======================================
| [   47.391075][  T654] ==================================================================
| [   47.391425][  T654] 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)
| [   47.391742][  T654] Write of size 8 at addr 0000000000000000 by task ip/654
| [   47.391986][  T654]
[   47.392093][  T654] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.392096][  T654] Call Trace:
[   47.392098][  T654]  <TASK>
[   47.392100][  T654]  dump_stack_lvl (lib/dump_stack.c:123)
[   47.392120][  T654]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   47.392123][  T654]  kasan_report (mm/kasan/report.c:597)
[   47.392130][  T654]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   47.392135][  T654]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   47.392139][  T654]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   47.392141][  T654]  ? __queue_work (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/workqueue.c:2350)
[   47.392146][  T654]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   47.392149][  T654]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   47.392153][  T654]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   47.392157][  T654]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.392165][  T654]  __cancel_work_sync (kernel/workqueue.c:4383)
[   47.392169][  T654]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   47.392179][  T654]  ? netdev_notify_peers (net/core/dev.c:1891)
[   47.392185][  T654]  ? netif_close_many (net/core/dev.c:1959)
[   47.392190][  T654]  netif_close_many (net/core/dev.c:1959)
[   47.392193][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.392200][  T654]  ? __dev_close_many (net/core/dev.c:1949)
[   47.392204][  T654]  ? netif_close_many_and_unlock (net/core/dev.c:12476)
[   47.392208][  T654]  unregister_netdevice_many_notify (net/core/dev.c:12545)
[   47.392213][  T654]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   47.392222][  T654]  ? dev_ingress_queue_create (net/core/dev.c:12499)
[   47.392227][  T654]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   47.392237][  T654]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.392242][  T654]  rtnl_dellink (net/core/rtnetlink.c:3530 net/core/rtnetlink.c:3570)
[   47.392247][  T654]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   47.392266][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.392271][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   47.392278][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.392282][  T654]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   47.392285][  T654]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   47.392289][  T654]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   47.392292][  T654]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   47.392296][  T654]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   47.392298][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   47.392306][  T654]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   47.392313][  T654]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   47.392316][  T654]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   47.392323][  T654]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   47.392327][  T654]  ? 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)
[   47.392331][  T654]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   47.392335][  T654]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   47.392339][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   47.392345][  T654]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   47.392349][  T654]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   47.392353][  T654]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   47.392361][  T654]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   47.392364][  T654]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   47.392369][  T654]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   47.392372][  T654]  ? __copy_msghdr (net/socket.c:2556)
[   47.392380][  T654]  ___sys_sendmsg (net/socket.c:2686)
[   47.392383][  T654]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   47.392386][  T654]  ? __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)
[   47.392390][  T654]  ? copy_msghdr_from_user (net/socket.c:2673)
[   47.392395][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.392400][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   47.392405][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.392409][  T654]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   47.392412][  T654]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   47.392418][  T654]  __sys_sendmsg (net/socket.c:2716)
[   47.392421][  T654]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   47.392425][  T654]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   47.392433][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   47.392437][  T654]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.392442][  T654]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   47.392448][  T654] RIP: 0033:0x7f6efbe901d7
[   47.392453][  T654] 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)
[   47.392456][  T654] RSP: 002b:00007ffdb263b668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.392461][  T654] RAX: ffffffffffffffda RBX: 00007ffdb263bd90 RCX: 00007f6efbe901d7
[   47.392463][  T654] RDX: 0000000000000000 RSI: 00007ffdb263b6d0 RDI: 0000000000000005
[   47.392464][  T654] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   47.392466][  T654] R10: 00007f6efbd8cf60 R11: 0000000000000246 R12: 0000000000000002
[   47.392468][  T654] R13: 00000000691cd77c R14: 0000000000499600 R15: 0000000000000000
| [   47.409615][  T654] #PF: error_code(0x0002) - not-present page
| [   47.409848][  T654] PGD a679067 P4D a679067 PUD 57fc067 PMD 0
| [   47.410096][  T654] Oops: Oops: 0002 [#1] SMP KASAN
