======================================
| [   32.406318][  T376] ==================================================================
| [   32.406812][  T376] 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)
| [   32.407246][  T376] Write of size 8 at addr 0000000000000000 by task ip/376
| [   32.407586][  T376]
[   32.407752][  T376] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.407755][  T376] Call Trace:
[   32.407763][  T376]  <TASK>
[   32.407766][  T376]  dump_stack_lvl (lib/dump_stack.c:123)
[   32.407783][  T376]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   32.407787][  T376]  kasan_report (mm/kasan/report.c:597)
[   32.407798][  T376]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   32.407806][  T376]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   32.407812][  T376]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   32.407816][  T376]  ? __queue_work (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/workqueue.c:2350)
[   32.407823][  T376]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   32.407827][  T376]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   32.407833][  T376]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   32.407838][  T376]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.407847][  T376]  __cancel_work_sync (kernel/workqueue.c:4383)
[   32.407853][  T376]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   32.407863][  T376]  ? netdev_notify_peers (net/core/dev.c:1891)
[   32.407869][  T376]  ? netif_close_many (net/core/dev.c:1959)
[   32.407876][  T376]  netif_close_many (net/core/dev.c:1959)
[   32.407881][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.407892][  T376]  ? __dev_close_many (net/core/dev.c:1949)
[   32.407898][  T376]  ? netif_close_many_and_unlock (net/core/dev.c:12476)
[   32.407905][  T376]  unregister_netdevice_many_notify (net/core/dev.c:12545)
[   32.407912][  T376]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   32.407924][  T376]  ? dev_ingress_queue_create (net/core/dev.c:12499)
[   32.407931][  T376]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   32.407943][  T376]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.407950][  T376]  rtnl_dellink (net/core/rtnetlink.c:3530 net/core/rtnetlink.c:3570)
[   32.407958][  T376]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   32.407991][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.407999][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.408008][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.408013][  T376]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   32.408017][  T376]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   32.408027][  T376]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   32.408032][  T376]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   32.408038][  T376]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   32.408043][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.408054][  T376]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   32.408061][  T376]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   32.408067][  T376]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   32.408078][  T376]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   32.408082][  T376]  ? 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)
[   32.408088][  T376]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   32.408095][  T376]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   32.408101][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.408110][  T376]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   32.408117][  T376]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   32.408122][  T376]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   32.408139][  T376]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   32.408145][  T376]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   32.408152][  T376]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   32.408157][  T376]  ? __copy_msghdr (net/socket.c:2556)
[   32.408169][  T376]  ___sys_sendmsg (net/socket.c:2686)
[   32.408173][  T376]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   32.408177][  T376]  ? __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)
[   32.408183][  T376]  ? copy_msghdr_from_user (net/socket.c:2673)
[   32.408191][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.408197][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.408206][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.408211][  T376]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   32.408216][  T376]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   32.408226][  T376]  __sys_sendmsg (net/socket.c:2716)
[   32.408230][  T376]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   32.408235][  T376]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   32.408247][  T376]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   32.408254][  T376]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.408261][  T376]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   32.408266][  T376] RIP: 0033:0x7f40fcd221d7
[   32.408275][  T376] 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)
[   32.408279][  T376] RSP: 002b:00007ffc1a92ff18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.408287][  T376] RAX: ffffffffffffffda RBX: 00007ffc1a930640 RCX: 00007f40fcd221d7
[   32.408290][  T376] RDX: 0000000000000000 RSI: 00007ffc1a92ff80 RDI: 0000000000000005
[   32.408292][  T376] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   32.408295][  T376] R10: 00007f40fcc1ef60 R11: 0000000000000246 R12: 0000000000000002
[   32.408297][  T376] R13: 00000000691ccc9e R14: 0000000000499600 R15: 0000000000000000
| [   32.428910][  T376] #PF: error_code(0x0002) - not-present page
| [   32.429126][  T376] PGD acea067 P4D acea067 PUD 99d4067 PMD 0
| [   32.429480][  T376] Oops: Oops: 0002 [#1] SMP KASAN
| [   32.430019][  T376] Tainted: [B]=BAD_PAGE
