[    2.053424] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    2.053502] #PF: supervisor write access in kernel mode
[    2.053538] #PF: error_code(0x0002) - not-present page
[    2.053586] PGD 0 P4D 0 
[    2.053609] Oops: Oops: 0002 [#1] SMP
[    2.053639] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) 
[    2.053715] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.053763] Workqueue: netns cleanup_net
[    2.053796] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.053851] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 <f0> 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41
[    2.053980] RSP: 0018:ffffb2b340067bb8 EFLAGS: 00010046
[    2.054013] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff
[    2.054062] RDX: ffffb2b340067bf0 RSI: 0000000000000000 RDI: 0000000000000000
[    2.054120] RBP: ffffb2b340067bf0 R08: ffffffff8f893e00 R09: 0000000000000101
[    2.054170] R10: ffffffff904080d8 R11: ffffb2b340003ff8 R12: 0000000000000000
[    2.054221] R13: ffffb2b340067ce8 R14: 0000000000000020 R15: ffffb2b340067df0
[    2.054272] FS:  0000000000000000(0000) GS:ffffa0c5adf91000(0000) knlGS:0000000000000000
[    2.054336] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.054380] CR2: 0000000000000000 CR3: 0000000004987005 CR4: 0000000000772ef0
[    2.054436] PKRU: 55555554
[    2.054457] Call Trace:
[    2.054477]  <TASK>
[    2.054499]  __cancel_work+0x29/0xe0
[    2.054532]  ? dev_deactivate_many+0x2c9/0x300
[    2.054579]  __cancel_work_sync+0x16/0x80
[    2.054610]  __dev_close_many+0x113/0x2b0
[    2.054641]  netif_close_many+0x98/0x160
[    2.054670]  unregister_netdevice_many_notify+0x10c/0xaa0
[    2.054723]  default_device_exit_batch+0x29b/0x300
[    2.054762]  ? mutex_lock+0x12/0x30
[    2.054802]  ops_undo_list+0xec/0x1f0
[    2.054843]  cleanup_net+0x1b7/0x300
[    2.054879]  process_one_work+0x162/0x380
[    2.054917]  worker_thread+0x299/0x3c0
[    2.054944]  ? rescuer_thread+0x4c0/0x4c0
[    2.054974]  kthread+0x101/0x1f0
[    2.055006]  ? kthreads_online_cpu+0x110/0x110
[    2.055043]  ? kthreads_online_cpu+0x110/0x110
[    2.055090]  ret_from_fork+0x11c/0x140
[    2.055121]  ? kthreads_online_cpu+0x110/0x110
[    2.055159]  ret_from_fork_asm+0x11/0x20
[    2.055192]  </TASK>
[    2.055213] Modules linked in:
[    2.055239] CR2: 0000000000000000
[    2.055264] ---[ end trace 0000000000000000 ]---
[    2.055309] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.055348] Code: 83 e6 01 41 57 41 56 4c 8d 77 20 41 55 41 54 41 89 f4 55 48 89 d5 53 48 89 fb 9c 58 fa 48 89 45 00 45 85 e4 0f 85 8a 00 00 00 <f0> 48 0f ba 2b 00 41 0f 92 c5 72 0e 5b 44 89 e8 5d 41 5c 41 5d 41
[    2.055464] RSP: 0018:ffffb2b340067bb8 EFLAGS: 00010046
[    2.055511] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff
[    2.055568] RDX: ffffb2b340067bf0 RSI: 0000000000000000 RDI: 0000000000000000
[    2.055618] RBP: ffffb2b340067bf0 R08: ffffffff8f893e00 R09: 0000000000000101
[    2.055668] R10: ffffffff904080d8 R11: ffffb2b340003ff8 R12: 0000000000000000
[    2.055734] R13: ffffb2b340067ce8 R14: 0000000000000020 R15: ffffb2b340067df0
[    2.055783] FS:  0000000000000000(0000) GS:ffffa0c5adf91000(0000) knlGS:0000000000000000
[    2.055847] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.055894] CR2: 0000000000000000 CR3: 0000000004987005 CR4: 0000000000772ef0
[    2.055953] PKRU: 55555554
[    2.055969] note: kworker/u16:0[12] exited with irqs disabled

WAIT TIMEOUT stderr

Ctrl-C stderr

Ctrl-C stderr

WAIT TIMEOUT stderr