[    3.275518] BUG: kernel NULL pointer dereference, address: 0000000000000000
[    3.275608] #PF: supervisor write access in kernel mode
[    3.275652] #PF: error_code(0x0002) - not-present page
[    3.275697] PGD 4292067 P4D 4292067 PUD 4150067 PMD 0 
[    3.275751] Oops: Oops: 0002 [#1] SMP
[    3.275795] CPU: 2 UID: 0 PID: 288 Comm: ip Not tainted 6.18.0-rc5-virtme #1 PREEMPT(voluntary) 
[    3.275882] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.275939] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    3.276008] 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
[    3.276166] RSP: 0018:ffff9b3f8059f610 EFLAGS: 00010046
[    3.276218] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000080100007
[    3.276295] RDX: ffff9b3f8059f648 RSI: 0000000000000000 RDI: 0000000000000000
[    3.276364] RBP: ffff9b3f8059f648 R08: 0000000000000001 R09: ffffffffaa756300
[    3.276435] R10: ffff8ad6861ce800 R11: 0000000000000001 R12: 0000000000000000
[    3.276504] R13: ffff9b3f8059f740 R14: 0000000000000020 R15: 00000000ffffffff
[    3.276573] FS:  00007f3d10a26800(0000) GS:ffff8ad713091000(0000) knlGS:0000000000000000
[    3.276648] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.276711] CR2: 0000000000000000 CR3: 0000000003157003 CR4: 0000000000772ef0
[    3.276780] PKRU: 55555554
[    3.276808] Call Trace:
[    3.276838]  <TASK>
[    3.276873]  __cancel_work+0x29/0xe0
[    3.276920]  __cancel_work_sync+0x16/0x80
[    3.276959]  __dev_close_many+0x113/0x2b0
[    3.277015]  netif_close_many+0x98/0x160
[    3.277056]  unregister_netdevice_many_notify+0x1ea/0xaa0
[    3.277103]  ? unregister_netdevice_queue+0x29/0xe0
[    3.277151]  rtnl_dellink+0x156/0x350
[    3.277197]  ? virtio_fs_enqueue_req+0x352/0x570
[    3.277257]  ? netdev_run_todo+0x63/0x550
[    3.277291]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    3.277344]  rtnetlink_rcv_msg+0x358/0x400
[    3.277387]  ? get_page_from_freelist+0x15b4/0x1770
[    3.277442]  ? rtnl_calcit.isra.0+0x110/0x110
[    3.277494]  netlink_rcv_skb+0x57/0x100
[    3.277545]  netlink_unicast+0x252/0x380
[    3.277587]  ? __alloc_skb+0xfc/0x1e0
[    3.277629]  netlink_sendmsg+0x1be/0x3e0
[    3.277663]  ____sys_sendmsg+0x132/0x260
[    3.277708]  ? copy_msghdr_from_user+0x6c/0xa0
[    3.277756]  ___sys_sendmsg+0x87/0xd0
[    3.277793]  ? do_wp_page+0x369/0xe90
[    3.277835]  ? ___pte_offset_map+0x1b/0xd0
[    3.277877]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    3.277937]  ? fsnotify_grab_connector+0x48/0x80
[    3.277989]  ? fsnotify_destroy_marks+0x29/0x150
[    3.278042]  __sys_sendmsg+0x71/0xd0
[    3.278076]  do_syscall_64+0xa4/0xfd0
[    3.278126]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    3.278186] RIP: 0033:0x7f3d10bf41d7
[    3.278230] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[    3.278393] RSP: 002b:00007ffe61a3c9c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    3.278467] RAX: ffffffffffffffda RBX: 00007ffe61a3d100 RCX: 00007f3d10bf41d7
[    3.278535] RDX: 0000000000000000 RSI: 00007ffe61a3ca30 RDI: 0000000000000005
[    3.278602] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078
[    3.278671] R10: 00007f3d10af0510 R11: 0000000000000246 R12: 0000000000000001
[    3.278738] R13: 00000000691cd56c R14: 0000000000499600 R15: 0000000000000000
[    3.278806]  </TASK>
[    3.278828] Modules linked in:
[    3.278864] CR2: 0000000000000000
[    3.278904] ---[ end trace 0000000000000000 ]---
[    3.278950] RIP: 0010:work_grab_pending+0x2f/0x1b0
[    3.278996] 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
[    3.279156] RSP: 0018:ffff9b3f8059f610 EFLAGS: 00010046
[    3.279203] RAX: 0000000000000246 RBX: 0000000000000000 RCX: 0000000080100007
[    3.279271] RDX: ffff9b3f8059f648 RSI: 0000000000000000 RDI: 0000000000000000
[    3.279339] RBP: ffff9b3f8059f648 R08: 0000000000000001 R09: ffffffffaa756300
[    3.279406] R10: ffff8ad6861ce800 R11: 0000000000000001 R12: 0000000000000000
[    3.279473] R13: ffff9b3f8059f740 R14: 0000000000000020 R15: 00000000ffffffff
[    3.279544] FS:  00007f3d10a26800(0000) GS:ffff8ad713091000(0000) knlGS:0000000000000000
[    3.279620] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.279675] CR2: 0000000000000000 CR3: 0000000003157003 CR4: 0000000000772ef0
[    3.279743] PKRU: 55555554
[    3.279765] note: ip[288] exited with irqs disabled
[    3.280063] ip (288) used greatest stack depth: 11432 bytes left