======================================================
WARNING: possible circular locking dependency detected
6.10.0-rc4-syzkaller-00891-gbf2468f9afba #0 Not tainted
------------------------------------------------------
kworker/u8:1/12 is trying to acquire lock:
ffff8880744acd20 (team->team_lock_key#674){+.+.}-{3:3}, at: team_del_slave+0x32/0x1d0 drivers/net/team/team_core.c:1990
but task is already holding lock:
ffff888029f60768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5966 [inline]
ffff888029f60768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: ieee80211_remove_interfaces+0x12b/0x700 net/mac80211/iface.c:2282
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&rdev->wiphy.mtx){+.+.}-{3:3}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__mutex_lock_common kernel/locking/mutex.c:608 [inline]
__mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752
wiphy_lock include/net/cfg80211.h:5966 [inline]
ieee80211_open+0xe7/0x200 net/mac80211/iface.c:449
__dev_open+0x2d3/0x450 net/core/dev.c:1474
dev_open+0xae/0x1b0 net/core/dev.c:1510
team_port_add drivers/net/team/team_core.c:1216 [inline]
team_add_slave+0x9b3/0x2750 drivers/net/team/team_core.c:1976
do_set_master net/core/rtnetlink.c:2701 [inline]
do_setlink+0xe70/0x41f0 net/core/rtnetlink.c:2907
__rtnl_newlink net/core/rtnetlink.c:3696 [inline]
rtnl_newlink+0x180d/0x20a0 net/core/rtnetlink.c:3743
rtnetlink_rcv_msg+0x89b/0x1180 net/core/rtnetlink.c:6641
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550
netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
netlink_unicast+0x7f0/0x990 net/netlink/af_netlink.c:1357
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2585
___sys_sendmsg net/socket.c:2639 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2668
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (team->team_lock_key#674){+.+.}-{3:3}:
check_prev_add kernel/locking/lockdep.c:3134 [inline]
check_prevs_add kernel/locking/lockdep.c:3253 [inline]
validate_chain+0x18e0/0x5900 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__mutex_lock_common kernel/locking/mutex.c:608 [inline]
__mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752
team_del_slave+0x32/0x1d0 drivers/net/team/team_core.c:1990
team_device_event+0x200/0x5b0 drivers/net/team/team_core.c:2984
notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93
call_netdevice_notifiers_extack net/core/dev.c:2032 [inline]
call_netdevice_notifiers net/core/dev.c:2046 [inline]
unregister_netdevice_many_notify+0xd75/0x16b0 net/core/dev.c:11320
unregister_netdevice_many net/core/dev.c:11378 [inline]
unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11257
unregister_netdevice include/linux/netdevice.h:3121 [inline]
_cfg80211_unregister_wdev+0x162/0x560 net/wireless/core.c:1211
ieee80211_remove_interfaces+0x4db/0x700 net/mac80211/iface.c:2307
ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1659
mac80211_hwsim_del_radio+0x2c4/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5576
hwsim_exit_net+0x5c1/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6453
ops_exit_list net/core/net_namespace.c:173 [inline]
cleanup_net+0x802/0xcc0 net/core/net_namespace.c:640
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&rdev->wiphy.mtx);
lock(team->team_lock_key#674);
lock(&rdev->wiphy.mtx);
lock(team->team_lock_key#674);
*** DEADLOCK ***
5 locks held by kworker/u8:1/12:
#0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
#0: ffff888015edd948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
#1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3207 [inline]
#1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
#2: ffffffff8f5da790 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
#3: ffffffff8f5e7288 (rtnl_mutex){+.+.}-{3:3}, at: ieee80211_unregister_hw+0x55/0x2c0 net/mac80211/main.c:1652
#4: ffff888029f60768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5966 [inline]
#4: ffff888029f60768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: ieee80211_remove_interfaces+0x12b/0x700 net/mac80211/iface.c:2282
stack backtrace:
CPU: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.10.0-rc4-syzkaller-00891-gbf2468f9afba #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: netns cleanup_net
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114
check_noncircular+0x36a/0x4a0 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+0x18e0/0x5900 kernel/locking/lockdep.c:3869
__lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5754
__mutex_lock_common kernel/locking/mutex.c:608 [inline]
__mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752
team_del_slave+0x32/0x1d0 drivers/net/team/team_core.c:1990
team_device_event+0x200/0x5b0 drivers/net/team/team_core.c:2984
notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93
call_netdevice_notifiers_extack net/core/dev.c:2032 [inline]
call_netdevice_notifiers net/core/dev.c:2046 [inline]
unregister_netdevice_many_notify+0xd75/0x16b0 net/core/dev.c:11320
unregister_netdevice_many net/core/dev.c:11378 [inline]
unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11257
unregister_netdevice include/linux/netdevice.h:3121 [inline]
_cfg80211_unregister_wdev+0x162/0x560 net/wireless/core.c:1211
ieee80211_remove_interfaces+0x4db/0x700 net/mac80211/iface.c:2307
ieee80211_unregister_hw+0x5d/0x2c0 net/mac80211/main.c:1659
mac80211_hwsim_del_radio+0x2c4/0x4c0 drivers/net/wireless/virtual/mac80211_hwsim.c:5576
hwsim_exit_net+0x5c1/0x670 drivers/net/wireless/virtual/mac80211_hwsim.c:6453
ops_exit_list net/core/net_namespace.c:173 [inline]
cleanup_net+0x802/0xcc0 net/core/net_namespace.c:640
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
team0: Port device wlan1 removed