======================================
| [  698.322729][ T3309] ==================================================================
| [ 698.323009][ T3309] BUG: KASAN: slab-use-after-free in neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
| [  698.323276][ T3309] Write of size 8 at addr ffff888005346418 by task ip/3309
| [  698.323486][ T3309]
[  698.323795][ T3309] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[  698.324145][ T3309] Call Trace:
[  698.324277][ T3309]  <TASK>
[ 698.324354][ T3309] dump_stack_lvl (lib/dump_stack.c:123) 
[ 698.324504][ T3309] print_address_description.constprop.0 (mm/kasan/report.c:378) 
[ 698.324706][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.324848][ T3309] print_report (mm/kasan/report.c:489) 
[ 698.324986][ T3309] ? kasan_addr_to_slab (./include/linux/mm.h:1282 mm/kasan/../slab.h:206 mm/kasan/common.c:38) 
[ 698.325126][ T3309] kasan_report (mm/kasan/report.c:603) 
[ 698.325237][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.325411][ T3309] neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.325548][ T3309] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 698.325689][ T3309] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) 
[ 698.325838][ T3309] ? blocking_notifier_call_chain (kernel/notifier.c:388 kernel/notifier.c:376) 
[ 698.326026][ T3309] neigh_ifdown (net/core/neighbour.c:445) 
[ 698.326135][ T3309] fib_inetaddr_event (net/ipv4/fib_frontend.c:1431 net/ipv4/fib_frontend.c:1455) 
[ 698.326288][ T3309] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[ 698.326439][ T3309] blocking_notifier_call_chain (kernel/notifier.c:389 kernel/notifier.c:376) 
[ 698.326575][ T3309] __inet_del_ifa (net/ipv4/devinet.c:488) 
[ 698.326722][ T3309] inet_rtm_deladdr (net/ipv4/devinet.c:706) 
[ 698.326866][ T3309] ? __pfx_inet_rtm_deladdr (net/ipv4/devinet.c:665) 
[ 698.327016][ T3309] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) 
[ 698.327159][ T3309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 698.327308][ T3309] ? 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) 
[ 698.327490][ T3309] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 698.327631][ T3309] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 698.327814][ T3309] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 698.327985][ T3309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 698.328139][ T3309] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 698.328308][ T3309] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 698.328493][ T3309] ? 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) 
[ 698.328664][ T3309] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 698.328826][ T3309] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 698.329031][ T3309] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 698.329185][ T3309] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 698.329373][ T3309] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 698.329520][ T3309] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) 
[ 698.329702][ T3309] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 698.329881][ T3309] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 698.330055][ T3309] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 698.330217][ T3309] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 698.330452][ T3309] ___sys_sendmsg (net/socket.c:2663) 
[ 698.330605][ T3309] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 698.330780][ T3309] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 698.330927][ T3309] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 698.331089][ T3309] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 698.331292][ T3309] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 698.331448][ T3309] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 698.331635][ T3309] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) 
[ 698.331805][ T3309] ? __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) 
[ 698.331994][ T3309] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) 
[ 698.332151][ T3309] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 698.332320][ T3309] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 698.332505][ T3309] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 698.332679][ T3309] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 698.332835][ T3309] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 698.333005][ T3309] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 698.333131][ T3309] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 698.333283][ T3309] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 698.333445][ T3309] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) 
[ 698.333601][ T3309] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 698.333786][ T3309] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  698.333992][ T3309] RIP: 0033:0x7f790ab577b7
[ 698.334166][ T3309] 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)
[  698.334749][ T3309] RSP: 002b:00007fff43e744d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  698.334979][ T3309] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f790ab577b7
