======================================================
WARNING: possible circular locking dependency detected
5.15.184-syzkaller #0 Not tainted
------------------------------------------------------
syz.0.15/4915 is trying to acquire lock:
ffff0000c9f4cd00 (team->team_lock_key#2){+.+.}-{3:3}, at: team_del_slave+0x30/0x194 drivers/net/team/team.c:2004

but task is already holding lock:
ffff0000d9d90628 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: nl80211_del_interface+0x100/0x5d8 net/wireless/nl80211.c:4116

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+0x194/0x1edc kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743
       wiphy_lock include/net/cfg80211.h:5314 [inline]
       ieee80211_open+0x13c/0x1e0 net/mac80211/iface.c:361
       __dev_open+0x2f4/0x4e8 net/core/dev.c:1537
       dev_open+0xa8/0x218 net/core/dev.c:1573
       team_port_add drivers/net/team/team.c:1220 [inline]
       team_add_slave+0x778/0x1f4c drivers/net/team/team.c:1990
       do_set_master net/core/rtnetlink.c:2575 [inline]
       do_setlink+0xb78/0x3088 net/core/rtnetlink.c:2786
       __rtnl_newlink net/core/rtnetlink.c:3450 [inline]
       rtnl_newlink+0x10d0/0x1404 net/core/rtnetlink.c:3572
       rtnetlink_rcv_msg+0x9d4/0xd04 net/core/rtnetlink.c:5650
       netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2489
       rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5668
       netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
       netlink_unicast+0x60c/0x89c net/netlink/af_netlink.c:1337
       netlink_sendmsg+0x6e8/0x9cc net/netlink/af_netlink.c:1905
       sock_sendmsg_nosec net/socket.c:704 [inline]
       __sock_sendmsg net/socket.c:716 [inline]
       ____sys_sendmsg+0x61c/0x920 net/socket.c:2436
       ___sys_sendmsg+0x1d0/0x240 net/socket.c:2490
       __sys_sendmsg net/socket.c:2519 [inline]
       __do_sys_sendmsg net/socket.c:2528 [inline]
       __se_sys_sendmsg net/socket.c:2526 [inline]
       __arm64_sys_sendmsg+0x1a8/0x254 net/socket.c:2526
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

-> #0 (team->team_lock_key#2){+.+.}-{3:3}:
       check_prev_add kernel/locking/lockdep.c:3053 [inline]
       check_prevs_add kernel/locking/lockdep.c:3172 [inline]
       validate_chain kernel/locking/lockdep.c:3788 [inline]
       __lock_acquire+0x2928/0x651c kernel/locking/lockdep.c:5012
       lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623
       __mutex_lock_common+0x194/0x1edc kernel/locking/mutex.c:596
       __mutex_lock kernel/locking/mutex.c:729 [inline]
       mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743
       team_del_slave+0x30/0x194 drivers/net/team/team.c:2004
       team_device_event+0x270/0x970 drivers/net/team/team.c:3048
       notifier_call_chain kernel/notifier.c:83 [inline]
       raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391
       call_netdevice_notifiers_info net/core/dev.c:2049 [inline]
       call_netdevice_notifiers_extack net/core/dev.c:2061 [inline]
       call_netdevice_notifiers net/core/dev.c:2075 [inline]
       unregister_netdevice_many+0xe10/0x17d0 net/core/dev.c:11134
       unregister_netdevice_queue+0x2ac/0x2f8 net/core/dev.c:11067
       unregister_netdevice include/linux/netdevice.h:3020 [inline]
       _cfg80211_unregister_wdev+0x160/0x4a0 net/wireless/core.c:1129
       cfg80211_unregister_wdev+0x24/0x34 net/wireless/core.c:1174
       ieee80211_if_remove+0x1a4/0x294 net/mac80211/iface.c:2108
       ieee80211_del_iface+0x20/0x34 net/mac80211/cfg.c:145
       rdev_del_virtual_intf net/wireless/rdev-ops.h:57 [inline]
       nl80211_del_interface+0x1d8/0x5d8 net/wireless/nl80211.c:4118
       genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
       genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
       genl_rcv_msg+0x8b4/0xb6c net/netlink/genetlink.c:792
       netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2489
       genl_rcv+0x38/0x50 net/netlink/genetlink.c:803
       netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
       netlink_unicast+0x60c/0x89c net/netlink/af_netlink.c:1337
       netlink_sendmsg+0x6e8/0x9cc net/netlink/af_netlink.c:1905
       sock_sendmsg_nosec net/socket.c:704 [inline]
       __sock_sendmsg net/socket.c:716 [inline]
       ____sys_sendmsg+0x61c/0x920 net/socket.c:2436
       ___sys_sendmsg+0x1d0/0x240 net/socket.c:2490
       __sys_sendmsg net/socket.c:2519 [inline]
       __do_sys_sendmsg net/socket.c:2528 [inline]
       __se_sys_sendmsg net/socket.c:2526 [inline]
       __arm64_sys_sendmsg+0x1a8/0x254 net/socket.c:2526
       __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
       invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
       el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
       do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
       el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
       el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
       el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

