======================================
| [   64.689063][  T699] ==================================================================
| [   64.689373][  T699] 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)
| [   64.689676][  T699] Write of size 8 at addr 0000000000000000 by task ip/699
| [   64.689919][  T699]
[   64.690028][  T699] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.690034][  T699] Call Trace:
[   64.690038][  T699]  <TASK>
[   64.690040][  T699]  dump_stack_lvl (lib/dump_stack.c:123)
[   64.690059][  T699]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   64.690062][  T699]  kasan_report (mm/kasan/report.c:597)
[   64.690078][  T699]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   64.690083][  T699]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   64.690088][  T699]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   64.690093][  T699]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   64.690096][  T699]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   64.690101][  T699]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   64.690104][  T699]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   64.690122][  T699]  __cancel_work_sync (kernel/workqueue.c:4383)
[   64.690127][  T699]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   64.690137][  T699]  ? netdev_notify_peers (net/core/dev.c:1891)
[   64.690141][  T699]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   64.690147][  T699]  __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)
[   64.690152][  T699]  ? netif_set_allmulti (net/core/dev.c:9890)
[   64.690155][  T699]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   64.690166][  T699]  netif_change_flags (net/core/dev.c:9989)
[   64.690168][  T699]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[   64.690173][  T699]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   64.690181][  T699]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   64.690187][  T699]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.690192][  T699]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   64.690198][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.690203][  T699]  ? __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)
[   64.690208][  T699]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   64.690212][  T699]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   64.690217][  T699]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   64.690220][  T699]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   64.690224][  T699]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   64.690230][  T699]  ? __create_object (mm/kmemleak.c:786)
[   64.690236][  T699]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   64.690238][  T699]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   64.690242][  T699]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   64.690246][  T699]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   64.690256][  T699]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   64.690262][  T699]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   64.690268][  T699]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   64.690271][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.690276][  T699]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   64.690280][  T699]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   64.690283][  T699]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   64.690286][  T699]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   64.690290][  T699]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   64.690294][  T699]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   64.690297][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.690303][  T699]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   64.690312][  T699]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   64.690316][  T699]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   64.690322][  T699]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   64.690325][  T699]  ? 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)
[   64.690328][  T699]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   64.690332][  T699]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   64.690336][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.690340][  T699]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   64.690345][  T699]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   64.690348][  T699]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   64.690358][  T699]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   64.690361][  T699]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   64.690367][  T699]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   64.690369][  T699]  ? __copy_msghdr (net/socket.c:2556)
[   64.690378][  T699]  ___sys_sendmsg (net/socket.c:2686)
[   64.690380][  T699]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   64.690384][  T699]  ? __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)
[   64.690389][  T699]  ? copy_msghdr_from_user (net/socket.c:2673)
[   64.690393][  T699]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   64.690398][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.690403][  T699]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   64.690407][  T699]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   64.690418][  T699]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   64.690424][  T699]  __sys_sendmsg (net/socket.c:2716)
[   64.690427][  T699]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   64.690430][  T699]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   64.690437][  T699]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   64.690441][  T699]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   64.690450][  T699]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   64.690454][  T699] RIP: 0033:0x7f64883271d7
[   64.690465][  T699] 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)
[   64.690468][  T699] RSP: 002b:00007fff6efa2998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   64.690476][  T699] RAX: ffffffffffffffda RBX: 00007fff6efa30d0 RCX: 00007f64883271d7
[   64.690478][  T699] RDX: 0000000000000000 RSI: 00007fff6efa2a00 RDI: 0000000000000005
[   64.690480][  T699] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   64.690482][  T699] R10: 00007f6488223510 R11: 0000000000000246 R12: 0000000000000003
[   64.690484][  T699] R13: 00000000691cb8c1 R14: 0000000000499600 R15: 0000000000000000
| [   64.711526][  T699] #PF: error_code(0x0002) - not-present page
| [   64.711759][  T699] PGD 108fa067 P4D 108fa067 PUD 2553067 PMD 0
| [   64.711986][  T699] Oops: Oops: 0002 [#1] SMP KASAN
