------------[ cut here ]------------
WARNING: CPU: 1 PID: 9 at kernel/workqueue.c:1441 __queue_work+0xddc/0xf90
Modules linked in:
CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 6.1.113-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: netns cleanup_net
RIP: 0010:__queue_work+0xddc/0xf90 kernel/workqueue.c:1441
Code: 8b 3c 24 e8 d6 74 88 00 e9 d9 fc ff ff e8 7c f3 30 00 89 ee 48 c7 c7 40 99 1d 8d e8 2e 9c 0b 03 e9 1e fc ff ff e8 64 f3 30 00 <0f> 0b 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 4e f3 30 00
RSP: 0018:ffffc900001e0af8 EFLAGS: 00010046
RAX: ffffffff81599f5c RBX: 00000000000b0012 RCX: ffff888017f38000
RDX: 0000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: 0000000000010000 R08: ffffffff815a8d05 R09: fffffbfff1d34056
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: dffffc0000000000 R14: 0000000000000008 R15: ffff88807a404000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2d58981440 CR3: 000000005c180000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
 expire_timers kernel/time/timer.c:1544 [inline]
 __run_timers+0x6a8/0x890 kernel/time/timer.c:1820
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1106 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1106
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:lockdep_unregister_key+0x562/0x600 kernel/locking/lockdep.c:6367
Code: 1e 91 48 c7 c6 20 ea 6a 81 e8 0a b4 08 00 e8 45 c8 08 00 e9 ea fb ff ff e8 1b 4a 3c 09 41 f7 c7 00 02 00 00 74 d0 fb 45 84 f6 <75> cf eb e0 0f 0b 45 31 f6 e9 64 ff ff ff 0f 0b e9 a5 fe ff ff 0f
RSP: 0018:ffffc900000e7760 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 1ffff9200001cef4 RCX: ffffffff97337103
RDX: 0000000000000001 RSI: ffffffff8b0c0fa0 RDI: ffffffff8b5d7340
RBP: ffffc900000e7840 R08: dffffc0000000000 R09: fffffbfff223c18c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc900000e77a0
R13: 1ffff9200001cef0 R14: 0000000000000000 R15: 0000000000000203
 __qdisc_destroy+0x127/0x450 net/sched/sch_generic.c:1069
 qdisc_put net/sched/sch_generic.c:1095 [inline]
 dev_shutdown+0x359/0x440 net/sched/sch_generic.c:1483
 unregister_netdevice_many+0xaac/0x17a0 net/core/dev.c:10877
 default_device_exit_batch+0x956/0x9d0 net/core/dev.c:11399
 ops_exit_list net/core/net_namespace.c:177 [inline]
 cleanup_net+0x763/0xb60 net/core/net_namespace.c:604
 process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
 worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
 kthread+0x28d/0x320 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	91                   	xchg   %eax,%ecx
   1:	48 c7 c6 20 ea 6a 81 	mov    $0xffffffff816aea20,%rsi
   8:	e8 0a b4 08 00       	call   0x8b417
   d:	e8 45 c8 08 00       	call   0x8c857
  12:	e9 ea fb ff ff       	jmp    0xfffffc01
  17:	e8 1b 4a 3c 09       	call   0x93c4a37
  1c:	41 f7 c7 00 02 00 00 	test   $0x200,%r15d
  23:	74 d0                	je     0xfffffff5
  25:	fb                   	sti
  26:	45 84 f6             	test   %r14b,%r14b
* 29:	75 cf                	jne    0xfffffffa <-- trapping instruction
  2b:	eb e0                	jmp    0xd
  2d:	0f 0b                	ud2
  2f:	45 31 f6             	xor    %r14d,%r14d
  32:	e9 64 ff ff ff       	jmp    0xffffff9b
  37:	0f 0b                	ud2
  39:	e9 a5 fe ff ff       	jmp    0xfffffee3
  3e:	0f                   	.byte 0xf