======================================
| [   41.749770][  T296] Initializing XFRM netlink socket
| [  270.494858][    C1] ------------[ cut here ]------------
| [  270.495152][    C1] kernel BUG at net/core/skbuff.c:5103!
| [  270.495343][    C1] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
[  270.495778][    C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 270.496161][ C1] RIP: 0010:__skb_to_sgvec (net/core/skbuff.c:5103 (discriminator 1)) 
[ 270.496340][ C1] Code: 00 0f 85 93 03 00 00 f6 02 02 0f 84 52 ff ff ff e9 73 fd ff ff 41 89 c3 e9 71 fd ff ff 45 89 e3 45 85 ff 0f 84 65 fd ff ff 90 <0f> 0b 44 89 4c 24 28 4c 89 54 24 18 44 89 5c 24 10 e8 97 93 8d fe
All code
========
   0:	00 0f                	add    %cl,(%rdi)
   2:	85 93 03 00 00 f6    	test   %edx,-0x9fffffd(%rbx)
   8:	02 02                	add    (%rdx),%al
   a:	0f 84 52 ff ff ff    	je     0xffffffffffffff62
  10:	e9 73 fd ff ff       	jmp    0xfffffffffffffd88
  15:	41 89 c3             	mov    %eax,%r11d
  18:	e9 71 fd ff ff       	jmp    0xfffffffffffffd8e
  1d:	45 89 e3             	mov    %r12d,%r11d
  20:	45 85 ff             	test   %r15d,%r15d
  23:	0f 84 65 fd ff ff    	je     0xfffffffffffffd8e
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	44 89 4c 24 28       	mov    %r9d,0x28(%rsp)
  31:	4c 89 54 24 18       	mov    %r10,0x18(%rsp)
  36:	44 89 5c 24 10       	mov    %r11d,0x10(%rsp)
  3b:	e8 97 93 8d fe       	call   0xfffffffffe8d93d7

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	44 89 4c 24 28       	mov    %r9d,0x28(%rsp)
   7:	4c 89 54 24 18       	mov    %r10,0x18(%rsp)
   c:	44 89 5c 24 10       	mov    %r11d,0x10(%rsp)
  11:	e8 97 93 8d fe       	call   0xfffffffffe8d93ad
[  270.496910][    C1] RSP: 0018:ffffc900001c86a8 EFLAGS: 00010202
[  270.497115][    C1] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000002
[  270.497354][    C1] RDX: 1ffff11000c519d9 RSI: 1ffff11000c519de RDI: ffff88800628cec8
[  270.497597][    C1] RBP: ffffea0000225c02 R08: 0000000000000040 R09: 0000000000000058
[  270.497839][    C1] R10: ffff888004700c80 R11: 0000000000000002 R12: 0000000000000058
[  270.498082][    C1] R13: dffffc0000000000 R14: 0000000000000018 R15: 0000000000000040
[  270.498322][    C1] FS:  00007ff9f601d300(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  270.498603][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  270.498804][    C1] CR2: 00007ff9f62ac840 CR3: 000000002d29c002 CR4: 0000000000770ef0
[  270.499049][    C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  270.499289][    C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  270.499528][    C1] PKRU: 55555554
[  270.499649][    C1] Call Trace:
[  270.499770][    C1]  <IRQ>
[ 270.499854][ C1] ? die (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:434 arch/x86/kernel/dumpstack.c:447) 
[ 270.499980][ C1] ? do_trap (arch/x86/kernel/traps.c:113 arch/x86/kernel/traps.c:154) 
[ 270.500101][ C1] ? __skb_to_sgvec (net/core/skbuff.c:5103 (discriminator 1)) 
[ 270.500263][ C1] ? do_error_trap (./arch/x86/include/asm/traps.h:58 arch/x86/kernel/traps.c:175) 
[ 270.500428][ C1] ? __skb_to_sgvec (net/core/skbuff.c:5103 (discriminator 1)) 
[ 270.500588][ C1] ? __skb_to_sgvec (net/core/skbuff.c:5103 (discriminator 1)) 
[ 270.500748][ C1] ? handle_invalid_op (arch/x86/kernel/traps.c:213) 
[ 270.500908][ C1] ? __skb_to_sgvec (net/core/skbuff.c:5103 (discriminator 1)) 
[ 270.501067][ C1] ? exc_invalid_op (arch/x86/kernel/traps.c:265) 
[ 270.501230][ C1] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) 
[ 270.501395][ C1] ? __skb_to_sgvec (net/core/skbuff.c:5103 (discriminator 1)) 
[ 270.501554][ C1] ? __skb_to_sgvec (./include/linux/scatterlist.h:189 net/core/skbuff.c:5050) 