[  698.335203][ T3309] RDX: 0000000000000000 RSI: 00007fff43e74540 RDI: 0000000000000005
[  698.335426][ T3309] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000078
[  698.335663][ T3309] R10: 00007f790aa15ef8 R11: 0000000000000246 R12: 00007fff43e74c90
[  698.335911][ T3309] R13: 00000000671674c3 R14: 0000000000496600 R15: 00007fff43e74c98
| [  698.340368][ T3309] ------------[ cut here ]------------
| [  698.340533][ T3309] pool index 93034 out of bounds (770) for stack id 6b6b6b6b
| [ 698.340819][ T3309] WARNING: CPU: 3 PID: 3309 at lib/stackdepot.c:451 depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
| [  698.341125][ T3309] Modules linked in: ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre vxlan ip6_udp_tunnel udp_tunnel bridge stp llc act_mirred act_gact act_police cls_flower sch_ingress vrf veth
[  698.341935][ T3309] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 698.342307][ T3309] RIP: 0010:depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
[ 698.342477][ T3309] Code: b8 11 6d 94 e8 cb c0 9a 01 83 f8 01 75 b8 90 0f 0b 90 eb b2 90 48 c7 c7 28 47 e0 93 44 89 e1 44 89 ea 89 ee e8 7b f2 0d ff 90 <0f> 0b 90 90 31 c0 eb bb 90 0f 0b 90 eb b5 90 0f 0b 90 31 c0 eb ad
All code
========
   0:	b8 11 6d 94 e8       	mov    $0xe8946d11,%eax
   5:	cb                   	lret
   6:	c0 9a 01 83 f8 01 75 	rcrb   $0x75,0x1f88301(%rdx)
   d:	b8 90 0f 0b 90       	mov    $0x900b0f90,%eax
  12:	eb b2                	jmp    0xffffffffffffffc6
  14:	90                   	nop
  15:	48 c7 c7 28 47 e0 93 	mov    $0xffffffff93e04728,%rdi
  1c:	44 89 e1             	mov    %r12d,%ecx
  1f:	44 89 ea             	mov    %r13d,%edx
  22:	89 ee                	mov    %ebp,%esi
  24:	e8 7b f2 0d ff       	call   0xffffffffff0df2a4
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	31 c0                	xor    %eax,%eax
  30:	eb bb                	jmp    0xffffffffffffffed
  32:	90                   	nop
  33:	0f 0b                	ud2
  35:	90                   	nop
  36:	eb b5                	jmp    0xffffffffffffffed
  38:	90                   	nop
  39:	0f 0b                	ud2
  3b:	90                   	nop
  3c:	31 c0                	xor    %eax,%eax
  3e:	eb ad                	jmp    0xffffffffffffffed

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	90                   	nop
   4:	31 c0                	xor    %eax,%eax
   6:	eb bb                	jmp    0xffffffffffffffc3
   8:	90                   	nop
   9:	0f 0b                	ud2
   b:	90                   	nop
   c:	eb b5                	jmp    0xffffffffffffffc3
   e:	90                   	nop
   f:	0f 0b                	ud2
  11:	90                   	nop
  12:	31 c0                	xor    %eax,%eax
  14:	eb ad                	jmp    0xffffffffffffffc3
[  698.343080][ T3309] RSP: 0018:ffffc90000bbf200 EFLAGS: 00010086
[  698.343291][ T3309] RAX: 0000000000000000 RBX: 0000000000001b50 RCX: 1ffffffff283b43c
[  698.343550][ T3309] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[  698.343799][ T3309] RBP: 0000000000016b6a R08: 0000000000000000 R09: fffffbfff283b43c
[  698.344036][ T3309] R10: 0000000000000003 R11: 205d393033335420 R12: 000000006b6b6b6b
[  698.344272][ T3309] R13: 0000000000000302 R14: 0000000000000008 R15: ffff888008d10040
[  698.344509][ T3309] FS:  00007f790a94b800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  698.344800][ T3309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  698.345000][ T3309] CR2: 00000000004e2aa0 CR3: 000000000a226003 CR4: 0000000000772ef0
[  698.345240][ T3309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  698.345475][ T3309] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  698.345740][ T3309] PKRU: 55555554
[  698.345867][ T3309] Call Trace:
[  698.345993][ T3309]  <TASK>
[ 698.346076][ T3309] ? depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
[ 698.346245][ T3309] ? __warn (kernel/panic.c:748) 
[ 698.346368][ T3309] ? depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
[ 698.346525][ T3309] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 698.346712][ T3309] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 698.346842][ T3309] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 698.346998][ T3309] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 698.347159][ T3309] ? depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
[ 698.347329][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.347489][ T3309] stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 698.347648][ T3309] stack_depot_print (lib/stackdepot.c:745) 
[ 698.347819][ T3309] print_address_description.constprop.0 (mm/kasan/report.c:343 mm/kasan/report.c:352 mm/kasan/report.c:381) 
[ 698.348017][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.348190][ T3309] print_report (mm/kasan/report.c:489) 
[ 698.348348][ T3309] ? kasan_addr_to_slab (./include/linux/mm.h:1282 mm/kasan/../slab.h:206 mm/kasan/common.c:38) 
[ 698.348507][ T3309] kasan_report (mm/kasan/report.c:603) 
