======================================
| [   93.967169][  T397] ==================================================================
| [ 93.967528][ T397] 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) 
| [   93.967884][  T397] Write of size 8 at addr ffff88800205cc18 by task ip/397
| [   93.968175][  T397]
[   93.968642][  T397] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[   93.969163][  T397] Call Trace:
[   93.969345][  T397]  <TASK>
[ 93.969465][ T397] dump_stack_lvl (lib/dump_stack.c:123) 
[ 93.969703][ T397] print_address_description.constprop.0 (mm/kasan/report.c:378) 
[ 93.970044][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 93.970285][ T397] print_report (mm/kasan/report.c:489) 
[ 93.970527][ T397] ? kasan_addr_to_slab (./include/linux/mm.h:1282 mm/kasan/../slab.h:206 mm/kasan/common.c:38) 
[ 93.970773][ T397] kasan_report (mm/kasan/report.c:603) 
[ 93.970959][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 93.971205][ T397] neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 93.971445][ T397] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 93.971694][ T397] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) 
[ 93.971932][ T397] ? blocking_notifier_call_chain (kernel/notifier.c:388 kernel/notifier.c:376) 
[ 93.972238][ T397] neigh_ifdown (net/core/neighbour.c:445) 
[ 93.972417][ T397] fib_inetaddr_event (net/ipv4/fib_frontend.c:1431 net/ipv4/fib_frontend.c:1455) 
[ 93.972660][ T397] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[ 93.972902][ T397] blocking_notifier_call_chain (kernel/notifier.c:389 kernel/notifier.c:376) 
[ 93.973145][ T397] __inet_del_ifa (net/ipv4/devinet.c:488) 
[ 93.973389][ T397] inet_rtm_deladdr (net/ipv4/devinet.c:706) 
[ 93.973638][ T397] ? __pfx_inet_rtm_deladdr (net/ipv4/devinet.c:665) 
[ 93.973908][ T397] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) 
[ 93.974150][ T397] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 93.974388][ T397] ? 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) 
[ 93.974629][ T397] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 93.974848][ T397] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 93.975102][ T397] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 93.975346][ T397] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 93.975588][ T397] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 93.975844][ T397] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 93.976083][ T397] ? 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) 
[ 93.976345][ T397] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 93.976598][ T397] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 93.976833][ T397] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 93.977062][ T397] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 93.977297][ T397] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 93.977531][ T397] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) 
[ 93.977793][ T397] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 93.978039][ T397] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 93.978286][ T397] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 93.978517][ T397] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 93.978804][ T397] ___sys_sendmsg (net/socket.c:2663) 
[ 93.979026][ T397] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 93.979256][ T397] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 93.979509][ T397] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 93.979747][ T397] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 93.980043][ T397] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 93.980297][ T397] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 93.980533][ T397] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) 
[ 93.980774][ T397] ? __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) 
[ 93.981086][ T397] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) 
[ 93.981327][ T397] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 93.981575][ T397] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 93.981868][ T397] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 93.982128][ T397] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 93.982372][ T397] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 93.982612][ T397] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 93.982799][ T397] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 93.983040][ T397] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 93.983276][ T397] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) 
[ 93.983531][ T397] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 93.983803][ T397] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   93.984098][  T397] RIP: 0033:0x7feaaeef07b7
[ 93.984348][ T397] 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)
[   93.985230][  T397] RSP: 002b:00007ffd4f0cbf48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   93.985607][  T397] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feaaeef07b7
[   93.985965][  T397] RDX: 0000000000000000 RSI: 00007ffd4f0cbfb0 RDI: 0000000000000005
[   93.986321][  T397] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000078
[   93.986701][  T397] R10: 00007feaaedaeef8 R11: 0000000000000246 R12: 00007ffd4f0cc700
[   93.987056][  T397] R13: 00000000671670a7 R14: 0000000000496600 R15: 00007ffd4f0cc708
| [   93.993741][  T397] ------------[ cut here ]------------
