======================================
| [   37.740097][  T309] veth2: entered promiscuous mode
| [   45.225360][    C1] ------------[ cut here ]------------
| [   45.225806][    C1] kernel BUG at net/core/skbuff.c:2813!
| [   45.226075][    C1] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
[   45.226702][    C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 45.227203][ C1] RIP: 0010:__pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[ 45.227499][ C1] Code: e9 52 f7 ff ff 48 8b 7c 24 38 be 02 00 00 00 e8 8e 9c ff ff 48 83 c4 58 31 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 90 <0f> 0b 48 c7 44 24 38 00 00 00 00 e9 dc fa ff ff 84 c9 0f 84 4b f9
All code
========
   0:	e9 52 f7 ff ff       	jmp    0xfffffffffffff757
   5:	48 8b 7c 24 38       	mov    0x38(%rsp),%rdi
   a:	be 02 00 00 00       	mov    $0x2,%esi
   f:	e8 8e 9c ff ff       	call   0xffffffffffff9ca2
  14:	48 83 c4 58          	add    $0x58,%rsp
  18:	31 c0                	xor    %eax,%eax
  1a:	5b                   	pop    %rbx
  1b:	41 5c                	pop    %r12
  1d:	41 5d                	pop    %r13
  1f:	41 5e                	pop    %r14
  21:	41 5f                	pop    %r15
  23:	5d                   	pop    %rbp
  24:	c3                   	ret
  25:	cc                   	int3
  26:	cc                   	int3
  27:	cc                   	int3
  28:	cc                   	int3
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	48 c7 44 24 38 00 00 	movq   $0x0,0x38(%rsp)
  33:	00 00 
  35:	e9 dc fa ff ff       	jmp    0xfffffffffffffb16
  3a:	84 c9                	test   %cl,%cl
  3c:	0f                   	.byte 0xf
  3d:	84 4b f9             	test   %cl,-0x7(%rbx)

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	48 c7 44 24 38 00 00 	movq   $0x0,0x38(%rsp)
   9:	00 00 
   b:	e9 dc fa ff ff       	jmp    0xfffffffffffffaec
  10:	84 c9                	test   %cl,%cl
  12:	0f                   	.byte 0xf
  13:	84 4b f9             	test   %cl,-0x7(%rbx)
[   45.228283][    C1] RSP: 0018:ffffc900001c89c8 EFLAGS: 00010282
[   45.228560][    C1] RAX: 00000000fffffff2 RBX: ffff888003c93234 RCX: 0000000000000004
[   45.228887][    C1] RDX: dffffc0000000000 RSI: 1ffff110008b3301 RDI: ffff888004599808
[   45.229222][    C1] RBP: ffffc900001c8a48 R08: 0000000000000008 R09: ffff888003c9327c
[   45.229579][    C1] R10: ffff888003c93280 R11: 0000000000000000 R12: ffff888003c931c0
[   45.229932][    C1] R13: ffff8880045984a0 R14: 0000000000000001 R15: ffffffff96bcddb0
[   45.230272][    C1] FS:  00007fa696ce9300(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   45.230683][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.230973][    C1] CR2: 000000000041aad0 CR3: 0000000006020004 CR4: 0000000000770ef0
[   45.231328][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.231665][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.231996][    C1] PKRU: 55555554
[   45.232133][    C1] Call Trace:
[   45.232315][    C1]  <IRQ>
[ 45.232429][ C1] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) 
[ 45.232611][ C1] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) 
[ 45.232780][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[ 45.233021][ C1] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) 
[ 45.233246][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[ 45.233477][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[ 45.233718][ C1] ? handle_invalid_op (arch/x86/kernel/traps.c:213) 
[ 45.233958][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[ 45.234193][ C1] ? exc_invalid_op (arch/x86/kernel/traps.c:265) 
[ 45.234427][ C1] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) 
[ 45.234677][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813 (discriminator 1)) 
[ 45.234929][ C1] ? __pskb_pull_tail (net/core/skbuff.c:2813) 
[ 45.235168][ C1] ? raw_v4_input (net/ipv4/raw.c:165) 
[ 45.235416][ C1] icmp_rcv (./include/linux/skbuff.h:2731 ./include/linux/skbuff.h:2739 ./include/linux/skbuff.h:2744 net/ipv4/icmp.c:1216) 
[ 45.235606][ C1] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205 (discriminator 5)) 
[ 45.235855][ C1] ip_local_deliver_finish (./include/linux/rcupdate.h:779 net/ipv4/ip_input.c:234) 
[ 45.236099][ C1] ip_local_deliver (./include/linux/netfilter.h:314 ./include/linux/netfilter.h:308 net/ipv4/ip_input.c:254) 
[ 45.236338][ C1] ? __pfx_ip_local_deliver (net/ipv4/ip_input.c:243) 