[ 270.501714][ C1] ? kasan_save_track (./arch/x86/include/asm/current.h:42 mm/kasan/common.c:60 mm/kasan/common.c:69) 
[ 270.501879][ C1] ? __kasan_kmalloc (mm/kasan/common.c:391) 
[ 270.502040][ C1] skb_to_sgvec (net/core/skbuff.c:5123) 
[ 270.502162][ C1] esp_output_tail (net/ipv4/esp4.c:578) 
[ 270.502325][ C1] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 270.502489][ C1] esp_xmit (net/ipv4/esp4_offload.c:342) 
[ 270.502611][ C1] ? __pfx_esp_xmit (net/ipv4/esp4_offload.c:257) 
[ 270.502770][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 270.502929][ C1] validate_xmit_xfrm (net/xfrm/xfrm_device.c:184) 
[ 270.503093][ C1] __dev_queue_xmit (net/core/dev.c:4364) 
[ 270.503256][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 270.503416][ C1] ? eth_header (net/ethernet/eth.c:100) 
[ 270.503576][ C1] ? __pfx___dev_queue_xmit (net/core/dev.c:4281) 
[ 270.503735][ C1] ? neigh_resolve_output (./include/linux/netdevice.h:3226 net/core/neighbour.c:1558 net/core/neighbour.c:1543) 
[ 270.503896][ C1] ? __neigh_update (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/neighbour.c:1446) 
[ 270.504056][ C1] __neigh_update (net/core/neighbour.c:1461) 
[ 270.504218][ C1] arp_process (./include/linux/instrumented.h:96 (discriminator 4) ./include/linux/atomic/atomic-instrumented.h:400 (discriminator 4) ./include/linux/refcount.h:261 (discriminator 4) ./include/linux/refcount.h:304 (discriminator 4) ./include/linux/refcount.h:322 (discriminator 4) ./include/net/neighbour.h:444 (discriminator 4) net/ipv4/arp.c:934 (discriminator 4)) 
[ 270.504379][ C1] ? __pfx_arp_process (net/ipv4/arp.c:699) 
[ 270.504543][ C1] ? lock_acquire.part.0 (kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5756) 
[ 270.504705][ C1] ? __pfx_arp_rcv (net/ipv4/arp.c:965) 
[ 270.504863][ C1] __netif_receive_skb_one_core (net/core/dev.c:5610 (discriminator 5)) 
[ 270.505062][ C1] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5603) 
[ 270.505263][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 270.505422][ C1] ? process_backlog (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 net/core/dev.c:6051) 
[ 270.505583][ C1] process_backlog (./include/linux/rcupdate.h:779 net/core/dev.c:6053) 
[ 270.505744][ C1] __napi_poll.constprop.0 (net/core/dev.c:6703) 
[ 270.505905][ C1] net_rx_action (net/core/dev.c:6772 net/core/dev.c:6886) 
[ 270.506069][ C1] ? __pfx_net_rx_action (net/core/dev.c:6850) 
[ 270.506242][ C1] ? usage_skip (kernel/locking/lockdep.c:2295 kernel/locking/lockdep.c:2263) 
[ 270.506392][ C1] ? mark_held_locks (kernel/locking/lockdep.c:4274) 
[ 270.506540][ C1] __do_softirq (kernel/softirq.c:553) 
[ 270.506686][ C1] ? __neigh_event_send (./include/linux/bottom_half.h:33 net/core/neighbour.c:1245) 
[ 270.506834][ C1] do_softirq (kernel/softirq.c:454 kernel/softirq.c:441) 
[  270.506944][    C1]  </IRQ>
[  270.507020][    C1]  <TASK>
[ 270.507093][ C1] __local_bh_enable_ip (kernel/softirq.c:381) 
[ 270.507242][ C1] __neigh_event_send (./arch/x86/include/asm/jump_label.h:27 ./include/linux/jump_label.h:207 ./include/trace/events/neigh.h:237 net/core/neighbour.c:1246) 
[ 270.507392][ C1] neigh_resolve_output (net/core/neighbour.c:1547) 
[ 270.507537][ C1] ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:77 kernel/softirq.c:386) 
[ 270.507683][ C1] ? ___neigh_create (net/core/neighbour.c:722 (discriminator 9)) 
[ 270.507831][ C1] ip_finish_output2 (./include/net/neighbour.h:542 net/ipv4/ip_output.c:235) 
[ 270.507978][ C1] ? __pfx_get_random_u32 (drivers/char/random.c:532) 
[ 270.508126][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 270.508273][ C1] ? __pfx_raw_getfrag (net/ipv4/raw.c:446) 