[   32.430158][  T376] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.430525][  T376] 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)
[   32.430754][  T376] 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
[   32.431496][  T376] RSP: 0018:ffffc90000786f18 EFLAGS: 00010046
[   32.431725][  T376] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffb1a4090a
[   32.432091][  T376] RDX: fffffbfff6b8f2cd RSI: 0000000000000008 RDI: ffffffffb5c79660
[   32.432382][  T376] RBP: ffffc90000786f80 R08: 0000000000000001 R09: fffffbfff6b8f2cc
[   32.432637][  T376] R10: ffffffffb5c79667 R11: ffffc90000786a00 R12: 0000000000000000
[   32.432909][  T376] R13: 0000000000000286 R14: ffff8880086e1000 R15: dffffc0000000000
[   32.433213][  T376] FS:  00007f40fcb54800(0000) GS:ffff888080672000(0000) knlGS:0000000000000000
[   32.433661][  T376] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.433881][  T376] CR2: 0000000000000000 CR3: 0000000004faa005 CR4: 0000000000772ef0
[   32.434138][  T376] PKRU: 55555554
[   32.434294][  T376] Call Trace:
[   32.434540][  T376]  <TASK>
[   32.434630][  T376]  ? __queue_work (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/workqueue.c:2350)
[   32.434819][  T376]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   32.434992][  T376]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   32.435281][  T376]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   32.435460][  T376]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.435632][  T376]  __cancel_work_sync (kernel/workqueue.c:4383)
[   32.435812][  T376]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   32.436086][  T376]  ? netdev_notify_peers (net/core/dev.c:1891)
[   32.436269][  T376]  ? netif_close_many (net/core/dev.c:1959)
[   32.436453][  T376]  netif_close_many (net/core/dev.c:1959)
[   32.436621][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.436891][  T376]  ? __dev_close_many (net/core/dev.c:1949)
[   32.437057][  T376]  ? netif_close_many_and_unlock (net/core/dev.c:12476)
[   32.437284][  T376]  unregister_netdevice_many_notify (net/core/dev.c:12545)
[   32.437507][  T376]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   32.437783][  T376]  ? dev_ingress_queue_create (net/core/dev.c:12499)
[   32.437951][  T376]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   32.438164][  T376]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   32.438360][  T376]  rtnl_dellink (net/core/rtnetlink.c:3530 net/core/rtnetlink.c:3570)
[   32.438632][  T376]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   32.438864][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.439032][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.439324][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.439500][  T376]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   32.439668][  T376]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   32.439837][  T376]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   32.440147][  T376]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   32.440348][  T376]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   32.440522][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.440694][  T376]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   32.440965][  T376]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   32.441133][  T376]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   32.441322][  T376]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   32.441501][  T376]  ? 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)
[   32.441772][  T376]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   32.441950][  T376]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   32.442116][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.442300][  T376]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   32.442581][  T376]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   32.442756][  T376]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   32.442931][  T376]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   32.443098][  T376]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   32.443396][  T376]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   32.443613][  T376]  ? __copy_msghdr (net/socket.c:2556)
[   32.443785][  T376]  ___sys_sendmsg (net/socket.c:2686)
[   32.443953][  T376]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   32.444234][  T376]  ? __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)
[   32.444464][  T376]  ? copy_msghdr_from_user (net/socket.c:2673)
[   32.444632][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.444802][  T376]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   32.445077][  T376]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   32.445263][  T376]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   32.445447][  T376]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   32.445622][  T376]  __sys_sendmsg (net/socket.c:2716)
[   32.445893][  T376]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   32.446105][  T376]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   32.446292][  T376]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   32.446577][  T376]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   32.446747][  T376]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   32.446959][  T376] RIP: 0033:0x7f40fcd221d7
[   32.447141][  T376] 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)
[   32.447870][  T376] RSP: 002b:00007ffc1a92ff18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.448250][  T376] RAX: ffffffffffffffda RBX: 00007ffc1a930640 RCX: 00007f40fcd221d7
[   32.448525][  T376] RDX: 0000000000000000 RSI: 00007ffc1a92ff80 RDI: 0000000000000005
[   32.448785][  T376] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   32.449146][  T376] R10: 00007f40fcc1ef60 R11: 0000000000000246 R12: 0000000000000002


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