======================================
| [ 4010.840878][T20366] IPv6: Can't replace route, no match found
| [ 4129.414483][T21280] Mirror/redirect action on
| [ 4209.430391][T21789] Oops: general protection fault, probably for non-canonical address 0xfbd59c0000000024: 0000 [#1] PREEMPT SMP KASAN NOPTI
| [ 4209.430832][T21789] KASAN: maybe wild-memory-access in range [0xdead000000000120-0xdead000000000127]
[ 4209.431273][T21789] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[4209.431577][T21789] RIP: 0010:neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[ 4209.431758][T21789] Code: 0f 85 ef 04 00 00 49 8d 7f 08 49 8b 1f 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 cc 04 00 00 49 8b 6f 08 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 19 05 00 00 48 89 5d 00 48 85 db 74 1a 48 8d
All code
========
   0:	0f 85 ef 04 00 00    	jne    0x4f5
   6:	49 8d 7f 08          	lea    0x8(%r15),%rdi
   a:	49 8b 1f             	mov    (%r15),%rbx
   d:	48 89 f8             	mov    %rdi,%rax
  10:	48 c1 e8 03          	shr    $0x3,%rax
  14:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
  19:	0f 85 cc 04 00 00    	jne    0x4eb
  1f:	49 8b 6f 08          	mov    0x8(%r15),%rbp
  23:	48 89 e8             	mov    %rbp,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
  2a:*	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)		<-- trapping instruction
  2f:	0f 85 19 05 00 00    	jne    0x54e
  35:	48 89 5d 00          	mov    %rbx,0x0(%rbp)
  39:	48 85 db             	test   %rbx,%rbx
  3c:	74 1a                	je     0x58
  3e:	48                   	rex.W
  3f:	8d                   	.byte 0x8d

Code starting with the faulting instruction
===========================================
   0:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1)
   5:	0f 85 19 05 00 00    	jne    0x524
   b:	48 89 5d 00          	mov    %rbx,0x0(%rbp)
   f:	48 85 db             	test   %rbx,%rbx
  12:	74 1a                	je     0x2e
  14:	48                   	rex.W
  15:	8d                   	.byte 0x8d
[ 4209.432231][T21789] RSP: 0018:ffffc90000afef10 EFLAGS: 00010a06
[ 4209.432416][T21789] RAX: 1bd5a00000000024 RBX: 0000000000000000 RCX: 0000000000000000
[ 4209.432619][T21789] RDX: 1ffff1100108799e RSI: ffff88800843c000 RDI: ffff888006160408
[ 4209.432818][T21789] RBP: dead000000000122 R08: ffff888006160400 R09: fffff5200015fde3
[ 4209.433015][T21789] R10: 0000000000000003 R11: 0000000000000018 R12: ffff88800616053c
[ 4209.433213][T21789] R13: dffffc0000000000 R14: ffff88800843c000 R15: ffff888006160400
[ 4209.433415][T21789] FS:  00007fdd0ec03800(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[ 4209.433646][T21789] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4209.433814][T21789] CR2: 00000000004e3e28 CR3: 0000000009a1e006 CR4: 0000000000772ef0
[ 4209.434011][T21789] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4209.434207][T21789] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4209.434409][T21789] PKRU: 55555554
[ 4209.434514][T21789] Call Trace:
[ 4209.434617][T21789]  <TASK>
[4209.434688][T21789] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) 
[4209.434800][T21789] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) 
[4209.434939][T21789] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) 
[4209.435075][T21789] ? neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[4209.435206][T21789] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[4209.435341][T21789] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) 
[4209.435478][T21789] ? fib_flush (net/ipv4/fib_frontend.c:195 (discriminator 11)) 
[4209.435582][T21789] neigh_ifdown (net/core/neighbour.c:445) 
[4209.435681][T21789] fib_netdev_event (net/ipv4/fib_frontend.c:1521) 
[4209.435812][T21789] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[4209.435949][T21789] dev_close_many (net/core/dev.c:1590) 
[4209.436085][T21789] ? __pfx_dev_close_many (net/core/dev.c:1577) 
[4209.436216][T21789] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[4209.436351][T21789] unregister_netdevice_many_notify (net/core/dev.c:11503) 
[4209.436521][T21789] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[4209.436655][T21789] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[4209.436794][T21789] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[4209.436926][T21789] ? __pfx_unregister_netdevice_many_notify (net/core/dev.c:11470) 
[4209.437096][T21789] ? sock_def_readable (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/sock.c:3464) 
[4209.437234][T21789] ? mutex_is_locked (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/locking/mutex.c:81 kernel/locking/mutex.c:91) 
[4209.437366][T21789] ? rtnl_is_locked (net/core/rtnetlink.c:164) 
[4209.437498][T21789] ? unregister_netdevice_queue (net/core/dev.c:11455) 
[4209.437669][T21789] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[4209.437802][T21789] ? __pfx_unregister_netdevice_queue (net/core/dev.c:11454) 
