======================================
| [   88.793850][  T620] ==================================================================
| [   88.794193][  T620] 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)
| [   88.794483][  T620] Write of size 8 at addr 0000000000000000 by task ip/620
| [   88.794703][  T620]
[   88.794842][  T620] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.794844][  T620] Call Trace:
[   88.794848][  T620]  <TASK>
[   88.794849][  T620]  dump_stack_lvl (lib/dump_stack.c:123)
[   88.794861][  T620]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   88.794864][  T620]  kasan_report (mm/kasan/report.c:597)
[   88.794871][  T620]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   88.794877][  T620]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   88.794880][  T620]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   88.794885][  T620]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   88.794888][  T620]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   88.794893][  T620]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   88.794899][  T620]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   88.794908][  T620]  __cancel_work_sync (kernel/workqueue.c:4383)
[   88.794914][  T620]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   88.794925][  T620]  ? netdev_notify_peers (net/core/dev.c:1891)
[   88.794930][  T620]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   88.794937][  T620]  __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)
[   88.794940][  T620]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   88.794945][  T620]  ? netif_set_allmulti (net/core/dev.c:9890)
[   88.794947][  T620]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   88.794954][  T620]  netif_change_flags (net/core/dev.c:9989)
[   88.794958][  T620]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   88.794963][  T620]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   88.794971][  T620]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   88.794977][  T620]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   88.794982][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.794987][  T620]  ? __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)
[   88.794991][  T620]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   88.794994][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   88.794998][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   88.795002][  T620]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   88.795005][  T620]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   88.795013][  T620]  ? __create_object (mm/kmemleak.c:786)
[   88.795018][  T620]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   88.795021][  T620]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   88.795025][  T620]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   88.795028][  T620]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   88.795035][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   88.795041][  T620]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   88.795046][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   88.795048][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.795056][  T620]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   88.795060][  T620]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   88.795062][  T620]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   88.795070][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   88.795074][  T620]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   88.795080][  T620]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   88.795084][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.795091][  T620]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   88.795100][  T620]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   88.795103][  T620]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   88.795110][  T620]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   88.795113][  T620]  ? 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)
[   88.795117][  T620]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   88.795121][  T620]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   88.795125][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.795131][  T620]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   88.795136][  T620]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   88.795139][  T620]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   88.795147][  T620]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   88.795150][  T620]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   88.795155][  T620]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   88.795159][  T620]  ? __copy_msghdr (net/socket.c:2556)
[   88.795166][  T620]  ___sys_sendmsg (net/socket.c:2686)
[   88.795169][  T620]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   88.795172][  T620]  ? __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)
[   88.795177][  T620]  ? copy_msghdr_from_user (net/socket.c:2673)
[   88.795183][  T620]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   88.795187][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.795193][  T620]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   88.795196][  T620]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   88.795203][  T620]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   88.795210][  T620]  __sys_sendmsg (net/socket.c:2716)
[   88.795213][  T620]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   88.795216][  T620]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   88.795224][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   88.795228][  T620]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   88.795234][  T620]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   88.795237][  T620] RIP: 0033:0x7fc41584e1d7
[   88.795244][  T620] 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)
[   88.795248][  T620] RSP: 002b:00007fff084908a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   88.795255][  T620] RAX: ffffffffffffffda RBX: 00007fff08490fd0 RCX: 00007fc41584e1d7
[   88.795257][  T620] RDX: 0000000000000000 RSI: 00007fff08490910 RDI: 0000000000000005
[   88.795259][  T620] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   88.795260][  T620] R10: 00007fc41574af60 R11: 0000000000000246 R12: 0000000000000003
[   88.795262][  T620] R13: 00000000691cd847 R14: 0000000000499600 R15: 0000000000000000
| [   88.813889][  T620] #PF: error_code(0x0002) - not-present page
| [   88.814119][  T620] PGD deb4067 P4D deb4067 PUD dec8067 PMD 0
| [   88.814349][  T620] Oops: Oops: 0002 [#1] SMP KASAN
