[    2.365833] netdevsim netdevsim10946 eni10946np1: renamed from eth0
[    2.709844] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    2.709936] #PF: supervisor write access in kernel mode
[    2.709975] #PF: error_code(0x0002) - not-present page
[    2.710012] PGD 0 P4D 0 
[    2.710035] Oops: Oops: 0002 [#1] SMP
[    2.710076] CPU: 2 UID: 0 PID: 235 Comm: python3 Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) 
[    2.710139] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.710185] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.710233] 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
[    2.710349] RSP: 0018:ffff9c264059fae8 EFLAGS: 00010046
[    2.710387] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000080100005
[    2.710440] RDX: ffff9c264059fb20 RSI: 0000000000000000 RDI: 0000000000000000
[    2.710493] RBP: ffff9c264059fb20 R08: 0000000000000001 R09: ffffffffa313c800
[    2.710546] R10: ffff909343051800 R11: 0000000000000001 R12: 0000000000000000
[    2.710606] R13: ffff9c264059fc18 R14: 0000000000000020 R15: 0000000000000000
[    2.710661] FS:  00007f03f3a0c740(0000) GS:ffff9093da6d6000(0000) knlGS:0000000000000000
[    2.710715] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.710766] CR2: 0000000000000000 CR3: 00000000045a1002 CR4: 0000000000772ef0
[    2.710826] PKRU: 55555554
[    2.710847] Call Trace:
[    2.710872]  <TASK>
[    2.710897]  __cancel_work+0x29/0xe0
[    2.710931]  __cancel_work_sync+0x16/0x80
[    2.710961]  __dev_close_many+0x113/0x2b0
[    2.710998]  netif_close_many+0x98/0x160
[    2.711027]  unregister_netdevice_many_notify+0x10c/0xaa0
[    2.711065]  unregister_netdevice_queue+0xa0/0xe0
[    2.711107]  nsim_destroy+0x86/0x180 [netdevsim]
[    2.711151]  __nsim_dev_port_del+0x47/0x70 [netdevsim]
[    2.711193]  nsim_dev_reload_destroy+0x5b/0x110 [netdevsim]
[    2.711233]  nsim_drv_remove+0x2f/0xb0 [netdevsim]
[    2.711274]  device_release_driver_internal+0x193/0x200
[    2.711319]  bus_remove_device+0xc1/0x100
[    2.711349]  device_del+0x15f/0x480
[    2.711379]  device_unregister+0x12/0x30
[    2.711408]  del_device_store+0x117/0x1a0 [netdevsim]
[    2.711446]  kernfs_fop_write_iter+0x12b/0x1c0
[    2.711491]  vfs_write+0x33a/0x470
[    2.711529]  ksys_write+0x65/0xe0
[    2.711558]  do_syscall_64+0xa4/0xfd0
[    2.711592]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.711629] RIP: 0033:0x7f03f3beb257
[    2.711659] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[    2.711776] RSP: 002b:00007ffd1b33af38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    2.711835] RAX: ffffffffffffffda RBX: 00007f03f3a0c6e0 RCX: 00007f03f3beb257
[    2.711894] RDX: 0000000000000005 RSI: 00005574e941ec00 RDI: 0000000000000007
[    2.711948] RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000002
[    2.712001] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f03e5951f40
[    2.712054] R13: 00005574e941ec00 R14: 0000000000000007 R15: 00005574e907a020
[    2.712109]  </TASK>
[    2.712130] Modules linked in: netdevsim
[    2.712161] CR2: 0000000000000000
[    2.712190] ---[ end trace 0000000000000000 ]---
[    2.712228] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    2.712266] 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
[    2.712382] RSP: 0018:ffff9c264059fae8 EFLAGS: 00010046
[    2.712420] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000080100005
[    2.712473] RDX: ffff9c264059fb20 RSI: 0000000000000000 RDI: 0000000000000000
[    2.712527] RBP: ffff9c264059fb20 R08: 0000000000000001 R09: ffffffffa313c800
[    2.712582] R10: ffff909343051800 R11: 0000000000000001 R12: 0000000000000000
[    2.712634] R13: ffff9c264059fc18 R14: 0000000000000020 R15: 0000000000000000
[    2.712692] FS:  00007f03f3a0c740(0000) GS:ffff9093da6d6000(0000) knlGS:0000000000000000
[    2.712745] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.712792] CR2: 0000000000000000 CR3: 00000000045a1002 CR4: 0000000000772ef0
[    2.712851] PKRU: 55555554
[    2.712879] note: python3[235] exited with irqs disabled