======================================
| [  149.900119][  T750] ==================================================================
| [  149.900429][  T750] 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)
| [  149.900722][  T750] Write of size 8 at addr 0000000000000000 by task ip/750
| [  149.900983][  T750]
[  149.901087][  T750] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  149.901093][  T750] Call Trace:
[  149.901095][  T750]  <TASK>
[  149.901097][  T750]  dump_stack_lvl (lib/dump_stack.c:123)
[  149.901108][  T750]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  149.901111][  T750]  kasan_report (mm/kasan/report.c:597)
[  149.901116][  T750]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  149.901121][  T750]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[  149.901125][  T750]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[  149.901130][  T750]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[  149.901133][  T750]  ? enable_delayed_work (kernel/workqueue.c:4359)
[  149.901137][  T750]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[  149.901140][  T750]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  149.901146][  T750]  __cancel_work_sync (kernel/workqueue.c:4383)
[  149.901150][  T750]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[  149.901160][  T750]  ? netdev_notify_peers (net/core/dev.c:1891)
[  149.901164][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.901170][  T750]  netif_close_many (net/core/dev.c:1959)
[  149.901174][  T750]  ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[  149.901181][  T750]  ? __dev_close_many (net/core/dev.c:1949)
[  149.901184][  T750]  ? dev_getbyhwaddr_rcu (net/core/dev.c:10950)
[  149.901187][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.901192][  T750]  __dev_change_net_namespace (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1975 net/core/dev.c:1968 net/core/dev.c:12746)
[  149.901200][  T750]  ? default_device_exit_batch (net/core/dev.c:12662)
[  149.901203][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.901206][  T750]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  149.901211][  T750]  ? rtnl_af_lookup (net/core/rtnetlink.c:2675)
[  149.901215][  T750]  ? is_bpf_text_address (kernel/bpf/core.c:749)
[  149.901221][  T750]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[  149.901226][  T750]  do_setlink.constprop.0 (net/core/rtnetlink.c:3060)
[  149.901231][  T750]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[  149.901236][  T750]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  149.901241][  T750]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[  149.901246][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.901251][  T750]  ? __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)
[  149.901254][  T750]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[  149.901257][  T750]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  149.901262][  T750]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  149.901265][  T750]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[  149.901268][  T750]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[  149.901273][  T750]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  149.901276][  T750]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  149.901279][  T750]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[  149.901283][  T750]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[  149.901288][  T750]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[  149.901294][  T750]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  149.901298][  T750]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  149.901301][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.901307][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.901311][  T750]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  149.901313][  T750]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  149.901317][  T750]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  149.901320][  T750]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  149.901324][  T750]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  149.901326][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.901333][  T750]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  149.901339][  T750]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  149.901343][  T750]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  149.901350][  T750]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  149.901352][  T750]  ? 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)
[  149.901356][  T750]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  149.901360][  T750]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  149.901364][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.901370][  T750]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  149.901374][  T750]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  149.901378][  T750]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  149.901388][  T750]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  149.901391][  T750]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  149.901398][  T750]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  149.901402][  T750]  ? __copy_msghdr (net/socket.c:2556)
[  149.901409][  T750]  ___sys_sendmsg (net/socket.c:2686)
[  149.901412][  T750]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[  149.901415][  T750]  ? __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)
[  149.901420][  T750]  ? copy_msghdr_from_user (net/socket.c:2673)
[  149.901425][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.901430][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.901436][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.901439][  T750]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[  149.901447][  T750]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  149.901457][  T750]  __sys_sendmsg (net/socket.c:2716)
[  149.901462][  T750]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[  149.901467][  T750]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  149.901474][  T750]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  149.901478][  T750]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  149.901484][  T750]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  149.901488][  T750] RIP: 0033:0x7facfb1091d7
[  149.901492][  T750] 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)
[  149.901497][  T750] RSP: 002b:00007ffd7b6b8f28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  149.901501][  T750] RAX: ffffffffffffffda RBX: 00007ffd7b6b9650 RCX: 00007facfb1091d7
[  149.901504][  T750] RDX: 0000000000000000 RSI: 00007ffd7b6b8f90 RDI: 0000000000000005
[  149.901506][  T750] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[  149.901507][  T750] R10: 00007facfb005f60 R11: 0000000000000246 R12: 0000000000000004
[  149.901509][  T750] R13: 00000000691cc0b4 R14: 0000000000499600 R15: 0000000000000000
| [  149.922397][  T750] #PF: error_code(0x0002) - not-present page
| [  149.922621][  T750] PGD bdbc067 P4D bdbc067 PUD 8a92067 PMD 0
| [  149.922958][  T750] Oops: Oops: 0002 [#1] SMP KASAN
| [  149.923499][  T750] Tainted: [B]=BAD_PAGE
