======================================
| [   23.021459][  T346] ==================================================================
| [   23.021817][  T346] 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)
| [   23.022157][  T346] Write of size 8 at addr 0000000000000000 by task ip/346
| [   23.022398][  T346]
[   23.022525][  T346] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.022529][  T346] Call Trace:
[   23.022534][  T346]  <TASK>
[   23.022535][  T346]  dump_stack_lvl (lib/dump_stack.c:123)
[   23.022553][  T346]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   23.022557][  T346]  kasan_report (mm/kasan/report.c:597)
[   23.022569][  T346]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   23.022574][  T346]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   23.022578][  T346]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   23.022583][  T346]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   23.022586][  T346]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   23.022590][  T346]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   23.022601][  T346]  __cancel_work_sync (kernel/workqueue.c:4383)
[   23.022605][  T346]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   23.022619][  T346]  ? netdev_notify_peers (net/core/dev.c:1891)
[   23.022626][  T346]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   23.022637][  T346]  __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)
[   23.022643][  T346]  ? netif_set_allmulti (net/core/dev.c:9890)
[   23.022647][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.022655][  T346]  netif_change_flags (net/core/dev.c:9989)
[   23.022659][  T346]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   23.022663][  T346] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   23.022671][  T346] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   23.022677][  T346]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   23.022684][  T346]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   23.022689][  T346]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   23.022694][  T346]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.022704][  T346]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   23.022709][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.022714][  T346]  ? __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)
[   23.022718][  T346]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   23.022721][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.022728][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.022732][  T346]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   23.022735][  T346]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   23.022752][  T346]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.022757][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   23.022760][  T346]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   23.022764][  T346]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   23.022776][  T346]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   23.022782][  T346]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   23.022787][  T346]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.022790][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.022795][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.022799][  T346]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   23.022801][  T346]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.022806][  T346]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.022809][  T346]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   23.022813][  T346]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.022815][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.022823][  T346]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   23.022831][  T346]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.022836][  T346]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   23.022845][  T346]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   23.022848][  T346]  ? 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)
[   23.022852][  T346]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   23.022856][  T346]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   23.022860][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.022866][  T346]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   23.022870][  T346]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.022874][  T346]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   23.022887][  T346]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.022891][  T346]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   23.022900][  T346]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   23.022904][  T346]  ? __copy_msghdr (net/socket.c:2556)
[   23.022911][  T346]  ___sys_sendmsg (net/socket.c:2686)
[   23.022915][  T346]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   23.022917][  T346]  ? __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)
[   23.022924][  T346]  ? copy_msghdr_from_user (net/socket.c:2673)
[   23.022929][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.022934][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.022939][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.022943][  T346]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   23.022956][  T346]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.022963][  T346]  __sys_sendmsg (net/socket.c:2716)
[   23.022966][  T346]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   23.022970][  T346]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   23.022977][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.022981][  T346]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.022989][  T346]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   23.022997][  T346] RIP: 0033:0x7fab8fec21d7
[   23.023003][  T346] 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)
[   23.023007][  T346] RSP: 002b:00007ffd411a68a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.023014][  T346] RAX: ffffffffffffffda RBX: 00007ffd411a6fd0 RCX: 00007fab8fec21d7
[   23.023016][  T346] RDX: 0000000000000000 RSI: 00007ffd411a6910 RDI: 0000000000000005
[   23.023018][  T346] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.023020][  T346] R10: 0000000020a99910 R11: 0000000000000246 R12: 0000000000000004
[   23.023021][  T346] R13: 00000000691ccbe4 R14: 0000000000499600 R15: 0000000000000000
| [   23.043305][  T346] #PF: error_code(0x0002) - not-present page
| [   23.043654][  T346] PGD 509c067 P4D 509c067 PUD 8974067 PMD 0
| [   23.043900][  T346] Oops: Oops: 0002 [#1] SMP KASAN
| [   23.044474][  T346] Tainted: [B]=BAD_PAGE
