======================================
| [   70.849612][  T555] ==================================================================
| [   70.849952][  T555] 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)
| [   70.850259][  T555] Write of size 8 at addr 0000000000000000 by task ip/555
| [   70.850482][  T555]
[   70.850606][  T555] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.850610][  T555] Call Trace:
[   70.850613][  T555]  <TASK>
[   70.850617][  T555]  dump_stack_lvl (lib/dump_stack.c:123)
[   70.850637][  T555]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   70.850641][  T555]  kasan_report (mm/kasan/report.c:597)
[   70.850654][  T555]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   70.850659][  T555]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   70.850663][  T555]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   70.850666][  T555]  ? __queue_work (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/workqueue.c:2350)
[   70.850670][  T555]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   70.850673][  T555]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   70.850677][  T555]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   70.850681][  T555]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   70.850689][  T555]  __cancel_work_sync (kernel/workqueue.c:4383)
[   70.850693][  T555]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   70.850708][  T555]  ? netdev_notify_peers (net/core/dev.c:1891)
[   70.850712][  T555]  ? netif_close_many (net/core/dev.c:1959)
[   70.850716][  T555]  netif_close_many (net/core/dev.c:1959)
[   70.850720][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.850729][  T555]  ? __dev_close_many (net/core/dev.c:1949)
[   70.850733][  T555]  ? netif_close_many_and_unlock (net/core/dev.c:12476)
[   70.850739][  T555]  unregister_netdevice_many_notify (net/core/dev.c:12545)
[   70.850743][  T555]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   70.850758][  T555]  ? dev_ingress_queue_create (net/core/dev.c:12499)
[   70.850764][  T555]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   70.850778][  T555]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   70.850783][  T555]  rtnl_dellink (net/core/rtnetlink.c:3530 net/core/rtnetlink.c:3570)
[   70.850791][  T555]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   70.850810][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.850815][  T555]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   70.850821][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.850825][  T555]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   70.850828][  T555]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   70.850834][  T555]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   70.850837][  T555]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   70.850841][  T555]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   70.850844][  T555]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   70.850851][  T555]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   70.850859][  T555]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   70.850863][  T555]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   70.850870][  T555]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   70.850873][  T555]  ? 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)
[   70.850877][  T555]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   70.850881][  T555]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   70.850885][  T555]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   70.850891][  T555]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   70.850895][  T555]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   70.850899][  T555]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   70.850912][  T555]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   70.850916][  T555]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   70.850927][  T555]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   70.850929][  T555]  ? __copy_msghdr (net/socket.c:2556)
[   70.850937][  T555]  ___sys_sendmsg (net/socket.c:2686)
[   70.850940][  T555]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   70.850942][  T555]  ? __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)
[   70.850947][  T555]  ? copy_msghdr_from_user (net/socket.c:2673)
[   70.850952][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.850956][  T555]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   70.850962][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.850965][  T555]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   70.850968][  T555]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   70.850974][  T555]  __sys_sendmsg (net/socket.c:2716)
[   70.850978][  T555]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   70.850982][  T555]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   70.850989][  T555]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   70.850993][  T555]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   70.850999][  T555]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   70.851007][  T555] RIP: 0033:0x7f7424ed11d7
[   70.851013][  T555] 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)
[   70.851018][  T555] RSP: 002b:00007ffdce902e28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   70.851027][  T555] RAX: ffffffffffffffda RBX: 00007ffdce903550 RCX: 00007f7424ed11d7
[   70.851030][  T555] RDX: 0000000000000000 RSI: 00007ffdce902e90 RDI: 0000000000000005
[   70.851031][  T555] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   70.851033][  T555] R10: 00007f7424dcdf60 R11: 0000000000000246 R12: 0000000000000002
[   70.851035][  T555] R13: 00000000691cda48 R14: 0000000000499600 R15: 0000000000000000
| [   70.868987][  T555] #PF: error_code(0x0002) - not-present page
| [   70.869198][  T555] PGD bf6b067 P4D bf6b067 PUD caca067 PMD 0
| [   70.869431][  T555] Oops: Oops: 0002 [#1] SMP KASAN
