======================================
| [   18.688079][  T288] ==================================================================
| [   18.688547][  T288] 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)
| [   18.688963][  T288] Write of size 8 at addr 0000000000000000 by task ip/288
| [   18.689289][  T288]
[   18.689438][  T288] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.689441][  T288] Call Trace:
[   18.689444][  T288]  <TASK>
[   18.689446][  T288]  dump_stack_lvl (lib/dump_stack.c:123)
[   18.689458][  T288]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   18.689462][  T288]  kasan_report (mm/kasan/report.c:597)
[   18.689473][  T288]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   18.689482][  T288]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   18.689488][  T288]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   18.689495][  T288]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   18.689500][  T288]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   18.689506][  T288]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   18.689512][  T288]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.689523][  T288]  __cancel_work_sync (kernel/workqueue.c:4383)
[   18.689530][  T288]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   18.689538][  T288]  ? netdev_notify_peers (net/core/dev.c:1891)
[   18.689545][  T288]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   18.689553][  T288]  __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)
[   18.689560][  T288]  ? netif_set_allmulti (net/core/dev.c:9890)
[   18.689564][  T288]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   18.689576][  T288]  netif_change_flags (net/core/dev.c:9989)
[   18.689580][  T288]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[   18.689586][  T288]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   18.689597][  T288]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   18.689606][  T288]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.689613][  T288]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   18.689622][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.689629][  T288]  ? __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)
[   18.689637][  T288]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   18.689642][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   18.689648][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   18.689653][  T288]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   18.689658][  T288]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   18.689666][  T288]  ? __create_object (mm/kmemleak.c:786)
[   18.689674][  T288]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   18.689677][  T288]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   18.689683][  T288]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   18.689689][  T288]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   18.689699][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   18.689709][  T288]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   18.689717][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   18.689722][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.689730][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.689736][  T288]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   18.689740][  T288]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   18.689746][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   18.689751][  T288]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   18.689758][  T288]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   18.689762][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.689773][  T288]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   18.689779][  T288]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   18.689785][  T288]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   18.689796][  T288]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   18.689800][  T288]  ? 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)
[   18.689806][  T288]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   18.689812][  T288]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   18.689818][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.689825][  T288]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   18.689832][  T288]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   18.689837][  T288]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   18.689845][  T288]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   18.689850][  T288]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   18.689856][  T288]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   18.689860][  T288]  ? __copy_msghdr (net/socket.c:2556)
[   18.689871][  T288]  ___sys_sendmsg (net/socket.c:2686)
[   18.689875][  T288]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   18.689879][  T288]  ? __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)
[   18.689886][  T288]  ? copy_msghdr_from_user (net/socket.c:2673)
[   18.689893][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.689901][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.689909][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.689914][  T288]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   18.689922][  T288]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   18.689931][  T288]  __sys_sendmsg (net/socket.c:2716)
[   18.689935][  T288]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   18.689940][  T288]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   18.689952][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   18.689958][  T288]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.689967][  T288]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   18.689973][  T288] RIP: 0033:0x7f2d8df421d7
[   18.689978][  T288] 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)
[   18.689983][  T288] RSP: 002b:00007fff93fb8938 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.689989][  T288] RAX: ffffffffffffffda RBX: 00007fff93fb9060 RCX: 00007f2d8df421d7
[   18.689992][  T288] RDX: 0000000000000000 RSI: 00007fff93fb89a0 RDI: 0000000000000005
[   18.689995][  T288] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   18.689997][  T288] R10: 00007f2d8de3ef60 R11: 0000000000000246 R12: 0000000000000002
[   18.690000][  T288] R13: 00000000691cd0b0 R14: 0000000000499600 R15: 0000000000000000
| [   18.717659][  T288] #PF: error_code(0x0002) - not-present page
| [   18.717965][  T288] PGD e230067 P4D e230067 PUD 4a87067 PMD 0
| [   18.718449][  T288] Oops: Oops: 0002 [#1] SMP KASAN
| [   18.719209][  T288] Tainted: [B]=BAD_PAGE
[   18.719408][  T288] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.719718][  T288] 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)
