======================================
| [   52.569798][  T519] ==================================================================
| [   52.570199][  T519] 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)
| [   52.570564][  T519] Write of size 8 at addr 0000000000000000 by task ip/519
| [   52.570835][  T519]
[   52.570956][  T519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.570962][  T519] Call Trace:
[   52.570965][  T519]  <TASK>
[   52.570967][  T519]  dump_stack_lvl (lib/dump_stack.c:123)
[   52.570987][  T519]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   52.570991][  T519]  kasan_report (mm/kasan/report.c:597)
[   52.571002][  T519]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   52.571007][  T519]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   52.571011][  T519]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   52.571017][  T519]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   52.571020][  T519]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   52.571024][  T519]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   52.571027][  T519]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   52.571036][  T519]  __cancel_work_sync (kernel/workqueue.c:4383)
[   52.571040][  T519]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   52.571055][  T519]  ? netdev_notify_peers (net/core/dev.c:1891)
[   52.571069][  T519]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   52.571085][  T519]  __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)
[   52.571091][  T519]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   52.571100][  T519]  ? netif_set_allmulti (net/core/dev.c:9890)
[   52.571103][  T519]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   52.571110][  T519]  netif_change_flags (net/core/dev.c:9989)
[   52.571115][  T519]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   52.571122][  T519]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   52.571127][  T519]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.571136][  T519]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   52.571141][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.571146][  T519]  ? __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)
[   52.571151][  T519]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   52.571155][  T519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   52.571162][  T519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   52.571165][  T519]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   52.571168][  T519]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   52.571182][  T519]  ? __create_object (mm/kmemleak.c:786)
[   52.571185][  T519]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   52.571189][  T519]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   52.571192][  T519]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   52.571195][  T519]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   52.571206][  T519]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   52.571211][  T519]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   52.571216][  T519]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   52.571219][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.571225][  T519]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.571228][  T519]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   52.571231][  T519]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   52.571235][  T519]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   52.571238][  T519]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   52.571242][  T519]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   52.571244][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.571252][  T519]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   52.571259][  T519]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   52.571263][  T519]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   52.571270][  T519]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   52.571273][  T519]  ? 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)
[   52.571277][  T519]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   52.571281][  T519]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   52.571285][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.571290][  T519]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   52.571295][  T519]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   52.571298][  T519]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   52.571310][  T519]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   52.571313][  T519]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   52.571325][  T519]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   52.571331][  T519]  ? __copy_msghdr (net/socket.c:2556)
[   52.571341][  T519]  ___sys_sendmsg (net/socket.c:2686)
[   52.571345][  T519]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   52.571350][  T519]  ? __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)
[   52.571358][  T519]  ? copy_msghdr_from_user (net/socket.c:2673)
[   52.571363][  T519]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.571367][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.571373][  T519]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.571377][  T519]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   52.571388][  T519]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   52.571394][  T519]  __sys_sendmsg (net/socket.c:2716)
[   52.571399][  T519]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   52.571404][  T519]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   52.571411][  T519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   52.571415][  T519]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.571421][  T519]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   52.571429][  T519] RIP: 0033:0x7fe857c1d1d7
[   52.571441][  T519] 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)
[   52.571445][  T519] RSP: 002b:00007ffe8c4c89f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   52.571453][  T519] RAX: ffffffffffffffda RBX: 00007ffe8c4c9120 RCX: 00007fe857c1d1d7
[   52.571455][  T519] RDX: 0000000000000000 RSI: 00007ffe8c4c8a60 RDI: 0000000000000005
[   52.571457][  T519] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   52.571459][  T519] R10: 00007fe857b19f60 R11: 0000000000000246 R12: 0000000000000003
[   52.571460][  T519] R13: 00000000691cc8f6 R14: 0000000000499600 R15: 0000000000000000
| [   52.590887][  T519] #PF: error_code(0x0002) - not-present page
| [   52.591133][  T519] PGD 4f94067 P4D 4f94067 PUD bfd5067 PMD 0
| [   52.591372][  T519] Oops: Oops: 0002 [#1] SMP KASAN
