200/0x5b0 drivers/net/team/team_core.c:3000
 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2214 [inline]
 call_netdevice_notifiers net/core/dev.c:2228 [inline]
 unregister_netdevice_many_notify+0x16b7/0x2640 net/core/dev.c:11982
 unregister_netdevice_many net/core/dev.c:12046 [inline]
 unregister_netdevice_queue+0x383/0x400 net/core/dev.c:11889
 unregister_netdevice include/linux/netdevice.h:3374 [inline]
 _cfg80211_unregister_wdev+0x163/0x590 net/wireless/core.c:1256
 ieee80211_remove_interfaces+0x4f1/0x700 net/mac80211/iface.c:2319
 ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1681
 mac80211_hwsim_del_radio+0x2c6/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5665
 hwsim_exit_net+0x5c3/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6545
 ops_exit_list net/core/net_namespace.c:172 [inline]
 cleanup_net+0x814/0xd60 net/core/net_namespace.c:654
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
 worker_thread+0x870/0xd50 kernel/workqueue.c:3400
 kthread+0x7b7/0x940 kernel/kthread.c:464
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
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
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
wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50