======================================
| [   39.133557][  T885] ==================================================================
| [   39.133960][  T885] 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)
| [   39.134290][  T885] Write of size 8 at addr 0000000000000000 by task ip/885
| [   39.134560][  T885]
[   39.134678][  T885] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.134680][  T885] Call Trace:
[   39.134683][  T885]  <TASK>
[   39.134685][  T885]  dump_stack_lvl (lib/dump_stack.c:123)
[   39.134693][  T885]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   39.134696][  T885]  kasan_report (mm/kasan/report.c:597)
[   39.134703][  T885]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   39.134708][  T885]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   39.134712][  T885]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   39.134718][  T885]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   39.134721][  T885]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   39.134725][  T885]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   39.134732][  T885]  __cancel_work_sync (kernel/workqueue.c:4383)
[   39.134736][  T885]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   39.134747][  T885]  ? netdev_notify_peers (net/core/dev.c:1891)
[   39.134754][  T885]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   39.134762][  T885]  __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)
[   39.134769][  T885]  ? netif_set_allmulti (net/core/dev.c:9890)
[   39.134775][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.134783][  T885]  netif_change_flags (net/core/dev.c:9989)
[   39.134788][  T885]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   39.134793][  T885] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   39.134800][  T885] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   39.134805][  T885]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   39.134811][  T885]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   39.134816][  T885]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   39.134822][  T885]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.134829][  T885]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   39.134834][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.134839][  T885]  ? __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)
[   39.134843][  T885]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   39.134846][  T885]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.134851][  T885]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.134854][  T885]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   39.134858][  T885]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   39.134863][  T885]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.134867][  T885]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   39.134870][  T885]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   39.134874][  T885]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   39.134879][  T885]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   39.134885][  T885]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   39.134890][  T885]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   39.134893][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.134899][  T885]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.134903][  T885]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   39.134905][  T885]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.134910][  T885]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   39.134912][  T885]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   39.134916][  T885]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   39.134921][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.134932][  T885]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   39.134938][  T885]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   39.134941][  T885]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   39.134948][  T885]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   39.134951][  T885]  ? 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)
[   39.134955][  T885]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   39.134959][  T885]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   39.134963][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.134969][  T885]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   39.134973][  T885]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   39.134977][  T885]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   39.134984][  T885]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   39.134988][  T885]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   39.134995][  T885]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   39.134998][  T885]  ? __copy_msghdr (net/socket.c:2556)
[   39.135006][  T885]  ___sys_sendmsg (net/socket.c:2686)
[   39.135010][  T885]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   39.135013][  T885]  ? __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)
[   39.135019][  T885]  ? copy_msghdr_from_user (net/socket.c:2673)
[   39.135024][  T885]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.135028][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.135034][  T885]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.135038][  T885]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   39.135044][  T885]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.135050][  T885]  __sys_sendmsg (net/socket.c:2716)
[   39.135053][  T885]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   39.135057][  T885]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   39.135065][  T885]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.135069][  T885]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   39.135076][  T885]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   39.135080][  T885] RIP: 0033:0x7f4ea907a1d7
[   39.135084][  T885] 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)
[   39.135088][  T885] RSP: 002b:00007ffda4285828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   39.135092][  T885] RAX: ffffffffffffffda RBX: 00007ffda4285f50 RCX: 00007f4ea907a1d7
[   39.135095][  T885] RDX: 0000000000000000 RSI: 00007ffda4285890 RDI: 0000000000000005
[   39.135097][  T885] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   39.135098][  T885] R10: 0000000022792910 R11: 0000000000000246 R12: 0000000000000004
[   39.135100][  T885] R13: 00000000691cce68 R14: 0000000000499600 R15: 0000000000000000
| [   39.158615][  T885] #PF: error_code(0x0002) - not-present page
| [   39.159003][  T885] PGD 9713067 P4D 9713067 PUD bd4f067 PMD 0
| [   39.159276][  T885] Oops: Oops: 0002 [#1] SMP KASAN
