======================================
| [   21.808525][  T329] ==================================================================
| [   21.808938][  T329] 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)
| [   21.809300][  T329] Write of size 8 at addr 0000000000000000 by task ip/329
| [   21.809546][  T329]
[   21.809658][  T329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.809662][  T329] Call Trace:
[   21.809669][  T329]  <TASK>
[   21.809675][  T329]  dump_stack_lvl (lib/dump_stack.c:123)
[   21.809691][  T329]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   21.809694][  T329]  kasan_report (mm/kasan/report.c:597)
[   21.809701][  T329]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   21.809706][  T329]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   21.809710][  T329]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   21.809714][  T329]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   21.809717][  T329]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   21.809722][  T329]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   21.809728][  T329]  __cancel_work_sync (kernel/workqueue.c:4383)
[   21.809732][  T329]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   21.809742][  T329]  ? netdev_notify_peers (net/core/dev.c:1891)
[   21.809752][  T329]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   21.809756][  T329]  __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)
[   21.809760][  T329]  ? netif_set_allmulti (net/core/dev.c:9890)
[   21.809763][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.809784][  T329]  netif_change_flags (net/core/dev.c:9989)
[   21.809789][  T329]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   21.809793][  T329] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   21.809800][  T329] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   21.809805][  T329]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   21.809813][  T329]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   21.809818][  T329]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   21.809824][  T329]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.809829][  T329]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   21.809835][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.809840][  T329]  ? __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)
[   21.809844][  T329]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   21.809847][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.809852][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.809855][  T329]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   21.809858][  T329]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   21.809865][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.809868][  T329]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   21.809873][  T329]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   21.809877][  T329]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   21.809881][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   21.809887][  T329]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   21.809892][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   21.809895][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.809901][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.809904][  T329]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   21.809907][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.809911][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   21.809914][  T329]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   21.809918][  T329]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   21.809921][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.809928][  T329]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   21.809932][  T329]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   21.809936][  T329]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   21.809942][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   21.809945][  T329]  ? 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)
[   21.809949][  T329]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   21.809953][  T329]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   21.809957][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.809963][  T329]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   21.809967][  T329]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   21.809971][  T329]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   21.809977][  T329]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   21.809980][  T329]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   21.809986][  T329]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   21.809989][  T329]  ? __copy_msghdr (net/socket.c:2556)
[   21.809996][  T329]  ___sys_sendmsg (net/socket.c:2686)
[   21.809999][  T329]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   21.810002][  T329]  ? __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)
[   21.810011][  T329]  ? copy_msghdr_from_user (net/socket.c:2673)
[   21.810016][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.810021][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.810026][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.810030][  T329]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   21.810035][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.810041][  T329]  __sys_sendmsg (net/socket.c:2716)
[   21.810044][  T329]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   21.810048][  T329]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   21.810059][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.810063][  T329]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.810068][  T329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   21.810074][  T329] RIP: 0033:0x7fae4cd001d7
[   21.810080][  T329] 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)
[   21.810083][  T329] RSP: 002b:00007ffd6f145178 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.810091][  T329] RAX: ffffffffffffffda RBX: 00007ffd6f1458a0 RCX: 00007fae4cd001d7
[   21.810093][  T329] RDX: 0000000000000000 RSI: 00007ffd6f1451e0 RDI: 0000000000000005
[   21.810095][  T329] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   21.810097][  T329] R10: 000000003e5c1910 R11: 0000000000000246 R12: 0000000000000004
[   21.810099][  T329] R13: 00000000691cda0c R14: 0000000000499600 R15: 0000000000000000
| [   21.831369][  T329] #PF: error_code(0x0002) - not-present page
| [   21.831628][  T329] PGD ed05067 P4D ed05067 PUD 8eac067 PMD 0
| [   21.831878][  T329] Oops: Oops: 0002 [#1] SMP KASAN
