[    2.142646] xdummy0: entered promiscuous mode
[    2.146442] BUG: kernel NULL pointer dereference, address: 0000000000000858
[    2.146471] #PF: supervisor read access in kernel mode
[    2.146491] #PF: error_code(0x0000) - not-present page
[    2.146513] PGD 4c99067 P4D 195c067 PUD 196e067 PMD 0 
[    2.146530] Oops: Oops: 0000 [#1] SMP
[    2.146545] CPU: 0 UID: 0 PID: 181 Comm: tap Not tainted 7.2.0-rc1-virtme #1 PREEMPT(lazy) 
[    2.146573] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.146597] RIP: 0010:macvlan_port_release_mac+0x23/0x220
[    2.146625] Code: 10 eb d9 0f 1f 40 00 0f 1f 44 00 00 48 81 ec 88 00 00 00 65 48 8b 05 4c a1 6b 01 48 89 84 24 80 00 00 00 48 8b 87 00 01 00 00 <f6> 80 58 08 00 00 01 74 24 48 8b 10 48 8b 92 58 04 00 00 8b 0a 0f
[    2.146706] RSP: 0018:ff3b6c994101b7c0 EFLAGS: 00010286
[    2.146724] RAX: 0000000000000000 RBX: ff2af40541998000 RCX: 0000000000000000
[    2.146758] RDX: 0000000000000000 RSI: ff2af40541998818 RDI: ff2af40541180000
[    2.146783] RBP: ff2af40541998818 R08: 000000006c72c54a R09: 0000000000000f4a
[    2.146819] R10: ff2af40541064380 R11: 0000000000000001 R12: ff2af40541180000
[    2.146849] R13: ff2af40543c0e300 R14: ff2af40543c91740 R15: 0000000000000003
[    2.146877] FS:  00007f90122bb740(0000) GS:ff2af405e2437000(0000) knlGS:0000000000000000
[    2.146906] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.146932] CR2: 0000000000000858 CR3: 0000000004c4a002 CR4: 0000000000771ef0
[    2.146962] PKRU: 55555554
[    2.146975] Call Trace:
[    2.146992]  <TASK>
[    2.147000]  ? enable_work+0x3a/0x100
[    2.147017]  ? cancel_work_sync+0x62/0x70
[    2.147035]  macvlan_port_destroy+0xa1/0xb0
[    2.147050]  unregister_netdevice_many_notify+0x685/0xa30
[    2.147077]  rtnl_dellink+0x257/0x430
[    2.147094]  ? rtnl_dellinkprop+0x20/0x20
[    2.147108]  rtnetlink_rcv_msg+0x39f/0x460
[    2.147126]  ? pick_eevdf+0xd3/0x220
[    2.147143]  ? rtnl_calcit.isra.0+0x160/0x160
[    2.147160]  netlink_rcv_skb+0xca/0x140
[    2.147176]  netlink_unicast+0x26b/0x3a0
[    2.147190]  netlink_sendmsg+0x1e2/0x430
[    2.147211]  __sys_sendto+0x188/0x210
[    2.147224]  ? __d_alloc+0x40/0x210
[    2.147244]  __x64_sys_sendto+0x24/0x30
[    2.147260]  do_syscall_64+0x104/0x520
[    2.147275]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.147296] RIP: 0033:0x7f901232d54e
[    2.147312] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
[    2.147378] RSP: 002b:00007ffda4a96610 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[    2.147405] RAX: ffffffffffffffda RBX: 0000000000000030 RCX: 00007f901232d54e
[    2.147431] RDX: 0000000000000030 RSI: 00007ffda4a96670 RDI: 0000000000000005
[    2.147465] RBP: 00007ffda4a96620 R08: 0000000000000000 R09: 0000000000000000
[    2.147490] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000404360
[    2.147517] R13: 0000000000406160 R14: 0000000000000001 R15: 00007f90122ba000
[    2.147542]  </TASK>
[    2.147552] Modules linked in:
[    2.147567] CR2: 0000000000000858
[    2.147583] ---[ end trace 0000000000000000 ]---
[    2.147599] RIP: 0010:macvlan_port_release_mac+0x23/0x220
[    2.147623] Code: 10 eb d9 0f 1f 40 00 0f 1f 44 00 00 48 81 ec 88 00 00 00 65 48 8b 05 4c a1 6b 01 48 89 84 24 80 00 00 00 48 8b 87 00 01 00 00 <f6> 80 58 08 00 00 01 74 24 48 8b 10 48 8b 92 58 04 00 00 8b 0a 0f
[    2.147692] RSP: 0018:ff3b6c994101b7c0 EFLAGS: 00010286
[    2.147715] RAX: 0000000000000000 RBX: ff2af40541998000 RCX: 0000000000000000
[    2.147739] RDX: 0000000000000000 RSI: ff2af40541998818 RDI: ff2af40541180000
[    2.147768] RBP: ff2af40541998818 R08: 000000006c72c54a R09: 0000000000000f4a
[    2.147799] R10: ff2af40541064380 R11: 0000000000000001 R12: ff2af40541180000
[    2.147826] R13: ff2af40543c0e300 R14: ff2af40543c91740 R15: 0000000000000003
[    2.147852] FS:  00007f90122bb740(0000) GS:ff2af405e2437000(0000) knlGS:0000000000000000
[    2.147888] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.147913] CR2: 0000000000000858 CR3: 0000000004c4a002 CR4: 0000000000771ef0
[    2.147940] PKRU: 55555554
[    2.147950] note: tap[181] exited with irqs disabled
[    2.148015] tap (181) used greatest stack depth: 11752 bytes left

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