======================================
| [   29.374755][  T264] ip_gre: GRE over IPv4 tunneling driver
| [   29.798137][    C0] ------------[ cut here ]------------
| [   29.798418][    C0] kernel BUG at net/core/skbuff.c:3505!
| [   29.798603][    C0] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   29.799057][    C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   29.799423][    C0] Workqueue: mld mld_ifc_work
[ 29.799594][ C0] RIP: 0010:__skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 29.799762][ C0] Code: 44 89 14 24 ff d0 0f 1f 00 4c 8b 44 24 08 44 8b 14 24 41 89 c1 eb a5 89 e8 e9 2d fe ff ff 41 ff d5 0f 1f 00 e9 1f fa ff ff 90 <0f> 0b 48 8b 7c 24 10 89 54 24 48 48 89 44 24 40 e8 e7 53 8d fe 8b
All code
========
   0:	44 89 14 24          	mov    %r10d,(%rsp)
   4:	ff d0                	call   *%rax
   6:	0f 1f 00             	nopl   (%rax)
   9:	4c 8b 44 24 08       	mov    0x8(%rsp),%r8
   e:	44 8b 14 24          	mov    (%rsp),%r10d
  12:	41 89 c1             	mov    %eax,%r9d
  15:	eb a5                	jmp    0xffffffffffffffbc
  17:	89 e8                	mov    %ebp,%eax
  19:	e9 2d fe ff ff       	jmp    0xfffffffffffffe4b
  1e:	41 ff d5             	call   *%r13
  21:	0f 1f 00             	nopl   (%rax)
  24:	e9 1f fa ff ff       	jmp    0xfffffffffffffa48
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	48 8b 7c 24 10       	mov    0x10(%rsp),%rdi
  31:	89 54 24 48          	mov    %edx,0x48(%rsp)
  35:	48 89 44 24 40       	mov    %rax,0x40(%rsp)
  3a:	e8 e7 53 8d fe       	call   0xfffffffffe8d5426
  3f:	8b                   	.byte 0x8b

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	48 8b 7c 24 10       	mov    0x10(%rsp),%rdi
   7:	89 54 24 48          	mov    %edx,0x48(%rsp)
   b:	48 89 44 24 40       	mov    %rax,0x40(%rsp)
  10:	e8 e7 53 8d fe       	call   0xfffffffffe8d53fc
  15:	8b                   	.byte 0x8b
[   29.800326][    C0] RSP: 0018:ffffc90000007920 EFLAGS: 00010206
[   29.800527][    C0] RAX: 00000000000048c1 RBX: 0000000000000008 RCX: 1ffff11000a58641
[   29.800785][    C0] RDX: 0000000000000072 RSI: dffffc0000000000 RDI: ffff8880052c3208
[   29.801031][    C0] RBP: 00000000000048c1 R08: 0000000000000008 R09: fffffbfff5b2a5a2
[   29.801274][    C0] R10: ffffffffad952d17 R11: ffffffffab30dbc4 R12: 0000000000000008
[   29.801513][    C0] R13: 0000000000000000 R14: ffffc900000079e0 R15: ffff8880059b0ec8
[   29.801754][    C0] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   29.802035][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.802240][    C0] CR2: 000055a348ce0dc0 CR3: 00000000081e0003 CR4: 0000000000770ef0
[   29.802587][    C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   29.802908][    C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   29.803251][    C0] PKRU: 55555554
[   29.803399][    C0] Call Trace:
[   29.803582][    C0]  <IRQ>
[ 29.803710][ C0] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) 
[ 29.803899][ C0] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) 
[ 29.804081][ C0] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 29.804327][ C0] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) 
[ 29.804575][ C0] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 29.804820][ C0] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 29.805069][ C0] ? handle_invalid_op (arch/x86/kernel/traps.c:213) 
[ 29.805308][ C0] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 29.805550][ C0] ? exc_invalid_op (arch/x86/kernel/traps.c:265) 
[ 29.805803][ C0] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) 
[ 29.806043][ C0] ? dst_init (net/core/dst.c:53) 
[ 29.806239][ C0] ? __skb_checksum (net/core/skbuff.c:3505 (discriminator 1)) 
[ 29.806508][ C0] __skb_checksum_complete (net/core/skbuff.c:3643) 
[ 29.806757][ C0] ? __pfx___skb_checksum_complete (net/core/skbuff.c:3637) 
[ 29.807057][ C0] ? __pfx_csum_partial_ext (./include/net/checksum.h:120) 
[ 29.807312][ C0] ? __pfx_csum_block_add_ext (./include/net/checksum.h:103) 
[ 29.807562][ C0] icmp_rcv (./include/linux/skbuff.h:4567 net/ipv4/icmp.c:1213) 
[ 29.807745][ C0] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 29.807976][ C0] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 29.808217][ C0] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 29.808457][ C0] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 29.808699][ C0] ? ip_rcv_finish_core.constprop.0 (net/ipv4/ip_input.c:367) 
