======================================
| [  789.031558][T12848] eth1: renamed from tmp
| [  799.715477][T13010] eth1: renamed from tmp
| [  806.650235][    C1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000021: 0000 [#1] SMP KASAN
| [  806.650528][    C1] KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f]
[  806.650855][    C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  806.650987][    C1] RIP: 0010:ip6_rt_pcpu_alloc (./include/net/net_namespace.h:419 (discriminator 10) ./include/linux/netdevice.h:2741 (discriminator 10) net/ipv6/route.c:1418 (discriminator 10))
[  806.651091][    C1] Code: fe ff 0f b7 ed 49 89 c7 e8 8e fb 3e 00 49 8d 87 08 01 00 00 48 89 c2 48 89 44 24 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 de 03 00 00 49 8b 87 08 01 00 00 89 e9 ba ff ff
All code
========
   0:	fe                   	(bad)
   1:	ff 0f                	decl   (%rdi)
   3:	b7 ed                	mov    $0xed,%bh
   5:	49 89 c7             	mov    %rax,%r15
   8:	e8 8e fb 3e 00       	call   0x3efb9b
   d:	49 8d 87 08 01 00 00 	lea    0x108(%r15),%rax
  14:	48 89 c2             	mov    %rax,%rdx
  17:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  1c:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  23:	fc ff df 
  26:	48 c1 ea 03          	shr    $0x3,%rdx
  2a:*	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)		<-- trapping instruction
  2e:	0f 85 de 03 00 00    	jne    0x412
  34:	49 8b 87 08 01 00 00 	mov    0x108(%r15),%rax
  3b:	89 e9                	mov    %ebp,%ecx
  3d:	ba                   	.byte 0xba
  3e:	ff                   	(bad)
  3f:	ff                   	.byte 0xff

Code starting with the faulting instruction
===========================================
   0:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1)
   4:	0f 85 de 03 00 00    	jne    0x3e8
   a:	49 8b 87 08 01 00 00 	mov    0x108(%r15),%rax
  11:	89 e9                	mov    %ebp,%ecx
  13:	ba                   	.byte 0xba
  14:	ff                   	(bad)
  15:	ff                   	.byte 0xff
[  806.651444][    C1] RSP: 0018:ffa00000001c05b8 EFLAGS: 00010216
[  806.651572][    C1] RAX: dffffc0000000000 RBX: ff1100000acc022c RCX: 0000000000000000
[  806.651720][    C1] RDX: 0000000000000021 RSI: dffffc0000000000 RDI: 1fe22000011a3235
[  806.651864][    C1] RBP: 0000000000000008 R08: ff11000012980b58 R09: ff11000012980b58
[  806.652010][    C1] R10: 0000000000000001 R11: 0000000000000001 R12: ff1100000acc0200
[  806.652151][    C1] R13: 1ff40000000380b9 R14: ffa00000001c06d8 R15: 0000000000000000
[  806.652305][    C1] FS:  00007ff40d949740(0000) GS:ff110000c566b000(0000) knlGS:0000000000000000
[  806.652478][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  806.652603][    C1] CR2: 0000559957458638 CR3: 000000001438b006 CR4: 0000000000771ef0
[  806.652750][    C1] PKRU: 55555554
[  806.652823][    C1] Call Trace:
[  806.652895][    C1]  <IRQ>
[  806.652945][    C1]  ? trace_fib6_table_lookup (./include/trace/events/fib6.h:13 (discriminator 33))
[  806.653046][    C1]  ? rt6_do_update_pmtu (net/ipv6/route.c:1407)
[  806.653139][    C1]  ? __rt6_find_exception_rcu.constprop.0 (net/ipv6/route.c:1612 (discriminator 2))
[  806.653258][    C1]  ip6_pol_route (net/ipv6/route.c:1467 net/ipv6/route.c:2318)
[  806.653356][    C1]  ? ip6_pol_route_lookup (net/ipv6/route.c:2267)
[  806.653453][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  806.653549][    C1]  ? ip6_pol_route (net/ipv6/route.c:2338)
[  806.653645][    C1]  __fib6_rule_action (net/ipv6/fib6_rules.c:239)
[  806.653734][    C1]  fib_rules_lookup (net/core/fib_rules.c:339)
[  806.653832][    C1]  ? fib_nl_dumprule (net/core/fib_rules.c:315)
[  806.653923][    C1]  ? l3mdev_update_flow (./include/linux/rcupdate.h:341 (discriminator 1) ./include/linux/rcupdate.h:897 (discriminator 1) net/l3mdev/l3mdev.c:301 (discriminator 1))
[  806.654018][    C1]  ? ip6_pol_route (net/ipv6/route.c:2338)
[  806.654108][    C1]  fib6_rule_lookup (net/ipv6/fib6_rules.c:115)
[  806.654196][    C1]  ? __udp6_lib_rcv (net/ipv6/udp.c:1150)
[  806.654286][    C1]  ? fib6_lookup (net/ipv6/fib6_rules.c:99)