| [   93.994018][  T397] pool index 93034 out of bounds (586) for stack id 6b6b6b6b
| [ 93.994407][ T397] WARNING: CPU: 0 PID: 397 at lib/stackdepot.c:451 depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
| [   93.994844][  T397] Modules linked in: 8021q vrf veth
[   93.995475][  T397] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 93.996052][ T397] RIP: 0010:depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
[ 93.996315][ T397] Code: b8 11 ed af e8 cb c0 9a 01 83 f8 01 75 b8 90 0f 0b 90 eb b2 90 48 c7 c7 28 47 60 af 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 ed af e8       	mov    $0xe8afed11,%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 60 af 	mov    $0xffffffffaf604728,%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
[   93.997226][  T397] RSP: 0018:ffffc9000071f200 EFLAGS: 00010086
[   93.997533][  T397] RAX: 0000000000000000 RBX: 0000000000001b50 RCX: 1ffffffff5f3b43c
[   93.997910][  T397] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[   93.998283][  T397] RBP: 0000000000016b6a R08: 0000000000000000 R09: fffffbfff5f3b43c
[   93.998654][  T397] R10: 0000000000000003 R11: 205d373933542020 R12: 000000006b6b6b6b
[   93.999021][  T397] R13: 000000000000024a R14: 0000000000000008 R15: ffff888006ada300
[   93.999411][  T397] FS:  00007feaaece4800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   93.999845][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   94.000179][  T397] CR2: 00000000004e3370 CR3: 0000000005f9a003 CR4: 0000000000772ef0
[   94.000560][  T397] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   94.000947][  T397] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   94.001348][  T397] PKRU: 55555554
[   94.001547][  T397] Call Trace:
[   94.001734][  T397]  <TASK>
[ 94.001873][ T397] ? depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
[ 94.002137][ T397] ? __warn (kernel/panic.c:748) 
[ 94.002332][ T397] ? depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
[ 94.002600][ T397] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 94.002847][ T397] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 94.003035][ T397] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 94.003274][ T397] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 94.003548][ T397] ? depot_fetch_stack (lib/stackdepot.c:451 (discriminator 1)) 
[ 94.003933][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 94.004180][ T397] stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 94.004470][ T397] stack_depot_print (lib/stackdepot.c:745) 
[ 94.004700][ T397] print_address_description.constprop.0 (mm/kasan/report.c:343 mm/kasan/report.c:352 mm/kasan/report.c:381) 
[ 94.005022][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 94.005266][ T397] print_report (mm/kasan/report.c:489) 
[ 94.005514][ T397] ? kasan_addr_to_slab (./include/linux/mm.h:1282 mm/kasan/../slab.h:206 mm/kasan/common.c:38) 
[ 94.005771][ T397] kasan_report (mm/kasan/report.c:603) 
[ 94.005959][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 94.006205][ T397] neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 94.006449][ T397] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 94.006721][ T397] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) 
[ 94.006990][ T397] ? blocking_notifier_call_chain (kernel/notifier.c:388 kernel/notifier.c:376) 
[ 94.007304][ T397] neigh_ifdown (net/core/neighbour.c:445) 
[ 94.007491][ T397] fib_inetaddr_event (net/ipv4/fib_frontend.c:1431 net/ipv4/fib_frontend.c:1455) 
[ 94.007742][ T397] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[ 94.008020][ T397] blocking_notifier_call_chain (kernel/notifier.c:389 kernel/notifier.c:376) 
[ 94.008269][ T397] __inet_del_ifa (net/ipv4/devinet.c:488) 
[ 94.008554][ T397] inet_rtm_deladdr (net/ipv4/devinet.c:706) 
[ 94.008815][ T397] ? __pfx_inet_rtm_deladdr (net/ipv4/devinet.c:665) 
[ 94.009086][ T397] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) 
[ 94.009334][ T397] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 94.009612][ T397] ? 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) 
[ 94.009867][ T397] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 94.010070][ T397] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 94.010474][ T397] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 94.010690][ T397] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 94.010952][ T397] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 94.011214][ T397] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 94.011586][ T397] ? 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) 
[ 94.011874][ T397] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 94.012130][ T397] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 94.012384][ T397] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 94.012635][ T397] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 94.012891][ T397] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 94.013140][ T397] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) 
[ 94.013410][ T397] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 94.013664][ T397] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 94.014170][ T397] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 94.014394][ T397] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 94.014708][ T397] ___sys_sendmsg (net/socket.c:2663) 
