[    2.254798] veth0: renamed from veth-rt-1
[    2.388183] veth0: renamed from veth-rt-2
[   57.822810] BUG: kernel NULL pointer dereference, address: 0000000000000000
[   57.822920] #PF: supervisor write access in kernel mode
[   57.822964] #PF: error_code(0x0002) - not-present page
[   57.823010] PGD 0 P4D 0 
[   57.823043] Oops: Oops: 0002 [#1] SMP
[   57.823091] CPU: 0 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) 
[   57.823186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   57.823251] Workqueue: netns cleanup_net
[   57.823310] RIP: 0010:work_grab_pending+0x2f/0x1b0
[   57.823371] 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
[   57.823550] RSP: 0018:ffffa5320024fb88 EFLAGS: 00010046
[   57.823602] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004
[   57.823680] RDX: ffffa5320024fbc0 RSI: 0000000000000000 RDI: 0000000000000000
[   57.823757] RBP: ffffa5320024fbc0 R08: ffff934c813ab673 R09: ffffffff82e71c80
[   57.823837] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   57.823915] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001
[   57.823995] FS:  0000000000000000(0000) GS:ffff934d3b591000(0000) knlGS:0000000000000000
[   57.824081] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.824154] CR2: 0000000000000000 CR3: 0000000003900001 CR4: 0000000000772ef0
[   57.824231] PKRU: 55555554
[   57.824262] Call Trace:
[   57.824301]  <TASK>
[   57.824337]  __cancel_work+0x29/0xe0
[   57.824378]  ? linkwatch_urgent_event+0x2f/0xb0
[   57.824436]  __cancel_work_sync+0x16/0x80
[   57.824476]  __dev_close_many+0x113/0x2b0
[   57.824522]  __dev_change_flags+0xed/0x220
[   57.824567]  netif_change_flags+0x25/0x60
[   57.824614]  dev_change_flags+0x40/0xa0
[   57.824662]  cycle_netdev+0x36/0x70
[   57.824717]  vrf_dellink+0x5c/0xa0
[   57.824768]  default_device_exit_batch+0x246/0x300
[   57.824819]  ? mutex_lock+0x12/0x30
[   57.824870]  ops_undo_list+0xec/0x1f0
[   57.824911]  cleanup_net+0x1b7/0x300
[   57.824957]  process_one_work+0x162/0x380
[   57.825007]  worker_thread+0x299/0x3c0
[   57.825050]  ? rescuer_thread+0x4c0/0x4c0
[   57.825090]  kthread+0x101/0x1f0
[   57.825138]  ? kthreads_online_cpu+0x110/0x110
[   57.825196]  ? kthreads_online_cpu+0x110/0x110
[   57.825248]  ret_from_fork+0x11c/0x140
[   57.825297]  ? kthreads_online_cpu+0x110/0x110
[   57.825359]  ret_from_fork_asm+0x11/0x20
[   57.825412]  </TASK>
[   57.825439] Modules linked in:
[   57.825482] CR2: 0000000000000000
[   57.825526] ---[ end trace 0000000000000000 ]---
[   57.825585] RIP: 0010:work_grab_pending+0x2f/0x1b0
[   57.825638] 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
[   57.825817] RSP: 0018:ffffa5320024fb88 EFLAGS: 00010046
[   57.825870] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000000000004
[   57.825947] RDX: ffffa5320024fbc0 RSI: 0000000000000000 RDI: 0000000000000000
[   57.826024] RBP: ffffa5320024fbc0 R08: ffff934c813ab673 R09: ffffffff82e71c80
[   57.826106] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[   57.826182] R13: 0000000000000000 R14: 0000000000000020 R15: 0000000000000001
[   57.826261] FS:  0000000000000000(0000) GS:ffff934d3b591000(0000) knlGS:0000000000000000
[   57.826348] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   57.826416] CR2: 0000000000000000 CR3: 0000000003900001 CR4: 0000000000772ef0
[   57.826506] PKRU: 55555554
[   57.826529] note: kworker/u16:1[66] exited with irqs disabled