[ 698.348635][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.348806][ T3309] neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.348961][ T3309] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 698.349123][ T3309] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) 
[ 698.349297][ T3309] ? blocking_notifier_call_chain (kernel/notifier.c:388 kernel/notifier.c:376) 
[ 698.349499][ T3309] neigh_ifdown (net/core/neighbour.c:445) 
[ 698.349629][ T3309] fib_inetaddr_event (net/ipv4/fib_frontend.c:1431 net/ipv4/fib_frontend.c:1455) 
[ 698.349817][ T3309] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[ 698.350007][ T3309] blocking_notifier_call_chain (kernel/notifier.c:389 kernel/notifier.c:376) 
[ 698.350168][ T3309] __inet_del_ifa (net/ipv4/devinet.c:488) 
[ 698.350344][ T3309] inet_rtm_deladdr (net/ipv4/devinet.c:706) 
[ 698.350505][ T3309] ? __pfx_inet_rtm_deladdr (net/ipv4/devinet.c:665) 
[ 698.350682][ T3309] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) 
[ 698.350861][ T3309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 698.351021][ T3309] ? 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) 
[ 698.351181][ T3309] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 698.351301][ T3309] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 698.351464][ T3309] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 698.351751][ T3309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 698.351922][ T3309] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 698.352091][ T3309] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 698.352263][ T3309] ? 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) 
[ 698.352421][ T3309] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 698.352679][ T3309] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 698.352856][ T3309] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 698.353030][ T3309] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 698.353189][ T3309] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 698.353357][ T3309] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) 
[ 698.353516][ T3309] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 698.353722][ T3309] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 698.353889][ T3309] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 698.354060][ T3309] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 698.354263][ T3309] ___sys_sendmsg (net/socket.c:2663) 
[ 698.354439][ T3309] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 698.354600][ T3309] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 698.354876][ T3309] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 698.355033][ T3309] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 698.355270][ T3309] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 698.355428][ T3309] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 698.355714][ T3309] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) 
[ 698.355884][ T3309] ? __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) 
[ 698.356099][ T3309] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) 
[ 698.356270][ T3309] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 698.356444][ T3309] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 698.356642][ T3309] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 698.356812][ T3309] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 698.356978][ T3309] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 698.357136][ T3309] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 698.357261][ T3309] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 698.357424][ T3309] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 698.357597][ T3309] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) 
[ 698.357810][ T3309] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 698.358065][ T3309] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  698.358263][ T3309] RIP: 0033:0x7f790ab577b7
[ 698.358440][ T3309] 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)
[  698.359158][ T3309] RSP: 002b:00007fff43e744d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  698.359399][ T3309] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f790ab577b7
[  698.359640][ T3309] RDX: 0000000000000000 RSI: 00007fff43e74540 RDI: 0000000000000005
[  698.359876][ T3309] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000078
[  698.360157][ T3309] R10: 00007f790aa15ef8 R11: 0000000000000246 R12: 00007fff43e74c90
[  698.360613][ T3309] R13: 00000000671674c3 R14: 0000000000496600 R15: 00007fff43e74c98
| [  698.363057][ T3309] corrupt handle or use after stack_depot_put()
| [ 698.363098][ T3309] WARNING: CPU: 3 PID: 3309 at lib/stackdepot.c:711 stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
| [  698.363677][ T3309] Modules linked in: ip6_gre ip6_tunnel tunnel6 cls_matchall ip_gre gre vxlan ip6_udp_tunnel udp_tunnel bridge stp llc act_mirred act_gact act_police cls_flower sch_ingress vrf veth
| [  698.364564][ T3309] Tainted: [W]=WARN
