======================================
| [   46.327748][  T367] ==================================================================
| [   46.328065][  T367] 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)
| [   46.328380][  T367] Write of size 8 at addr 0000000000000000 by task ip/367
| [   46.328621][  T367]
[   46.328730][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.328732][  T367] Call Trace:
[   46.328737][  T367]  <TASK>
[   46.328739][  T367]  dump_stack_lvl (lib/dump_stack.c:123)
[   46.328750][  T367]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   46.328753][  T367]  kasan_report (mm/kasan/report.c:597)
[   46.328765][  T367]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   46.328771][  T367]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   46.328774][  T367]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   46.328779][  T367]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   46.328782][  T367]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   46.328786][  T367]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   46.328789][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   46.328797][  T367]  __cancel_work_sync (kernel/workqueue.c:4383)
[   46.328801][  T367]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   46.328810][  T367]  ? netdev_notify_peers (net/core/dev.c:1891)
[   46.328814][  T367]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   46.328824][  T367]  __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)
[   46.328828][  T367]  ? netif_set_allmulti (net/core/dev.c:9890)
[   46.328831][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.328841][  T367]  netif_change_flags (net/core/dev.c:9989)
[   46.328845][  T367]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   46.328849][  T367] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   46.328856][  T367] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   46.328861][  T367]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   46.328866][  T367]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   46.328871][  T367]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   46.328876][  T367]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   46.328883][  T367]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   46.328889][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.328894][  T367]  ? __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)
[   46.328898][  T367]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   46.328901][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   46.328908][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   46.328911][  T367]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   46.328915][  T367]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   46.328923][  T367]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   46.328928][  T367]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   46.328932][  T367]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   46.328937][  T367]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   46.328946][  T367]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   46.328952][  T367]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   46.328957][  T367]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   46.328960][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.328966][  T367]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   46.328970][  T367]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   46.328972][  T367]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   46.328977][  T367]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   46.328980][  T367]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   46.328983][  T367]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   46.328986][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.328993][  T367]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   46.328999][  T367]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   46.329002][  T367]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   46.329009][  T367]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   46.329012][  T367]  ? 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)
[   46.329016][  T367]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   46.329021][  T367]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   46.329024][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.329030][  T367]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   46.329035][  T367]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   46.329038][  T367]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   46.329047][  T367]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   46.329051][  T367]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   46.329056][  T367]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   46.329060][  T367]  ? __copy_msghdr (net/socket.c:2556)
[   46.329067][  T367]  ___sys_sendmsg (net/socket.c:2686)
[   46.329070][  T367]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   46.329073][  T367]  ? __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)
[   46.329078][  T367]  ? copy_msghdr_from_user (net/socket.c:2673)
[   46.329083][  T367]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   46.329088][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.329094][  T367]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   46.329097][  T367]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   46.329108][  T367]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   46.329115][  T367]  __sys_sendmsg (net/socket.c:2716)
[   46.329118][  T367]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   46.329122][  T367]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   46.329130][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   46.329134][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   46.329139][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   46.329144][  T367] RIP: 0033:0x7f753eee91d7
[   46.329148][  T367] 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)
[   46.329152][  T367] RSP: 002b:00007fff1289e4f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   46.329157][  T367] RAX: ffffffffffffffda RBX: 00007fff1289ec20 RCX: 00007f753eee91d7
[   46.329161][  T367] RDX: 0000000000000000 RSI: 00007fff1289e560 RDI: 0000000000000005
[   46.329163][  T367] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   46.329164][  T367] R10: 0000000007d4d910 R11: 0000000000000246 R12: 0000000000000004
[   46.329166][  T367] R13: 00000000691cb916 R14: 0000000000499600 R15: 0000000000000000
| [   46.348200][  T367] #PF: error_code(0x0002) - not-present page
| [   46.348426][  T367] PGD a74c067 P4D a74c067 PUD a6f8067 PMD 0
| [   46.348662][  T367] Oops: Oops: 0002 [#1] SMP KASAN