| [   88.814996][  T620] Tainted: [B]=BAD_PAGE
[   88.815133][  T620] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.815351][  T620] 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)
[   88.815585][  T620] 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
[   88.816345][  T620] RSP: 0018:ffffc90001086f40 EFLAGS: 00010046
[   88.816569][  T620] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffb9a4090a
[   88.816834][  T620] RDX: fffffbfff7b8f2cd RSI: 0000000000000008 RDI: ffffffffbdc79660
[   88.817232][  T620] RBP: ffffc90001086fa8 R08: 0000000000000001 R09: fffffbfff7b8f2cc
[   88.817491][  T620] R10: ffffffffbdc79667 R11: ffffc90001086a00 R12: 0000000000000000
[   88.817748][  T620] R13: 0000000000000282 R14: ffff88800a961000 R15: dffffc0000000000
[   88.818132][  T620] FS:  00007fc415680800(0000) GS:ffff888078672000(0000) knlGS:0000000000000000
[   88.818436][  T620] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   88.818759][  T620] CR2: 0000000000000000 CR3: 0000000008ecf006 CR4: 0000000000772ef0
[   88.819035][  T620] PKRU: 55555554
[   88.819173][  T620] Call Trace:
[   88.819307][  T620]  <TASK>
[   88.819398][  T620]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   88.819571][  T620]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   88.819750][  T620]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   88.819960][  T620]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   88.820156][  T620]  __cancel_work_sync (kernel/workqueue.c:4383)
[   88.820434][  T620]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   88.820604][  T620]  ? netdev_notify_peers (net/core/dev.c:1891)
[   88.820773][  T620]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   88.820974][  T620]  __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)
[   88.821263][  T620]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   88.821438][  T620]  ? netif_set_allmulti (net/core/dev.c:9890)
[   88.821610][  T620]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   88.821790][  T620]  netif_change_flags (net/core/dev.c:9989)
[   88.822088][  T620]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   88.822261][  T620]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   88.822437][  T620]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   88.822614][  T620]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   88.822894][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.823088][  T620]  ? __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)
[   88.823257][  T620]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   88.823433][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   88.823717][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   88.823888][  T620]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   88.824085][  T620]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   88.824260][  T620]  ? __create_object (mm/kmemleak.c:786)
[   88.824538][  T620]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   88.824712][  T620]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   88.824883][  T620]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   88.825069][  T620]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   88.825348][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   88.825529][  T620]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   88.825709][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   88.825883][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.826198][  T620]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   88.826368][  T620]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   88.826543][  T620]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   88.826715][  T620]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   88.827009][  T620]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   88.827195][  T620]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   88.827368][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.827547][  T620]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   88.827827][  T620]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   88.828031][  T620]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   88.828212][  T620]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   88.828379][  T620]  ? 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)
[   88.828572][  T620]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   88.828765][  T620]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   88.828951][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.829136][  T620]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   88.829412][  T620]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   88.829596][  T620]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   88.829768][  T620]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   88.829950][  T620]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   88.830244][  T620]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   88.830464][  T620]  ? __copy_msghdr (net/socket.c:2556)
[   88.830641][  T620]  ___sys_sendmsg (net/socket.c:2686)
[   88.830809][  T620]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   88.831105][  T620]  ? __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)
[   88.831318][  T620]  ? copy_msghdr_from_user (net/socket.c:2673)
[   88.831488][  T620]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   88.831763][  T620]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   88.831967][  T620]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   88.832162][  T620]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   88.832348][  T620]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   88.832641][  T620]  __sys_sendmsg (net/socket.c:2716)
[   88.832825][  T620]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   88.833062][  T620]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   88.833258][  T620]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   88.833546][  T620]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   88.833725][  T620]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   88.833947][  T620] RIP: 0033:0x7fc41584e1d7
[   88.834136][  T620] 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)
[   88.834857][  T620] RSP: 002b:00007fff084908a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   88.835253][  T620] RAX: ffffffffffffffda RBX: 00007fff08490fd0 RCX: 00007fc41584e1d7
[   88.835505][  T620] RDX: 0000000000000000 RSI: 00007fff08490910 RDI: 0000000000000005
[   88.835758][  T620] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   88.836134][  T620] R10: 00007fc41574af60 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