======================================
| [   94.711462][  T668] ==================================================================
| [   94.711873][  T668] 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)
| [   94.712191][  T668] Write of size 8 at addr 0000000000000000 by task ip/668
| [   94.712546][  T668]
[   94.712668][  T668] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   94.712670][  T668] Call Trace:
[   94.712672][  T668]  <TASK>
[   94.712674][  T668]  dump_stack_lvl (lib/dump_stack.c:123)
[   94.712682][  T668]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   94.712685][  T668]  kasan_report (mm/kasan/report.c:597)
[   94.712691][  T668]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   94.712696][  T668]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   94.712700][  T668]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   94.712702][  T668]  ? __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)
[   94.712708][  T668]  ? netif_change_flags (net/core/dev.c:9989)
[   94.712713][  T668]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   94.712716][  T668]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   94.712720][  T668]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   94.712727][  T668]  __cancel_work_sync (kernel/workqueue.c:4383)
[   94.712733][  T668]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   94.712739][  T668]  ? netdev_notify_peers (net/core/dev.c:1891)
[   94.712744][  T668]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   94.712751][  T668]  __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)
[   94.712755][  T668]  ? netif_set_allmulti (net/core/dev.c:9890)
[   94.712759][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.712765][  T668]  netif_change_flags (net/core/dev.c:9989)
[   94.712770][  T668]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   94.712774][  T668]  cycle_netdev (drivers/net/vrf.c:1052)
[   94.712779][  T668]  vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102)
[   94.712782][  T668]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   94.712788][  T668]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   94.712793][  T668]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   94.712803][  T668]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   94.712810][  T668]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   94.712817][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.712822][  T668]  ? __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)
[   94.712825][  T668]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   94.712829][  T668]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   94.712837][  T668]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   94.712840][  T668]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   94.712843][  T668]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   94.712848][  T668]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   94.712852][  T668]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   94.712856][  T668]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   94.712859][  T668]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   94.712865][  T668]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   94.712871][  T668]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   94.712876][  T668]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   94.712879][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.712885][  T668]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   94.712889][  T668]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   94.712892][  T668]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   94.712896][  T668]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   94.712899][  T668]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   94.712903][  T668]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   94.712907][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.712914][  T668]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   94.712919][  T668]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   94.712923][  T668]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   94.712930][  T668]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   94.712934][  T668]  ? 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)
[   94.712938][  T668]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   94.712943][  T668]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   94.712947][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5601 kernel/locking/lockdep.c:5227)
[   94.712953][  T668]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   94.712958][  T668]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   94.712962][  T668]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   94.712967][  T668]  ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18)
[   94.712971][  T668]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   94.712975][  T668]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   94.712979][  T668]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   94.712982][  T668]  ? __copy_msghdr (net/socket.c:2556)
[   94.712989][  T668]  ___sys_sendmsg (net/socket.c:2686)
[   94.712992][  T668]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   94.712995][  T668]  ? __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)
[   94.713000][  T668]  ? copy_msghdr_from_user (net/socket.c:2673)
[   94.713004][  T668]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   94.713008][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.713014][  T668]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   94.713017][  T668]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   94.713022][  T668]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   94.713028][  T668]  __sys_sendmsg (net/socket.c:2716)
[   94.713030][  T668]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   94.713034][  T668]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   94.713041][  T668]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   94.713044][  T668]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   94.713049][  T668]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   94.713052][  T668] RIP: 0033:0x7faa5b3791d7
[   94.713057][  T668] 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)
[   94.713060][  T668] RSP: 002b:00007ffcda22a4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   94.713064][  T668] RAX: ffffffffffffffda RBX: 00007ffcda22ac00 RCX: 00007faa5b3791d7
[   94.713066][  T668] RDX: 0000000000000000 RSI: 00007ffcda22a530 RDI: 0000000000000005
[   94.713068][  T668] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   94.713069][  T668] R10: 0000000038638910 R11: 0000000000000246 R12: 0000000000000003
[   94.713071][  T668] R13: 00000000691cc089 R14: 0000000000499600 R15: 0000000000000000
| [   94.734898][  T668] #PF: error_code(0x0002) - not-present page
| [   94.735141][  T668] PGD 9d70067 P4D 9d70067 PUD c938067 PMD 0
| [   94.735392][  T668] Oops: Oops: 0002 [#1] SMP KASAN
| [   94.736122][  T668] Tainted: [B]=BAD_PAGE
[   94.736277][  T668] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   94.736646][  T668] 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)