| [   39.159918][  T885] Tainted: [B]=BAD_PAGE
[   39.160075][  T885] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.160344][  T885] 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)
[   39.160627][  T885] 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
[   39.161371][  T885] RSP: 0018:ffffc900006e6e70 EFLAGS: 00010046
[   39.161640][  T885] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffb084090a
[   39.161943][  T885] RDX: fffffbfff694f2cd RSI: 0000000000000008 RDI: ffffffffb4a79660
[   39.162392][  T885] RBP: ffffc900006e6ed8 R08: 0000000000000001 R09: fffffbfff694f2cc
[   39.162717][  T885] R10: ffffffffb4a79667 R11: ffffc900006e6940 R12: 0000000000000000
[   39.163089][  T885] R13: 0000000000000282 R14: ffff88800d9a4000 R15: dffffc0000000000
[   39.163397][  T885] FS:  00007f4ea8eac800(0000) GS:ffff8880817f2000(0000) knlGS:0000000000000000
[   39.163810][  T885] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.164067][  T885] CR2: 0000000000000000 CR3: 000000000488e002 CR4: 0000000000772ef0
[   39.164389][  T885] PKRU: 55555554
[   39.164583][  T885] Call Trace:
[   39.164742][  T885]  <TASK>
[   39.164850][  T885]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   39.165052][  T885]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   39.165253][  T885]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   39.165611][  T885]  __cancel_work_sync (kernel/workqueue.c:4383)
[   39.165851][  T885]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   39.166049][  T885]  ? netdev_notify_peers (net/core/dev.c:1891)
[   39.166241][  T885]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   39.166594][  T885]  __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)
[   39.166796][  T885]  ? netif_set_allmulti (net/core/dev.c:9890)
[   39.166999][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.167194][  T885]  netif_change_flags (net/core/dev.c:9989)
[   39.167528][  T885]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   39.167753][  T885] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   39.167958][  T885] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   39.168155][  T885]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   39.168485][  T885]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   39.168713][  T885]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   39.168913][  T885]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.169240][  T885]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   39.169468][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.169715][  T885]  ? __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)
[   39.169900][  T885]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   39.170218][  T885]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.170411][  T885]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.170643][  T885]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   39.170857][  T885]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   39.171173][  T885]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.171373][  T885]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   39.171576][  T885]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   39.171780][  T885]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   39.172094][  T885]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   39.172280][  T885]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   39.172475][  T885]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   39.172676][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.173008][  T885]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.173204][  T885]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   39.173388][  T885]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.173585][  T885]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   39.173911][  T885]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   39.174105][  T885]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   39.174287][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.174475][  T885]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   39.174813][  T885]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   39.175015][  T885]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   39.175201][  T885]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   39.175394][  T885]  ? 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)
[   39.175712][  T885]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   39.175911][  T885]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   39.176105][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.176289][  T885]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   39.176606][  T885]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   39.176835][  T885]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   39.177046][  T885]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   39.177230][  T885]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   39.177536][  T885]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   39.177781][  T885]  ? __copy_msghdr (net/socket.c:2556)
[   39.177991][  T885]  ___sys_sendmsg (net/socket.c:2686)
[   39.178184][  T885]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   39.178495][  T885]  ? __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)
[   39.178758][  T885]  ? copy_msghdr_from_user (net/socket.c:2673)
[   39.178966][  T885]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.179273][  T885]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.179470][  T885]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.179656][  T885]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   39.179861][  T885]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.180195][  T885]  __sys_sendmsg (net/socket.c:2716)
[   39.180384][  T885]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   39.180616][  T885]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   39.180815][  T885]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.181134][  T885]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   39.181335][  T885]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   39.181563][  T885] RIP: 0033:0x7f4ea907a1d7
[   39.181900][  T885] 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)
[   39.182707][  T885] RSP: 002b:00007ffda4285828 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   39.183184][  T885] RAX: ffffffffffffffda RBX: 00007ffda4285f50 RCX: 00007f4ea907a1d7
[   39.183472][  T885] RDX: 0000000000000000 RSI: 00007ffda4285890 RDI: 0000000000000005
[   39.183763][  T885] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   39.184197][  T885] R10: 0000000022792910 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