======================================
| [   23.606822][  T335] ==================================================================
| [   23.607187][  T335] 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)
| [   23.607491][  T335] Write of size 8 at addr 0000000000000000 by task ip/335
| [   23.607752][  T335]
[   23.607867][  T335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.607869][  T335] Call Trace:
[   23.607871][  T335]  <TASK>
[   23.607873][  T335]  dump_stack_lvl (lib/dump_stack.c:123)
[   23.607893][  T335]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   23.607897][  T335]  kasan_report (mm/kasan/report.c:597)
[   23.607903][  T335]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   23.607909][  T335]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   23.607913][  T335]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   23.607918][  T335]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   23.607921][  T335]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   23.607925][  T335]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   23.607929][  T335]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.607944][  T335]  __cancel_work_sync (kernel/workqueue.c:4383)
[   23.607948][  T335]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   23.607954][  T335]  ? netdev_notify_peers (net/core/dev.c:1891)
[   23.607958][  T335]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   23.607963][  T335]  __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)
[   23.607967][  T335]  ? netif_set_allmulti (net/core/dev.c:9890)
[   23.607973][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.607981][  T335]  netif_change_flags (net/core/dev.c:9989)
[   23.607988][  T335]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   23.607993][  T335]  cycle_netdev (drivers/net/vrf.c:1052)
[   23.607998][  T335]  vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102)
[   23.608001][  T335]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   23.608005][  T335]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[   23.608009][  T335]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   23.608015][  T335]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   23.608021][  T335]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.608025][  T335]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   23.608029][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.608033][  T335]  ? __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)
[   23.608039][  T335]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   23.608042][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.608046][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.608050][  T335]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   23.608053][  T335]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   23.608061][  T335]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.608064][  T335]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   23.608067][  T335]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   23.608072][  T335]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   23.608077][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   23.608083][  T335]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   23.608089][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.608092][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.608097][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.608102][  T335]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   23.608108][  T335]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.608113][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.608118][  T335]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   23.608123][  T335]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.608126][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.608133][  T335]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   23.608137][  T335]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.608141][  T335]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   23.608148][  T335]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   23.608150][  T335]  ? 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)
[   23.608154][  T335]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   23.608158][  T335]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   23.608161][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.608166][  T335]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   23.608170][  T335]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.608174][  T335]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   23.608181][  T335]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.608185][  T335]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   23.608189][  T335]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   23.608191][  T335]  ? __copy_msghdr (net/socket.c:2556)
[   23.608199][  T335]  ___sys_sendmsg (net/socket.c:2686)
[   23.608202][  T335]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   23.608205][  T335]  ? __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)
[   23.608211][  T335]  ? copy_msghdr_from_user (net/socket.c:2673)
[   23.608216][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.608220][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.608225][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.608229][  T335]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   23.608237][  T335]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.608242][  T335]  __sys_sendmsg (net/socket.c:2716)
[   23.608245][  T335]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   23.608247][  T335]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   23.608255][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.608259][  T335]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.608266][  T335]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   23.608270][  T335] RIP: 0033:0x7f81f43c31d7
[   23.608275][  T335] 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)
[   23.608277][  T335] RSP: 002b:00007ffe06526708 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.608283][  T335] RAX: ffffffffffffffda RBX: 00007ffe06526e40 RCX: 00007f81f43c31d7
[   23.608285][  T335] RDX: 0000000000000000 RSI: 00007ffe06526770 RDI: 0000000000000005
[   23.608287][  T335] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.608289][  T335] R10: 000000001706e910 R11: 0000000000000246 R12: 0000000000000004
[   23.608291][  T335] R13: 00000000691cc820 R14: 0000000000499600 R15: 0000000000000000
| [   23.630689][  T335] #PF: error_code(0x0002) - not-present page
| [   23.631068][  T335] PGD 1103d067 P4D 1103d067 PUD 1102d067 PMD 0
| [   23.631337][  T335] Oops: Oops: 0002 [#1] SMP KASAN
| [   23.632100][  T335] Tainted: [B]=BAD_PAGE