[ 270.508427][ C1] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:199) 
[ 270.508575][ C1] ? __ip_finish_output (./include/linux/skbuff.h:1624 ./include/linux/skbuff.h:4942 net/ipv4/ip_output.c:307 net/ipv4/ip_output.c:295) 
[ 270.508723][ C1] ip_output (./include/linux/netfilter.h:303 net/ipv4/ip_output.c:433) 
[ 270.508833][ C1] ? __ip_local_out (net/ipv4/ip_output.c:96 net/ipv4/ip_output.c:107) 
[ 270.508981][ C1] ? __pfx_ip_output (net/ipv4/ip_output.c:427) 
[ 270.509128][ C1] ? __ip_make_skb (net/ipv4/ip_output.c:1379 net/ipv4/ip_output.c:1487) 
[ 270.509276][ C1] ? __pfx_raw_getfrag (net/ipv4/raw.c:446) 
[ 270.509423][ C1] ? ip_append_data (net/ipv4/ip_output.c:1368 net/ipv4/ip_output.c:1347) 
[ 270.509573][ C1] ip_push_pending_frames (./include/net/dst.h:450 net/ipv4/ip_output.c:129 net/ipv4/ip_output.c:1496 net/ipv4/ip_output.c:1516) 
[ 270.509721][ C1] raw_sendmsg (net/ipv4/raw.c:648) 
[ 270.509866][ C1] ? __pfx_validate_chain (kernel/locking/lockdep.c:3825) 
[ 270.510012][ C1] ? __pfx_raw_sendmsg (net/ipv4/raw.c:476) 
[ 270.510157][ C1] ? __lock_acquire (kernel/locking/lockdep.c:5137) 
[ 270.510308][ C1] ? find_held_lock (kernel/locking/lockdep.c:5244) 
[ 270.510456][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 270.510600][ C1] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 270.510747][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 270.510898][ C1] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) 
[ 270.511045][ C1] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) 
[ 270.511190][ C1] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 270.511336][ C1] ? __might_fault (mm/memory.c:6080 mm/memory.c:6073) 
[ 270.511483][ C1] ? __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) 
[ 270.511630][ C1] __sys_sendto (net/socket.c:730 net/socket.c:745 net/socket.c:2191) 
[ 270.511778][ C1] ? __pfx___sys_sendto (net/socket.c:2161) 
[ 270.511926][ C1] ? do_user_addr_fault (./include/linux/rcupdate.h:298 ./include/linux/rcupdate.h:750 ./include/linux/mm.h:686 arch/x86/mm/fault.c:1357) 
[ 270.512072][ C1] ? reacquire_held_locks (kernel/locking/lockdep.c:5279) 
[ 270.512225][ C1] ? __lock_release (kernel/locking/lockdep.c:5430) 
[ 270.512372][ C1] ? do_user_addr_fault (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:783 ./include/linux/mm.h:688 arch/x86/mm/fault.c:1357) 
[ 270.512518][ C1] ? __pfx___lock_release (kernel/locking/lockdep.c:5406) 
[ 270.512663][ 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) 
[ 270.512811][ C1] ? __pfx___up_read (kernel/locking/rwsem.c:1339) 
[ 270.512957][ C1] ? do_user_addr_fault (./include/linux/rcupdate.h:308 ./include/linux/rcupdate.h:783 ./include/linux/mm.h:688 arch/x86/mm/fault.c:1357) 
[ 270.513103][ C1] __x64_sys_sendto (net/socket.c:2199) 
[ 270.513248][ C1] ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:4300 kernel/locking/lockdep.c:4359) 
[ 270.513440][ C1] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 270.513587][ C1] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:129) 
[  270.513769][    C1] RIP: 0033:0x7ff9f62f385a
[ 270.513921][ 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
[  270.514447][    C1] RSP: 002b:00007ffce0623638 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  270.514670][    C1] RAX: ffffffffffffffda RBX: 0000000000000038 RCX: 00007ff9f62f385a
[  270.514890][    C1] RDX: 0000000000000040 RSI: 0000000001808340 RDI: 0000000000000005
[  270.515110][    C1] RBP: 00007ffce0623690 R08: 00000000004185e0 R09: 0000000000000010
[  270.515332][    C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000054


Finger prints:
__skb_to_sgvec:skb_to_sgvec:esp_output_tail:esp_xmit