[ 94.014959][ T397] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 94.015330][ T397] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 94.015558][ T397] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 94.015815][ T397] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 94.016121][ T397] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 94.016496][ T397] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 94.016742][ T397] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) 
[ 94.016992][ T397] ? __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) 
[ 94.017300][ T397] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) 
[ 94.017678][ T397] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 94.017913][ T397] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 94.018225][ T397] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 94.018482][ T397] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 94.018740][ T397] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 94.019004][ T397] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 94.019215][ T397] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 94.019475][ T397] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 94.019882][ T397] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) 
[ 94.020096][ T397] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 94.020349][ T397] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   94.020666][  T397] RIP: 0033:0x7feaaeef07b7
[ 94.021083][ T397] 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)
[   94.021910][  T397] RSP: 002b:00007ffd4f0cbf48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   94.022420][  T397] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feaaeef07b7
[   94.022823][  T397] RDX: 0000000000000000 RSI: 00007ffd4f0cbfb0 RDI: 0000000000000005
[   94.023231][  T397] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000078
[   94.023742][  T397] R10: 00007feaaedaeef8 R11: 0000000000000246 R12: 00007ffd4f0cc700
[   94.024132][  T397] R13: 00000000671670a7 R14: 0000000000496600 R15: 00007ffd4f0cc708
| [   94.027467][  T397] corrupt handle or use after stack_depot_put()
| [ 94.027517][ T397] WARNING: CPU: 0 PID: 397 at lib/stackdepot.c:711 stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
| [   94.028306][  T397] Modules linked in: 8021q vrf veth
| [   94.029119][  T397] Tainted: [W]=WARN
[   94.029261][  T397] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 94.029786][ T397] RIP: 0010:stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 94.030034][ T397] 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 60 af 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 60 af 	mov    $0xffffffffaf604808,%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
[   94.031052][  T397] RSP: 0018:ffffc9000071f228 EFLAGS: 00010086
[   94.031499][  T397] RAX: 0000000000000000 RBX: ffffc9000071f248 RCX: 1ffffffff5f3b43c
[   94.031803][  T397] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[   94.032177][  T397] RBP: 000000006b6b6b6b R08: 0000000000000000 R09: fffffbfff5f3b43c
[   94.032673][  T397] R10: 0000000000000003 R11: 65737520726f2065 R12: 0000000000000000
[   94.033035][  T397] R13: ffffffffae079707 R14: 0000000000000008 R15: ffff888006ada300
[   94.033405][  T397] FS:  00007feaaece4800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   94.033836][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   94.034142][  T397] CR2: 00000000004e3370 CR3: 0000000005f9a003 CR4: 0000000000772ef0
[   94.034513][  T397] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   94.035020][  T397] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   94.035399][  T397] PKRU: 55555554
[   94.035578][  T397] Call Trace:
[   94.035769][  T397]  <TASK>
[ 94.036014][ T397] ? stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 94.036215][ T397] ? __warn (kernel/panic.c:748) 
[ 94.036397][ T397] ? nbcon_get_cpu_emergency_nesting (kernel/printk/nbcon.c:1356) 
[ 94.036704][ T397] ? stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 94.037069][ T397] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 94.037298][ T397] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 94.037481][ T397] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 94.037751][ T397] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 94.038016][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 94.038395][ T397] ? stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 94.038586][ T397] ? stack_depot_fetch (lib/stackdepot.c:711 lib/stackdepot.c:691) 
[ 94.038823][ T397] stack_depot_print (lib/stackdepot.c:745) 
[ 94.039055][ T397] print_address_description.constprop.0 (mm/kasan/report.c:343 mm/kasan/report.c:352 mm/kasan/report.c:381) 
[ 94.039528][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 94.039790][ T397] print_report (mm/kasan/report.c:489) 
[ 94.040051][ T397] ? kasan_addr_to_slab (./include/linux/mm.h:1282 mm/kasan/../slab.h:206 mm/kasan/common.c:38) 
[ 94.040318][ T397] kasan_report (mm/kasan/report.c:603) 
[ 94.040520][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 94.040765][ T397] neigh_flush_dev.isra.0 (./include/linux/list.h:990 ./include/linux/rculist.h:516 net/core/neighbour.c:385) 
[ 94.041045][ T397] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 94.041316][ T397] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) 
[ 94.041510][ T397] ? blocking_notifier_call_chain (kernel/notifier.c:388 kernel/notifier.c:376) 
[ 94.041812][ T397] neigh_ifdown (net/core/neighbour.c:445) 
