======================================
| [  448.261722][ T1910] ==================================================================
| [  448.262238][ T1910] 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)
| [  448.262738][ T1910] Write of size 8 at addr 0000000000000000 by task ip/1910
| [  448.263202][ T1910]
[  448.263377][ T1910] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  448.263382][ T1910] Call Trace:
[  448.263385][ T1910]  <TASK>
[  448.263388][ T1910]  dump_stack_lvl (lib/dump_stack.c:123)
[  448.263401][ T1910]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  448.263406][ T1910]  kasan_report (mm/kasan/report.c:597)
[  448.263419][ T1910]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  448.263428][ T1910]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[  448.263435][ T1910]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  448.263444][ T1910]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[  448.263449][ T1910]  ? enable_delayed_work (kernel/workqueue.c:4359)
[  448.263456][ T1910]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[  448.263462][ T1910]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  448.263472][ T1910]  __cancel_work_sync (kernel/workqueue.c:4383)
[  448.263478][ T1910]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[  448.263493][ T1910]  ? netdev_notify_peers (net/core/dev.c:1891)
[  448.263501][ T1910]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[  448.263509][ T1910]  __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)
[  448.263514][ T1910]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[  448.263522][ T1910]  ? netif_set_allmulti (net/core/dev.c:9890)
[  448.263526][ T1910]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  448.263536][ T1910]  netif_change_flags (net/core/dev.c:9989)
[  448.263542][ T1910]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[  448.263550][ T1910]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[  448.263562][ T1910]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  448.263569][ T1910]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[  448.263577][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.263586][ T1910]  ? __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)
[  448.263592][ T1910]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[  448.263598][ T1910]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  448.263605][ T1910]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  448.263610][ T1910]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[  448.263616][ T1910]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[  448.263627][ T1910]  ? __create_object (mm/kmemleak.c:786)
[  448.263631][ T1910]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  448.263635][ T1910]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  448.263640][ T1910]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[  448.263646][ T1910]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[  448.263652][ T1910]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[  448.263660][ T1910]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  448.263669][ T1910]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  448.263674][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.263684][ T1910]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  448.263691][ T1910]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  448.263694][ T1910]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  448.263702][ T1910]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  448.263708][ T1910]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  448.263714][ T1910]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  448.263719][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.263733][ T1910]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  448.263739][ T1910]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  448.263745][ T1910]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  448.263758][ T1910]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  448.263764][ T1910]  ? 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)
[  448.263771][ T1910]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  448.263779][ T1910]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  448.263786][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.263796][ T1910]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  448.263804][ T1910]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  448.263811][ T1910]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  448.263821][ T1910]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  448.263827][ T1910]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  448.263835][ T1910]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  448.263840][ T1910]  ? __copy_msghdr (net/socket.c:2556)
[  448.263854][ T1910]  ___sys_sendmsg (net/socket.c:2686)
[  448.263859][ T1910]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[  448.263864][ T1910]  ? __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)
[  448.263872][ T1910]  ? copy_msghdr_from_user (net/socket.c:2673)
[  448.263881][ T1910]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  448.263888][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.263897][ T1910]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  448.263903][ T1910]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[  448.263910][ T1910]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  448.263921][ T1910]  __sys_sendmsg (net/socket.c:2716)
[  448.263927][ T1910]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[  448.263933][ T1910]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  448.263947][ T1910]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  448.263954][ T1910]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  448.263963][ T1910]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  448.263968][ T1910] RIP: 0033:0x7f1f97f101d7
[  448.263974][ T1910] 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)
[  448.263983][ T1910] RSP: 002b:00007ffe8c8bc638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  448.263988][ T1910] RAX: ffffffffffffffda RBX: 00007ffe8c8bcd60 RCX: 00007f1f97f101d7
[  448.263992][ T1910] RDX: 0000000000000000 RSI: 00007ffe8c8bc6a0 RDI: 0000000000000005
[  448.263995][ T1910] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  448.263998][ T1910] R10: 00007f1f97e0cf60 R11: 0000000000000246 R12: 0000000000000003
[  448.264002][ T1910] R13: 00000000691cbc74 R14: 0000000000499600 R15: 0000000000000000
| [  448.291632][ T1910] #PF: error_code(0x0002) - not-present page
| [  448.291986][ T1910] PGD c3ad067 P4D c3ad067 PUD 8da7067 PMD 0
| [  448.292357][ T1910] Oops: Oops: 0002 [#1] SMP KASAN
