[    2.572351] ip (256) used greatest stack depth: 12328 bytes left
[    2.587103] eth1: renamed from tmp
[    2.621101] eth2: renamed from tmp
[    2.652468] l2tp_core: L2TP core driver, V2.0
[    2.654112] l2tp_netlink: L2TP netlink interface
[    2.660290] l2tp_ip: L2TP IP encapsulation support (L2TPv3)
[    2.668127] l2tp_eth: L2TP ethernet pseudowire support (L2TPv3)
[    2.668366] BUG: kernel NULL pointer dereference, address: 0000000000000054
[    2.668413] #PF: supervisor read access in kernel mode
[    2.668447] #PF: error_code(0x0000) - not-present page
[    2.668477] PGD 6697067 P4D 66b0067 PUD 66a7067 PMD 0 
[    2.668512] Oops: Oops: 0000 [#1] SMP
[    2.668536] CPU: 0 UID: 0 PID: 280 Comm: ip Not tainted 7.0.0-rc1-virtme #1 PREEMPT(lazy) 
[    2.668580] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.668610] RIP: 0010:l2tp_eth_create+0xf2/0x300 [l2tp_eth]
[    2.668638] Code: 00 00 ff ff 00 00 48 89 85 18 02 00 00 41 8b 74 24 3c 85 f6 0f 84 a2 00 00 00 48 8b 53 20 0f b7 43 4a 4d 8b ac 24 b8 00 00 00 <8b> 4a 54 03 42 3c 31 d2 85 c9 0f 94 c2 44 8d 74 d0 0e e8 37 31 80
[    2.668731] RSP: 0018:ff5f6cfe405ff8f8 EFLAGS: 00010206
[    2.668754] RAX: 0000000000000008 RBX: ff38db4f012a5600 RCX: 0000000000000005
[    2.668798] RDX: 0000000000000000 RSI: 0000000000000014 RDI: 7f7f7fffffffffff
[    2.668833] RBP: ff38db4f04f33000 R08: 8080808080808080 R09: ff38db4f04f33120
[    2.668881] R10: ff5f6cfe405ff900 R11: fefefefefefefeff R12: ff38db4f06520f00
[    2.668916] R13: ff38db4f03142a80 R14: 0000000000000411 R15: 0000000000000000
[    2.668958] FS:  00007f1d4c72f400(0000) GS:ff38db4fab1b4000(0000) knlGS:0000000000000000
[    2.669009] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.669052] CR2: 0000000000000054 CR3: 0000000006488005 CR4: 0000000000771ef0
[    2.669092] PKRU: 55555554
[    2.669108] Call Trace:
[    2.669121]  <TASK>
[    2.669138]  l2tp_nl_cmd_session_create+0x204/0x470 [l2tp_netlink]
[    2.669180]  genl_family_rcv_msg_doit+0xf8/0x150
[    2.669215]  genl_rcv_msg+0x1a6/0x2a0
[    2.669239]  ? l2tp_session_notify.constprop.0+0xa0/0xa0 [l2tp_netlink]
[    2.669272]  ? genl_family_rcv_msg_dumpit+0x100/0x100
[    2.669299]  netlink_rcv_skb+0x59/0x100
[    2.669321]  genl_rcv+0x28/0x40
[    2.669343]  netlink_unicast+0x255/0x380
[    2.669366]  netlink_sendmsg+0x1cc/0x3e0
[    2.669387]  ____sys_sendmsg+0x164/0x260
[    2.669413]  ___sys_sendmsg+0x99/0xe0
[    2.669437]  __sys_sendmsg+0x8a/0xe0
[    2.669462]  do_syscall_64+0x101/0xfc0
[    2.669486]  ? exc_page_fault+0x6e/0x170
[    2.669509]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.669540] RIP: 0033:0x7f1d4c889c5e
[    2.669564] Code: 4d 89 d8 e8 34 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 13 ff ff ff 0f 1f 00 f3 0f 1e fa
[    2.669667] RSP: 002b:00007fff5ff17550 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.669716] RAX: ffffffffffffffda RBX: 00007fff5ff17910 RCX: 00007f1d4c889c5e
[    2.669755] RDX: 0000000000000000 RSI: 00007fff5ff17610 RDI: 0000000000000006
[    2.669799] RBP: 00007fff5ff17560 R08: 0000000000000000 R09: 0000000000000000
[    2.669842] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[    2.669881] R13: 0000000069a2e0df R14: 000000000000000b R15: 00000000004a3d00
[    2.669924]  </TASK>
[    2.669939] Modules linked in: l2tp_eth l2tp_ip l2tp_netlink l2tp_core
[    2.669971] CR2: 0000000000000054
[    2.669995] ---[ end trace 0000000000000000 ]---
[    2.670023] RIP: 0010:l2tp_eth_create+0xf2/0x300 [l2tp_eth]
[    2.670052] Code: 00 00 ff ff 00 00 48 89 85 18 02 00 00 41 8b 74 24 3c 85 f6 0f 84 a2 00 00 00 48 8b 53 20 0f b7 43 4a 4d 8b ac 24 b8 00 00 00 <8b> 4a 54 03 42 3c 31 d2 85 c9 0f 94 c2 44 8d 74 d0 0e e8 37 31 80
[    2.670140] RSP: 0018:ff5f6cfe405ff8f8 EFLAGS: 00010206
[    2.670168] RAX: 0000000000000008 RBX: ff38db4f012a5600 RCX: 0000000000000005
[    2.670217] RDX: 0000000000000000 RSI: 0000000000000014 RDI: 7f7f7fffffffffff
[    2.670259] RBP: ff38db4f04f33000 R08: 8080808080808080 R09: ff38db4f04f33120
[    2.670298] R10: ff5f6cfe405ff900 R11: fefefefefefefeff R12: ff38db4f06520f00
[    2.670339] R13: ff38db4f03142a80 R14: 0000000000000411 R15: 0000000000000000
[    2.670376] FS:  00007f1d4c72f400(0000) GS:ff38db4fab1b4000(0000) knlGS:0000000000000000
[    2.670416] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.670449] CR2: 0000000000000054 CR3: 0000000006488005 CR4: 0000000000771ef0
[    2.670497] PKRU: 55555554
[    2.670517] note: ip[280] exited with irqs disabled
[    2.670613] ip (280) used greatest stack depth: 12048 bytes left