[  698.364699][ T3309] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 698.365029][ T3309] RIP: 0010:stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 698.365284][ T3309] Code: 74 1a 48 8d 50 20 48 89 13 5b 8b 40 14 5d 41 5c c3 cc cc cc cc 31 c0 c3 cc cc cc cc 90 48 c7 c7 08 48 e0 93 e8 62 ed 0d ff 90 <0f> 0b 90 90 eb bb 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
All code
========
   0:	74 1a                	je     0x1c
   2:	48 8d 50 20          	lea    0x20(%rax),%rdx
   6:	48 89 13             	mov    %rdx,(%rbx)
   9:	5b                   	pop    %rbx
   a:	8b 40 14             	mov    0x14(%rax),%eax
   d:	5d                   	pop    %rbp
   e:	41 5c                	pop    %r12
  10:	c3                   	ret
  11:	cc                   	int3
  12:	cc                   	int3
  13:	cc                   	int3
  14:	cc                   	int3
  15:	31 c0                	xor    %eax,%eax
  17:	c3                   	ret
  18:	cc                   	int3
  19:	cc                   	int3
  1a:	cc                   	int3
  1b:	cc                   	int3
  1c:	90                   	nop
  1d:	48 c7 c7 08 48 e0 93 	mov    $0xffffffff93e04808,%rdi
  24:	e8 62 ed 0d ff       	call   0xffffffffff0ded8b
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	eb bb                	jmp    0xffffffffffffffeb
  30:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  37:	00 00 00 00 
  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:	90                   	nop
   3:	90                   	nop
   4:	eb bb                	jmp    0xffffffffffffffc1
   6:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   d:	00 00 00 00 
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[  698.365810][ T3309] RSP: 0018:ffffc90000bbf228 EFLAGS: 00010086
[  698.366123][ T3309] RAX: 0000000000000000 RBX: ffffc90000bbf248 RCX: 1ffffffff283b43c
[  698.366348][ T3309] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[  698.366607][ T3309] RBP: 000000006b6b6b6b R08: 0000000000000000 R09: fffffbfff283b43c
[  698.366996][ T3309] R10: 0000000000000003 R11: 65737520726f2065 R12: 0000000000000000
[  698.367244][ T3309] R13: ffffffff92879707 R14: 0000000000000008 R15: ffff888008d10040
[  698.367461][ T3309] FS:  00007f790a94b800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  698.367743][ T3309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  698.367930][ T3309] CR2: 00000000004e2aa0 CR3: 000000000a226003 CR4: 0000000000772ef0
[  698.368264][ T3309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  698.368488][ T3309] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  698.368737][ T3309] PKRU: 55555554
[  698.368852][ T3309] Call Trace:
[  698.369077][ T3309]  <TASK>
[ 698.369152][ T3309] ? stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 698.369302][ T3309] ? __warn (kernel/panic.c:748) 
[ 698.369429][ T3309] ? nbcon_get_cpu_emergency_nesting (kernel/printk/nbcon.c:1356) 
[ 698.369618][ T3309] ? stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 698.369914][ T3309] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 698.370086][ T3309] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 698.370265][ T3309] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 698.370426][ T3309] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 698.370594][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.370778][ T3309] ? stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 698.370924][ T3309] ? stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 698.371069][ T3309] stack_depot_print (lib/stackdepot.c:745) 
[ 698.371301][ T3309] print_address_description.constprop.0 (mm/kasan/report.c:343 mm/kasan/report.c:352 mm/kasan/report.c:381) 
[ 698.371489][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.371681][ T3309] print_report (mm/kasan/report.c:489) 
[ 698.371835][ T3309] ? kasan_addr_to_slab (./include/linux/mm.h:1282 mm/kasan/../slab.h:206 mm/kasan/common.c:38) 
[ 698.372080][ T3309] kasan_report (mm/kasan/report.c:603) 
[ 698.372191][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.372337][ T3309] neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 698.372483][ T3309] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 698.372650][ T3309] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) 
[ 698.372995][ T3309] ? blocking_notifier_call_chain (kernel/notifier.c:388 kernel/notifier.c:376) 
[ 698.373193][ T3309] neigh_ifdown (net/core/neighbour.c:445) 
[ 698.373308][ T3309] fib_inetaddr_event (net/ipv4/fib_frontend.c:1431 net/ipv4/fib_frontend.c:1455) 
[ 698.373471][ T3309] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[ 698.373754][ T3309] blocking_notifier_call_chain (kernel/notifier.c:389 kernel/notifier.c:376) 
[ 698.373905][ T3309] __inet_del_ifa (net/ipv4/devinet.c:488) 
[ 698.374068][ T3309] inet_rtm_deladdr (net/ipv4/devinet.c:706) 
[ 698.374219][ T3309] ? __pfx_inet_rtm_deladdr (net/ipv4/devinet.c:665) 
[ 698.374503][ T3309] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) 
[ 698.374675][ T3309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 698.374852][ T3309] ? 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) 
