======================================
| [   20.569703][  T319] ==================================================================
| [   20.570078][  T319] 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)
| [   20.570440][  T319] Write of size 8 at addr 0000000000000000 by task ip/319
| [   20.570726][  T319]
[   20.570850][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.570853][  T319] Call Trace:
[   20.570855][  T319]  <TASK>
[   20.570857][  T319]  dump_stack_lvl (lib/dump_stack.c:123)
[   20.570868][  T319]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   20.570871][  T319]  kasan_report (mm/kasan/report.c:597)
[   20.570878][  T319]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   20.570884][  T319]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   20.570887][  T319]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   20.570892][  T319]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   20.570895][  T319]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   20.570900][  T319]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   20.570908][  T319]  __cancel_work_sync (kernel/workqueue.c:4383)
[   20.570912][  T319]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   20.570920][  T319]  ? netdev_notify_peers (net/core/dev.c:1891)
[   20.570924][  T319]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   20.570929][  T319]  __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)
[   20.570934][  T319]  ? netif_set_allmulti (net/core/dev.c:9890)
[   20.570937][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.570945][  T319]  netif_change_flags (net/core/dev.c:9989)
[   20.570949][  T319]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   20.570953][  T319] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   20.570961][  T319] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   20.570966][  T319]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   20.570972][  T319]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   20.570977][  T319]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   20.570983][  T319]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.570990][  T319]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   20.570995][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.571000][  T319]  ? __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)
[   20.571004][  T319]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   20.571007][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.571012][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.571015][  T319]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   20.571018][  T319]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   20.571025][  T319]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.571028][  T319]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   20.571031][  T319]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   20.571034][  T319]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   20.571043][  T319]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   20.571048][  T319]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   20.571053][  T319]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.571055][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.571061][  T319]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.571065][  T319]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   20.571067][  T319]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.571072][  T319]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.571075][  T319]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   20.571079][  T319]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.571081][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.571089][  T319]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   20.571094][  T319]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.571097][  T319]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   20.571104][  T319]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   20.571107][  T319]  ? 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)
[   20.571111][  T319]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   20.571115][  T319]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   20.571119][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.571125][  T319]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   20.571129][  T319]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.571133][  T319]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   20.571140][  T319]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.571144][  T319]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   20.571150][  T319]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   20.571153][  T319]  ? __copy_msghdr (net/socket.c:2556)
[   20.571161][  T319]  ___sys_sendmsg (net/socket.c:2686)
[   20.571164][  T319]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   20.571167][  T319]  ? __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)
[   20.571175][  T319]  ? copy_msghdr_from_user (net/socket.c:2673)
[   20.571180][  T319]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.571184][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.571190][  T319]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.571193][  T319]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   20.571207][  T319]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.571213][  T319]  __sys_sendmsg (net/socket.c:2716)
[   20.571216][  T319]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   20.571220][  T319]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   20.571228][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.571232][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.571239][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   20.571247][  T319] RIP: 0033:0x7f71c3b0b1d7
[   20.571252][  T319] 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)
[   20.571255][  T319] RSP: 002b:00007ffebc660928 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.571259][  T319] RAX: ffffffffffffffda RBX: 00007ffebc661050 RCX: 00007f71c3b0b1d7
[   20.571262][  T319] RDX: 0000000000000000 RSI: 00007ffebc660990 RDI: 0000000000000005
[   20.571264][  T319] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   20.571266][  T319] R10: 0000000034f24910 R11: 0000000000000246 R12: 0000000000000003
[   20.571267][  T319] R13: 00000000691cc356 R14: 0000000000499600 R15: 0000000000000000
| [   20.595102][  T319] #PF: error_code(0x0002) - not-present page
| [   20.595700][  T319] PGD cde8067 P4D cde8067 PUD 8c61067 PMD 0
| [   20.596117][  T319] Oops: Oops: 0002 [#1] SMP KASAN
