------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(!irqs_disabled())
WARNING: CPU: 1 PID: 11 at kernel/locking/lockdep.c:150 lockdep_unlock+0x1e6/0x300 kernel/locking/lockdep.c:150
Modules linked in:
CPU: 1 PID: 11 Comm: kworker/u8:1 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: netns cleanup_net
RIP: 0010:lockdep_unlock+0x1e6/0x300 kernel/locking/lockdep.c:150
Code: 0f b6 04 30 84 c0 0f 85 e4 00 00 00 83 3d 61 90 15 0e 00 75 19 90 48 c7 c7 c0 c0 aa 8b 48 c7 c6 00 c1 aa 8b e8 2b 78 e6 ff 90 <0f> 0b 90 90 90 e9 d2 fe ff ff 90 e8 0a a4 2f 03 85 c0 74 3a 48 c7
RSP: 0018:ffffc90000106c20 EFLAGS: 00010246
RAX: b58b4fdb5d527100 RBX: 1ffff92000020d88 RCX: ffff8880172abc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000106cb0 R08: ffffffff8157cc12 R09: 1ffff110172a51a2
R10: dffffc0000000000 R11: ffffed10172a51a3 R12: 1ffff92000020d84
R13: ffff8880172ac7e8 R14: dffffc0000000000 R15: ffffc90000106c40
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30f22000 CR3: 000000002b10e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 graph_unlock kernel/locking/lockdep.c:186 [inline]
 validate_chain+0x15a2/0x58e0 kernel/locking/lockdep.c:3873
 __lock_acquire+0x1346/0x1fd0 kernel/locking/lockdep.c:5137
 lock_acquire+0x1e4/0x530 kernel/locking/lockdep.c:5754
 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
 _raw_spin_lock_bh+0x35/0x50 kernel/locking/spinlock.c:178
 spin_lock_bh include/linux/spinlock.h:356 [inline]
 addrconf_ifdown+0xdda/0x1bc0 net/ipv6/addrconf.c:3955
 addrconf_notify+0x3cb/0x1020
 notifier_call_chain+0x18f/0x3b0 kernel/notifier.c:93
 call_netdevice_notifiers_extack net/core/dev.c:1988 [inline]
 call_netdevice_notifiers net/core/dev.c:2002 [inline]
 dev_close_many+0x33c/0x4c0 net/core/dev.c:1543
 unregister_netdevice_many_notify+0x544/0x16d0 net/core/dev.c:11074
 unregister_netdevice_many net/core/dev.c:11157 [inline]
 unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11036
 unregister_netdevice include/linux/netdevice.h:3115 [inline]
 nsim_destroy+0x13a/0x260 drivers/net/netdevsim/netdev.c:456
 __nsim_dev_port_del+0x14b/0x1b0 drivers/net/netdevsim/dev.c:1425
 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1437 [inline]
 nsim_dev_reload_destroy+0x28a/0x490 drivers/net/netdevsim/dev.c:1658
 nsim_dev_reload_down+0x98/0xd0 drivers/net/netdevsim/dev.c:965
 devlink_reload+0x189/0x870 net/devlink/dev.c:461
 devlink_pernet_pre_exit+0x1f3/0x440 net/devlink/core.c:509
 ops_pre_exit_list net/core/net_namespace.c:160 [inline]
 cleanup_net+0x615/0xcc0 net/core/net_namespace.c:617
 process_one_work kernel/workqueue.c:3254 [inline]
 process_scheduled_works+0xa00/0x1770 kernel/workqueue.c:3335
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3416
 kthread+0x2f0/0x390 kernel/kthread.c:388
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>