======================================
| [   20.973671][  T276] ==================================================================
| [   20.973992][  T276] 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)
| [   20.974296][  T276] Write of size 8 at addr 0000000000000000 by task ip/276
| [   20.974523][  T276]
[   20.974678][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.974681][  T276] Call Trace:
[   20.974686][  T276]  <TASK>
[   20.974688][  T276]  dump_stack_lvl (lib/dump_stack.c:123)
[   20.974701][  T276]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   20.974704][  T276]  kasan_report (mm/kasan/report.c:597)
[   20.974715][  T276]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   20.974720][  T276]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   20.974723][  T276]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   20.974727][  T276]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   20.974730][  T276]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   20.974734][  T276]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   20.974738][  T276]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.974753][  T276]  __cancel_work_sync (kernel/workqueue.c:4383)
[   20.974756][  T276]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   20.974764][  T276]  ? netdev_notify_peers (net/core/dev.c:1891)
[   20.974768][  T276]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   20.974773][  T276]  __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)
[   20.974777][  T276]  ? netif_set_allmulti (net/core/dev.c:9890)
[   20.974780][  T276]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   20.974793][  T276]  netif_change_flags (net/core/dev.c:9989)
[   20.974795][  T276]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[   20.974801][  T276]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   20.974808][  T276]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   20.974814][  T276]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.974820][  T276]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   20.974827][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.974832][  T276]  ? __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)
[   20.974837][  T276]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   20.974840][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.974844][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.974846][  T276]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   20.974850][  T276]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   20.974855][  T276]  ? __create_object (mm/kmemleak.c:786)
[   20.974858][  T276]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.974861][  T276]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   20.974865][  T276]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   20.974868][  T276]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   20.974876][  T276]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   20.974881][  T276]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   20.974886][  T276]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.974889][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.974895][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.974899][  T276]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   20.974902][  T276]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.974906][  T276]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.974909][  T276]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   20.974913][  T276]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.974916][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.974923][  T276]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   20.974928][  T276]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.974931][  T276]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   20.974938][  T276]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   20.974942][  T276]  ? 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)
[   20.974947][  T276]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   20.974951][  T276]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   20.974954][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.974959][  T276]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   20.974963][  T276]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.974967][  T276]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   20.974974][  T276]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.974977][  T276]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   20.974984][  T276]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   20.974988][  T276]  ? __copy_msghdr (net/socket.c:2556)
[   20.974994][  T276]  ___sys_sendmsg (net/socket.c:2686)
[   20.974996][  T276]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   20.974999][  T276]  ? __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)
[   20.975003][  T276]  ? copy_msghdr_from_user (net/socket.c:2673)
[   20.975008][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.975012][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.975018][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.975021][  T276]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   20.975031][  T276]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.975037][  T276]  __sys_sendmsg (net/socket.c:2716)
[   20.975039][  T276]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   20.975043][  T276]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   20.975049][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.975053][  T276]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.975057][  T276]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   20.975062][  T276] RIP: 0033:0x7fc7c3b171d7
[   20.975066][  T276] 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)
[   20.975069][  T276] RSP: 002b:00007fffacbb7dd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.975076][  T276] RAX: ffffffffffffffda RBX: 00007fffacbb8500 RCX: 00007fc7c3b171d7
[   20.975078][  T276] RDX: 0000000000000000 RSI: 00007fffacbb7e40 RDI: 0000000000000005
[   20.975079][  T276] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   20.975084][  T276] R10: 00007fc7c3a13f60 R11: 0000000000000246 R12: 0000000000000002
[   20.975086][  T276] R13: 00000000691cbe42 R14: 0000000000499600 R15: 0000000000000000
| [   20.993336][  T276] #PF: error_code(0x0002) - not-present page
| [   20.993560][  T276] PGD 1db5067 P4D 1db5067 PUD 538d067 PMD 0
| [   20.993815][  T276] Oops: Oops: 0002 [#1] SMP KASAN
| [   20.994360][  T276] Tainted: [B]=BAD_PAGE