[ 698.375056][ T3309] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 698.375181][ T3309] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 698.375423][ T3309] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 698.375613][ T3309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 698.375787][ T3309] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 698.375951][ T3309] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 698.376229][ T3309] ? 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) 
[ 698.376410][ T3309] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 698.376564][ T3309] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 698.376731][ T3309] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 698.377012][ T3309] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 698.377165][ T3309] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 698.377317][ T3309] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) 
[ 698.377479][ T3309] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 698.377634][ T3309] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 698.377907][ T3309] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 698.378065][ T3309] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 698.378267][ T3309] ___sys_sendmsg (net/socket.c:2663) 
[ 698.378416][ T3309] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 698.378704][ T3309] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 698.378894][ T3309] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 698.379064][ T3309] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 698.379259][ T3309] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 698.379444][ T3309] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 698.379605][ T3309] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) 
[ 698.379769][ T3309] ? __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) 
[ 698.379994][ T3309] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) 
[ 698.380150][ T3309] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 698.380302][ T3309] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 698.380511][ T3309] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 698.380668][ T3309] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 698.380936][ T3309] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 698.381086][ T3309] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 698.381208][ T3309] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 698.381383][ T3309] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 698.381649][ T3309] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) 
[ 698.381852][ T3309] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 698.382004][ T3309] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  698.382196][ T3309] RIP: 0033:0x7f790ab577b7
[ 698.382391][ T3309] 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)
[  698.383022][ T3309] RSP: 002b:00007fff43e744d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  698.383376][ T3309] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f790ab577b7
[  698.383757][ T3309] RDX: 0000000000000000 RSI: 00007fff43e74540 RDI: 0000000000000005
[  698.384114][ T3309] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000078
[  698.384616][ T3309] R10: 00007f790aa15ef8 R11: 0000000000000246 R12: 00007fff43e74c90
[  698.384979][ T3309] R13: 00000000671674c3 R14: 0000000000496600 R15: 00007fff43e74c98
| [  698.397284][ T3309] Disabling lock debugging due to kernel taint
| [  698.397899][ T3309] Oops: general protection fault, probably for non-canonical address 0xed6d696d6d6d6d6d: 0000 [#1] PREEMPT SMP KASAN NOPTI
| [  698.398608][ T3309] KASAN: maybe wild-memory-access in range [0x6b6b6b6b6b6b6b68-0x6b6b6b6b6b6b6b6f]
| [  698.399359][ T3309] Tainted: [B]=BAD_PAGE, [W]=WARN
[  698.399567][ T3309] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 698.400046][ T3309] RIP: 0010:neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[ 698.400339][ T3309] 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
[  698.401073][ T3309] RSP: 0018:ffffc90000bbf388 EFLAGS: 00010202
[  698.401476][ T3309] RAX: 0d6d6d6d6d6d6d6d RBX: 6b6b6b6b6b6b6b6b RCX: ffffffff928796f0
[  698.401891][ T3309] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888005346408
[  698.402203][ T3309] RBP: 6b6b6b6b6b6b6b6b R08: 0000000000000000 R09: 0000000000000000
[  698.402661][ T3309] R10: ffffffff94d71f0f R11: ffffc90000bbef99 R12: ffff88800534653c
[  698.403000][ T3309] R13: dffffc0000000000 R14: ffff888005641000 R15: ffff888005346400
[  698.403314][ T3309] FS:  00007f790a94b800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  698.403685][ T3309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  698.403942][ T3309] CR2: 00000000004e2aa0 CR3: 000000000a226003 CR4: 0000000000772ef0
[  698.404253][ T3309] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  698.404724][ T3309] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  698.405044][ T3309] PKRU: 55555554
[  698.405200][ T3309] Call Trace:
[  698.405361][ T3309]  <TASK>
[ 698.405470][ T3309] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) 
[ 698.405640][ T3309] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) 