| [   46.349218][  T367] Tainted: [B]=BAD_PAGE
[   46.349360][  T367] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.349590][  T367] 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)
[   46.349831][  T367] 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
[   46.350485][  T367] RSP: 0018:ffffc90000866e70 EFLAGS: 00010046
[   46.350718][  T367] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9ec4090a
[   46.350999][  T367] RDX: fffffbfff45cf2cd RSI: 0000000000000008 RDI: ffffffffa2e79660
[   46.351272][  T367] RBP: ffffc90000866ed8 R08: 0000000000000001 R09: fffffbfff45cf2cc
[   46.351545][  T367] R10: ffffffffa2e79667 R11: ffffc90000866940 R12: 0000000000000000
[   46.351820][  T367] R13: 0000000000000282 R14: ffff888007331000 R15: dffffc0000000000
[   46.352094][  T367] FS:  00007f753ed1b800(0000) GS:ffff88808d972000(0000) knlGS:0000000000000000
[   46.352419][  T367] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.352648][  T367] CR2: 0000000000000000 CR3: 000000000c50d004 CR4: 0000000000772ef0
[   46.352923][  T367] PKRU: 55555554
[   46.353063][  T367] Call Trace:
[   46.353200][  T367]  <TASK>
[   46.353294][  T367]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   46.353481][  T367]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   46.353666][  T367]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   46.353848][  T367]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   46.354031][  T367]  __cancel_work_sync (kernel/workqueue.c:4383)
[   46.354211][  T367]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   46.354395][  T367]  ? netdev_notify_peers (net/core/dev.c:1891)
[   46.354578][  T367]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   46.354767][  T367]  __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)
[   46.354948][  T367]  ? netif_set_allmulti (net/core/dev.c:9890)
[   46.355130][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.355316][  T367]  netif_change_flags (net/core/dev.c:9989)
[   46.355498][  T367]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   46.355680][  T367] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   46.355868][  T367] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   46.356053][  T367]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   46.356242][  T367]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   46.356425][  T367]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   46.356610][  T367]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   46.356794][  T367]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   46.356978][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.357161][  T367]  ? __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)
[   46.357341][  T367]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   46.357527][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   46.357707][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   46.357888][  T367]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   46.358068][  T367]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   46.358251][  T367]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   46.358429][  T367]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   46.358610][  T367]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   46.358794][  T367]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   46.358981][  T367]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   46.359163][  T367]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   46.359345][  T367]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   46.359525][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.359708][  T367]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   46.359890][  T367]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   46.360071][  T367]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   46.360253][  T367]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   46.360475][  T367]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   46.360674][  T367]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   46.360855][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.361042][  T367]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   46.361225][  T367]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   46.361406][  T367]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   46.361591][  T367]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   46.361776][  T367]  ? 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)
[   46.361959][  T367]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   46.362143][  T367]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   46.362325][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.362509][  T367]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   46.362691][  T367]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   46.362995][  T367]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   46.363179][  T367]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   46.363365][  T367]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   46.363548][  T367]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   46.363890][  T367]  ? __copy_msghdr (net/socket.c:2556)
[   46.364073][  T367]  ___sys_sendmsg (net/socket.c:2686)
[   46.364253][  T367]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   46.364434][  T367]  ? __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)
[   46.364782][  T367]  ? copy_msghdr_from_user (net/socket.c:2673)
[   46.364968][  T367]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   46.365151][  T367]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   46.365336][  T367]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   46.365521][  T367]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   46.365707][  T367]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   46.365893][  T367]  __sys_sendmsg (net/socket.c:2716)
[   46.366077][  T367]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   46.366421][  T367]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   46.366610][  T367]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   46.366792][  T367]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   46.367097][  T367]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   46.367321][  T367] RIP: 0033:0x7f753eee91d7
[   46.367512][  T367] 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)
[   46.368288][  T367] RSP: 002b:00007fff1289e4f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   46.368565][  T367] RAX: ffffffffffffffda RBX: 00007fff1289ec20 RCX: 00007f753eee91d7
[   46.368956][  T367] RDX: 0000000000000000 RSI: 00007fff1289e560 RDI: 0000000000000005
[   46.369229][  T367] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   46.369505][  T367] R10: 0000000007d4d910 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