[   20.994494][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.994740][  T276] 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)
[   20.994989][  T276] 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 af 80 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 af 80 81 00       	call   0x8180d9
  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
[   20.995682][  T276] RSP: 0018:ffffc90000ca6f30 EFLAGS: 00010046
[   20.995921][  T276] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffba44390a
[   20.996190][  T276] RDX: fffffbfff7d1d4cd RSI: 0000000000000008 RDI: ffffffffbe8ea660
[   20.996461][  T276] RBP: ffffc90000ca6f98 R08: 0000000000000001 R09: fffffbfff7d1d4cc
[   20.996748][  T276] R10: ffffffffbe8ea667 R11: ffffc90000ca6a00 R12: 0000000000000000
[   20.997018][  T276] R13: 0000000000000286 R14: ffff888009141000 R15: dffffc0000000000
[   20.997302][  T276] FS:  00007fc7c3949800(0000) GS:ffff888077a81000(0000) knlGS:0000000000000000
[   20.997629][  T276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.997862][  T276] CR2: 0000000000000000 CR3: 000000000bf32001 CR4: 0000000000772ef0
[   20.998127][  T276] PKRU: 55555554
[   20.998294][  T276] Call Trace:
[   20.998441][  T276]  <TASK>
[   20.998537][  T276]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   20.998739][  T276]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   20.998919][  T276]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   20.999098][  T276]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   20.999276][  T276]  __cancel_work_sync (kernel/workqueue.c:4383)
[   20.999454][  T276]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   20.999644][  T276]  ? netdev_notify_peers (net/core/dev.c:1891)
[   20.999821][  T276]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   20.999998][  T276]  __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)
[   21.000177][  T276]  ? netif_set_allmulti (net/core/dev.c:9890)
[   21.000357][  T276]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   21.000538][  T276]  netif_change_flags (net/core/dev.c:9989)
[   21.000723][  T276]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[   21.000902][  T276]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   21.001083][  T276]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   21.001261][  T276]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.001445][  T276]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   21.001636][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.001815][  T276]  ? __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)
[   21.001990][  T276]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   21.002166][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.002342][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.002517][  T276]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   21.002708][  T276]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   21.002890][  T276]  ? __create_object (mm/kmemleak.c:786)
[   21.003067][  T276]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.003254][  T276]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   21.003431][  T276]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   21.003618][  T276]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   21.003796][  T276]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   21.003974][  T276]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   21.004151][  T276]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   21.004341][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.004522][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.004720][  T276]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   21.004896][  T276]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.005076][  T276]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   21.005252][  T276]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   21.005432][  T276]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   21.005614][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.005797][  T276]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   21.005974][  T276]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   21.006152][  T276]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   21.006328][  T276]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   21.006507][  T276]  ? 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)
[   21.006701][  T276]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   21.006944][  T276]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   21.007141][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.007320][  T276]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   21.007496][  T276]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   21.007684][  T276]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   21.007863][  T276]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   21.008044][  T276]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   21.008221][  T276]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   21.008442][  T276]  ? __copy_msghdr (net/socket.c:2556)
[   21.008635][  T276]  ___sys_sendmsg (net/socket.c:2686)
[   21.008810][  T276]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   21.008987][  T276]  ? __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)
[   21.009209][  T276]  ? copy_msghdr_from_user (net/socket.c:2673)
[   21.009387][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.009574][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.009754][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.009930][  T276]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   21.010112][  T276]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.010289][  T276]  __sys_sendmsg (net/socket.c:2716)
[   21.010466][  T276]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   21.010705][  T276]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   21.010884][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.011061][  T276]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.011238][  T276]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   21.011460][  T276] RIP: 0033:0x7fc7c3b171d7
[   21.011652][  T276] 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)
[   21.012277][  T276] RSP: 002b:00007fffacbb7dd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.012550][  T276] RAX: ffffffffffffffda RBX: 00007fffacbb8500 RCX: 00007fc7c3b171d7
[   21.012845][  T276] RDX: 0000000000000000 RSI: 00007fffacbb7e40 RDI: 0000000000000005
[   21.013108][  T276] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   21.013388][  T276] R10: 00007fc7c3a13f60 R11: 0000000000000246 R12: 0000000000000002


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