| [   52.591922][  T519] Tainted: [B]=BAD_PAGE
[   52.592078][  T519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.592307][  T519] 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)
[   52.592580][  T519] 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
[   52.593233][  T519] RSP: 0018:ffffc90000e26f40 EFLAGS: 00010046
[   52.593472][  T519] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9ec4090a
[   52.593746][  T519] RDX: fffffbfff45cf2cd RSI: 0000000000000008 RDI: ffffffffa2e79660
[   52.594009][  T519] RBP: ffffc90000e26fa8 R08: 0000000000000001 R09: fffffbfff45cf2cc
[   52.594290][  T519] R10: ffffffffa2e79667 R11: ffffc90000e26a00 R12: 0000000000000000
[   52.594584][  T519] R13: 0000000000000282 R14: ffff888005064000 R15: dffffc0000000000
[   52.594852][  T519] FS:  00007fe857a4f800(0000) GS:ffff888093572000(0000) knlGS:0000000000000000
[   52.595202][  T519] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   52.595482][  T519] CR2: 0000000000000000 CR3: 000000000bb44003 CR4: 0000000000772ef0
[   52.595777][  T519] PKRU: 55555554
[   52.595923][  T519] Call Trace:
[   52.596074][  T519]  <TASK>
[   52.596170][  T519]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   52.596377][  T519]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   52.596571][  T519]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   52.596743][  T519]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   52.596960][  T519]  __cancel_work_sync (kernel/workqueue.c:4383)
[   52.597144][  T519]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   52.597320][  T519]  ? netdev_notify_peers (net/core/dev.c:1891)
[   52.597526][  T519]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   52.597714][  T519]  __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)
[   52.597899][  T519]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   52.598097][  T519]  ? netif_set_allmulti (net/core/dev.c:9890)
[   52.598275][  T519]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   52.598469][  T519]  netif_change_flags (net/core/dev.c:9989)
[   52.598656][  T519]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   52.598844][  T519]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   52.599045][  T519]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.599256][  T519]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   52.599512][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.599688][  T519]  ? __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)
[   52.599862][  T519]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   52.600047][  T519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   52.600238][  T519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   52.600450][  T519]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   52.600646][  T519]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   52.600834][  T519]  ? __create_object (mm/kmemleak.c:786)
[   52.601014][  T519]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   52.601211][  T519]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   52.601397][  T519]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   52.601576][  T519]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   52.601755][  T519]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   52.601938][  T519]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   52.602121][  T519]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   52.602290][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.602502][  T519]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.602714][  T519]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   52.602889][  T519]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   52.603080][  T519]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   52.603252][  T519]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   52.603431][  T519]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   52.603629][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.603807][  T519]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   52.604013][  T519]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   52.604224][  T519]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   52.604415][  T519]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   52.604623][  T519]  ? 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)
[   52.604813][  T519]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   52.604992][  T519]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   52.605167][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.605350][  T519]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   52.605526][  T519]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   52.605718][  T519]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   52.605913][  T519]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   52.606103][  T519]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   52.606289][  T519]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   52.606557][  T519]  ? __copy_msghdr (net/socket.c:2556)
[   52.606729][  T519]  ___sys_sendmsg (net/socket.c:2686)
[   52.606912][  T519]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   52.607105][  T519]  ? __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)
[   52.607323][  T519]  ? copy_msghdr_from_user (net/socket.c:2673)
[   52.607504][  T519]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.607687][  T519]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   52.607859][  T519]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   52.608038][  T519]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   52.608218][  T519]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   52.608403][  T519]  __sys_sendmsg (net/socket.c:2716)
[   52.608596][  T519]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   52.608805][  T519]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   52.608987][  T519]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   52.609163][  T519]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   52.609356][  T519]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   52.609579][  T519] RIP: 0033:0x7fe857c1d1d7
[   52.609763][  T519] 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)
[   52.610415][  T519] RSP: 002b:00007ffe8c4c89f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   52.610689][  T519] RAX: ffffffffffffffda RBX: 00007ffe8c4c9120 RCX: 00007fe857c1d1d7
[   52.610955][  T519] RDX: 0000000000000000 RSI: 00007ffe8c4c8a60 RDI: 0000000000000005
[   52.611230][  T519] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   52.611505][  T519] R10: 00007fe857b19f60 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