======================================
| [   37.986379][  T510] ==================================================================
| [   37.986693][  T510] BUG: KASAN: null-ptr-deref in try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
| [   37.987020][  T510] Write of size 8 at addr 0000000000000000 by task ip/510
| [   37.987252][  T510]
[   37.987364][  T510] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.987368][  T510] Call Trace:
[   37.987373][  T510]  <TASK>
[   37.987375][  T510]  dump_stack_lvl (lib/dump_stack.c:123)
[   37.987399][  T510]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   37.987402][  T510]  kasan_report (mm/kasan/report.c:597)
[   37.987415][  T510]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   37.987421][  T510]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   37.987424][  T510]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   37.987430][  T510]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   37.987433][  T510]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   37.987437][  T510]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   37.987440][  T510]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   37.987450][  T510]  __cancel_work_sync (kernel/workqueue.c:4383)
[   37.987454][  T510]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   37.987470][  T510]  ? netdev_notify_peers (net/core/dev.c:1891)
[   37.987475][  T510]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   37.987482][  T510]  __dev_change_flags (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1945 net/core/dev.c:9924)
[   37.987486][  T510]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   37.987497][  T510]  ? netif_set_allmulti (net/core/dev.c:9890)
[   37.987500][  T510]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   37.987508][  T510]  netif_change_flags (net/core/dev.c:9989)
[   37.987512][  T510]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   37.987520][  T510]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   37.987526][  T510]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.987536][  T510]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   37.987542][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   37.987547][  T510]  ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113)
[   37.987551][  T510]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   37.987554][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   37.987562][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   37.987565][  T510]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   37.987568][  T510]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   37.987583][  T510]  ? __create_object (mm/kmemleak.c:786)
[   37.987589][  T510]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   37.987593][  T510]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   37.987596][  T510]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   37.987601][  T510]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   37.987615][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   37.987621][  T510]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   37.987626][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   37.987629][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   37.987635][  T510]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   37.987639][  T510]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   37.987641][  T510]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   37.987646][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   37.987649][  T510]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   37.987652][  T510]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   37.987655][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   37.987663][  T510]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   37.987669][  T510]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   37.987673][  T510]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   37.987680][  T510]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   37.987683][  T510]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[   37.987687][  T510]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   37.987691][  T510]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   37.987695][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   37.987701][  T510]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   37.987707][  T510]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   37.987714][  T510]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   37.987733][  T510]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   37.987739][  T510]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   37.987750][  T510]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   37.987753][  T510]  ? __copy_msghdr (net/socket.c:2556)
[   37.987761][  T510]  ___sys_sendmsg (net/socket.c:2686)
[   37.987764][  T510]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   37.987768][  T510]  ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3125)
[   37.987776][  T510]  ? copy_msghdr_from_user (net/socket.c:2673)
[   37.987781][  T510]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   37.987785][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   37.987791][  T510]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   37.987795][  T510]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   37.987808][  T510]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   37.987815][  T510]  __sys_sendmsg (net/socket.c:2716)
[   37.987818][  T510]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   37.987822][  T510]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   37.987830][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   37.987834][  T510]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   37.987840][  T510]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   37.987850][  T510] RIP: 0033:0x7f8f1b8ba1d7
[   37.987855][  T510] Code: 0e 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:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   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)
[   37.987858][  T510] RSP: 002b:00007ffee9c7ef28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.987868][  T510] RAX: ffffffffffffffda RBX: 00007ffee9c7f650 RCX: 00007f8f1b8ba1d7
[   37.987871][  T510] RDX: 0000000000000000 RSI: 00007ffee9c7ef90 RDI: 0000000000000005
[   37.987873][  T510] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   37.987875][  T510] R10: 00007f8f1b7b6f60 R11: 0000000000000246 R12: 0000000000000003
[   37.987877][  T510] R13: 00000000691ccbac R14: 0000000000499600 R15: 0000000000000000
| [   38.006548][  T510] #PF: error_code(0x0002) - not-present page
| [   38.006805][  T510] PGD f1e6067 P4D f1e6067 PUD f1fa067 PMD 0
| [   38.007075][  T510] Oops: Oops: 0002 [#1] SMP KASAN
| [   38.007718][  T510] Tainted: [B]=BAD_PAGE
[   38.007908][  T510] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.008175][  T510] RIP: 0010:try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   38.008452][  T510] Code: 00 41 89 c0 b8 01 00 00 00 45 85 c0 74 0f 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 be 08 00 00 00 48 89 df e8 7f 7f 81 00 <f0> 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
All code
========
   0:	00 41 89             	add    %al,-0x77(%rcx)
   3:	c0 b8 01 00 00 00 45 	sarb   $0x45,0x1(%rax)
   a:	85 c0                	test   %eax,%eax
   c:	74 0f                	je     0x1d
   e:	48 83 c4 10          	add    $0x10,%rsp
  12:	5b                   	pop    %rbx
  13:	5d                   	pop    %rbp
  14:	41 5c                	pop    %r12
  16:	41 5d                	pop    %r13
  18:	41 5e                	pop    %r14
  1a:	41 5f                	pop    %r15
  1c:	c3                   	ret
  1d:	be 08 00 00 00       	mov    $0x8,%esi
  22:	48 89 df             	mov    %rbx,%rdi