[  806.654384][    C1]  ? ip6_pol_route (net/ipv6/route.c:2338)
[  806.654475][    C1]  ? vrf_ip6_rcv (./arch/x86/include/asm/jump_label.h:37 ./include/linux/jump_label.h:208 ./include/linux/netfilter.h:238 drivers/net/vrf.c:1181 drivers/net/vrf.c:1370)
[  806.654569][    C1]  ip6_route_input (./include/linux/skbuff.h:1247 net/ipv6/route.c:2654)
[  806.654658][    C1]  ? ip6_validate_gw (net/ipv6/route.c:2629)
[  806.654749][    C1]  ? __udp6_lib_demux_lookup (net/ipv6/udp.c:1213 (discriminator 4))
[  806.654840][    C1]  ? ip6_rcv_core (./include/linux/skbuff.h:3391 net/ipv6/ip6_input.c:292)
[  806.654928][    C1]  ipv6_rcv (./include/linux/skbuff.h:1175 ./include/net/dst.h:480 net/ipv6/ip6_input.c:79 ./include/linux/netfilter.h:318 ./include/linux/netfilter.h:312 net/ipv6/ip6_input.c:311)
[  806.654998][    C1]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4028 (discriminator 2) kernel/rcu/tree.c:4020 (discriminator 2))
[  806.655121][    C1]  ? ip6_rcv_core (net/ipv6/ip6_input.c:305)
[  806.655209][    C1]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[  806.655300][    C1]  ? asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:697)
[  806.655412][    C1]  ? pv_native_safe_halt (arch/x86/kernel/paravirt.c:82)
[  806.655507][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  806.655599][    C1]  __netif_receive_skb_one_core (net/core/dev.c:6143)
[  806.655713][    C1]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870)
[  806.655809][    C1]  ? __netif_receive_skb_list_core (net/core/dev.c:6143)
[  806.655922][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  806.656020][    C1]  ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 33) kernel/locking/lockdep.c:5831 (discriminator 33))
[  806.656110][    C1]  process_backlog (./include/linux/rcupdate.h:895 net/core/dev.c:6616)
[  806.656205][    C1]  ? process_backlog (./include/linux/local_lock_internal.h:57 (discriminator 1) net/core/dev.c:6613 (discriminator 1))
[  806.656295][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  806.656389][    C1]  __napi_poll.constprop.0 (net/core/dev.c:7680)
[  806.656481][    C1]  net_rx_action (net/core/dev.c:7742 net/core/dev.c:7894)
[  806.656577][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  806.656668][    C1]  ? run_backlog_napi (net/core/dev.c:7856)
[  806.656759][    C1]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 6) kernel/locking/lockdep.c:4411 (discriminator 6))
[  806.656870][    C1]  ? warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 4))
[  806.656965][    C1]  ? rcu_do_batch (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 kernel/rcu/tree_nocb.h:1638 kernel/rcu/tree.c:2671)
[  806.657059][    C1]  handle_softirqs (./arch/x86/include/asm/jump_label.h:37 ./include/trace/events/irq.h:142 kernel/softirq.c:623)
[  806.657150][    C1]  ? _local_bh_enable (kernel/softirq.c:580)
[  806.657236][    C1]  ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  806.657331][    C1]  do_softirq (kernel/softirq.c:523 (discriminator 25) kernel/softirq.c:510 (discriminator 25))
[  806.657403][    C1]  </IRQ>
[  806.657449][    C1]  <TASK>
[  806.657493][    C1]  ? __dev_queue_xmit (./include/linux/rcupdate.h:341 (discriminator 1) ./include/linux/rcupdate.h:934 (discriminator 1) net/core/dev.c:4857 (discriminator 1))
[  806.657586][    C1]  __local_bh_enable_ip (kernel/softirq.c:450)
[  806.657674][    C1]  __dev_queue_xmit (net/core/dev.c:4858)
[  806.657765][    C1]  ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1))
[  806.657857][    C1]  ? netdev_core_pick_tx (net/core/dev.c:4738)
[  806.657945][    C1]  ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3))
[  806.658037][    C1]  ? eth_header (net/ethernet/eth.c:100)
[  806.658126][    C1]  ? neigh_resolve_output (./include/linux/netdevice.h:3439 net/core/neighbour.c:1614 net/core/neighbour.c:1599)
[  806.658223][    C1]  ip6_finish_output2 (net/ipv6/ip6_output.c:61)
[  806.658328][    C1]  ? ip6_xmit (net/ipv6/ip6_output.c:61)
[  806.658421][    C1]  ? find_held_lock (kernel/locking/lockdep.c:5350 (discriminator 1))