[   94.736920][  T668] 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 df 81 84 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 df 81 84 00       	call   0x848209
  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
[   94.737749][  T668] RSP: 0018:ffffc90000fb6e70 EFLAGS: 00010046
[   94.738002][  T668] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa8640aaa
[   94.738312][  T668] RDX: fffffbfff590fecd RSI: 0000000000000008 RDI: ffffffffac87f660
[   94.738732][  T668] RBP: ffffc90000fb6ed8 R08: 0000000000000001 R09: fffffbfff590fecc
[   94.739032][  T668] R10: ffffffffac87f667 R11: ffffc90000fb6940 R12: 0000000000000000
[   94.739338][  T668] R13: 0000000000000282 R14: ffff888007654000 R15: dffffc0000000000
[   94.739632][  T668] FS:  00007faa5b1ab800(0000) GS:ffff888083eec000(0000) knlGS:0000000000000000
[   94.739992][  T668] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   94.740371][  T668] CR2: 0000000000000000 CR3: 0000000004e63006 CR4: 0000000000772ef0
[   94.740663][  T668] PKRU: 55555554
[   94.740887][  T668] Call Trace:
[   94.741035][  T668]  <TASK>
[   94.741251][  T668]  ? __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)
[   94.741471][  T668]  ? netif_change_flags (net/core/dev.c:9989)
[   94.741669][  T668]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   94.741881][  T668]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   94.742194][  T668]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   94.742395][  T668]  __cancel_work_sync (kernel/workqueue.c:4383)
[   94.742587][  T668]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   94.742793][  T668]  ? netdev_notify_peers (net/core/dev.c:1891)
[   94.743110][  T668]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   94.743323][  T668]  __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)
[   94.743516][  T668]  ? netif_set_allmulti (net/core/dev.c:9890)
[   94.743711][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.744030][  T668]  netif_change_flags (net/core/dev.c:9989)
[   94.744228][  T668]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   94.744429][  T668]  cycle_netdev (drivers/net/vrf.c:1052)
[   94.744580][  T668]  vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102)
[   94.744823][  T668]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   94.745134][  T668]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   94.745340][  T668]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   94.745534][  T668]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   94.745750][  T668]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   94.746065][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.746299][  T668]  ? __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)
[   94.746491][  T668]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   94.746694][  T668]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   94.747008][  T668]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   94.747206][  T668]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   94.747410][  T668]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   94.747602][  T668]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   94.747921][  T668]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   94.748131][  T668]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   94.748339][  T668]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   94.748531][  T668]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   94.748854][  T668]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   94.749052][  T668]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   94.749255][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.749464][  T668]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   94.749789][  T668]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   94.749993][  T668]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   94.750190][  T668]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   94.750388][  T668]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   94.750706][  T668]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   94.750911][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.751104][  T668]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   94.751316][  T668]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   94.751511][  T668]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   94.751732][  T668]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   94.751942][  T668]  ? 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)
[   94.752138][  T668]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   94.752494][  T668]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   94.752692][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5601 kernel/locking/lockdep.c:5227)
[   94.752907][  T668]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   94.753099][  T668]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   94.753430][  T668]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   94.753621][  T668]  ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18)
[   94.753843][  T668]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   94.754034][  T668]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   94.754362][  T668]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   94.754594][  T668]  ? __copy_msghdr (net/socket.c:2556)
[   94.754803][  T668]  ___sys_sendmsg (net/socket.c:2686)
[   94.755107][  T668]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   94.755327][  T668]  ? __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)
[   94.755562][  T668]  ? copy_msghdr_from_user (net/socket.c:2673)
[   94.755775][  T668]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   94.756082][  T668]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   94.756302][  T668]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   94.756495][  T668]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   94.756702][  T668]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   94.757054][  T668]  __sys_sendmsg (net/socket.c:2716)
[   94.757255][  T668]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   94.757508][  T668]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   94.757713][  T668]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   94.758028][  T668]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   94.758227][  T668]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   94.758473][  T668] RIP: 0033:0x7faa5b3791d7
[   94.758709][  T668] 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)
[   94.759581][  T668] RSP: 002b:00007ffcda22a4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   94.760065][  T668] RAX: ffffffffffffffda RBX: 00007ffcda22ac00 RCX: 00007faa5b3791d7
[   94.760371][  T668] RDX: 0000000000000000 RSI: 00007ffcda22a530 RDI: 0000000000000005
[   94.760669][  T668] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   94.761086][  T668] R10: 0000000038638910 R11: 0000000000000246 R12: 0000000000000003


Finger prints:
kasan_report:kasan_check_range:try_to_grab_pending:__cancel_work:__cancel_work_sync
try_to_grab_pending:__cancel_work:__cancel_work_sync:__dev_close_many:__dev_change_flags