| [  448.293232][ T1910] Tainted: [B]=BAD_PAGE
[  448.293445][ T1910] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  448.293807][ T1910] 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)
[  448.294153][ T1910] 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
[  448.295160][ T1910] RSP: 0018:ffffc900029c6f40 EFLAGS: 00010046
[  448.295530][ T1910] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9524090a
[  448.295958][ T1910] RDX: fffffbfff328f2cd RSI: 0000000000000008 RDI: ffffffff99479660
[  448.296368][ T1910] RBP: ffffc900029c6fa8 R08: 0000000000000001 R09: fffffbfff328f2cc
[  448.296790][ T1910] R10: ffffffff99479667 R11: ffffc900029c6a00 R12: 0000000000000000
[  448.297219][ T1910] R13: 0000000000000282 R14: ffff888008159000 R15: dffffc0000000000
[  448.297663][ T1910] FS:  00007f1f97d42800(0000) GS:ffff88809cef2000(0000) knlGS:0000000000000000
[  448.298161][ T1910] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  448.298542][ T1910] CR2: 0000000000000000 CR3: 000000000f355003 CR4: 0000000000772ef0
[  448.298963][ T1910] PKRU: 55555554
[  448.299183][ T1910] Call Trace:
[  448.299406][ T1910]  <TASK>
[  448.299567][ T1910]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[  448.299861][ T1910]  ? enable_delayed_work (kernel/workqueue.c:4359)
[  448.300147][ T1910]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[  448.300443][ T1910]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  448.300726][ T1910]  __cancel_work_sync (kernel/workqueue.c:4383)
[  448.301005][ T1910]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[  448.301300][ T1910]  ? netdev_notify_peers (net/core/dev.c:1891)
[  448.301601][ T1910]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[  448.301881][ T1910]  __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)
[  448.302170][ T1910]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[  448.302458][ T1910]  ? netif_set_allmulti (net/core/dev.c:9890)
[  448.302739][ T1910]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  448.303022][ T1910]  netif_change_flags (net/core/dev.c:9989)
[  448.303305][ T1910]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[  448.303616][ T1910]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[  448.303904][ T1910]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  448.304201][ T1910]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[  448.304498][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.304819][ T1910]  ? __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)
[  448.305097][ T1910]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[  448.305335][ T1910]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  448.305587][ T1910]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  448.305864][ T1910]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[  448.306152][ T1910]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[  448.306451][ T1910]  ? __create_object (mm/kmemleak.c:786)
[  448.306735][ T1910]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  448.307016][ T1910]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  448.307215][ T1910]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[  448.307450][ T1910]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[  448.307745][ T1910]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[  448.308012][ T1910]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  448.308304][ T1910]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  448.308589][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.308873][ T1910]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  448.309149][ T1910]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  448.309437][ T1910]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  448.309724][ T1910]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  448.310014][ T1910]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  448.310308][ T1910]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  448.310604][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.310889][ T1910]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  448.311177][ T1910]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  448.311463][ T1910]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  448.311745][ T1910]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  448.312010][ T1910]  ? 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)
[  448.312273][ T1910]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  448.312509][ T1910]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  448.312788][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.313076][ T1910]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  448.313376][ T1910]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  448.313549][ T1910]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  448.313774][ T1910]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  448.314057][ T1910]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  448.314348][ T1910]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  448.314693][ T1910]  ? __copy_msghdr (net/socket.c:2556)
[  448.314978][ T1910]  ___sys_sendmsg (net/socket.c:2686)
[  448.315273][ T1910]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[  448.315562][ T1910]  ? __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)
[  448.315857][ T1910]  ? copy_msghdr_from_user (net/socket.c:2673)
[  448.316144][ T1910]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  448.316443][ T1910]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  448.316724][ T1910]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  448.317175][ T1910]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[  448.317470][ T1910]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  448.317715][ T1910]  __sys_sendmsg (net/socket.c:2716)
[  448.317996][ T1910]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[  448.318486][ T1910]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  448.318761][ T1910]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  448.319044][ T1910]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  448.319340][ T1910]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  448.319817][ T1910] RIP: 0033:0x7f1f97f101d7
[  448.320110][ T1910] 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)
[  448.321084][ T1910] RSP: 002b:00007ffe8c8bc638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  448.321491][ T1910] RAX: ffffffffffffffda RBX: 00007ffe8c8bcd60 RCX: 00007f1f97f101d7
[  448.321826][ T1910] RDX: 0000000000000000 RSI: 00007ffe8c8bc6a0 RDI: 0000000000000005
[  448.322247][ T1910] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[  448.322686][ T1910] R10: 00007f1f97e0cf60 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