team0 (unregistering): Port device team_slave_1 removed
team0 (unregistering): Port device team_slave_0 removed
------------[ cut here ]------------
ida_free called for id=953 which is not allocated.
WARNING: CPU: 0 PID: 6196 at lib/idr.c:592 ida_free+0x280/0x310 lib/idr.c:592
Modules linked in:
CPU: 0 UID: 0 PID: 6196 Comm: kworker/u8:11 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Workqueue: netns cleanup_net
RIP: 0010:ida_free+0x280/0x310 lib/idr.c:592
Code: 00 00 00 00 fc ff df 48 8b 5c 24 10 48 8b 7c 24 40 48 89 de e8 31 28 0c 00 90 48 c7 c7 c0 26 76 8c 44 89 fe e8 e1 8c 55 f6 90 <0f> 0b 90 90 eb 34 e8 35 02 92 f6 49 bd 00 00 00 00 00 fc ff df eb
RSP: 0018:ffffc9000453f280 EFLAGS: 00010246
RAX: e0cf167699248800 RBX: 0000000000000216 RCX: ffff8880299b1e00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc9000453f378 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1b7a1d4 R12: 1ffff920008a7e54
R13: dffffc0000000000 R14: ffff888141698000 R15: 00000000000003b9
FS:  0000000000000000(0000) GS:ffff88812637e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000005000 CR3: 000000002f9a1000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 proc_free_inum fs/proc/generic.c:216 [inline]
 pde_put+0x7e/0x1b0 fs/proc/generic.c:696
 remove_proc_subtree+0x3e8/0x530 fs/proc/generic.c:796
 snmp6_unregister_dev+0xae/0xf0 net/ipv6/proc.c:274
 addrconf_ifdown+0x240/0x1880 net/ipv6/addrconf.c:3870
 addrconf_notify+0x1bc/0x1010 net/ipv6/addrconf.c:-1
 notifier_call_chain+0x1b6/0x3e0 kernel/notifier.c:85
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 unregister_netdevice_many_notify+0x14d7/0x1ff0 net/core/dev.c:12166
 unregister_netdevice_many net/core/dev.c:12229 [inline]
 default_device_exit_batch+0x819/0x890 net/core/dev.c:12733
 ops_exit_list net/core/net_namespace.c:205 [inline]
 ops_undo_list+0x525/0x990 net/core/net_namespace.c:252
 cleanup_net+0x4d8/0x820 net/core/net_namespace.c:695
 process_one_work kernel/workqueue.c:3236 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3319
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3400
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x439/0x7d0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>