======================================
| [   24.067091][  T363] ==================================================================
| [   24.067416][  T363] 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)
| [   24.067725][  T363] Write of size 8 at addr 0000000000000000 by task ip/363
| [   24.067989][  T363]
[   24.068097][  T363] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.068100][  T363] Call Trace:
[   24.068102][  T363]  <TASK>
[   24.068104][  T363]  dump_stack_lvl (lib/dump_stack.c:123)
[   24.068113][  T363]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   24.068117][  T363]  kasan_report (mm/kasan/report.c:597)
[   24.068124][  T363]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   24.068129][  T363]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   24.068136][  T363]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   24.068143][  T363]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   24.068147][  T363]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   24.068153][  T363]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   24.068156][  T363]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.068163][  T363]  __cancel_work_sync (kernel/workqueue.c:4383)
[   24.068168][  T363]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   24.068177][  T363]  ? netdev_notify_peers (net/core/dev.c:1891)
[   24.068181][  T363]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   24.068188][  T363]  __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)
[   24.068191][  T363]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   24.068199][  T363]  ? netif_set_allmulti (net/core/dev.c:9890)
[   24.068201][  T363]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.068208][  T363]  netif_change_flags (net/core/dev.c:9989)
[   24.068212][  T363]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   24.068218][  T363]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   24.068223][  T363]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.068231][  T363]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   24.068236][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.068241][  T363]  ? __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)
[   24.068246][  T363]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   24.068249][  T363]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.068254][  T363]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.068257][  T363]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   24.068260][  T363]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   24.068266][  T363]  ? __create_object (mm/kmemleak.c:786)
[   24.068269][  T363]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.068273][  T363]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   24.068276][  T363]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   24.068279][  T363]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   24.068284][  T363]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   24.068290][  T363]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   24.068294][  T363]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   24.068297][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.068303][  T363]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.068307][  T363]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   24.068309][  T363]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.068313][  T363]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   24.068316][  T363]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   24.068320][  T363]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   24.068322][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.068330][  T363]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   24.068335][  T363]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   24.068338][  T363]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   24.068345][  T363]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   24.068347][  T363]  ? 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)
[   24.068351][  T363]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   24.068355][  T363]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   24.068359][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.068365][  T363]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   24.068369][  T363]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   24.068373][  T363]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   24.068378][  T363]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   24.068383][  T363]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   24.068393][  T363]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   24.068397][  T363]  ? __copy_msghdr (net/socket.c:2556)
[   24.068409][  T363]  ___sys_sendmsg (net/socket.c:2686)
[   24.068413][  T363]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   24.068417][  T363]  ? __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)
[   24.068424][  T363]  ? copy_msghdr_from_user (net/socket.c:2673)
[   24.068429][  T363]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.068433][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.068439][  T363]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.068442][  T363]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   24.068448][  T363]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.068455][  T363]  __sys_sendmsg (net/socket.c:2716)
[   24.068458][  T363]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   24.068462][  T363]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   24.068469][  T363]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.068473][  T363]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.068480][  T363]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   24.068484][  T363] RIP: 0033:0x7f9f323301d7
[   24.068489][  T363] 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)
[   24.068492][  T363] RSP: 002b:00007ffcc42790c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.068496][  T363] RAX: ffffffffffffffda RBX: 00007ffcc42797f0 RCX: 00007f9f323301d7
[   24.068498][  T363] RDX: 0000000000000000 RSI: 00007ffcc4279130 RDI: 0000000000000005
[   24.068500][  T363] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   24.068501][  T363] R10: 00007f9f3222cf60 R11: 0000000000000246 R12: 0000000000000003
[   24.068503][  T363] R13: 00000000691cc34f R14: 0000000000499600 R15: 0000000000000000
| [   24.089149][  T363] #PF: error_code(0x0002) - not-present page
| [   24.089492][  T363] PGD f0c6067 P4D f0c6067 PUD ec65067 PMD 0
| [   24.089723][  T363] Oops: Oops: 0002 [#1] SMP KASAN
| [   24.090443][  T363] Tainted: [B]=BAD_PAGE