| [   21.832520][  T329] Tainted: [B]=BAD_PAGE
[   21.832663][  T329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.832898][  T329] 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)
[   21.833177][  T329] 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
[   21.833914][  T329] RSP: 0018:ffffc900005c6e70 EFLAGS: 00010046
[   21.834192][  T329] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffab24090a
[   21.834522][  T329] RDX: fffffbfff5e8f2cd RSI: 0000000000000008 RDI: ffffffffaf479660
[   21.834810][  T329] RBP: ffffc900005c6ed8 R08: 0000000000000001 R09: fffffbfff5e8f2cc
[   21.835152][  T329] R10: ffffffffaf479667 R11: ffffc900005c6940 R12: 0000000000000000
[   21.835465][  T329] R13: 0000000000000282 R14: ffff888005401000 R15: dffffc0000000000
[   21.835770][  T329] FS:  00007fae4cb32800(0000) GS:ffff888086df2000(0000) knlGS:0000000000000000
[   21.836140][  T329] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.836395][  T329] CR2: 0000000000000000 CR3: 000000000c973003 CR4: 0000000000772ef0
[   21.836688][  T329] PKRU: 55555554
[   21.836846][  T329] Call Trace:
[   21.836992][  T329]  <TASK>
[   21.837106][  T329]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   21.837332][  T329]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   21.837531][  T329]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   21.837711][  T329]  __cancel_work_sync (kernel/workqueue.c:4383)
[   21.837900][  T329]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   21.838091][  T329]  ? netdev_notify_peers (net/core/dev.c:1891)
[   21.838275][  T329]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   21.838463][  T329]  __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)
[   21.838670][  T329]  ? netif_set_allmulti (net/core/dev.c:9890)
[   21.838866][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.839061][  T329]  netif_change_flags (net/core/dev.c:9989)
[   21.839262][  T329]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   21.839444][  T329] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   21.839670][  T329] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   21.839885][  T329]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   21.840107][  T329]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   21.840311][  T329]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   21.840500][  T329]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.840694][  T329]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   21.840889][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.841078][  T329]  ? __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)
[   21.841282][  T329]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   21.841463][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.841678][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.841860][  T329]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   21.842039][  T329]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   21.842235][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.842459][  T329]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   21.842679][  T329]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   21.842875][  T329]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   21.843066][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   21.843255][  T329]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   21.843468][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   21.843673][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.843894][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.844087][  T329]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   21.844279][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.844477][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   21.844682][  T329]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   21.844930][  T329]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   21.845125][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.845322][  T329]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   21.845510][  T329]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   21.845715][  T329]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   21.845934][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   21.846129][  T329]  ? 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)
[   21.846319][  T329]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   21.846521][  T329]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   21.846708][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.846892][  T329]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   21.847074][  T329]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   21.847267][  T329]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   21.847464][  T329]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   21.847661][  T329]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   21.847843][  T329]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   21.848106][  T329]  ? __copy_msghdr (net/socket.c:2556)
[   21.848310][  T329]  ___sys_sendmsg (net/socket.c:2686)
[   21.848508][  T329]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   21.848724][  T329]  ? __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)
[   21.848952][  T329]  ? copy_msghdr_from_user (net/socket.c:2673)
[   21.849145][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.849333][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   21.849569][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   21.849768][  T329]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   21.850011][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   21.850196][  T329]  __sys_sendmsg (net/socket.c:2716)
[   21.850397][  T329]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   21.850641][  T329]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   21.850838][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   21.851051][  T329]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   21.851236][  T329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   21.851485][  T329] RIP: 0033:0x7fae4cd001d7
[   21.851716][  T329] 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)
[   21.852431][  T329] RSP: 002b:00007ffd6f145178 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.852752][  T329] RAX: ffffffffffffffda RBX: 00007ffd6f1458a0 RCX: 00007fae4cd001d7
[   21.853111][  T329] RDX: 0000000000000000 RSI: 00007ffd6f1451e0 RDI: 0000000000000005
[   21.853494][  T329] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   21.853809][  T329] R10: 000000003e5c1910 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