[   23.044619][  T346] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.044864][  T346] 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)
[   23.045246][  T346] 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
[   23.046052][  T346] RSP: 0018:ffffc90000686e70 EFLAGS: 00010046
[   23.046532][  T346] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9044090a
[   23.046835][  T346] RDX: fffffbfff28cf2cd RSI: 0000000000000008 RDI: ffffffff94679660
[   23.047234][  T346] RBP: ffffc90000686ed8 R08: 0000000000000001 R09: fffffbfff28cf2cc
[   23.047519][  T346] R10: ffffffff94679667 R11: ffffc90000686940 R12: 0000000000000000
[   23.047829][  T346] R13: 0000000000000282 R14: ffff888005151000 R15: dffffc0000000000
[   23.048114][  T346] FS:  00007fab8fcf4800(0000) GS:ffff88809bff2000(0000) knlGS:0000000000000000
[   23.048441][  T346] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.048693][  T346] CR2: 0000000000000000 CR3: 0000000008960004 CR4: 0000000000772ef0
[   23.048983][  T346] PKRU: 55555554
[   23.049122][  T346] Call Trace:
[   23.049285][  T346]  <TASK>
[   23.049384][  T346]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   23.049582][  T346]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   23.050033][  T346]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   23.050221][  T346]  __cancel_work_sync (kernel/workqueue.c:4383)
[   23.050405][  T346]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   23.050607][  T346]  ? netdev_notify_peers (net/core/dev.c:1891)
[   23.050936][  T346]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   23.051124][  T346]  __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)
[   23.051425][  T346]  ? netif_set_allmulti (net/core/dev.c:9890)
[   23.051618][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.051950][  T346]  netif_change_flags (net/core/dev.c:9989)
[   23.052137][  T346]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   23.052324][  T346] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   23.052646][  T346] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   23.052849][  T346]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   23.053036][  T346]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   23.053225][  T346]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   23.053420][  T346]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.053615][  T346]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   23.053821][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.054136][  T346]  ? __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)
[   23.054325][  T346]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   23.054646][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.054959][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.055261][  T346]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   23.055460][  T346]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   23.055652][  T346]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.055849][  T346]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   23.056036][  T346]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   23.056220][  T346]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   23.056404][  T346]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   23.056605][  T346]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   23.056928][  T346]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.057110][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.057296][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.057497][  T346]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   23.057696][  T346]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.057894][  T346]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   23.058078][  T346]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   23.058501][  T346]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.058693][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.058891][  T346]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   23.059076][  T346]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   23.059264][  T346]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   23.059578][  T346]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   23.060010][  T346]  ? 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)
[   23.060197][  T346]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   23.060379][  T346]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   23.060575][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.060766][  T346]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   23.060967][  T346]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.061150][  T346]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   23.061336][  T346]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   23.061769][  T346]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   23.061967][  T346]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   23.062192][  T346]  ? __copy_msghdr (net/socket.c:2556)
[   23.062380][  T346]  ___sys_sendmsg (net/socket.c:2686)
[   23.062708][  T346]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   23.062903][  T346]  ? __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)
[   23.063135][  T346]  ? copy_msghdr_from_user (net/socket.c:2673)
[   23.063444][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.063642][  T346]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   23.063964][  T346]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   23.064153][  T346]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   23.064345][  T346]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   23.064540][  T346]  __sys_sendmsg (net/socket.c:2716)
[   23.064734][  T346]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   23.064976][  T346]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   23.065162][  T346]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   23.065471][  T346]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   23.065670][  T346]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   23.065905][  T346] RIP: 0033:0x7fab8fec21d7
[   23.066103][  T346] 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)
[   23.066770][  T346] RSP: 002b:00007ffd411a68a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.067174][  T346] RAX: ffffffffffffffda RBX: 00007ffd411a6fd0 RCX: 00007fab8fec21d7
[   23.067456][  T346] RDX: 0000000000000000 RSI: 00007ffd411a6910 RDI: 0000000000000005
[   23.067876][  T346] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   23.068148][  T346] R10: 0000000020a99910 R11: 0000000000000246 R12: 0000000000000004


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