======================================
| [   17.969538] veth0: renamed from veth-hv-2
| [   18.019159] ------------[ cut here ]------------
| [   18.019209] kernel BUG at net/core/skbuff.c:3605!
| [   18.019247] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI
[   18.019324] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   18.019386] RIP: 0010:skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) 
[ 18.019425] Code: 89 6c 24 0c 41 89 c4 0f 84 1d ff ff ff 45 01 fe 49 63 c7 44 89 74 24 08 49 01 c5 e9 d0 fd ff ff 90 0f 0b 90 e9 3d ff ff ff 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
All code
========
   0:	89 6c 24 0c          	mov    %ebp,0xc(%rsp)
   4:	41 89 c4             	mov    %eax,%r12d
   7:	0f 84 1d ff ff ff    	je     0xffffffffffffff2a
   d:	45 01 fe             	add    %r15d,%r14d
  10:	49 63 c7             	movslq %r15d,%rax
  13:	44 89 74 24 08       	mov    %r14d,0x8(%rsp)
  18:	49 01 c5             	add    %rax,%r13
  1b:	e9 d0 fd ff ff       	jmp    0xfffffffffffffdf0
  20:	90                   	nop
  21:	0f 0b                	ud2
  23:	90                   	nop
  24:	e9 3d ff ff ff       	jmp    0xffffffffffffff66
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  31:	90                   	nop
  32:	90                   	nop
  33:	90                   	nop
  34:	90                   	nop
  35:	90                   	nop
  36:	90                   	nop
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   7:	90                   	nop
   8:	90                   	nop
   9:	90                   	nop
   a:	90                   	nop
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[   18.019518] RSP: 0018:ffffb0a400140a98 EFLAGS: 00010202
[   18.019551] RAX: 000000000000001a RBX: 0000000000000008 RCX: 0000000000000000
[   18.019595] RDX: 000000000000001c RSI: ffff96ed425bf408 RDI: 0000000000000000
[   18.019637] RBP: 000000000000001a R08: 0000000000000000 R09: ffff96ed425bef40
[   18.019680] R10: 0000000000000018 R11: 0000000000000036 R12: 000000000880f84e
[   18.019723] R13: ffff96ed425bf408 R14: 0000000000000008 R15: 000000000000001c
[   18.019767] FS:  00007fbe09bdd300(0000) GS:ffff96ed7ed80000(0000) knlGS:0000000000000000
[   18.019810] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.019845] CR2: 00007fbe09ed7d60 CR3: 0000000004c70005 CR4: 0000000000770ef0
[   18.019890] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   18.019931] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   18.019974] PKRU: 55555554
[   18.019992] Call Trace:
[   18.020009]  <IRQ>
[   18.020028] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) 
[   18.020058] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) 
[   18.020084] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) 
[   18.020115] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) 
[   18.020139] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) 
[   18.020173] ? exc_invalid_op (arch/x86/kernel/traps.c:265) 
[   18.020202] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) 
[   18.020237] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) 
[   18.020265] ? skb_copy_and_csum_bits (net/core/skbuff.c:3605 (discriminator 1)) 
[   18.020295] ? skb_copy_and_csum_bits (net/core/skbuff.c:3540) 
[   18.020326] icmp_glue_bits (./include/linux/bitops.h:136 ./include/net/checksum.h:90 ./include/net/checksum.h:98 net/ipv4/icmp.c:357) 
[   18.020356] __ip_append_data (net/ipv4/ip_output.c:1166 (discriminator 1)) 
[   18.020384] ? __pfx_icmp_glue_bits (net/ipv4/icmp.c:349) 
[   18.020416] ? __pfx_icmp_glue_bits (net/ipv4/icmp.c:349) 
[   18.020446] ip_append_data (net/ipv4/ip_output.c:1368 net/ipv4/ip_output.c:1347) 
[   18.020473] icmp_push_reply (net/ipv4/icmp.c:370) 
[   18.020498] __icmp_send (./include/net/route.h:249 net/ipv4/icmp.c:772) 
[   18.020524] ? __udp4_lib_lookup (net/ipv4/udp.c:513) 