| [   20.597321][  T319] Tainted: [B]=BAD_PAGE
[   20.597572][  T319] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.597974][  T319] 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)
[   20.598613][  T319] 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
[   20.599754][  T319] RSP: 0000:ffffc900004d6e70 EFLAGS: 00010046
[   20.600384][  T319] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9284090a
[   20.600856][  T319] RDX: fffffbfff2d4f2cd RSI: 0000000000000008 RDI: ffffffff96a79660
[   20.601546][  T319] RBP: ffffc900004d6ed8 R08: 0000000000000001 R09: fffffbfff2d4f2cc
[   20.602037][  T319] R10: ffffffff96a79667 R11: ffffc900004d6940 R12: 0000000000000000
[   20.602739][  T319] R13: 0000000000000282 R14: ffff88800c08c000 R15: dffffc0000000000
[   20.603219][  T319] FS:  00007f71c393d800(0000) GS:ffff888099ef2000(0000) knlGS:0000000000000000
[   20.604049][  T319] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.604460][  T319] CR2: 0000000000000000 CR3: 000000000ed20004 CR4: 0000000000772ef0
[   20.605371][  T319] PKRU: 55555554
[   20.605617][  T319] Call Trace:
[   20.605861][  T319]  <TASK>
[   20.606032][  T319]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   20.606572][  T319]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   20.606906][  T319]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   20.607233][  T319]  __cancel_work_sync (kernel/workqueue.c:4383)
[   20.607551][  T319]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   20.608084][  T319]  ? netdev_notify_peers (net/core/dev.c:1891)
[   20.608405][  T319]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   20.608730][  T319]  __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)
[   20.609054][  T319]  ? netif_set_allmulti (net/core/dev.c:9890)
[   20.609585][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.609923][  T319]  netif_change_flags (net/core/dev.c:9989)
[   20.610252][  T319]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   20.610562][  T319] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   20.611021][  T319] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   20.611223][  T319]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   20.611487][  T319]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   20.611743][  T319]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   20.612113][  T319]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.612375][  T319]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   20.612594][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.612906][  T319]  ? __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)
[   20.613166][  T319]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   20.613411][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.613741][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.614069][  T319]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   20.614466][  T319]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   20.614684][  T319]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.614932][  T319]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   20.615238][  T319]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   20.615630][  T319]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   20.615879][  T319]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   20.616082][  T319]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   20.616279][  T319]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.616605][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.616882][  T319]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.617140][  T319]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   20.617406][  T319]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.617914][  T319]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.618235][  T319]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   20.618514][  T319]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.618825][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.619258][  T319]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   20.619561][  T319]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.619876][  T319]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   20.620205][  T319]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   20.620572][  T319]  ? 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)
[   20.620825][  T319]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   20.621057][  T319]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   20.621299][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.621699][  T319]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   20.622016][  T319]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.622267][  T319]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   20.622497][  T319]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.622838][  T319]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   20.623050][  T319]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   20.623436][  T319]  ? __copy_msghdr (net/socket.c:2556)
[   20.623667][  T319]  ___sys_sendmsg (net/socket.c:2686)
[   20.624030][  T319]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   20.624234][  T319]  ? __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)
[   20.624523][  T319]  ? copy_msghdr_from_user (net/socket.c:2673)
[   20.624836][  T319]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.625313][  T319]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.625639][  T319]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.625896][  T319]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   20.626164][  T319]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.626619][  T319]  __sys_sendmsg (net/socket.c:2716)
[   20.626865][  T319]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   20.627196][  T319]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   20.627450][  T319]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.627792][  T319]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.627993][  T319]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   20.628240][  T319] RIP: 0033:0x7f71c3b0b1d7
[   20.628674][  T319] 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)
[   20.629605][  T319] RSP: 002b:00007ffebc660928 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.630276][  T319] RAX: ffffffffffffffda RBX: 00007ffebc661050 RCX: 00007f71c3b0b1d7
[   20.630715][  T319] RDX: 0000000000000000 RSI: 00007ffebc660990 RDI: 0000000000000005
[   20.631114][  T319] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   20.631425][  T319] R10: 0000000034f24910 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