| [   47.410665][  T654] Tainted: [B]=BAD_PAGE
[   47.410808][  T654] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.411038][  T654] 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)
[   47.411311][  T654] 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
[   47.411961][  T654] RSP: 0018:ffffc90000646f18 EFLAGS: 00010046
[   47.412206][  T654] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa464090a
[   47.412490][  T654] RDX: fffffbfff510f2cd RSI: 0000000000000008 RDI: ffffffffa8879660
[   47.412765][  T654] RBP: ffffc90000646f80 R08: 0000000000000001 R09: fffffbfff510f2cc
[   47.413045][  T654] R10: ffffffffa8879667 R11: ffffc90000646a00 R12: 0000000000000000
[   47.413330][  T654] R13: 0000000000000286 R14: ffff888002abc000 R15: dffffc0000000000
[   47.413608][  T654] FS:  00007f6efbcc2800(0000) GS:ffff88808d9f2000(0000) knlGS:0000000000000000
[   47.413932][  T654] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.414173][  T654] CR2: 0000000000000000 CR3: 000000000a7c2003 CR4: 0000000000772ef0
[   47.414452][  T654] PKRU: 55555554
[   47.414590][  T654] Call Trace:
[   47.414729][  T654]  <TASK>
[   47.414823][  T654]  ? __queue_work (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/workqueue.c:2350)
[   47.415024][  T654]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   47.415221][  T654]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   47.415406][  T654]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   47.415589][  T654]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.415775][  T654]  __cancel_work_sync (kernel/workqueue.c:4383)
[   47.415960][  T654]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   47.416145][  T654]  ? netdev_notify_peers (net/core/dev.c:1891)
[   47.416346][  T654]  ? netif_close_many (net/core/dev.c:1959)
[   47.416530][  T654]  netif_close_many (net/core/dev.c:1959)
[   47.416714][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.416897][  T654]  ? __dev_close_many (net/core/dev.c:1949)
[   47.417081][  T654]  ? netif_close_many_and_unlock (net/core/dev.c:12476)
[   47.417335][  T654]  unregister_netdevice_many_notify (net/core/dev.c:12545)
[   47.417565][  T654]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   47.417755][  T654]  ? dev_ingress_queue_create (net/core/dev.c:12499)
[   47.417938][  T654]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   47.418170][  T654]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   47.418361][  T654]  rtnl_dellink (net/core/rtnetlink.c:3530 net/core/rtnetlink.c:3570)
[   47.418547][  T654]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   47.418787][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.418972][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   47.419162][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.419358][  T654]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   47.419538][  T654]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   47.419737][  T654]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   47.419967][  T654]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   47.420150][  T654]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   47.420349][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   47.420545][  T654]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   47.420731][  T654]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   47.420919][  T654]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   47.421105][  T654]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   47.421288][  T654]  ? 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)
[   47.421480][  T654]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   47.421661][  T654]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   47.421852][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   47.422037][  T654]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   47.422222][  T654]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   47.422414][  T654]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   47.422603][  T654]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   47.422786][  T654]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   47.422973][  T654]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   47.423198][  T654]  ? __copy_msghdr (net/socket.c:2556)
[   47.423418][  T654]  ___sys_sendmsg (net/socket.c:2686)
[   47.423607][  T654]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   47.423812][  T654]  ? __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)
[   47.424045][  T654]  ? copy_msghdr_from_user (net/socket.c:2673)
[   47.424232][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.424430][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   47.424616][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   47.424799][  T654]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   47.424990][  T654]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   47.425175][  T654]  __sys_sendmsg (net/socket.c:2716)
[   47.425357][  T654]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   47.425596][  T654]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   47.425782][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   47.425964][  T654]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   47.426150][  T654]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   47.426385][  T654] RIP: 0033:0x7f6efbe901d7
[   47.426587][  T654] 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)
[   47.427236][  T654] RSP: 002b:00007ffdb263b668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.427525][  T654] RAX: ffffffffffffffda RBX: 00007ffdb263bd90 RCX: 00007f6efbe901d7
[   47.427805][  T654] RDX: 0000000000000000 RSI: 00007ffdb263b6d0 RDI: 0000000000000005
[   47.428077][  T654] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   47.428352][  T654] R10: 00007f6efbd8cf60 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