======================================
| [  321.599002][ T1678] ==================================================================
| [  321.599432][ T1678] 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)
| [  321.599745][ T1678] Write of size 8 at addr 0000000000000000 by task ip/1678
| [  321.600066][ T1678]
[  321.600175][ T1678] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  321.600180][ T1678] Call Trace:
[  321.600185][ T1678]  <TASK>
[  321.600187][ T1678]  dump_stack_lvl (lib/dump_stack.c:123)
[  321.600210][ T1678]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  321.600214][ T1678]  kasan_report (mm/kasan/report.c:597)
[  321.600225][ T1678]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  321.600230][ T1678]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[  321.600234][ T1678]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  321.600239][ T1678]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[  321.600242][ T1678]  ? enable_delayed_work (kernel/workqueue.c:4359)
[  321.600247][ T1678]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[  321.600250][ T1678]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  321.600259][ T1678]  __cancel_work_sync (kernel/workqueue.c:4383)
[  321.600263][ T1678]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[  321.600278][ T1678]  ? netdev_notify_peers (net/core/dev.c:1891)
[  321.600282][ T1678]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[  321.600290][ T1678]  __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)
[  321.600296][ T1678]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[  321.600304][ T1678]  ? netif_set_allmulti (net/core/dev.c:9890)
[  321.600306][ T1678]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  321.600315][ T1678]  netif_change_flags (net/core/dev.c:9989)
[  321.600321][ T1678]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[  321.600328][ T1678]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[  321.600334][ T1678]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  321.600345][ T1678]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[  321.600353][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.600361][ T1678]  ? __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)
[  321.600367][ T1678]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[  321.600373][ T1678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  321.600387][ T1678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  321.600392][ T1678]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[  321.600398][ T1678]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[  321.600425][ T1678]  ? __create_object (mm/kmemleak.c:786)
[  321.600433][ T1678]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  321.600438][ T1678]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  321.600444][ T1678]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[  321.600450][ T1678]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[  321.600463][ T1678]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[  321.600472][ T1678]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  321.600483][ T1678]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  321.600489][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.600499][ T1678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  321.600506][ T1678]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  321.600510][ T1678]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  321.600517][ T1678]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  321.600530][ T1678]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  321.600537][ T1678]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  321.600542][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.600554][ T1678]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  321.600567][ T1678]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  321.600573][ T1678]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  321.600586][ T1678]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  321.600590][ T1678]  ? 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)
[  321.600594][ T1678]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  321.600598][ T1678]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  321.600602][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.600608][ T1678]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  321.600613][ T1678]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  321.600617][ T1678]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  321.600626][ T1678]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  321.600630][ T1678]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  321.600641][ T1678]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  321.600644][ T1678]  ? __copy_msghdr (net/socket.c:2556)
[  321.600652][ T1678]  ___sys_sendmsg (net/socket.c:2686)
[  321.600655][ T1678]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[  321.600659][ T1678]  ? __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)
[  321.600667][ T1678]  ? copy_msghdr_from_user (net/socket.c:2673)
[  321.600672][ T1678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  321.600676][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.600682][ T1678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  321.600686][ T1678]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[  321.600695][ T1678]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  321.600701][ T1678]  __sys_sendmsg (net/socket.c:2716)
[  321.600705][ T1678]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[  321.600709][ T1678]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  321.600717][ T1678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  321.600720][ T1678]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  321.600727][ T1678]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  321.600732][ T1678] RIP: 0033:0x7f2e5abcf1d7
[  321.600744][ T1678] 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)
[  321.600748][ T1678] RSP: 002b:00007ffcc99042f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  321.600757][ T1678] RAX: ffffffffffffffda RBX: 00007ffcc9904a20 RCX: 00007f2e5abcf1d7
[  321.600759][ T1678] RDX: 0000000000000000 RSI: 00007ffcc9904360 RDI: 0000000000000005
[  321.600761][ T1678] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  321.600763][ T1678] R10: 00007f2e5aacbf60 R11: 0000000000000246 R12: 0000000000000003
[  321.600766][ T1678] R13: 00000000691cd1b6 R14: 0000000000499600 R15: 0000000000000000
| [  321.623277][ T1678] #PF: error_code(0x0002) - not-present page
| [  321.623487][ T1678] PGD 117d4067 P4D 117d4067 PUD 12604067 PMD 0
| [  321.623887][ T1678] Oops: Oops: 0002 [#1] SMP KASAN