[   24.090581][  T363] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.090814][  T363] 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)
[   24.091196][  T363] 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
[   24.091859][  T363] RSP: 0018:ffffc900005d6f40 EFLAGS: 00010046
[   24.092109][  T363] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff9224090a
[   24.092389][  T363] RDX: fffffbfff2c8f2cd RSI: 0000000000000008 RDI: ffffffff96479660
[   24.092813][  T363] RBP: ffffc900005d6fa8 R08: 0000000000000001 R09: fffffbfff2c8f2cc
[   24.093096][  T363] R10: ffffffff96479667 R11: ffffc900005d6a00 R12: 0000000000000000
[   24.093376][  T363] R13: 0000000000000282 R14: ffff88800aab4000 R15: dffffc0000000000
[   24.093780][  T363] FS:  00007f9f32162800(0000) GS:ffff88809ff72000(0000) knlGS:0000000000000000
[   24.094131][  T363] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.094389][  T363] CR2: 0000000000000000 CR3: 000000000b8ce001 CR4: 0000000000772ef0
[   24.094784][  T363] PKRU: 55555554
[   24.094948][  T363] Call Trace:
[   24.095089][  T363]  <TASK>
[   24.095195][  T363]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   24.095502][  T363]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   24.095699][  T363]  ? queue_delayed_work_on (kernel/workqueue.c:2590)
[   24.095894][  T363]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472)
[   24.096085][  T363]  __cancel_work_sync (kernel/workqueue.c:4383)
[   24.096388][  T363]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   24.096585][  T363]  ? netdev_notify_peers (net/core/dev.c:1891)
[   24.096779][  T363]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   24.096981][  T363]  __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)
[   24.097276][  T363]  ? __free_zapped_classes (kernel/locking/lockdep.c:5343)
[   24.097475][  T363]  ? netif_set_allmulti (net/core/dev.c:9890)
[   24.097657][  T363]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.097853][  T363]  netif_change_flags (net/core/dev.c:9989)
[   24.098154][  T363]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   24.098340][  T363]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   24.098535][  T363]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.098732][  T363]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   24.098929][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.099128][  T363]  ? __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)
[   24.099329][  T363]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   24.099524][  T363]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.099837][  T363]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.100033][  T363]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   24.100213][  T363]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   24.100409][  T363]  ? __create_object (mm/kmemleak.c:786)
[   24.100703][  T363]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.100895][  T363]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   24.101080][  T363]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   24.101265][  T363]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   24.101573][  T363]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   24.101771][  T363]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   24.101971][  T363]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   24.102156][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.102462][  T363]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.102652][  T363]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   24.102842][  T363]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.103033][  T363]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   24.103320][  T363]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   24.103504][  T363]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   24.103691][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.103892][  T363]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   24.104187][  T363]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   24.104367][  T363]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   24.104549][  T363]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   24.104735][  T363]  ? 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)
[   24.104929][  T363]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   24.105117][  T363]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   24.105301][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.105483][  T363]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   24.105778][  T363]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   24.105978][  T363]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   24.106163][  T363]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   24.106341][  T363]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   24.106629][  T363]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   24.106870][  T363]  ? __copy_msghdr (net/socket.c:2556)
[   24.107068][  T363]  ___sys_sendmsg (net/socket.c:2686)
[   24.107247][  T363]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   24.107530][  T363]  ? __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)
[   24.107772][  T363]  ? copy_msghdr_from_user (net/socket.c:2673)
[   24.107975][  T363]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.108157][  T363]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.108445][  T363]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.108625][  T363]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   24.108830][  T363]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.109024][  T363]  __sys_sendmsg (net/socket.c:2716)
[   24.109310][  T363]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   24.109533][  T363]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   24.109725][  T363]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.109915][  T363]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.110213][  T363]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   24.110440][  T363] RIP: 0033:0x7f9f323301d7
[   24.110638][  T363] 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)
[   24.111411][  T363] RSP: 002b:00007ffcc42790c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.111822][  T363] RAX: ffffffffffffffda RBX: 00007ffcc42797f0 RCX: 00007f9f323301d7
[   24.112106][  T363] RDX: 0000000000000000 RSI: 00007ffcc4279130 RDI: 0000000000000005
[   24.112378][  T363] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   24.112784][  T363] R10: 00007f9f3222cf60 R11: 0000000000000246 R12: 0000000000000003


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