[ 94.042013][ T397] fib_inetaddr_event (net/ipv4/fib_frontend.c:1431 net/ipv4/fib_frontend.c:1455) 
[ 94.042258][ T397] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[ 94.042503][ T397] blocking_notifier_call_chain (kernel/notifier.c:389 kernel/notifier.c:376) 
[ 94.042897][ T397] __inet_del_ifa (net/ipv4/devinet.c:488) 
[ 94.043158][ T397] inet_rtm_deladdr (net/ipv4/devinet.c:706) 
[ 94.043404][ T397] ? __pfx_inet_rtm_deladdr (net/ipv4/devinet.c:665) 
[ 94.043695][ T397] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) 
[ 94.044113][ T397] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 94.044335][ T397] ? 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) 
[ 94.044589][ T397] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 94.044796][ T397] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 94.045067][ T397] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 94.045436][ T397] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 94.045685][ T397] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 94.045952][ T397] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 94.046221][ T397] ? 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) 
[ 94.046602][ T397] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 94.046826][ T397] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 94.047081][ T397] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 94.047337][ T397] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 94.047581][ T397] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 94.047836][ T397] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) 
[ 94.048090][ T397] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 94.048350][ T397] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 94.048764][ T397] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 94.048969][ T397] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 94.049292][ T397] ___sys_sendmsg (net/socket.c:2663) 
[ 94.049543][ T397] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 94.049917][ T397] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 94.050154][ T397] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 94.050404][ T397] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 94.050714][ T397] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 94.051208][ T397] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 94.051413][ T397] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) 
[ 94.051663][ T397] ? __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) 
[ 94.051977][ T397] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) 
[ 94.052353][ T397] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 94.052589][ T397] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 94.052901][ T397] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 94.053157][ T397] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 94.053574][ T397] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 94.053789][ T397] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 94.053912][ T397] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 94.054072][ T397] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 94.054230][ T397] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) 
[ 94.054417][ T397] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 94.054611][ T397] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   94.054807][  T397] RIP: 0033:0x7feaaeef07b7
[ 94.054971][ T397] 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)
[   94.055618][  T397] RSP: 002b:00007ffd4f0cbf48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   94.055949][  T397] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feaaeef07b7
[   94.056182][  T397] RDX: 0000000000000000 RSI: 00007ffd4f0cbfb0 RDI: 0000000000000005
[   94.056416][  T397] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000078
[   94.056735][  T397] R10: 00007feaaedaeef8 R11: 0000000000000246 R12: 00007ffd4f0cc700
[   94.057000][  T397] R13: 00000000671670a7 R14: 0000000000496600 R15: 00007ffd4f0cc708
| [   94.065190][  T397] Disabling lock debugging due to kernel taint
| [   94.065573][  T397] Oops: general protection fault, probably for non-canonical address 0xed6d696d6d6d6d6d: 0000 [#1] PREEMPT SMP KASAN NOPTI
| [   94.065939][  T397] KASAN: maybe wild-memory-access in range [0x6b6b6b6b6b6b6b68-0x6b6b6b6b6b6b6b6f]
| [   94.066476][  T397] Tainted: [B]=BAD_PAGE, [W]=WARN
[   94.066624][  T397] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 94.067037][ T397] RIP: 0010:neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[ 94.067229][ T397] 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
[   94.067844][  T397] RSP: 0018:ffffc9000071f388 EFLAGS: 00010202
[   94.068033][  T397] RAX: 0d6d6d6d6d6d6d6d RBX: 6b6b6b6b6b6b6b6b RCX: ffffffffae0796f0
[   94.068261][  T397] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88800205cc08
[   94.068490][  T397] RBP: 6b6b6b6b6b6b6b6b R08: 0000000000000000 R09: 0000000000000000
[   94.068714][  T397] R10: ffffffffb0571f0f R11: ffffffffac7ec8d4 R12: ffff88800205cd3c
[   94.069017][  T397] R13: dffffc0000000000 R14: ffff8880079c1000 R15: ffff88800205cc00
[   94.069235][  T397] FS:  00007feaaece4800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   94.069492][  T397] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   94.069763][  T397] CR2: 00000000004e3370 CR3: 0000000005f9a003 CR4: 0000000000772ef0