| [  321.624411][ T1678] Tainted: [B]=BAD_PAGE
[  321.624587][ T1678] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  321.624890][ T1678] 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)
[  321.625124][ T1678] 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
[  321.625969][ T1678] RSP: 0018:ffffc90002806f40 EFLAGS: 00010046
[  321.626421][ T1678] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffae04090a
[  321.626768][ T1678] RDX: fffffbfff644f2cd RSI: 0000000000000008 RDI: ffffffffb2279660
[  321.627077][ T1678] RBP: ffffc90002806fa8 R08: 0000000000000001 R09: fffffbfff644f2cc
[  321.627444][ T1678] R10: ffffffffb2279667 R11: ffffc90002806a00 R12: 0000000000000000
[  321.627775][ T1678] R13: 0000000000000282 R14: ffff888011fb9000 R15: dffffc0000000000
[  321.628047][ T1678] FS:  00007f2e5aa01800(0000) GS:ffff8880840f2000(0000) knlGS:0000000000000000
[  321.628455][ T1678] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  321.628749][ T1678] CR2: 0000000000000000 CR3: 00000000149ec005 CR4: 0000000000772ef0
[  321.629122][ T1678] PKRU: 55555554
[  321.629253][ T1678] Call Trace:
[  321.629398][ T1678]  <TASK>
[  321.629546][ T1678]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[  321.629743][ T1678]  ? enable_delayed_work (kernel/workqueue.c:4359)
[  321.630073][ T1678]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[  321.630260][ T1678]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  321.630536][ T1678]  __cancel_work_sync (kernel/workqueue.c:4383)
[  321.630736][ T1678]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[  321.631145][ T1678]  ? netdev_notify_peers (net/core/dev.c:1891)
[  321.631404][ T1678]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[  321.631630][ T1678]  __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)
[  321.631847][ T1678]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[  321.632129][ T1678]  ? netif_set_allmulti (net/core/dev.c:9890)
[  321.632374][ T1678]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  321.632547][ T1678]  netif_change_flags (net/core/dev.c:9989)
[  321.632726][ T1678]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[  321.633009][ T1678]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[  321.633185][ T1678]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  321.633356][ T1678]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[  321.633572][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.634053][ T1678]  ? __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)
[  321.634242][ T1678]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[  321.634426][ T1678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  321.634662][ T1678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  321.634976][ T1678]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[  321.635158][ T1678]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[  321.635328][ T1678]  ? __create_object (mm/kmemleak.c:786)
[  321.635546][ T1678]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  321.635882][ T1678]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  321.636114][ T1678]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[  321.636283][ T1678]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[  321.636511][ T1678]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[  321.636801][ T1678]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  321.637029][ T1678]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  321.637211][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.637387][ T1678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  321.637671][ T1678]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  321.637838][ T1678]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  321.638010][ T1678]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  321.638244][ T1678]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  321.638472][ T1678]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  321.638665][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.638838][ T1678]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  321.639006][ T1678]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  321.639339][ T1678]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  321.639548][ T1678]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  321.639826][ T1678]  ? 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)
[  321.640084][ T1678]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  321.640358][ T1678]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  321.640539][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.640728][ T1678]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  321.640953][ T1678]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  321.641249][ T1678]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  321.641424][ T1678]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  321.641605][ T1678]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  321.641775][ T1678]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  321.642085][ T1678]  ? __copy_msghdr (net/socket.c:2556)
[  321.642316][ T1678]  ___sys_sendmsg (net/socket.c:2686)
[  321.642521][ T1678]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[  321.642742][ T1678]  ? __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)
[  321.643060][ T1678]  ? copy_msghdr_from_user (net/socket.c:2673)
[  321.643301][ T1678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  321.643517][ T1678]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  321.643786][ T1678]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  321.644131][ T1678]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[  321.644347][ T1678]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  321.644573][ T1678]  __sys_sendmsg (net/socket.c:2716)
[  321.644818][ T1678]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[  321.645216][ T1678]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  321.645399][ T1678]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  321.645580][ T1678]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  321.645808][ T1678]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  321.646156][ T1678] RIP: 0033:0x7f2e5abcf1d7
[  321.646333][ T1678] 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)
[  321.647143][ T1678] RSP: 002b:00007ffcc99042f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  321.647464][ T1678] RAX: ffffffffffffffda RBX: 00007ffcc9904a20 RCX: 00007f2e5abcf1d7
[  321.647878][ T1678] RDX: 0000000000000000 RSI: 00007ffcc9904360 RDI: 0000000000000005
[  321.648183][ T1678] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  321.648445][ T1678] R10: 00007f2e5aacbf60 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