[   23.632239][  T335] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.632464][  T335] 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)
[   23.632748][  T335] 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 1f 93 82 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 1f 93 82 00       	call   0x829349
  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
[   23.633551][  T335] RSP: 0018:ffffc90000fa6e60 EFLAGS: 00010046
[   23.633963][  T335] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffad649b8a
[   23.634250][  T335] RDX: fffffbfff646cacd RSI: 0000000000000008 RDI: ffffffffb2365660
[   23.634537][  T335] RBP: ffffc90000fa6ec8 R08: 0000000000000001 R09: fffffbfff646cacc
[   23.634992][  T335] R10: ffffffffb2365667 R11: ffffc90000fa6940 R12: 0000000000000000
[   23.635263][  T335] R13: 0000000000000286 R14: ffff88800ab29000 R15: dffffc0000000000
[   23.635684][  T335] FS:  00007f81f41f5800(0000) GS:ffff8880bad07000(0000) knlGS:0000000000000000
[   23.636046][  T335] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.636274][  T335] CR2: 0000000000000000 CR3: 000000001103c003 CR4: 0000000000772ef0
[   23.636691][  T335] PKRU: 55555554
[   23.636847][  T335] Call Trace:
[   23.637017][  T335]  <TASK>
[   23.637112][  T335]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   23.637298][  T335]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   23.637489][  T335]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   23.637700][  T335]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   23.637921][  T335]  __cancel_work_sync (kernel/workqueue.c:4383)
[   23.638113][  T335]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   23.638418][  T335]  ? netdev_notify_peers (net/core/dev.c:1891)
[   23.638624][  T335]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   23.638847][  T335]  __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)
[   23.639045][  T335]  ? netif_set_allmulti (net/core/dev.c:9890)
[   23.639339][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.639528][  T335]  netif_change_flags (net/core/dev.c:9989)
[   23.639743][  T335]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   23.639944][  T335]  cycle_netdev (drivers/net/vrf.c:1052)
[   23.640201][  T335]  vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102)
[   23.640380][  T335]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   23.640575][  T335]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[   23.640802][  T335]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   23.641123][  T335]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   23.641315][  T335]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.641503][  T335]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   23.641718][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.642054][  T335]  ? __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)
[   23.642238][  T335]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   23.642420][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.642625][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.642962][  T335]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   23.643153][  T335]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   23.643334][  T335]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.643520][  T335]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   23.643867][  T335]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   23.644069][  T335]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   23.644252][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   23.644432][  T335]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   23.644786][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.644990][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.645176][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.645354][  T335]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   23.645687][  T335]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.645895][  T335]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.646100][  T335]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   23.646280][  T335]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.646461][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.646682][  T335]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   23.646893][  T335]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.647088][  T335]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   23.647386][  T335]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   23.647577][  T335]  ? 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)
[   23.647798][  T335]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   23.647998][  T335]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   23.648291][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.648473][  T335]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   23.648687][  T335]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.648896][  T335]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   23.649208][  T335]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.649386][  T335]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   23.649579][  T335]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   23.649843][  T335]  ? __copy_msghdr (net/socket.c:2556)
[   23.650165][  T335]  ___sys_sendmsg (net/socket.c:2686)
[   23.650350][  T335]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   23.650537][  T335]  ? __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)
[   23.650823][  T335]  ? copy_msghdr_from_user (net/socket.c:2673)
[   23.651138][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.651328][  T335]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.651519][  T335]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.651741][  T335]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   23.652070][  T335]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.652251][  T335]  __sys_sendmsg (net/socket.c:2716)
[   23.652427][  T335]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   23.652824][  T335]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   23.653033][  T335]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.653212][  T335]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.653392][  T335]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   23.653782][  T335] RIP: 0033:0x7f81f43c31d7
[   23.653995][  T335] 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)
[   23.654828][  T335] RSP: 002b:00007ffe06526708 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.655125][  T335] RAX: ffffffffffffffda RBX: 00007ffe06526e40 RCX: 00007f81f43c31d7
[   23.655408][  T335] RDX: 0000000000000000 RSI: 00007ffe06526770 RDI: 0000000000000005
[   23.655854][  T335] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.656143][  T335] R10: 000000001706e910 R11: 0000000000000246 R12: 0000000000000004


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