[   94.069984][  T397] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   94.070205][  T397] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   94.070422][  T397] PKRU: 55555554
[   94.070536][  T397] Call Trace:
[   94.070652][  T397]  <TASK>
[ 94.070728][ T397] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) 
[ 94.070848][ T397] ? exc_general_protection (arch/x86/kernel/traps.c:751 arch/x86/kernel/traps.c:693) 
[ 94.071090][ T397] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) 
[ 94.071236][ T397] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 94.071382][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:986 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[ 94.071540][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:988 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[ 94.071766][ T397] ? neigh_flush_dev.isra.0 (./include/linux/list.h:986 ./include/linux/rculist.h:516 net/core/neighbour.c:384) 
[ 94.071907][ T397] ? lock_acquire (kernel/locking/lockdep.c:5798) 
[ 94.072043][ T397] __neigh_ifdown.isra.0 (net/core/neighbour.c:826 net/core/neighbour.c:426) 
[ 94.072184][ T397] ? blocking_notifier_call_chain (kernel/notifier.c:388 kernel/notifier.c:376) 
[ 94.072436][ T397] neigh_ifdown (net/core/neighbour.c:445) 
[ 94.072542][ T397] fib_inetaddr_event (net/ipv4/fib_frontend.c:1431 net/ipv4/fib_frontend.c:1455) 
[ 94.072675][ T397] notifier_call_chain (kernel/notifier.c:93 (discriminator 2)) 
[ 94.072826][ T397] blocking_notifier_call_chain (kernel/notifier.c:389 kernel/notifier.c:376) 
[ 94.073033][ T397] __inet_del_ifa (net/ipv4/devinet.c:488) 
[ 94.073188][ T397] inet_rtm_deladdr (net/ipv4/devinet.c:706) 
[ 94.073334][ T397] ? __pfx_inet_rtm_deladdr (net/ipv4/devinet.c:665) 
[ 94.073473][ T397] rtnetlink_rcv_msg (net/core/rtnetlink.c:6721) 
[ 94.073628][ T397] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 94.073912][ T397] ? 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) 
[ 94.074071][ T397] ? mark_lock (kernel/locking/lockdep.c:4703 (discriminator 3)) 
[ 94.074172][ T397] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 94.074312][ T397] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 94.074536][ T397] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6615) 
[ 94.074674][ T397] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 94.074814][ T397] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 94.074981][ T397] ? 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) 
[ 94.075216][ T397] netlink_unicast (net/netlink/af_netlink.c:1331 net/netlink/af_netlink.c:1357) 
[ 94.075379][ T397] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1342) 
[ 94.075530][ T397] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 94.075678][ T397] netlink_sendmsg (net/netlink/af_netlink.c:1901) 
[ 94.075825][ T397] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1820) 
[ 94.076055][ T397] ? __might_fault (mm/memory.c:6700 mm/memory.c:6693) 
[ 94.076201][ T397] ? __import_iovec (lib/iov_iter.c:1433 lib/iov_iter.c:1449) 
[ 94.076368][ T397] ____sys_sendmsg (net/socket.c:729 net/socket.c:744 net/socket.c:2607) 
[ 94.076499][ T397] ? __pfx_____sys_sendmsg (net/socket.c:2553) 
[ 94.076742][ T397] ? __pfx_copy_msghdr_from_user (net/socket.c:2533) 
[ 94.076933][ T397] ___sys_sendmsg (net/socket.c:2663) 
[ 94.077091][ T397] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) 
[ 94.077244][ T397] ? __pfx____sys_sendmsg (net/socket.c:2650) 
[ 94.077469][ T397] ? __pfx_validate_chain (kernel/locking/lockdep.c:3860) 
[ 94.077604][ T397] ? __pfx_slab_free_after_rcu_debug (mm/slub.c:4609) 
[ 94.077769][ T397] ? kasan_save_stack (mm/kasan/common.c:49) 
[ 94.077898][ T397] ? kasan_save_stack (mm/kasan/common.c:48) 
[ 94.078108][ T397] ? __kasan_record_aux_stack (mm/kasan/generic.c:541) 
[ 94.078244][ T397] ? __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) 
[ 94.078414][ T397] ? __x64_sys_close (fs/open.c:1568 fs/open.c:1550 fs/open.c:1550) 
[ 94.078568][ T397] ? do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 94.078808][ T397] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 94.078968][ T397] ? __lock_acquire (kernel/locking/lockdep.c:5202) 
[ 94.079112][ T397] ? find_held_lock (kernel/locking/lockdep.c:5315) 
[ 94.079248][ T397] ? __lock_release (kernel/locking/lockdep.c:5501) 
[ 94.079460][ T397] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1114 fs/file.c:1128) 
[ 94.079568][ T397] __sys_sendmsg (./include/linux/file.h:35 net/socket.c:2692) 
[ 94.079699][ T397] ? __pfx___sys_sendmsg (net/socket.c:2678) 
[ 94.079828][ T397] ? __virt_addr_valid (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:962 ./include/linux/mmzone.h:2053 arch/x86/mm/physaddr.c:65) 
[ 94.080043][ T397] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 94.080175][ T397] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   94.080351][  T397] RIP: 0033:0x7feaaeef07b7
[ 94.080492][ T397] 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)
[   94.081047][  T397] RSP: 002b:00007ffd4f0cbf48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   94.081247][  T397] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007feaaeef07b7
[   94.081533][  T397] RDX: 0000000000000000 RSI: 00007ffd4f0cbfb0 RDI: 0000000000000005
[   94.081728][  T397] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000078
[   94.082002][  T397] R10: 00007feaaedaeef8 R11: 0000000000000246 R12: 00007ffd4f0cc700


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