[  806.658511][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  806.658601][    C1]  ? ip6_mtu (./include/linux/rcupdate.h:341 (discriminator 1) ./include/linux/rcupdate.h:897 (discriminator 1) ./include/net/ip6_route.h:349 (discriminator 1) net/ipv6/route.c:3279 (discriminator 1))
[  806.658669][    C1]  ip6_finish_output (net/ipv6/ip6_output.c:208 net/ipv6/ip6_output.c:219)
[  806.658763][    C1]  ip6_output (./include/linux/netfilter.h:307 net/ipv6/ip6_output.c:246)
[  806.658833][    C1]  ? ip6_finish_output (net/ipv6/ip6_output.c:227)
[  806.658928][    C1]  ? __ip6_local_out (./include/linux/rcupdate.h:341 (discriminator 1) ./include/linux/rcupdate.h:897 (discriminator 1) ./include/net/l3mdev.h:222 (discriminator 1) ./include/net/l3mdev.h:236 (discriminator 1) net/ipv6/output_core.c:134 (discriminator 1))
[  806.659022][    C1]  ip6_send_skb (net/ipv6/ip6_output.c:1984)
[  806.659113][    C1]  udp_v6_send_skb (net/ipv6/udp.c:1442)
[  806.659204][    C1]  ? print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4067)
[  806.659314][    C1]  udpv6_sendmsg (net/ipv6/udp.c:1733)
[  806.659411][    C1]  ? ip_frag_init (net/ipv4/ip_output.c:934)
[  806.659506][    C1]  ? udpv6_splice_eof (net/ipv6/udp.c:1478)
[  806.659598][    C1]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 (discriminator 1) kernel/rcu/update.c:380 (discriminator 1))
[  806.659689][    C1]  ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 4) kernel/locking/lockdep.c:3821 (discriminator 4) kernel/locking/lockdep.c:3876 (discriminator 4))
[  806.659778][    C1]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536)
[  806.659873][    C1]  ? __might_fault (mm/memory.c:7177 (discriminator 4))
[  806.659964][    C1]  ? ____sys_sendmsg (net/socket.c:727 (discriminator 4) net/socket.c:742 (discriminator 4) net/socket.c:2592 (discriminator 4))
[  806.660058][    C1]  ____sys_sendmsg (net/socket.c:727 (discriminator 4) net/socket.c:742 (discriminator 4) net/socket.c:2592 (discriminator 4))
[  806.660151][    C1]  ? get_timestamp.constprop.0 (net/socket.c:2538)
[  806.660260][    C1]  ? move_addr_to_kernel (net/socket.c:2518)
[  806.660360][    C1]  ___sys_sendmsg (net/socket.c:2648)
[  806.660450][    C1]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 33))
[  806.660541][    C1]  ? copy_msghdr_from_user (net/socket.c:2635)
[  806.660633][    C1]  ? ktime_get_ts64 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 ./include/linux/seqlock.h:74 kernel/time/timekeeping.c:965)
[  806.660726][    C1]  __sys_sendmsg (net/socket.c:2678 (discriminator 1))
[  806.660817][    C1]  ? __sys_sendmsg_sock (net/socket.c:2663)
[  806.660907][    C1]  ? kern_select (fs/select.c:728)
[  806.661006][    C1]  ? restore_fpregs_from_fpstate (arch/x86/kernel/fpu/xstate.h:240 arch/x86/kernel/fpu/core.c:207)
[  806.661119][    C1]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:751 (discriminator 1))
[  806.661211][    C1]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1))
[  806.661300][    C1]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)
[  806.661414][    C1] RIP: 0033:0x7ff40d9bac5e
[  806.661508][    C1] Code: 4d 89 d8 e8 34 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 13 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 34 bd 00 00       	call   0xbd3c
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 13 ff ff ff       	call   0xffffffffffffff4c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 13 ff ff ff       	call   0xffffffffffffff22
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  806.661830][    C1] RSP: 002b:00007ffe1c5160f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  806.661974][    C1] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007ff40d9bac5e
[  806.662113][    C1] RDX: 0000000000000000 RSI: 00007ffe1c5161a0 RDI: 0000000000000005
[  806.662252][    C1] RBP: 00007ffe1c516100 R08: 0000000000000000 R09: 0000000000000000
[  806.662394][    C1] R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffe1c51aa20


Finger prints:
ip6_rt_pcpu_alloc:ip6_pol_route:__fib6_rule_action:fib_rules_lookup:fib6_rule_lookup