bridge_slave_0: left allmulticast mode
bridge_slave_0: left promiscuous mode
bridge0: port 1(bridge_slave_0) entered disabled state
------------[ cut here ]------------
DEBUG_LOCKS_WARN_ON(!test_bit(class_idx, lock_classes_in_use))
WARNING: CPU: 0 PID: 11 at kernel/locking/lockdep.c:5112 __lock_acquire+0x15e9/0x2040 kernel/locking/lockdep.c:5112
Modules linked in:
CPU: 0 UID: 0 PID: 11 Comm: kworker/u8:0 Not tainted 6.11.0-rc7-syzkaller-00039-g77f587896757 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: netns cleanup_net

RIP: 0010:__lock_acquire+0x15e9/0x2040 kernel/locking/lockdep.c:5112
Code: 0f b6 04 08 84 c0 0f 85 d7 09 00 00 83 3d 9e bf a8 0e 00 75 19 90 48 c7 c7 00 d4 0a 8c 48 c7 c6 80 fc 0a 8c e8 18 c8 e5 ff 90 <0f> 0b 90 90 90 e9 13 fe ff ff 90 0f 0b 90 e9 69 fd ff ff 90 e8 ee
RSP: 0018:ffffc90000107390 EFLAGS: 00010046
RAX: 5c5007a7ceb63e00 RBX: 0000000015436a6c RCX: ffff88801ce93c00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88801ce947a8 R08: ffffffff8155b372 R09: 1ffff1101710519a
R10: dffffc0000000000 R11: ffffed101710519b R12: ffff88801ce93c00
R13: ffff88801ce946d8 R14: 0000000000000000 R15: ffff88801ce947c8
FS:  0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559fd120ba18 CR3: 000000007d0d2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
 down+0x39/0xc0 kernel/locking/semaphore.c:59
 netpoll_poll_disable+0x10a/0x1d0 net/core/netpoll.c:228
 __dev_close_many+0x107/0x300 net/core/dev.c:1530
 dev_close_many+0x24e/0x4c0 net/core/dev.c:1583
 unregister_netdevice_many_notify+0x50b/0x1c40 net/core/dev.c:11327
 cleanup_net+0x75d/0xcc0 net/core/net_namespace.c:635
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389
 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>