Kernel panic (docker + 3.13)

syslog

[16314069.877834] BUG: unable to handle kernel paging request at ffffc900029fdb58
[16314069.877857] IP: [<ffffffffa0289200>] nf_nat_cleanup_conntrack+0x40/0x70 [nf_nat]
[16314069.877870] PGD 1b6426067 PUD 1b6427067 PMD 1019e5067 PTE 0
[16314069.877879] Oops: 0002 [#1] SMP 
[16314069.877886] Modules linked in: nf_conntrack_netlink nfnetlink veth xt_addrtype xt_conntrack xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat xt_tcpudp iptable_filter ip_tables x_tables nfsd auth_rpcgss nfs_acl aufs nfs lockd sunrpc bridge fscache 8021q garp stp mrp llc intel_rapl crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd nf_conntrack_ipv4 nf_defrag_ipv4 nf_conntrack xen_kbdfront xen_fbfront syscopyarea sysfillrect sysimgblt fb_sys_fops raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq [last unloaded: ipmi_devintf]
[16314069.877968] CPU: 2 PID: 97 Comm: kworker/u16:1 Not tainted 3.13.0-18-generic #38-Ubuntu
[16314069.877982] Workqueue: netns cleanup_net
[16314069.877987] task: ffff8801affd17f0 ti: ffff8801affc4000 task.ti: ffff8801affc4000
[16314069.877994] RIP: e030:[<ffffffffa0289200>]  [<ffffffffa0289200>] nf_nat_cleanup_conntrack+0x40/0x70 [nf_nat]
[16314069.878005] RSP: e02b:ffff8801affc5cb8  EFLAGS: 00010246
[16314069.878010] RAX: 0000000000000000 RBX: ffff880004a5ce08 RCX: ffff8800b5a8e988
[16314069.878016] RDX: ffffc900029fdb58 RSI: 0000000037d437d2 RDI: ffffffffa028c4c0
[16314069.878022] RBP: ffff8801affc5cc0 R08: 0000000000000200 R09: 0000000000000000
[16314069.878029] R10: ffffea0005150940 R11: ffffffff812247fd R12: ffff880004a5cd80
[16314069.878035] R13: ffff8800d24e6750 R14: ffff8800d24e6758 R15: ffff8800b5a8e000
[16314069.878046] FS:  00007f8a03029700(0000) GS:ffff8801bec80000(0000) knlGS:0000000000000000
[16314069.878052] CS:  e033 DS: 0000 ES: 0000 CR0: 000000008005003b
[16314069.878057] CR2: ffffc900029fdb58 CR3: 00000000d702a000 CR4: 0000000000002660
[16314069.878064] Stack:
[16314069.878068]  0000000000000001 ffff8801affc5ce8 ffffffffa00995a4 ffff8800d24e6750
[16314069.878078]  ffff8800b5a8e000 ffffffffa007e2c0 ffff8801affc5d08 ffffffffa00912d5
[16314069.878088]  ffff8800d24e6750 ffff8800b5a8e000 ffff8801affc5d28 ffffffffa00927b4
[16314069.878097] Call Trace:
[16314069.878112]  [<ffffffffa00995a4>] __nf_ct_ext_destroy+0x44/0x60 [nf_conntrack]
[16314069.878125]  [<ffffffffa00912d5>] nf_conntrack_free+0x25/0x60 [nf_conntrack]
[16314069.878136]  [<ffffffffa00927b4>] destroy_conntrack+0xb4/0x110 [nf_conntrack]
[16314069.878149]  [<ffffffffa0096260>] ? nf_conntrack_helper_fini+0x30/0x30 [nf_conntrack]
[16314069.878159]  [<ffffffff81645767>] nf_conntrack_destroy+0x17/0x20
[16314069.878170]  [<ffffffffa009223b>] nf_ct_iterate_cleanup+0x12b/0x150 [nf_conntrack]
[16314069.878183]  [<ffffffffa009653d>] nf_ct_l3proto_pernet_unregister+0x1d/0x20 [nf_conntrack]
[16314069.878194]  [<ffffffffa007c309>] ipv4_net_exit+0x19/0x50 [nf_conntrack_ipv4]
[16314069.878202]  [<ffffffff8160e549>] ops_exit_list.isra.1+0x39/0x60
[16314069.878210]  [<ffffffff8160edd0>] cleanup_net+0x110/0x250
[16314069.878221]  [<ffffffff810824a2>] process_one_work+0x182/0x450
[16314069.878228]  [<ffffffff81083241>] worker_thread+0x121/0x410
[16314069.878235]  [<ffffffff81083120>] ? rescuer_thread+0x3e0/0x3e0
[16314069.878243]  [<ffffffff81089ed2>] kthread+0xd2/0xf0
[16314069.878249]  [<ffffffff81089e00>] ? kthread_create_on_node+0x190/0x190
[16314069.878258]  [<ffffffff817219bc>] ret_from_fork+0x7c/0xb0
[16314069.878264]  [<ffffffff81089e00>] ? kthread_create_on_node+0x190/0x190
[16314069.878269] Code: 53 0f b6 58 11 84 db 74 45 48 01 c3 74 40 48 83 7b 10 00 74 39 48 c7 c7 c0 c4 28 a0 e8 3a fe 48 e1 48 8b 03 48 8b 53 08 48 85 c0 <48> 89 02 74 04 48 89 50 08 48 b8 00 02 20 00 00 00 ad de 48 c7 
[16314069.878332] RIP  [<ffffffffa0289200>] nf_nat_cleanup_conntrack+0x40/0x70 [nf_nat]
[16314069.878341]  RSP <ffff8801affc5cb8>
[16314069.878345] CR2: ffffc900029fdb58
[16314069.878353] ---[ end trace 98cfb73f60c69903 ]---