| [   64.712509][  T699] Tainted: [B]=BAD_PAGE
[   64.712643][  T699] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.712870][  T699] 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)
[   64.713105][  T699] 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
[   64.713720][  T699] RSP: 0018:ffffc900019a6f30 EFLAGS: 00010046
[   64.713950][  T699] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa4049b8a
[   64.714215][  T699] RDX: fffffbfff51acacd RSI: 0000000000000008 RDI: ffffffffa8d65660
[   64.714470][  T699] RBP: ffffc900019a6f98 R08: 0000000000000001 R09: fffffbfff51acacc
[   64.714731][  T699] R10: ffffffffa8d65667 R11: ffffc900019a6a00 R12: 0000000000000000
[   64.715002][  T699] R13: 0000000000000286 R14: ffff88800a9e4000 R15: dffffc0000000000
[   64.715271][  T699] FS:  00007f6488159800(0000) GS:ffff8880c4307000(0000) knlGS:0000000000000000
[   64.715569][  T699] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   64.715795][  T699] CR2: 0000000000000000 CR3: 000000000a4f3004 CR4: 0000000000772ef0
[   64.716054][  T699] PKRU: 55555554
[   64.716185][  T699] Call Trace:
[   64.716315][  T699]  <TASK>
[   64.716406][  T699]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   64.716586][  T699]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   64.716767][  T699]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   64.716937][  T699]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   64.717113][  T699]  __cancel_work_sync (kernel/workqueue.c:4383)
[   64.717282][  T699]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   64.717456][  T699]  ? netdev_notify_peers (net/core/dev.c:1891)
[   64.717628][  T699]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   64.717813][  T699]  __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)
[   64.717985][  T699]  ? netif_set_allmulti (net/core/dev.c:9890)
[   64.718157][  T699]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   64.718331][  T699]  netif_change_flags (net/core/dev.c:9989)
[   64.718500][  T699]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[   64.718670][  T699]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   64.718850][  T699]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   64.719027][  T699]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.719204][  T699]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   64.719376][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.719549][  T699]  ? __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)
[   64.719729][  T699]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   64.719902][  T699]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   64.720076][  T699]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   64.720253][  T699]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   64.720427][  T699]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   64.720599][  T699]  ? __create_object (mm/kmemleak.c:786)
[   64.720781][  T699]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   64.720951][  T699]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   64.721124][  T699]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   64.721293][  T699]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   64.721471][  T699]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   64.721651][  T699]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   64.721835][  T699]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   64.722041][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.722215][  T699]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   64.722385][  T699]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   64.722559][  T699]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   64.722734][  T699]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   64.722911][  T699]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   64.723094][  T699]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   64.723267][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.723550][  T699]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   64.723729][  T699]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   64.723903][  T699]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   64.724079][  T699]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   64.724350][  T699]  ? 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)
[   64.724530][  T699]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   64.724701][  T699]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   64.724883][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.725173][  T699]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   64.725348][  T699]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   64.725519][  T699]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   64.725692][  T699]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   64.725973][  T699]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   64.726152][  T699]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   64.726366][  T699]  ? __copy_msghdr (net/socket.c:2556)
[   64.726544][  T699]  ___sys_sendmsg (net/socket.c:2686)
[   64.726828][  T699]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   64.727007][  T699]  ? __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)
[   64.727220][  T699]  ? copy_msghdr_from_user (net/socket.c:2673)
[   64.727392][  T699]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   64.727675][  T699]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   64.727854][  T699]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   64.728037][  T699]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   64.728212][  T699]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   64.728489][  T699]  __sys_sendmsg (net/socket.c:2716)
[   64.728658][  T699]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   64.728876][  T699]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   64.729053][  T699]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   64.729338][  T699]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   64.729512][  T699]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   64.729732][  T699] RIP: 0033:0x7f64883271d7
[   64.730027][  T699] 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)
[   64.730639][  T699] RSP: 002b:00007fff6efa2998 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   64.730914][  T699] RAX: ffffffffffffffda RBX: 00007fff6efa30d0 RCX: 00007f64883271d7
[   64.731174][  T699] RDX: 0000000000000000 RSI: 00007fff6efa2a00 RDI: 0000000000000005
[   64.731541][  T699] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   64.731846][  T699] R10: 00007f6488223510 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