======================================
| [   45.847179][  T622] ==================================================================
| [   45.847471][  T622] 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)
| [   45.847758][  T622] Write of size 8 at addr 0000000000000000 by task ip/622
| [   45.848021][  T622]
[   45.848140][  T622] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.848145][  T622] Call Trace:
[   45.848147][  T622]  <TASK>
[   45.848149][  T622]  dump_stack_lvl (lib/dump_stack.c:123)
[   45.848160][  T622]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   45.848164][  T622]  kasan_report (mm/kasan/report.c:597)
[   45.848172][  T622]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   45.848177][  T622]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   45.848181][  T622]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   45.848183][  T622]  ? __ipv6_dev_mc_dec (net/ipv6/mcast.c:1008)
[   45.848189][  T622]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   45.848193][  T622]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   45.848196][  T622]  ? br_multicast_leave_snoopers (net/bridge/br_multicast.c:4220) bridge
[   45.848232][  T622]  ? br_multicast_join_snoopers (net/bridge/br_multicast.c:4220) bridge
[   45.848265][  T622]  __cancel_work_sync (kernel/workqueue.c:4383)
[   45.848269][  T622]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   45.848278][  T622]  ? netdev_notify_peers (net/core/dev.c:1891)
[   45.848282][  T622]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   45.848289][  T622]  __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)
[   45.848292][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5343)
[   45.848298][  T622]  ? netif_set_allmulti (net/core/dev.c:9890)
[   45.848300][  T622]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   45.848306][  T622]  netif_change_flags (net/core/dev.c:9989)
[   45.848310][  T622]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   45.848315][  T622]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   45.848321][  T622]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   45.848327][  T622]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   45.848333][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.848337][  T622]  ? __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)
[   45.848341][  T622]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   45.848344][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   45.848348][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   45.848351][  T622]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   45.848355][  T622]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   45.848363][  T622]  ? __create_object (mm/kmemleak.c:786)
[   45.848367][  T622]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   45.848370][  T622]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   45.848373][  T622]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   45.848376][  T622]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   45.848383][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   45.848388][  T622]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   45.848393][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   45.848396][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.848401][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   45.848405][  T622]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   45.848407][  T622]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   45.848412][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   45.848414][  T622]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   45.848418][  T622]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   45.848421][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.848428][  T622]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   45.848434][  T622]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   45.848437][  T622]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   45.848444][  T622]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   45.848447][  T622]  ? 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)
[   45.848451][  T622]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   45.848455][  T622]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   45.848459][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.848464][  T622]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   45.848469][  T622]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   45.848472][  T622]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   45.848482][  T622]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   45.848485][  T622]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   45.848493][  T622]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   45.848496][  T622]  ? __copy_msghdr (net/socket.c:2556)
[   45.848504][  T622]  ___sys_sendmsg (net/socket.c:2686)
[   45.848507][  T622]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   45.848510][  T622]  ? __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)
[   45.848517][  T622]  ? copy_msghdr_from_user (net/socket.c:2673)
[   45.848523][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   45.848530][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.848539][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   45.848544][  T622]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   45.848553][  T622]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   45.848559][  T622]  __sys_sendmsg (net/socket.c:2716)
[   45.848562][  T622]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   45.848566][  T622]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   45.848574][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   45.848578][  T622]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   45.848586][  T622]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   45.848591][  T622] RIP: 0033:0x7f02de4581d7
[   45.848595][  T622] 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)
[   45.848598][  T622] RSP: 002b:00007ffef80ef5a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.848602][  T622] RAX: ffffffffffffffda RBX: 00007ffef80efcd0 RCX: 00007f02de4581d7
[   45.848604][  T622] RDX: 0000000000000000 RSI: 00007ffef80ef610 RDI: 0000000000000005
[   45.848606][  T622] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   45.848607][  T622] R10: 00007f02de354f60 R11: 0000000000000246 R12: 0000000000000003
[   45.848609][  T622] R13: 00000000691cc9a7 R14: 0000000000499600 R15: 0000000000000000
| [   45.867051][  T622] #PF: error_code(0x0002) - not-present page
| [   45.867295][  T622] PGD 8d02067 P4D 8d02067 PUD 9d5c067 PMD 0
| [   45.867631][  T622] Oops: Oops: 0002 [#1] SMP KASAN