[ 698.405868][ T3309] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) 
[ 698.406095][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:986 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[ 698.406315][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[ 698.406532][ T3309] ? neigh_flush_dev.isra.0 (./include/linux/list.h:986 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[ 698.406746][ T3309] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 698.406971][ T3309] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) 
[ 698.407184][ T3309] ? blocking_notifier_call_chain (kernel/notifier.c:388 kernel/notifier.c:376) 
[ 698.407579][ T3309] neigh_ifdown (net/core/neighbour.c:445) 
[ 698.407734][ T3309] fib_inetaddr_event (net/ipv4/fib_frontend.c:1431 net/ipv4/fib_frontend.c:1455) 
[ 698.407961][ T3309] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[ 698.408177][ T3309] blocking_notifier_call_chain (kernel/notifier.c:389 kernel/notifier.c:376) 
[ 698.408516][ T3309] __inet_del_ifa (net/ipv4/devinet.c:488) 
[ 698.408737][ T3309] inet_rtm_deladdr (net/ipv4/devinet.c:706) 
[ 698.408955][ T3309] ? __pfx_inet_rtm_deladdr (net/ipv4/devinet.c:665) 
[ 698.409168][ T3309] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) 
[ 698.409386][ T3309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 698.409708][ T3309] ? 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) 
[ 698.409930][ T3309] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 698.410088][ T3309] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 698.410304][ T3309] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 698.410518][ T3309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 698.410730][ T3309] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 698.410948][ T3309] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 698.411154][ T3309] ? 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) 
[ 698.411370][ T3309] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 698.411599][ T3309] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 698.411841][ T3309] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 698.412083][ T3309] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 698.412318][ T3309] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 698.412658][ T3309] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) 
[ 698.412832][ T3309] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 698.412976][ T3309] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 698.413109][ T3309] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 698.413316][ T3309] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 698.413489][ T3309] ___sys_sendmsg (net/socket.c:2663) 
[ 698.413655][ T3309] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 698.413871][ T3309] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 698.414243][ T3309] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 698.414457][ T3309] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 698.414724][ T3309] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 698.414896][ T3309] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 698.415135][ T3309] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) 
[ 698.415278][ T3309] ? __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) 
[ 698.415447][ T3309] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) 
[ 698.415591][ T3309] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 698.415815][ T3309] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 698.415984][ T3309] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 698.416120][ T3309] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 698.416262][ T3309] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 698.416498][ T3309] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 698.416628][ T3309] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 698.416761][ T3309] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 698.416993][ T3309] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) 
[ 698.417241][ T3309] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 698.417414][ T3309] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  698.417624][ T3309] RIP: 0033:0x7f790ab577b7
[ 698.417765][ T3309] 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)
[  698.418442][ T3309] RSP: 002b:00007fff43e744d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  698.418720][ T3309] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f790ab577b7
[  698.419186][ T3309] RDX: 0000000000000000 RSI: 00007fff43e74540 RDI: 0000000000000005
[  698.419505][ T3309] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000078
[  698.419861][ T3309] R10: 00007f790aa15ef8 R11: 0000000000000246 R12: 00007fff43e74c90


Finger prints:
stack_depot_fetch:stack_depot_print:print_report:kasan_report:neigh_ifdown
neigh_ifdown:fib_inetaddr_event:notifier_call_chain:blocking_notifier_call_chain:__inet_del_ifa
print_report:kasan_report:neigh_ifdown:fib_inetaddr_event:notifier_call_chain
depot_fetch_stack:stack_depot_fetch:stack_depot_print:print_report:kasan_report