======================================
| [   31.005236][  T368] ==================================================================
| [   31.005640][  T368] 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)
| [   31.006004][  T368] Write of size 8 at addr 0000000000000000 by task ip/368
| [   31.006265][  T368]
[   31.006395][  T368] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.006398][  T368] Call Trace:
[   31.006403][  T368]  <TASK>
[   31.006406][  T368]  dump_stack_lvl (lib/dump_stack.c:123)
[   31.006436][  T368]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   31.006443][  T368]  kasan_report (mm/kasan/report.c:597)
[   31.006458][  T368]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   31.006464][  T368]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   31.006467][  T368]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   31.006473][  T368]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   31.006477][  T368]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   31.006481][  T368]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   31.006484][  T368]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.006493][  T368]  __cancel_work_sync (kernel/workqueue.c:4383)
[   31.006497][  T368]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   31.006512][  T368]  ? netdev_notify_peers (net/core/dev.c:1891)
[   31.006517][  T368]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   31.006525][  T368]  __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)
[   31.006528][  T368]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   31.006539][  T368]  ? netif_set_allmulti (net/core/dev.c:9890)
[   31.006542][  T368]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   31.006550][  T368]  netif_change_flags (net/core/dev.c:9989)
[   31.006554][  T368]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   31.006563][  T368]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   31.006569][  T368]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.006581][  T368]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   31.006586][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.006591][  T368]  ? __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)
[   31.006595][  T368]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   31.006599][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   31.006607][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   31.006610][  T368]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   31.006613][  T368]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   31.006633][  T368]  ? __create_object (mm/kmemleak.c:786)
[   31.006640][  T368]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   31.006644][  T368]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   31.006647][  T368]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   31.006650][  T368]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   31.006665][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   31.006670][  T368]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   31.006675][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   31.006681][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.006687][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.006691][  T368]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   31.006693][  T368]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   31.006698][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   31.006704][  T368]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   31.006710][  T368]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   31.006714][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.006723][  T368]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   31.006737][  T368]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   31.006750][  T368]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   31.006759][  T368]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   31.006762][  T368]  ? 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)
[   31.006766][  T368]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   31.006771][  T368]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   31.006775][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.006782][  T368]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   31.006790][  T368]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   31.006795][  T368]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   31.006812][  T368]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   31.006816][  T368]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   31.006827][  T368]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   31.006830][  T368]  ? __copy_msghdr (net/socket.c:2556)
[   31.006838][  T368]  ___sys_sendmsg (net/socket.c:2686)
[   31.006841][  T368]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   31.006844][  T368]  ? __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)
[   31.006852][  T368]  ? copy_msghdr_from_user (net/socket.c:2673)
[   31.006858][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.006862][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.006868][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.006874][  T368]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   31.006893][  T368]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   31.006900][  T368]  __sys_sendmsg (net/socket.c:2716)
[   31.006903][  T368]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   31.006907][  T368]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   31.006915][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   31.006919][  T368]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.006925][  T368]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   31.006936][  T368] RIP: 0033:0x7f81517f31d7
[   31.006944][  T368] 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)
[   31.006948][  T368] RSP: 002b:00007ffc398781e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.006959][  T368] RAX: ffffffffffffffda RBX: 00007ffc39878910 RCX: 00007f81517f31d7
[   31.006962][  T368] RDX: 0000000000000000 RSI: 00007ffc39878250 RDI: 0000000000000005
[   31.006963][  T368] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   31.006965][  T368] R10: 00007f81516eff60 R11: 0000000000000246 R12: 0000000000000003
[   31.006967][  T368] R13: 00000000691ccdad R14: 0000000000499600 R15: 0000000000000000
| [   31.026760][  T368] #PF: error_code(0x0002) - not-present page
| [   31.027002][  T368] PGD cc75067 P4D cc75067 PUD 9894067 PMD 0
| [   31.027266][  T368] Oops: Oops: 0002 [#1] SMP KASAN