[4209.437966][T21789] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[4209.438065][T21789] ? __nla_validate_parse (./include/net/netlink.h:1267 (discriminator 1) lib/nlattr.c:622 (discriminator 1)) 
[4209.438201][T21789] rtnl_dellink (net/core/rtnetlink.c:3329 net/core/rtnetlink.c:3379) 
[4209.438336][T21789] ? 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) 
[4209.438469][T21789] ? __pfx_rtnl_dellink (net/core/rtnetlink.c:3335) 
[4209.438600][T21789] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[4209.438747][T21789] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 52)) 
[4209.438877][T21789] ? __mutex_lock (./arch/x86/include/asm/preempt.h:94 kernel/locking/mutex.c:618 kernel/locking/mutex.c:752) 
[4209.439014][T21789] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[4209.439144][T21789] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:6719) 
[4209.439276][T21789] ? __pfx___mutex_lock (kernel/locking/mutex.c:751) 
[4209.439407][T21789] ? __pfx___lock_release (kernel/locking/lockdep.c:5477) 
[4209.439538][T21789] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5790) 
[4209.439671][T21789] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 52)) 
[4209.439809][T21789] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) 
[4209.439943][T21789] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[4209.440076][T21789] ? 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) 
[4209.440209][T21789] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[4209.440311][T21789] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[4209.440447][T21789] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[4209.440578][T21789] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[4209.440711][T21789] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[4209.440853][T21789] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[4209.440987][T21789] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[4209.441121][T21789] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[4209.441253][T21789] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[4209.441384][T21789] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[4209.441517][T21789] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[4209.441651][T21789] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[4209.441782][T21789] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) 
[4209.441921][T21789] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[4209.442059][T21789] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[4209.442195][T21789] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[4209.442326][T21789] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[4209.442495][T21789] ___sys_sendmsg (net/socket.c:2663) 
[4209.442626][T21789] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[4209.442762][T21789] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[4209.442893][T21789] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[4209.443030][T21789] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[4209.443196][T21789] ? kasan_save_stack (mm/kasan/common.c:49) 
[4209.443329][T21789] ? kasan_save_stack (mm/kasan/common.c:48) 
[4209.443459][T21789] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) 
[4209.443593][T21789] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:87 ./arch/x86/include/asm/irqflags.h:123 kernel/rcu/tree.c:3087) 
[4209.443761][T21789] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) 
[4209.443895][T21789] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[4209.444032][T21789] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[4209.444201][T21789] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[4209.444336][T21789] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[4209.444469][T21789] ? __lock_release (kernel/locking/lockdep.c:5501) 
[4209.444608][T21789] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[4209.444714][T21789] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[4209.444847][T21789] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[4209.444979][T21789] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) 
[4209.445119][T21789] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[4209.445260][T21789] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 4209.445424][T21789] RIP: 0033:0x7fdd0ee0f7b7
[ 4209.445564][T21789] Code: 0a 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0a 00                	or     (%rax),%al
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[ 4209.446031][T21789] RSP: 002b:00007fff9d2e4328 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 4209.446235][T21789] RAX: ffffffffffffffda RBX: 00007fff9d2e4a60 RCX: 00007fdd0ee0f7b7
[ 4209.446435][T21789] RDX: 0000000000000000 RSI: 00007fff9d2e4390 RDI: 0000000000000005
[ 4209.446636][T21789] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 4209.446835][T21789] R10: 00007fdd0eccd4a8 R11: 0000000000000246 R12: 0000000000000002


Finger prints:
neigh_ifdown:fib_netdev_event:notifier_call_chain:dev_close_many:unregister_netdevice_many_notify