[ 45.236572][ C1] ? ip_rcv_finish_core.constprop.0 (./include/net/net_namespace.h:383 ./include/linux/netdevice.h:2654 net/ipv4/ip_input.c:372) 
[ 45.236834][ C1] 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) 
[ 45.237004][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 45.237221][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 45.237449][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) 
[ 45.237685][ C1] ? __pfx_ip_rcv (net/ipv4/ip_input.c:562) 
[ 45.237906][ C1] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 4)) 
[ 45.238197][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603) 
[ 45.238500][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 45.238724][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) 
[ 45.238958][ C1] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) 
[ 45.239187][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 45.239421][ C1] __napi_poll.constprop.0 (net/core/dev.c:6703) 
[ 45.239658][ C1] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) 
[ 45.239888][ C1] ? __pfx_net_rx_action (net/core/dev.c:6850) 
[ 45.240128][ C1] ? hlock_class (kernel/locking/lockdep.c:223) 
[ 45.240359][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 45.240598][ C1] __do_softirq (kernel/softirq.c:553) 
[ 45.240821][ C1] ? netif_rx (./include/linux/bottom_half.h:33 net/core/dev.c:5195 net/core/dev.c:5184) 
[ 45.240933][ C1] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) 
[   45.241056][    C1]  </IRQ>
[   45.241130][    C1]  <TASK>
[ 45.241203][ C1] __local_bh_enable_ip (kernel/softirq.c:381) 
[ 45.241350][ C1] netif_rx (net/core/dev.c:5197) 
[ 45.241458][ C1] dev_loopback_xmit (net/core/dev.c:3910) 
[ 45.241604][ C1] ip_mc_finish_output (net/ipv4/ip_output.c:363) 
[ 45.241753][ C1] ip_mc_output (./include/linux/netfilter.h:315 ./include/linux/netfilter.h:308 net/ipv4/ip_output.c:399) 
[ 45.241897][ C1] ip_push_pending_frames (./include/net/dst.h:450 ./include/net/dst.h:448 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:1496 net/ipv4/ip_output.c:1516) 
[ 45.242048][ C1] raw_sendmsg (net/ipv4/raw.c:648) 
[ 45.242192][ C1] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 45.242339][ C1] ? __pfx_raw_sendmsg (net/ipv4/raw.c:476) 
[ 45.242484][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 45.242632][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 45.242785][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 45.242943][ C1] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 45.243102][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 45.243249][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 45.243391][ C1] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 45.243535][ C1] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 45.243696][ C1] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) 
[ 45.243928][ C1] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) 
[ 45.244162][ C1] ? __pfx___sys_sendto (net/socket.c:2161) 
[ 45.244406][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 45.244647][ C1] ? do_user_addr_fault (arch/x86/mm/fault.c:1436) 
[ 45.244898][ C1] ? __up_read (./arch/x86/include/asm/atomic64_64.h:79 ./include/linux/atomic/atomic-arch-fallback.h:2735 ./include/linux/atomic/atomic-long.h:184 ./include/linux/atomic/atomic-instrumented.h:3289 kernel/locking/rwsem.c:1347) 
[ 45.245137][ C1] ? __pfx_find_vma (mm/mmap.c:1883) 
[ 45.245371][ C1] ? __pfx___up_read (kernel/locking/rwsem.c:1339) 
[ 45.245601][ C1] ? do_user_addr_fault (arch/x86/mm/fault.c:1436) 
[ 45.245821][ C1] __x64_sys_sendto (net/socket.c:2199) 
[ 45.246039][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 45.246292][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.246483][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[   45.246784][    C1] RIP: 0033:0x7fa696fbf85a
[ 45.247025][ C1] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   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 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   45.247828][    C1] RSP: 002b:00007ffd714bff78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.248150][    C1] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007fa696fbf85a
[   45.248522][    C1] RDX: 0000000000000040 RSI: 0000000000747340 RDI: 0000000000000005
[   45.248878][    C1] RBP: 00007ffd714bffd0 R08: 00000000004185e0 R09: 0000000000000010
[   45.249236][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000054


Finger prints:
__pskb_pull_tail:icmp_rcv:ip_protocol_deliver_rcu:ip_local_deliver_finish