| [   31.027842][  T368] Tainted: [B]=BAD_PAGE
[   31.028000][  T368] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.028249][  T368] 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)
[   31.028501][  T368] 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
[   31.029189][  T368] RSP: 0018:ffffc90000966f40 EFLAGS: 00010046
[   31.029434][  T368] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8324090a
[   31.029704][  T368] RDX: fffffbfff0e8f2cd RSI: 0000000000000008 RDI: ffffffff87479660
[   31.030003][  T368] RBP: ffffc90000966fa8 R08: 0000000000000001 R09: fffffbfff0e8f2cc
[   31.030311][  T368] R10: ffffffff87479667 R11: ffffc90000966a00 R12: 0000000000000000
[   31.030587][  T368] R13: 0000000000000282 R14: ffff88800971c000 R15: dffffc0000000000
[   31.030877][  T368] FS:  00007f8151625800(0000) GS:ffff8880a92f2000(0000) knlGS:0000000000000000
[   31.031229][  T368] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.031475][  T368] CR2: 0000000000000000 CR3: 0000000009722006 CR4: 0000000000772ef0
[   31.031750][  T368] PKRU: 55555554
[   31.031896][  T368] Call Trace:
[   31.032051][  T368]  <TASK>
[   31.032151][  T368]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   31.032361][  T368]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   31.032547][  T368]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   31.032735][  T368]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   31.032935][  T368]  __cancel_work_sync (kernel/workqueue.c:4383)
[   31.033132][  T368]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   31.033330][  T368]  ? netdev_notify_peers (net/core/dev.c:1891)
[   31.033514][  T368]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   31.033687][  T368]  __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)
[   31.033889][  T368]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   31.034096][  T368]  ? netif_set_allmulti (net/core/dev.c:9890)
[   31.034287][  T368]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   31.034478][  T368]  netif_change_flags (net/core/dev.c:9989)
[   31.034652][  T368]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   31.034846][  T368]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   31.035051][  T368]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.035245][  T368]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   31.035439][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.035613][  T368]  ? __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)
[   31.035802][  T368]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   31.035994][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   31.036192][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   31.036384][  T368]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   31.036566][  T368]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   31.036773][  T368]  ? __create_object (mm/kmemleak.c:786)
[   31.036984][  T368]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   31.037180][  T368]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   31.037371][  T368]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   31.037553][  T368]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   31.037737][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   31.037937][  T368]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   31.038136][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   31.038329][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.038521][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.038692][  T368]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   31.038886][  T368]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   31.039094][  T368]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   31.039293][  T368]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   31.039482][  T368]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   31.039651][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.039842][  T368]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   31.040052][  T368]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   31.040243][  T368]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   31.040424][  T368]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   31.040606][  T368]  ? 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)
[   31.040788][  T368]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   31.040986][  T368]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   31.041182][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.041379][  T368]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   31.041560][  T368]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   31.041741][  T368]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   31.041934][  T368]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   31.042138][  T368]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   31.042336][  T368]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   31.042556][  T368]  ? __copy_msghdr (net/socket.c:2556)
[   31.042740][  T368]  ___sys_sendmsg (net/socket.c:2686)
[   31.042940][  T368]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   31.043138][  T368]  ? __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)
[   31.043382][  T368]  ? copy_msghdr_from_user (net/socket.c:2673)
[   31.043562][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.043743][  T368]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   31.043937][  T368]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   31.044131][  T368]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   31.044333][  T368]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   31.044517][  T368]  __sys_sendmsg (net/socket.c:2716)
[   31.044688][  T368]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   31.044925][  T368]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   31.045258][  T368]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   31.045450][  T368]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   31.045630][  T368]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   31.045860][  T368] RIP: 0033:0x7f81517f31d7
[   31.046223][  T368] 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)
[   31.047028][  T368] RSP: 002b:00007ffc398781e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.047319][  T368] RAX: ffffffffffffffda RBX: 00007ffc39878910 RCX: 00007f81517f31d7
[   31.047602][  T368] RDX: 0000000000000000 RSI: 00007ffc39878250 RDI: 0000000000000005
[   31.048004][  T368] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   31.048295][  T368] R10: 00007f81516eff60 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