Docker/Mailcow Kernel Panic - Ubuntu 18.04.3 - Fully updated NO APPAMOUR - kernel 4.15.0-60-generic #67-Ubuntu SMP Thu Aug 22 16:55:30 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

gistfile1.txt

[  154.022247] kernel BUG at /build/linux-5mCauq/linux-4.15.0/net/ipv4/ip_output.c:636!
[  154.027438] invalid opcode: 0000 [#1] SMP NOPTI
[  154.029350] Modules linked in: ip6t_MASQUERADE nf_nat_masquerade_ipv6 ip6table_security ip6table_raw ip6table_mangle iptable_security iptable_raw iptable_mangle ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_filter ip6_tables nf_tables_ipv4 nf_tables veth xt_nat xt_tcpudp ipt_MASQUERADE nf_nat_masquerade_ipv4 nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 xt_addrtype iptable_filter xt_conntrack nf_nat nf_conntrack br_netfilter bridge stp llc aufs overlay nls_iso8859_1 kvm_amd kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel joydev input_leds serio_raw qemu_fw_cfg mac_hid sch_fq_codel ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi ip_tables x_tables autofs4 btrfs
[  154.060284]  zstd_compress raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0 multipath linear aesni_intel aes_x86_64 crypto_simd cryptd glue_helper virtio_blk pata_acpi psmouse virtio_net virtio_scsi i2c_piix4 floppy
[  154.067589] CPU: 0 PID: 5726 Comm: python3 Not tainted 4.15.0-60-generic #67-Ubuntu
[  154.069175] Hardware name: Scaleway Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015
[  154.070905] RIP: 0010:ip_do_fragment+0x482/0x820
[  154.071940] RSP: 0000:ffff8fa93fc039d8 EFLAGS: 00010202
[  154.073019] RAX: 0000000000000001 RBX: ffff8fa930f56900 RCX: ffffffff8944cdf0
[  154.074676] RDX: 0000000000000024 RSI: 00000000000005c8 RDI: ffff8fa892612e00
[  154.076154] RBP: ffff8fa93fc03a40 R08: ffff8fa936f91a00 R09: 00000000000005dc
[  154.077748] R10: 0000000000000000 R11: ffff8fa92f815000 R12: 0000000000000014
[  154.079158] R13: ffff8fa892612100 R14: 0000000000000ea2 R15: ffff8fa936f91a4e
[  154.080665] FS:  00007fcaa5683b20(0000) GS:ffff8fa93fc00000(0000) knlGS:0000000000000000
[  154.082467] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  154.083620] CR2: 00007fa110000010 CR3: 00000001344ae000 CR4: 00000000003406f0
[  154.085250] Call Trace:
[  154.085770]  <IRQ>
[  154.086201]  ? ip_copy_metadata+0x220/0x220
[  154.087059]  ip_fragment.constprop.45+0x43/0x80
[  154.087979]  ip_finish_output+0x182/0x270
[  154.088829]  ? nf_hook_slow+0x48/0xc0
[  154.089656]  ip_output+0x70/0xe0
[  154.090334]  ? ip_fragment.constprop.45+0x80/0x80
[  154.091299]  ip_forward_finish+0x51/0x80
[  154.092204]  ip_forward+0x376/0x470
[  154.092930]  ? ip4_key_hashfn+0xc0/0xc0
[  154.093714]  ip_rcv_finish+0x129/0x430
[  154.094504]  ip_rcv+0x296/0x360
[  154.095167]  ? inet_del_offload+0x40/0x40
[  154.095988]  __netif_receive_skb_core+0x432/0xb80
[  154.096965]  ? __update_load_avg_se.isra.37+0x1c0/0x1d0
[  154.098003]  ? kmem_cache_alloc+0x158/0x1b0
[  154.098784]  ? __build_skb+0x2b/0xf0
[  154.099529]  __netif_receive_skb+0x18/0x60
[  154.100518]  ? __netif_receive_skb+0x18/0x60
[  154.101716]  netif_receive_skb_internal+0x45/0xe0
[  154.102995]  napi_gro_receive+0xc5/0xf0
[  154.104247]  receive_buf+0x402/0x1500 [virtio_net]
[  154.105527]  ? kvm_clock_get_cycles+0x1e/0x20
[  154.106458]  ? lapic_next_deadline+0x26/0x30
[  154.107352]  ? vring_unmap_one+0x1b/0x80
[  154.108157]  ? detach_buf+0x71/0x120
[  154.109195]  virtnet_poll+0x152/0x2bd [virtio_net]
[  154.110231]  net_rx_action+0x140/0x3a0
[  154.111002]  __do_softirq+0xe4/0x2d4
[  154.111738]  irq_exit+0xc5/0xd0
[  154.112482]  do_IRQ+0x86/0xe0
[  154.113134]  common_interrupt+0x8c/0x8c
[  154.113908]  </IRQ>
[  154.114359] RIP: 0033:0x7fcaa6d08356
[  154.115088] RSP: 002b:00007fcaa5680290 EFLAGS: 00000202 ORIG_RAX: ffffffffffffffdc
[  154.116594] RAX: 00007fcaa5517f08 RBX: 00007fcaa550ed98 RCX: 0000000000000000
[  154.118112] RDX: 00007fcaa56801e0 RSI: 0000000000000000 RDI: 00007fcaa6d824f1
[  154.119549] RBP: 000000000000000b R08: 0000000000000000 R09: 0000000000000001
[  154.121499] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[  154.122948] R13: 00007fcaa6e5e7c0 R14: 0000000000000000 R15: 0000000000000000
[  154.124546] Code: 8b 87 d8 00 00 00 48 2b 87 d0 00 00 00 39 c2 0f 87 f4 00 00 00 8b 87 e4 00 00 00 83 f8 01 0f 85 e5 00 00 00 48 83 7f 18 00 74 8e <0f> 0b 8b 0a 89 08 44 89 e1 8b 54 0a fc 89 54 08 fc e9 00 fd ff 
[  154.128560] RIP: ip_do_fragment+0x482/0x820 RSP: ffff8fa93fc039d8
[  154.130096] ---[ end trace 352294912277ddce ]---
[  154.141965] Kernel panic - not syncing: Fatal exception in interrupt
[  154.144785] Kernel Offset: 0x7c00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[  154.147724] ---[ end Kernel panic - not syncing: Fatal exception in interrupt

Has the same issue with Ubuntu 18.04, the latest Docker from docker.com and kernel 4.15.0-60. No issue with 4.15.0-58, reverted back to this one.