  25:	e8 7f 7f 81 00       	call   0x817fa9
  2a:*	f0 48 0f ba 2b 00    	lock btsq $0x0,(%rbx)		<-- trapping instruction
  30:	72 11                	jb     0x43
  32:	48 83 c4 10          	add    $0x10,%rsp
  36:	31 c0                	xor    %eax,%eax
  38:	5b                   	pop    %rbx
  39:	5d                   	pop    %rbp
  3a:	41 5c                	pop    %r12
  3c:	41 5d                	pop    %r13
  3e:	41 5e                	pop    %r14

Code starting with the faulting instruction
===========================================
   0:	f0 48 0f ba 2b 00    	lock btsq $0x0,(%rbx)
   6:	72 11                	jb     0x19
   8:	48 83 c4 10          	add    $0x10,%rsp
   c:	31 c0                	xor    %eax,%eax
   e:	5b                   	pop    %rbx
   f:	5d                   	pop    %rbp
  10:	41 5c                	pop    %r12
  12:	41 5d                	pop    %r13
  14:	41 5e                	pop    %r14
[   38.009193][  T510] RSP: 0018:ffffc90000d86f40 EFLAGS: 00010046
[   38.009467][  T510] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9d44090a
[   38.009781][  T510] RDX: fffffbfff42cf2cd RSI: 0000000000000008 RDI: ffffffffa1679660
[   38.010094][  T510] RBP: ffffc90000d86fa8 R08: 0000000000000001 R09: fffffbfff42cf2cc
[   38.010412][  T510] R10: ffffffffa1679667 R11: ffffc90000d86a00 R12: 0000000000000000
[   38.010748][  T510] R13: 0000000000000282 R14: ffff88800c1c9000 R15: dffffc0000000000
[   38.011062][  T510] FS:  00007f8f1b6ec800(0000) GS:ffff888094bf2000(0000) knlGS:0000000000000000
[   38.011423][  T510] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.011699][  T510] CR2: 0000000000000000 CR3: 000000000f1ef005 CR4: 0000000000772ef0
[   38.012011][  T510] PKRU: 55555554
[   38.012169][  T510] Call Trace:
[   38.012327][  T510]  <TASK>
[   38.012448][  T510]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   38.012667][  T510]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   38.012894][  T510]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   38.013102][  T510]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   38.013319][  T510]  __cancel_work_sync (kernel/workqueue.c:4383)
[   38.013528][  T510]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   38.013738][  T510]  ? netdev_notify_peers (net/core/dev.c:1891)
[   38.013945][  T510]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   38.014152][  T510]  __dev_change_flags (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1945 net/core/dev.c:9924)
[   38.014359][  T510]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   38.014568][  T510]  ? netif_set_allmulti (net/core/dev.c:9890)
[   38.014884][  T510]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   38.015094][  T510]  netif_change_flags (net/core/dev.c:9989)
[   38.015299][  T510]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   38.015508][  T510]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   38.015820][  T510]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.016028][  T510]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   38.016236][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   38.016453][  T510]  ? __mutex_trylock_common (./arch/x86/include/asm/atomic64_64.h:101 ./include/linux/atomic/atomic-arch-fallback.h:4296 ./include/linux/atomic/atomic-long.h:1482 ./include/linux/atomic/atomic-instrumented.h:4458 kernel/locking/mutex.c:113)
[   38.016763][  T510]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   38.016970][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   38.017178][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   38.017383][  T510]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   38.017694][  T510]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   38.017903][  T510]  ? __create_object (mm/kmemleak.c:786)
[   38.018114][  T510]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   38.018321][  T510]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   38.018637][  T510]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   38.018846][  T510]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   38.019053][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   38.019262][  T510]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   38.019470][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   38.019677][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   38.019891][  T510]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   38.020096][  T510]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   38.020407][  T510]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   38.020615][  T510]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   38.020823][  T510]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   38.021031][  T510]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   38.021342][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   38.021551][  T510]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   38.021762][  T510]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   38.021968][  T510]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   38.022282][  T510]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   38.022488][  T510]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333)
[   38.022798][  T510]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   38.023009][  T510]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   38.023321][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   38.023530][  T510]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   38.023742][  T510]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   38.023949][  T510]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   38.024260][  T510]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   38.024466][  T510]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   38.024674][  T510]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   38.024929][  T510]  ? __copy_msghdr (net/socket.c:2556)
[   38.025244][  T510]  ___sys_sendmsg (net/socket.c:2686)
[   38.025450][  T510]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   38.025662][  T510]  ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3125)
[   38.025921][  T510]  ? copy_msghdr_from_user (net/socket.c:2673)
[   38.026234][  T510]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   38.026450][  T510]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   38.026659][  T510]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   38.026866][  T510]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   38.027177][  T510]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   38.027388][  T510]  __sys_sendmsg (net/socket.c:2716)
[   38.027597][  T510]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   38.027852][  T510]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   38.028167][  T510]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   38.028374][  T510]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   38.028583][  T510]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   38.028952][  T510] RIP: 0033:0x7f8f1b8ba1d7
[   38.029179][  T510] Code: 0e 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:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   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)
[   38.030035][  T510] RSP: 002b:00007ffee9c7ef28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   38.030349][  T510] RAX: ffffffffffffffda RBX: 00007ffee9c7f650 RCX: 00007f8f1b8ba1d7
[   38.030672][  T510] RDX: 0000000000000000 RSI: 00007ffee9c7ef90 RDI: 0000000000000005
[   38.031105][  T510] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   38.031420][  T510] R10: 00007f8f1b7b6f60 R11: 0000000000000246 R12: 0000000000000003


Finger prints:
try_to_grab_pending:__cancel_work:__cancel_work_sync:__dev_close_many:__dev_change_flags
kasan_report:kasan_check_range:try_to_grab_pending:__cancel_work:__cancel_work_sync