======================================
| [   20.998054][  T320] ==================================================================
| [   20.998448][  T320] 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)
| [   20.998801][  T320] Write of size 8 at addr 0000000000000000 by task ip/320
| [   20.999079][  T320]
[   20.999192][  T320] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.999194][  T320] Call Trace:
[   20.999196][  T320]  <TASK>
[   20.999199][  T320]  dump_stack_lvl (lib/dump_stack.c:123)
[   20.999206][  T320]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   20.999209][  T320]  kasan_report (mm/kasan/report.c:597)
[   20.999215][  T320]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   20.999220][  T320]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   20.999223][  T320]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   20.999228][  T320]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   20.999232][  T320]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   20.999236][  T320]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   20.999242][  T320]  __cancel_work_sync (kernel/workqueue.c:4383)
[   20.999246][  T320]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   20.999252][  T320]  ? netdev_notify_peers (net/core/dev.c:1891)
[   20.999257][  T320]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   20.999262][  T320]  __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)
[   20.999266][  T320]  ? netif_set_allmulti (net/core/dev.c:9890)
[   20.999270][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.999276][  T320]  netif_change_flags (net/core/dev.c:9989)
[   20.999280][  T320]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   20.999284][  T320] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   20.999292][  T320] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   20.999297][  T320]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   20.999303][  T320]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   20.999307][  T320]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   20.999313][  T320]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.999319][  T320]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   20.999324][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.999330][  T320]  ? __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)
[   20.999336][  T320]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   20.999341][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.999347][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.999351][  T320]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   20.999355][  T320]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   20.999360][  T320]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.999363][  T320]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   20.999366][  T320]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   20.999370][  T320]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   20.999374][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   20.999379][  T320]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   20.999384][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.999387][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.999393][  T320]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.999398][  T320]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   20.999403][  T320]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.999410][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   20.999415][  T320]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   20.999420][  T320]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.999425][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.999439][  T320]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   20.999446][  T320]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   20.999453][  T320]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   20.999461][  T320]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   20.999464][  T320]  ? 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)
[   20.999468][  T320]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   20.999473][  T320]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   20.999476][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.999482][  T320]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   20.999487][  T320]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.999490][  T320]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   20.999497][  T320]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   20.999500][  T320]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   20.999506][  T320]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   20.999509][  T320]  ? __copy_msghdr (net/socket.c:2556)
[   20.999517][  T320]  ___sys_sendmsg (net/socket.c:2686)
[   20.999520][  T320]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   20.999523][  T320]  ? __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)
[   20.999528][  T320]  ? copy_msghdr_from_user (net/socket.c:2673)
[   20.999533][  T320]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.999538][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   20.999543][  T320]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   20.999547][  T320]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   20.999551][  T320]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   20.999558][  T320]  __sys_sendmsg (net/socket.c:2716)
[   20.999561][  T320]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   20.999565][  T320]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   20.999572][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   20.999576][  T320]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   20.999582][  T320]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   20.999586][  T320] RIP: 0033:0x7f2201f821d7
[   20.999590][  T320] 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)
[   20.999593][  T320] RSP: 002b:00007ffd1a14d7e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.999597][  T320] RAX: ffffffffffffffda RBX: 00007ffd1a14df10 RCX: 00007f2201f821d7
[   20.999599][  T320] RDX: 0000000000000000 RSI: 00007ffd1a14d850 RDI: 0000000000000005
[   20.999601][  T320] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   20.999602][  T320] R10: 0000000020c45910 R11: 0000000000000246 R12: 0000000000000003
[   20.999604][  T320] R13: 00000000691cc44f R14: 0000000000499600 R15: 0000000000000000
| [   21.020760][  T320] #PF: error_code(0x0002) - not-present page
| [   21.021027][  T320] PGD cbeb067 P4D cbeb067 PUD 8928067 PMD 0
| [   21.021287][  T320] Oops: Oops: 0002 [#1] SMP KASAN
