[    2.480249] ip (223) used greatest stack depth: 12296 bytes left
[    2.498978] ip (228) used greatest stack depth: 12256 bytes left
[    2.627100] eth1: renamed from tmp
[    2.657103] eth2: renamed from tmp
[    2.690544] l2tp_core: L2TP core driver, V2.0
[    2.691953] l2tp_netlink: L2TP netlink interface
[    2.697621] l2tp_ip: L2TP IP encapsulation support (L2TPv3)
[    2.706403] l2tp_eth: L2TP ethernet pseudowire support (L2TPv3)
[    2.706665] BUG: kernel NULL pointer dereference, address: 0000000000000054
[    2.706712] #PF: supervisor read access in kernel mode
[    2.706738] #PF: error_code(0x0000) - not-present page
[    2.706764] PGD 4474067 P4D 5d26067 PUD 5d25067 PMD 0 
[    2.706795] Oops: Oops: 0000 [#1] SMP
[    2.706817] CPU: 2 UID: 0 PID: 280 Comm: ip Not tainted 7.0.0-rc1-virtme #1 PREEMPT(lazy) 
[    2.706855] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.706887] RIP: 0010:l2tp_eth_create+0xf2/0x300 [l2tp_eth]
[    2.706916] 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 60
[    2.706995] RSP: 0018:ff80e3718063f8f8 EFLAGS: 00010206
[    2.707020] RAX: 0000000000000008 RBX: ff3edc6bc1876400 RCX: 0000000000000005
[    2.707057] RDX: 0000000000000000 RSI: 0000000000000014 RDI: 7f7f7fffffffffff
[    2.707099] RBP: ff3edc6bc5d11000 R08: 8080808080808080 R09: ff3edc6bc5d11120
[    2.707136] R10: ff80e3718063f900 R11: fefefefefefefeff R12: ff3edc6bc45fcf00
[    2.707172] R13: ff3edc6bc30b1980 R14: 0000000000000411 R15: 0000000000000000
[    2.707213] FS:  00007f28c6107400(0000) GS:ff3edc6c512b4000(0000) knlGS:0000000000000000
[    2.707258] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.707302] CR2: 0000000000000054 CR3: 0000000004d4e005 CR4: 0000000000771ef0
[    2.707339] PKRU: 55555554
[    2.707353] Call Trace:
[    2.707369]  <TASK>
[    2.707385]  l2tp_nl_cmd_session_create+0x204/0x470 [l2tp_netlink]
[    2.707420]  genl_family_rcv_msg_doit+0xf8/0x150
[    2.707452]  genl_rcv_msg+0x1a6/0x2a0
[    2.707473]  ? l2tp_session_notify.constprop.0+0xa0/0xa0 [l2tp_netlink]
[    2.707504]  ? genl_family_rcv_msg_dumpit+0x100/0x100
[    2.707530]  netlink_rcv_skb+0x59/0x100
[    2.707551]  genl_rcv+0x28/0x40
[    2.707571]  netlink_unicast+0x255/0x380
[    2.707592]  netlink_sendmsg+0x1cc/0x3e0
[    2.707612]  ____sys_sendmsg+0x164/0x260
[    2.707635]  ___sys_sendmsg+0x99/0xe0
[    2.707656]  __sys_sendmsg+0x8a/0xe0
[    2.707680]  do_syscall_64+0x101/0xfc0
[    2.707704]  ? exc_page_fault+0x6e/0x170
[    2.707724]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.707753] RIP: 0033:0x7f28c6261c5e
[    2.707773] 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
[    2.707852] RSP: 002b:00007ffc98472800 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[    2.707888] RAX: ffffffffffffffda RBX: 00007ffc98472bc0 RCX: 00007f28c6261c5e
[    2.707924] RDX: 0000000000000000 RSI: 00007ffc984728c0 RDI: 0000000000000006
[    2.707960] RBP: 00007ffc98472810 R08: 0000000000000000 R09: 0000000000000000
[    2.707996] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000001
[    2.708032] R13: 0000000069a28c6a R14: 000000000000000b R15: 00000000004a3d00
[    2.708069]  </TASK>
[    2.708084] Modules linked in: l2tp_eth l2tp_ip l2tp_netlink l2tp_core
[    2.708116] CR2: 0000000000000054
[    2.708136] ---[ end trace 0000000000000000 ]---
[    2.708161] RIP: 0010:l2tp_eth_create+0xf2/0x300 [l2tp_eth]
[    2.708187] 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 60
[    2.708265] RSP: 0018:ff80e3718063f8f8 EFLAGS: 00010206
[    2.708294] RAX: 0000000000000008 RBX: ff3edc6bc1876400 RCX: 0000000000000005
[    2.708331] RDX: 0000000000000000 RSI: 0000000000000014 RDI: 7f7f7fffffffffff
[    2.708367] RBP: ff3edc6bc5d11000 R08: 8080808080808080 R09: ff3edc6bc5d11120
[    2.708403] R10: ff80e3718063f900 R11: fefefefefefefeff R12: ff3edc6bc45fcf00
[    2.708439] R13: ff3edc6bc30b1980 R14: 0000000000000411 R15: 0000000000000000
[    2.708477] FS:  00007f28c6107400(0000) GS:ff3edc6c512b4000(0000) knlGS:0000000000000000
[    2.708518] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.708549] CR2: 0000000000000054 CR3: 0000000004d4e005 CR4: 0000000000771ef0
[    2.708586] PKRU: 55555554
[    2.708601] note: ip[280] exited with irqs disabled
[    2.708732] ip (280) used greatest stack depth: 12048 bytes left