[ 29.808997][ C0] ip_rcv (./include/net/dst.h:460 net/ipv4/ip_input.c:449 ./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:569) 
[ 29.809179][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 29.809424][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 29.809668][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) 
[ 29.809904][ C0] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 29.810144][ C0] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4)) 
[ 29.810443][ C0] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603) 
[ 29.810733][ C0] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 29.810970][ C0] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) 
[ 29.811207][ C0] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) 
[ 29.811443][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 29.811676][ C0] __napi_poll.constprop.0 (net/core/dev.c:6703) 
[ 29.811930][ C0] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) 
[ 29.812173][ C0] ? __pfx_net_rx_action (net/core/dev.c:6850) 
[ 29.812413][ C0] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263) 
[ 29.812648][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 29.813035][ C0] ? hrtimer_interrupt (kernel/time/hrtimer.c:1828) 
[ 29.813281][ C0] __do_softirq (kernel/softirq.c:553) 
[ 29.813508][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4399) 
[ 29.813746][ C0] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) 
[   29.813927][    C0]  </IRQ>
[   29.814222][    C0]  <TASK>
[ 29.814337][ C0] __local_bh_enable_ip (kernel/softirq.c:381) 
[ 29.814570][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:818 net/core/dev.c:4399) 
[ 29.814806][ C0] __dev_queue_xmit (net/core/dev.c:4400) 
[ 29.815036][ C0] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 29.815265][ C0] ? eth_header (net/ethernet/eth.c:100) 
[ 29.815660][ C0] ? __pfx___dev_queue_xmit (net/core/dev.c:4281) 
[ 29.815889][ C0] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543) 
[ 29.816134][ C0] ip6_finish_output2 (./include/net/neighbour.h:542 net/ipv6/ip6_output.c:137) 
[ 29.816548][ C0] ip6_finish_output (net/ipv6/ip6_output.c:211 net/ipv6/ip6_output.c:222) 
[ 29.816778][ C0] ip6_output (./include/linux/netfilter.h:303 net/ipv6/ip6_output.c:243) 
[ 29.816960][ C0] ? __pfx_ip6_output (net/ipv6/ip6_output.c:230) 
[ 29.817180][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 29.817448][ C0] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 29.817871][ C0] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 29.818122][ C0] ? icmp6_dst_alloc (net/ipv6/route.c:3293) 
[ 29.818382][ C0] NF_HOOK.constprop.0 (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 ./include/linux/netfilter.h:238 ./include/linux/netfilter.h:312) 
[ 29.818634][ C0] ? __pfx_NF_HOOK.constprop.0 (./include/linux/netfilter.h:308) 
[ 29.818874][ C0] ? __pfx_xfrm_lookup_with_ifid (net/xfrm/xfrm_policy.c:3133) 
[ 29.819183][ C0] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 29.819465][ C0] ? icmp6_dst_alloc (net/ipv6/route.c:3293) 
[ 29.819693][ C0] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386) 
[ 29.819927][ C0] mld_sendpack (net/ipv6/mcast.c:1822) 
[ 29.820166][ C0] ? __pfx_mld_sendpack (net/ipv6/mcast.c:1779) 
[ 29.820551][ C0] ? mld_send_cr (net/ipv6/mcast.c:2096 (discriminator 11)) 
[ 29.820780][ C0] mld_ifc_work (net/ipv6/mcast.c:2652) 
[ 29.821008][ C0] process_one_work (kernel/workqueue.c:2633) 
[ 29.821237][ C0] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) 
[ 29.821617][ C0] ? __pfx_process_one_work (kernel/workqueue.c:2542) 
[ 29.821846][ C0] ? assign_work (kernel/workqueue.c:1101) 
[ 29.822072][ C0] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) 
[ 29.822301][ C0] ? __pfx_worker_thread (kernel/workqueue.c:2733) 
[ 29.822528][ C0] kthread (kernel/kthread.c:388) 
[ 29.822850][ C0] ? __pfx_kthread (kernel/kthread.c:341) 
[ 29.823077][ C0] ret_from_fork (arch/x86/kernel/process.c:147) 
[ 29.823305][ C0] ? __pfx_kthread (kernel/kthread.c:341) 


Finger prints:
__skb_checksum:__skb_checksum_complete:icmp_rcv:ip_protocol_deliver_rcu