| [   70.870160][  T555] Tainted: [B]=BAD_PAGE
[   70.870291][  T555] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.870678][  T555] 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)
[   70.870908][  T555] 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
[   70.871793][  T555] RSP: 0018:ffffc90000dcef18 EFLAGS: 00010046
[   70.872110][  T555] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8dc4090a
[   70.872406][  T555] RDX: fffffbfff23cf2cd RSI: 0000000000000008 RDI: ffffffff91e79660
[   70.872791][  T555] RBP: ffffc90000dcef80 R08: 0000000000000001 R09: fffffbfff23cf2cc
[   70.873049][  T555] R10: ffffffff91e79667 R11: ffffc90000dcea00 R12: 0000000000000000
[   70.873410][  T555] R13: 0000000000000286 R14: ffff88800d094000 R15: dffffc0000000000
[   70.873673][  T555] FS:  00007f7424d03800(0000) GS:ffff8880a4572000(0000) knlGS:0000000000000000
[   70.873975][  T555] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   70.874195][  T555] CR2: 0000000000000000 CR3: 000000000955e006 CR4: 0000000000772ef0
[   70.874447][  T555] PKRU: 55555554
[   70.874590][  T555] Call Trace:
[   70.874720][  T555]  <TASK>
[   70.874914][  T555]  ? __queue_work (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/workqueue.c:2350)
[   70.875095][  T555]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   70.875268][  T555]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   70.875436][  T555]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   70.875819][  T555]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   70.876048][  T555]  __cancel_work_sync (kernel/workqueue.c:4383)
[   70.876226][  T555]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   70.876395][  T555]  ? netdev_notify_peers (net/core/dev.c:1891)
[   70.876693][  T555]  ? netif_close_many (net/core/dev.c:1959)
[   70.876864][  T555]  netif_close_many (net/core/dev.c:1959)
[   70.877038][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.877209][  T555]  ? __dev_close_many (net/core/dev.c:1949)
[   70.877477][  T555]  ? netif_close_many_and_unlock (net/core/dev.c:12476)
[   70.877683][  T555]  unregister_netdevice_many_notify (net/core/dev.c:12545)
[   70.877900][  T555]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   70.878080][  T555]  ? dev_ingress_queue_create (net/core/dev.c:12499)
[   70.878347][  T555]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   70.878569][  T555]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   70.878756][  T555]  rtnl_dellink (net/core/rtnetlink.c:3530 net/core/rtnetlink.c:3570)
[   70.879039][  T555]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   70.879315][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.879486][  T555]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   70.879695][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.879974][  T555]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   70.880161][  T555]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   70.880349][  T555]  ? valid_bridge_getlink_req.constprop.0 (net/core/rtnetlink.c:3536)
[   70.880622][  T555]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   70.880913][  T555]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   70.881113][  T555]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   70.881309][  T555]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   70.881477][  T555]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   70.881775][  T555]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   70.881958][  T555]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   70.882204][  T555]  ? 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)
[   70.882373][  T555]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   70.882669][  T555]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   70.882844][  T555]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   70.883016][  T555]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   70.883188][  T555]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   70.883456][  T555]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   70.883711][  T555]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   70.883908][  T555]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   70.884082][  T555]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   70.884401][  T555]  ? __copy_msghdr (net/socket.c:2556)
[   70.884578][  T555]  ___sys_sendmsg (net/socket.c:2686)
[   70.884763][  T555]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   70.885005][  T555]  ? __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)
[   70.885231][  T555]  ? copy_msghdr_from_user (net/socket.c:2673)
[   70.885411][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.885656][  T555]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   70.885949][  T555]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   70.886123][  T555]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   70.886295][  T555]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   70.886501][  T555]  __sys_sendmsg (net/socket.c:2716)
[   70.886820][  T555]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   70.887083][  T555]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   70.887261][  T555]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   70.887474][  T555]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   70.887816][  T555]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   70.888035][  T555] RIP: 0033:0x7f7424ed11d7
[   70.888217][  T555] 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)
[   70.888940][  T555] RSP: 002b:00007ffdce902e28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   70.889208][  T555] RAX: ffffffffffffffda RBX: 00007ffdce903550 RCX: 00007f7424ed11d7
[   70.889576][  T555] RDX: 0000000000000000 RSI: 00007ffdce902e90 RDI: 0000000000000005
[   70.889842][  T555] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   70.890284][  T555] R10: 00007f7424dcdf60 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