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 ***

3 locks held by syz.0.15/4915:
 #0: ffff8000162d3470 (cb_lock){++++}-{3:3}, at: genl_rcv+0x28/0x50 net/netlink/genetlink.c:802
 #1: ffff800016278168 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c net/core/rtnetlink.c:72
 #2: ffff0000d9d90628 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: nl80211_del_interface+0x100/0x5d8 net/wireless/nl80211.c:4116

stack backtrace:
CPU: 1 PID: 4915 Comm: syz.0.15 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call trace:
 dump_backtrace+0x0/0x43c arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf8/0x160 lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 print_circular_bug+0x148/0x1b0 kernel/locking/lockdep.c:2011
 check_noncircular+0x240/0x2d4 kernel/locking/lockdep.c:2133
 check_prev_add kernel/locking/lockdep.c:3053 [inline]
 check_prevs_add kernel/locking/lockdep.c:3172 [inline]
 validate_chain kernel/locking/lockdep.c:3788 [inline]
 __lock_acquire+0x2928/0x651c kernel/locking/lockdep.c:5012
 lock_acquire+0x1f4/0x620 kernel/locking/lockdep.c:5623
 __mutex_lock_common+0x194/0x1edc kernel/locking/mutex.c:596
 __mutex_lock kernel/locking/mutex.c:729 [inline]
 mutex_lock_nested+0xac/0x11c kernel/locking/mutex.c:743
 team_del_slave+0x30/0x194 drivers/net/team/team.c:2004
 team_device_event+0x270/0x970 drivers/net/team/team.c:3048
 notifier_call_chain kernel/notifier.c:83 [inline]
 raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391
 call_netdevice_notifiers_info net/core/dev.c:2049 [inline]
 call_netdevice_notifiers_extack net/core/dev.c:2061 [inline]
 call_netdevice_notifiers net/core/dev.c:2075 [inline]
 unregister_netdevice_many+0xe10/0x17d0 net/core/dev.c:11134
 unregister_netdevice_queue+0x2ac/0x2f8 net/core/dev.c:11067
 unregister_netdevice include/linux/netdevice.h:3020 [inline]
 _cfg80211_unregister_wdev+0x160/0x4a0 net/wireless/core.c:1129
 cfg80211_unregister_wdev+0x24/0x34 net/wireless/core.c:1174
 ieee80211_if_remove+0x1a4/0x294 net/mac80211/iface.c:2108
 ieee80211_del_iface+0x20/0x34 net/mac80211/cfg.c:145
 rdev_del_virtual_intf net/wireless/rdev-ops.h:57 [inline]
 nl80211_del_interface+0x1d8/0x5d8 net/wireless/nl80211.c:4118
 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
 genl_rcv_msg+0x8b4/0xb6c net/netlink/genetlink.c:792
 netlink_rcv_skb+0x208/0x3c4 net/netlink/af_netlink.c:2489
 genl_rcv+0x38/0x50 net/netlink/genetlink.c:803
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x60c/0x89c net/netlink/af_netlink.c:1337
 netlink_sendmsg+0x6e8/0x9cc net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:704 [inline]
 __sock_sendmsg net/socket.c:716 [inline]
 ____sys_sendmsg+0x61c/0x920 net/socket.c:2436
 ___sys_sendmsg+0x1d0/0x240 net/socket.c:2490
 __sys_sendmsg net/socket.c:2519 [inline]
 __do_sys_sendmsg net/socket.c:2528 [inline]
 __se_sys_sendmsg net/socket.c:2526 [inline]
 __arm64_sys_sendmsg+0x1a8/0x254 net/socket.c:2526
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
team0: Port device wlan1 removed