[    2.057320] ip_local_port_range: prefer different parity for start/end values.
[    2.086839] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    2.086930] #PF: supervisor write access in kernel mode
[    2.086991] #PF: error_code(0x0002) - not-present page
[    2.087051] PGD 0 P4D 0 
[    2.087082] Oops: Oops: 0002 [#1] SMP
[    2.087136] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) 
[    2.087245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.087318] Workqueue: netns cleanup_net
[    2.087358] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.087412] 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
[    2.087544] RSP: 0000:ffffb78100067bb8 EFLAGS: 00010046
[    2.087587] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff
[    2.087647] RDX: ffffb78100067bf0 RSI: 0000000000000000 RDI: 0000000000000000
[    2.087704] RBP: ffffb78100067bf0 R08: ffffffffb7293e00 R09: 0000000000000101
[    2.087764] R10: ffffffffb7e080d8 R11: ffffb78100003ff8 R12: 0000000000000000
[    2.087824] R13: ffffb78100067ce8 R14: 0000000000000020 R15: ffffb78100067df0
[    2.087886] FS:  0000000000000000(0000) GS:ffffa01547591000(0000) knlGS:0000000000000000
[    2.087945] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.087995] CR2: 0000000000000000 CR3: 0000000001ade001 CR4: 0000000000772ef0
[    2.088064] PKRU: 55555554
[    2.088087] Call Trace:
[    2.088106]  <TASK>
[    2.088130]  __cancel_work+0x29/0xe0
[    2.088169]  ? dev_deactivate_many+0x2c9/0x300
[    2.088216]  __cancel_work_sync+0x16/0x80
[    2.088249]  __dev_close_many+0x113/0x2b0
[    2.088286]  netif_close_many+0x98/0x160
[    2.088329]  unregister_netdevice_many_notify+0x1ea/0xaa0
[    2.088371]  default_device_exit_batch+0x29b/0x300
[    2.088414]  ? mutex_lock+0x12/0x30
[    2.088454]  ops_undo_list+0xec/0x1f0
[    2.088494]  cleanup_net+0x1b7/0x300
[    2.088533]  process_one_work+0x162/0x380
[    2.088566]  worker_thread+0x299/0x3c0
[    2.088600]  ? rescuer_thread+0x4c0/0x4c0
[    2.088631]  kthread+0x101/0x1f0
[    2.088668]  ? kthreads_online_cpu+0x110/0x110
[    2.088710]  ? kthreads_online_cpu+0x110/0x110
[    2.088752]  ret_from_fork+0x11c/0x140
[    2.088790]  ? kthreads_online_cpu+0x110/0x110
[    2.088839]  ret_from_fork_asm+0x11/0x20
[    2.088874]  </TASK>
[    2.088897] Modules linked in:
[    2.088924] CR2: 0000000000000000
[    2.088958] ---[ end trace 0000000000000000 ]---
[    2.088999] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.089041] 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
[    2.089181] RSP: 0000:ffffb78100067bb8 EFLAGS: 00010046
[    2.089222] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 00000000ffffffff
[    2.089278] RDX: ffffb78100067bf0 RSI: 0000000000000000 RDI: 0000000000000000
[    2.089345] RBP: ffffb78100067bf0 R08: ffffffffb7293e00 R09: 0000000000000101
[    2.089405] R10: ffffffffb7e080d8 R11: ffffb78100003ff8 R12: 0000000000000000
[    2.089465] R13: ffffb78100067ce8 R14: 0000000000000020 R15: ffffb78100067df0
[    2.089529] FS:  0000000000000000(0000) GS:ffffa01547591000(0000) knlGS:0000000000000000
[    2.089590] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.089641] CR2: 0000000000000000 CR3: 0000000001ade001 CR4: 0000000000772ef0
[    2.089698] PKRU: 55555554
[    2.089722] note: kworker/u16:0[12] exited with irqs disabled

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