[   18.720051][  T288] 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 1f 93 82 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 1f 93 82 00       	call   0x829349
  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
[   18.721131][  T288] RSP: 0018:ffffc90000d06f30 EFLAGS: 00010046
[   18.721449][  T288] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa6249b8a
[   18.722006][  T288] RDX: fffffbfff55ecacd RSI: 0000000000000008 RDI: ffffffffaaf65660
[   18.722392][  T288] RBP: ffffc90000d06f98 R08: 0000000000000001 R09: fffffbfff55ecacc
[   18.722943][  T288] R10: ffffffffaaf65667 R11: ffffc90000d06a00 R12: 0000000000000000
[   18.723329][  T288] R13: 0000000000000286 R14: ffff888008bb1000 R15: dffffc0000000000
[   18.723710][  T288] FS:  00007f2d8dd74800(0000) GS:ffff8880bbb07000(0000) knlGS:0000000000000000
[   18.724333][  T288] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.724647][  T288] CR2: 0000000000000000 CR3: 0000000004a86006 CR4: 0000000000772ef0
[   18.725034][  T288] PKRU: 55555554
[   18.725389][  T288] Call Trace:
[   18.725574][  T288]  <TASK>
[   18.725705][  T288]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   18.725957][  T288]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   18.726209][  T288]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   18.726456][  T288]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   18.726705][  T288]  __cancel_work_sync (kernel/workqueue.c:4383)
[   18.726959][  T288]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   18.727211][  T288]  ? netdev_notify_peers (net/core/dev.c:1891)
[   18.727456][  T288]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   18.727702][  T288]  __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)
[   18.727953][  T288]  ? netif_set_allmulti (net/core/dev.c:9890)
[   18.728202][  T288]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   18.728453][  T288]  netif_change_flags (net/core/dev.c:9989)
[   18.728701][  T288]  ? kernel_text_address (kernel/extable.c:97 kernel/extable.c:94)
[   18.728946][  T288]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   18.729200][  T288]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   18.729455][  T288]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   18.729702][  T288]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   18.729950][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.730197][  T288]  ? __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)
[   18.730456][  T288]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   18.730702][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   18.730950][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   18.731201][  T288]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   18.731456][  T288]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   18.731708][  T288]  ? __create_object (mm/kmemleak.c:786)
[   18.731955][  T288]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   18.732200][  T288]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   18.732464][  T288]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   18.732713][  T288]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   18.732965][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   18.733215][  T288]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   18.733469][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   18.733717][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.733967][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.734220][  T288]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   18.734407][  T288]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   18.734580][  T288]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   18.734751][  T288]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   18.734924][  T288]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   18.735197][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.735375][  T288]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   18.735544][  T288]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   18.735714][  T288]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   18.735992][  T288]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   18.736163][  T288]  ? 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)
[   18.736332][  T288]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   18.736508][  T288]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   18.736781][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.736951][  T288]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   18.737122][  T288]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   18.737297][  T288]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   18.737574][  T288]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   18.737746][  T288]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   18.737913][  T288]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   18.738225][  T288]  ? __copy_msghdr (net/socket.c:2556)
[   18.738404][  T288]  ___sys_sendmsg (net/socket.c:2686)
[   18.738575][  T288]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   18.738747][  T288]  ? __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)
[   18.739067][  T288]  ? copy_msghdr_from_user (net/socket.c:2673)
[   18.739236][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.739410][  T288]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   18.739586][  T288]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   18.739862][  T288]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   18.740032][  T288]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   18.740201][  T288]  __sys_sendmsg (net/socket.c:2716)
[   18.740381][  T288]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   18.740707][  T288]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   18.740882][  T288]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   18.741053][  T288]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   18.741227][  T288]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   18.741550][  T288] RIP: 0033:0x7f2d8df421d7
[   18.741731][  T288] 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)
[   18.742463][  T288] RSP: 002b:00007fff93fb8938 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.742730][  T288] RAX: ffffffffffffffda RBX: 00007fff93fb9060 RCX: 00007f2d8df421d7
[   18.743091][  T288] RDX: 0000000000000000 RSI: 00007fff93fb89a0 RDI: 0000000000000005
[   18.743355][  T288] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   18.743615][  T288] R10: 00007f2d8de3ef60 R11: 0000000000000246 R12: 0000000000000002


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