[  149.923744][  T750] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  149.923971][  T750] 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)
[  149.924193][  T750] 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
[  149.924933][  T750] RSP: 0018:ffffc90000d86dd0 EFLAGS: 00010046
[  149.925151][  T750] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffade4090a
[  149.925543][  T750] RDX: fffffbfff640f2cd RSI: 0000000000000008 RDI: ffffffffb2079660
[  149.925804][  T750] RBP: ffffc90000d86e38 R08: 0000000000000001 R09: fffffbfff640f2cc
[  149.926169][  T750] R10: ffffffffb2079667 R11: ffffc90000d868c0 R12: 0000000000000000
[  149.926456][  T750] R13: 0000000000000282 R14: ffff8880104f1000 R15: dffffc0000000000
[  149.926729][  T750] FS:  00007facfaf3b800(0000) GS:ffff8880842f2000(0000) knlGS:0000000000000000
[  149.927143][  T750] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  149.927358][  T750] CR2: 0000000000000000 CR3: 0000000009868004 CR4: 0000000000772ef0
[  149.927641][  T750] PKRU: 55555554
[  149.927885][  T750] Call Trace:
[  149.928019][  T750]  <TASK>
[  149.928111][  T750]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[  149.928282][  T750]  ? enable_delayed_work (kernel/workqueue.c:4359)
[  149.928463][  T750]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[  149.928743][  T750]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[  149.928922][  T750]  __cancel_work_sync (kernel/workqueue.c:4383)
[  149.929092][  T750]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[  149.929264][  T750]  ? netdev_notify_peers (net/core/dev.c:1891)
[  149.929550][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.929720][  T750]  netif_close_many (net/core/dev.c:1959)
[  149.929895][  T750]  ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186)
[  149.930068][  T750]  ? __dev_close_many (net/core/dev.c:1949)
[  149.930339][  T750]  ? dev_getbyhwaddr_rcu (net/core/dev.c:10950)
[  149.930513][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.930684][  T750]  __dev_change_net_namespace (./include/linux/list.h:119 ./include/linux/list.h:223 ./include/linux/list.h:237 net/core/dev.c:1975 net/core/dev.c:1968 net/core/dev.c:12746)
[  149.931027][  T750]  ? default_device_exit_batch (net/core/dev.c:12662)
[  149.931236][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.931411][  T750]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  149.931610][  T750]  ? rtnl_af_lookup (net/core/rtnetlink.c:2675)
[  149.931907][  T750]  ? is_bpf_text_address (kernel/bpf/core.c:749)
[  149.932084][  T750]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[  149.932255][  T750]  do_setlink.constprop.0 (net/core/rtnetlink.c:3060)
[  149.932436][  T750]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[  149.932735][  T750]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  149.932940][  T750]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[  149.933134][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.933373][  T750]  ? __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)
[  149.933734][  T750]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[  149.933980][  T750]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  149.934251][  T750]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  149.934504][  T750]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[  149.934814][  T750]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[  149.934985][  T750]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  149.935160][  T750]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[  149.935329][  T750]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[  149.935613][  T750]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[  149.935829][  T750]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[  149.936013][  T750]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[  149.936191][  T750]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  149.936472][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.936656][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.936840][  T750]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[  149.937010][  T750]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  149.937286][  T750]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[  149.937460][  T750]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[  149.937656][  T750]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  149.937845][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.938024][  T750]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[  149.938208][  T750]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[  149.938408][  T750]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[  149.938608][  T750]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[  149.938904][  T750]  ? 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)
[  149.939088][  T750]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[  149.939269][  T750]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[  149.939449][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.939757][  T750]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[  149.939936][  T750]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  149.940116][  T750]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[  149.940302][  T750]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[  149.940584][  T750]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[  149.940762][  T750]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[  149.940977][  T750]  ? __copy_msghdr (net/socket.c:2556)
[  149.941186][  T750]  ___sys_sendmsg (net/socket.c:2686)
[  149.941510][  T750]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[  149.941723][  T750]  ? __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)
[  149.941999][  T750]  ? copy_msghdr_from_user (net/socket.c:2673)
[  149.942204][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.942566][  T750]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[  149.942815][  T750]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[  149.943091][  T750]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[  149.943365][  T750]  ? __lock_release (kernel/locking/lockdep.c:5536)
[  149.943763][  T750]  __sys_sendmsg (net/socket.c:2716)
[  149.943931][  T750]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[  149.944141][  T750]  ? __sys_sendmsg_sock (net/socket.c:2701)
[  149.944416][  T750]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[  149.944591][  T750]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[  149.944768][  T750]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[  149.944977][  T750] RIP: 0033:0x7facfb1091d7
[  149.945262][  T750] 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)
[  149.945869][  T750] RSP: 002b:00007ffd7b6b8f28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[  149.946246][  T750] RAX: ffffffffffffffda RBX: 00007ffd7b6b9650 RCX: 00007facfb1091d7
[  149.946509][  T750] RDX: 0000000000000000 RSI: 00007ffd7b6b8f90 RDI: 0000000000000005
[  149.946869][  T750] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000078
[  149.947122][  T750] R10: 00007facfb005f60 R11: 0000000000000246 R12: 0000000000000004


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