| [   21.021901][  T320] Tainted: [B]=BAD_PAGE
[   21.022058][  T320] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.022311][  T320] 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)
[   21.022573][  T320] 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
[   21.023288][  T320] RSP: 0018:ffffc90000646e70 EFLAGS: 00010046
[   21.029953][  T320] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffb024090a
[   21.030754][  T320] RDX: fffffbfff688f2cd RSI: 0000000000000008 RDI: ffffffffb4479660
[   21.031205][  T320] RBP: ffffc90000646ed8 R08: 0000000000000001 R09: fffffbfff688f2cc
[   21.031527][  T320] R10: ffffffffb4479667 R11: ffffc90000646940 R12: 0000000000000000
[   21.031836][  T320] R13: 0000000000000282 R14: ffff888002869000 R15: dffffc0000000000
[   21.032153][  T320] FS:  00007f2201db4800(0000) GS:ffff888081ef2000(0000) knlGS:0000000000000000
[   21.032525][  T320] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.032779][  T320] CR2: 0000000000000000 CR3: 000000000cbe7001 CR4: 0000000000772ef0
[   21.033094][  T320] PKRU: 55555554
[   21.033371][  T320] Call Trace:
[   21.033546][  T320]  <TASK>
[   21.033649][  T320]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   21.033856][  T320]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   21.034075][  T320]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   21.034427][  T320]  __cancel_work_sync (kernel/workqueue.c:4383)
[   21.034627][  T320]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   21.034827][  T320]  ? netdev_notify_peers (net/core/dev.c:1891)
[   21.035046][  T320]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   21.035390][  T320]  __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)
[   21.035580][  T320]  ? netif_set_allmulti (net/core/dev.c:9890)
[   21.035772][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.035988][  T320]  netif_change_flags (net/core/dev.c:9989)
[   21.036303][  T320]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   21.036510][  T320] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   21.036702][  T320] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   21.036919][  T320]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   21.037234][  T320]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   21.037441][  T320]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   21.037640][  T320]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.037832][  T320]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   21.038162][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.038355][  T320]  ? __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)
[   21.038552][  T320]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   21.038740][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.039056][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.039247][  T320]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   21.039465][  T320]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   21.039654][  T320]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.039969][  T320]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   21.040159][  T320]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   21.040353][  T320]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   21.040543][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   21.040876][  T320]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   21.041094][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   21.041281][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.041479][  T320]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.041783][  T320]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   21.041970][  T320]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.042159][  T320]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   21.042361][  T320]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   21.042667][  T320]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   21.042859][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.043049][  T320]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   21.043237][  T320]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   21.043559][  T320]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   21.043751][  T320]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   21.043950][  T320]  ? 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)
[   21.044137][  T320]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   21.044450][  T320]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   21.044644][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.044865][  T320]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   21.045054][  T320]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   21.045385][  T320]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   21.045576][  T320]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   21.045790][  T320]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   21.045979][  T320]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   21.046346][  T320]  ? __copy_msghdr (net/socket.c:2556)
[   21.046562][  T320]  ___sys_sendmsg (net/socket.c:2686)
[   21.046751][  T320]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   21.046963][  T320]  ? __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)
[   21.047317][  T320]  ? copy_msghdr_from_user (net/socket.c:2673)
[   21.047515][  T320]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.047734][  T320]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.047926][  T320]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.048267][  T320]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   21.048485][  T320]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.048675][  T320]  __sys_sendmsg (net/socket.c:2716)
[   21.048883][  T320]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   21.049238][  T320]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   21.049436][  T320]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.049649][  T320]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.049974][  T320]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   21.050208][  T320] RIP: 0033:0x7f2201f821d7
[   21.050407][  T320] 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)
[   21.051276][  T320] RSP: 002b:00007ffd1a14d7e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.051595][  T320] RAX: ffffffffffffffda RBX: 00007ffd1a14df10 RCX: 00007f2201f821d7
[   21.052024][  T320] RDX: 0000000000000000 RSI: 00007ffd1a14d850 RDI: 0000000000000005
[   21.052310][  T320] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   21.052598][  T320] R10: 0000000020c45910 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