[   18.020553] ? __udp4_lib_rcv (net/ipv4/udp.c:2441 (discriminator 118)) 
[   18.020577] __udp4_lib_rcv (net/ipv4/udp.c:2441 (discriminator 118)) 
[   18.020602] ? raw_local_deliver (net/ipv4/raw.c:199) 
[   18.020626] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 4)) 
[   18.020657] ip_local_deliver_finish (./include/linux/rcupdate.h:782 net/ipv4/ip_input.c:234) 
[   18.020687] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4)) 
[   18.020719] process_backlog (./include/linux/rcupdate.h:782 net/core/dev.c:6053) 
[   18.020742] __napi_poll (net/core/dev.c:6703) 
[   18.020768] net_rx_action (net/core/dev.c:6774 net/core/dev.c:6886) 
[   18.020791] __do_softirq (kernel/softirq.c:553) 
[   18.020817] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) 
[   18.020843]  </IRQ>
[   18.020861]  <TASK>
[   18.020879] __local_bh_enable_ip (kernel/softirq.c:381) 
[   18.020903] __dev_queue_xmit (net/core/dev.c:4400) 
[   18.020927] ? eth_header (net/ethernet/eth.c:85) 
[   18.020957] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) 
[   18.020981] ip_send_skb (./include/net/dst.h:450 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:1496) 
[   18.021008] udp_send_skb (net/ipv4/udp.c:964) 
[   18.021035] udp_sendmsg (net/ipv4/udp.c:1250) 
[   18.021060] ? p9_check_errors (net/9p/client.c:479 net/9p/client.c:525) 
[   18.021089] ? __pfx_ip_generic_getfrag (net/ipv4/ip_output.c:935) 
[   18.021122] ? chacha_block_generic (lib/crypto/chacha.c:83) 
[   18.021156] ? ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) 
[   18.021183] ____sys_sendmsg (net/socket.c:730 net/socket.c:745 net/socket.c:2584) 
[   18.021210] ? copy_msghdr_from_user (net/socket.c:2524) 
[   18.021241] ___sys_sendmsg (net/socket.c:2640) 
[   18.021267] ? __ip_dev_find (net/ipv4/devinet.c:180) 
[   18.021289] ? kmem_cache_alloc (mm/slub.c:3843 mm/slub.c:3867) 
[   18.021316] ? fib_table_lookup (net/ipv4/fib_trie.c:1620) 
[   18.021341] ? rt_set_nexthop.constprop.0 (net/ipv4/route.c:1606) 
[   18.021371] ? ip_route_output_key_hash_rcu (net/ipv4/route.c:2572 net/ipv4/route.c:2815) 
[   18.021402] __sys_sendmmsg (net/socket.c:2724) 
[   18.021427] ? __sys_connect (net/socket.c:2048 net/socket.c:2065) 
[   18.021451] __x64_sys_sendmmsg (net/socket.c:2753 net/socket.c:2750 net/socket.c:2750) 
[   18.021474] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[   18.021501] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   18.021541] RIP: 0033:0x7fbe09eb3c1a
[ 18.021563] Code: ff eb bd 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 33 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5e c3 0f 1f 44 00 00 48 83 ec 28 89 54 24 18
All code
========
   0:	ff                   	(bad)
   1:	eb bd                	jmp    0xffffffffffffffc0
   3:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   a:	00 00 00 
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 33 01 00 00       	mov    $0x133,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 5e                	ja     0x90
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	48 83 ec 28          	sub    $0x28,%rsp
  3c:	89 54 24 18          	mov    %edx,0x18(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 5e                	ja     0x66
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	48 83 ec 28          	sub    $0x28,%rsp
  12:	89 54 24 18          	mov    %edx,0x18(%rsp)
[   18.021656] RSP: 002b:00007ffd9f4bd4e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
[   18.021699] RAX: ffffffffffffffda RBX: 000000000000001a RCX: 00007fbe09eb3c1a
[   18.021742] RDX: 0000000000000002 RSI: 00007ffd9f4bd640 RDI: 0000000000000007
[   18.021785] RBP: 00000000099483f7 R08: 0000000000000007 R09: 00007ffd9f592080
[   18.021828] R10: 0000000000004000 R11: 0000000000000246 R12: 00007ffd9f4bd5e0


Finger prints:
skb_copy_and_csum_bits:icmp_glue_bits:__ip_append_data:ip_append_data