[    2.281430] ip_local_port_range: prefer different parity for start/end values.
[    2.662132] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    2.662223] #PF: supervisor write access in kernel mode
[    2.662274] #PF: error_code(0x0002) - not-present page
[    2.662321] PGD 0 P4D 0 
[    2.662350] Oops: Oops: 0002 [#1] SMP
[    2.662384] CPU: 0 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) 
[    2.662475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.662535] Workqueue: netns cleanup_net
[    2.662575] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.662631] 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
[    2.662790] RSP: 0018:ffffaaa440257bb8 EFLAGS: 00010046
[    2.662841] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000
[    2.662916] RDX: ffffaaa440257bf0 RSI: 0000000000000000 RDI: 0000000000000000
[    2.662981] RBP: ffffaaa440257bf0 R08: 0000000000000000 R09: 0000000000000101
[    2.663054] R10: ffffffff9c2080d8 R11: ffffaaa440003ff8 R12: 0000000000000000
[    2.663121] R13: ffffaaa440257ce8 R14: 0000000000000020 R15: ffffaaa440257df0
[    2.663190] FS:  0000000000000000(0000) GS:ffff91c7221d8000(0000) knlGS:0000000000000000
[    2.663259] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.663321] CR2: 0000000000000000 CR3: 000000000a441002 CR4: 0000000000772ef0
[    2.663397] PKRU: 55555554
[    2.663419] Call Trace:
[    2.663443]  <TASK>
[    2.663468]  __cancel_work+0x29/0xe0
[    2.663510]  ? queue_delayed_work_on+0x54/0x60
[    2.663556]  __cancel_work_sync+0x16/0x80
[    2.663597]  __dev_close_many+0x11b/0x280
[    2.663638]  netif_close_many+0x98/0x160
[    2.663673]  unregister_netdevice_many_notify+0x1d8/0xa50
[    2.663725]  ? unregister_netdevice_queue+0x29/0xe0
[    2.663770]  default_device_exit_batch+0x29b/0x300
[    2.663815]  ops_undo_list+0xec/0x1f0
[    2.663857]  cleanup_net+0x1b7/0x2b0
[    2.663898]  process_one_work+0x162/0x380
[    2.663939]  worker_thread+0x299/0x3c0
[    2.663982]  ? rescuer_thread+0x4c0/0x4c0
[    2.664016]  kthread+0x101/0x1f0
[    2.664050]  ? kthreads_online_cpu+0x110/0x110
[    2.664094]  ? kthreads_online_cpu+0x110/0x110
[    2.664141]  ret_from_fork+0x11c/0x140
[    2.664181]  ? kthreads_online_cpu+0x110/0x110
[    2.664233]  ret_from_fork_asm+0x11/0x20
[    2.664274]  </TASK>
[    2.664296] Modules linked in: nf_conntrack_netlink xt_REDIRECT tcp_diag inet_diag nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp nft_compat nf_tables x_tables veth
[    2.664460] CR2: 0000000000000000
[    2.664500] ---[ end trace 0000000000000000 ]---
[    2.664546] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.664599] 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
[    2.664766] RSP: 0018:ffffaaa440257bb8 EFLAGS: 00010046
[    2.664812] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000000
[    2.664880] RDX: ffffaaa440257bf0 RSI: 0000000000000000 RDI: 0000000000000000
[    2.664949] RBP: ffffaaa440257bf0 R08: 0000000000000000 R09: 0000000000000101
[    2.665019] R10: ffffffff9c2080d8 R11: ffffaaa440003ff8 R12: 0000000000000000
[    2.665085] R13: ffffaaa440257ce8 R14: 0000000000000020 R15: ffffaaa440257df0
[    2.665154] FS:  0000000000000000(0000) GS:ffff91c7221d8000(0000) knlGS:0000000000000000
[    2.665232] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.665294] CR2: 0000000000000000 CR3: 000000000a441002 CR4: 0000000000772ef0
[    2.665363] PKRU: 55555554
[    2.665384] note: kworker/u16:1[67] exited with irqs disabled