| [   45.868177][  T622] Tainted: [B]=BAD_PAGE
[   45.868308][  T622] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.868645][  T622] 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)
[   45.868875][  T622] 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
[   45.869611][  T622] RSP: 0018:ffffc9000104ef40 EFLAGS: 00010046
[   45.869832][  T622] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa364090a
[   45.870212][  T622] RDX: fffffbfff4f0f2cd RSI: 0000000000000008 RDI: ffffffffa7879660
[   45.870469][  T622] RBP: ffffc9000104efa8 R08: 0000000000000001 R09: fffffbfff4f0f2cc
[   45.870732][  T622] R10: ffffffffa7879667 R11: ffffc9000104ea00 R12: 0000000000000000
[   45.871134][  T622] R13: 0000000000000282 R14: ffff88800f70a000 R15: dffffc0000000000
[   45.871392][  T622] FS:  00007f02de28a800(0000) GS:ffff888088df2000(0000) knlGS:0000000000000000
[   45.871801][  T622] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.872031][  T622] CR2: 0000000000000000 CR3: 0000000008639006 CR4: 0000000000772ef0
[   45.872286][  T622] PKRU: 55555554
[   45.872413][  T622] Call Trace:
[   45.872669][  T622]  <TASK>
[   45.872758][  T622]  ? __ipv6_dev_mc_dec (net/ipv6/mcast.c:1008)
[   45.872954][  T622]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   45.873125][  T622]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   45.873443][  T622]  ? br_multicast_leave_snoopers (net/bridge/br_multicast.c:4220) bridge
[   45.873693][  T622]  ? br_multicast_join_snoopers (net/bridge/br_multicast.c:4220) bridge
[   45.873949][  T622]  __cancel_work_sync (kernel/workqueue.c:4383)
[   45.874125][  T622]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   45.874399][  T622]  ? netdev_notify_peers (net/core/dev.c:1891)
[   45.874612][  T622]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   45.874798][  T622]  __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)
[   45.874991][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5343)
[   45.875268][  T622]  ? netif_set_allmulti (net/core/dev.c:9890)
[   45.875434][  T622]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   45.875623][  T622]  netif_change_flags (net/core/dev.c:9989)
[   45.875794][  T622]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   45.876092][  T622]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   45.876263][  T622]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   45.876433][  T622]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   45.876619][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.876904][  T622]  ? __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)
[   45.877083][  T622]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   45.877249][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   45.877419][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   45.877708][  T622]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   45.877884][  T622]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   45.878062][  T622]  ? __create_object (mm/kmemleak.c:786)
[   45.878233][  T622]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   45.878507][  T622]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   45.878697][  T622]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   45.878872][  T622]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   45.879050][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   45.879325][  T622]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   45.879496][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   45.879676][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.879852][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   45.880136][  T622]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   45.880309][  T622]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   45.880477][  T622]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   45.880662][  T622]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   45.880951][  T622]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   45.881120][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.881292][  T622]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   45.881463][  T622]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   45.881760][  T622]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   45.881956][  T622]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   45.882124][  T622]  ? 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)
[   45.882295][  T622]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   45.882585][  T622]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   45.882768][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.882960][  T622]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   45.883131][  T622]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   45.883417][  T622]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   45.883597][  T622]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   45.883777][  T622]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   45.883967][  T622]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   45.884282][  T622]  ? __copy_msghdr (net/socket.c:2556)
[   45.884453][  T622]  ___sys_sendmsg (net/socket.c:2686)
[   45.884634][  T622]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   45.884804][  T622]  ? __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)
[   45.885139][  T622]  ? copy_msghdr_from_user (net/socket.c:2673)
[   45.885310][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   45.885483][  T622]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   45.885773][  T622]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   45.885961][  T622]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   45.886143][  T622]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   45.886315][  T622]  __sys_sendmsg (net/socket.c:2716)
[   45.886605][  T622]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   45.886825][  T622]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   45.887010][  T622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   45.887203][  T622]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   45.887482][  T622]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   45.887712][  T622] RIP: 0033:0x7f02de4581d7
[   45.887903][  T622] 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)
[   45.888755][  T622] RSP: 002b:00007ffef80ef5a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.889032][  T622] RAX: ffffffffffffffda RBX: 00007ffef80efcd0 RCX: 00007f02de4581d7
[   45.889401][  T622] RDX: 0000000000000000 RSI: 00007ffef80ef610 RDI: 0000000000000005
[   45.889671][  T622] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   45.890044][  T622] R10: 00007f02de354f60 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