======================================
| [   39.309154][  T427] ==================================================================
| [   39.309478][  T427] 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)
| [   39.309786][  T427] Write of size 8 at addr 0000000000000000 by task ip/427
| [   39.310025][  T427]
[   39.310133][  T427] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.310139][  T427] Call Trace:
[   39.310141][  T427]  <TASK>
[   39.310143][  T427]  dump_stack_lvl (lib/dump_stack.c:123)
[   39.310154][  T427]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   39.310157][  T427]  kasan_report (mm/kasan/report.c:597)
[   39.310164][  T427]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   39.310170][  T427]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   39.310174][  T427]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   39.310178][  T427]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   39.310182][  T427]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   39.310187][  T427]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   39.310194][  T427]  __cancel_work_sync (kernel/workqueue.c:4383)
[   39.310198][  T427]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   39.310205][  T427]  ? netdev_notify_peers (net/core/dev.c:1891)
[   39.310209][  T427]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   39.310214][  T427]  __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)
[   39.310218][  T427]  ? ww_mutex_lock (kernel/locking/mutex.c:890)
[   39.310228][  T427]  ? netif_set_allmulti (net/core/dev.c:9890)
[   39.310231][  T427]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   39.310238][  T427]  netif_change_flags (net/core/dev.c:9989)
[   39.310243][  T427]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   39.310249][  T427]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   39.310255][  T427]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.310260][  T427]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   39.310265][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.310270][  T427]  ? __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)
[   39.310274][  T427]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   39.310278][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.310282][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.310285][  T427]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   39.310289][  T427]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   39.310293][  T427]  ? __create_object (mm/kmemleak.c:786)
[   39.310297][  T427]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.310300][  T427]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   39.310303][  T427]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   39.310308][  T427]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   39.310318][  T427]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   39.310324][  T427]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   39.310329][  T427]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   39.310333][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.310338][  T427]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.310342][  T427]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   39.310345][  T427]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.310348][  T427]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   39.310352][  T427]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   39.310356][  T427]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   39.310359][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.310365][  T427]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   39.310368][  T427]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   39.310372][  T427]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   39.310379][  T427]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   39.310382][  T427]  ? 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)
[   39.310385][  T427]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   39.310389][  T427]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   39.310393][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.310397][  T427]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   39.310401][  T427]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   39.310405][  T427]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   39.310412][  T427]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   39.310415][  T427]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   39.310419][  T427]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   39.310421][  T427]  ? __copy_msghdr (net/socket.c:2556)
[   39.310429][  T427]  ___sys_sendmsg (net/socket.c:2686)
[   39.310431][  T427]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   39.310435][  T427]  ? __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)
[   39.310439][  T427]  ? copy_msghdr_from_user (net/socket.c:2673)
[   39.310443][  T427]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.310450][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.310455][  T427]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.310458][  T427]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   39.310463][  T427]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.310469][  T427]  __sys_sendmsg (net/socket.c:2716)
[   39.310471][  T427]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   39.310474][  T427]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   39.310481][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.310486][  T427]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   39.310491][  T427]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   39.310495][  T427] RIP: 0033:0x7f78c456d1d7
[   39.310505][  T427] 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)
[   39.310508][  T427] RSP: 002b:00007ffd9af00af8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   39.310512][  T427] RAX: ffffffffffffffda RBX: 00007ffd9af01230 RCX: 00007f78c456d1d7
[   39.310514][  T427] RDX: 0000000000000000 RSI: 00007ffd9af00b60 RDI: 0000000000000005
[   39.310516][  T427] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   39.310518][  T427] R10: 00007f78c4469510 R11: 0000000000000246 R12: 0000000000000003
[   39.310519][  T427] R13: 00000000691cc29f R14: 0000000000499600 R15: 0000000000000000
| [   39.329184][  T427] #PF: error_code(0x0002) - not-present page
| [   39.329410][  T427] PGD 11a0c067 P4D 11a0c067 PUD d9a8067 PMD 0
| [   39.329650][  T427] Oops: Oops: 0002 [#1] SMP KASAN
| [   39.330217][  T427] Tainted: [B]=BAD_PAGE
[   39.330361][  T427] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.330589][  T427] 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)
[   39.330839][  T427] 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
[   39.331489][  T427] RSP: 0018:ffffc90000646f30 EFLAGS: 00010046
[   39.331842][  T427] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffb2a49b8a
[   39.332118][  T427] RDX: fffffbfff6eecacd RSI: 0000000000000008 RDI: ffffffffb7765660
[   39.332431][  T427] RBP: ffffc90000646f98 R08: 0000000000000001 R09: fffffbfff6eecacc
[   39.332834][  T427] R10: ffffffffb7765667 R11: ffffc90000646a00 R12: 0000000000000000
[   39.333106][  T427] R13: 0000000000000286 R14: ffff888002559000 R15: dffffc0000000000
[   39.333493][  T427] FS:  00007f78c439f800(0000) GS:ffff8880b5907000(0000) knlGS:0000000000000000
[   39.333836][  T427] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.334064][  T427] CR2: 0000000000000000 CR3: 000000000e3f1002 CR4: 0000000000772ef0
[   39.334449][  T427] PKRU: 55555554
[   39.334585][  T427] Call Trace:
[   39.334731][  T427]  <TASK>
[   39.334838][  T427]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   39.335029][  T427]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   39.335335][  T427]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   39.335525][  T427]  __cancel_work_sync (kernel/workqueue.c:4383)
[   39.335709][  T427]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   39.335897][  T427]  ? netdev_notify_peers (net/core/dev.c:1891)
[   39.336181][  T427]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   39.336364][  T427]  __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)
[   39.336544][  T427]  ? ww_mutex_lock (kernel/locking/mutex.c:890)
[   39.336724][  T427]  ? netif_set_allmulti (net/core/dev.c:9890)
[   39.337026][  T427]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   39.337208][  T427]  netif_change_flags (net/core/dev.c:9989)
[   39.337398][  T427]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   39.337580][  T427]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   39.337877][  T427]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.338055][  T427]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   39.338243][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.338431][  T427]  ? __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)
[   39.338717][  T427]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   39.338906][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.339087][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.339264][  T427]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   39.339553][  T427]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   39.339739][  T427]  ? __create_object (mm/kmemleak.c:786)
[   39.339932][  T427]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.340114][  T427]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   39.340404][  T427]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   39.340582][  T427]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   39.340781][  T427]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   39.340962][  T427]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   39.341146][  T427]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   39.341325][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.341524][  T427]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.341706][  T427]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   39.341997][  T427]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.342196][  T427]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   39.342386][  T427]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   39.342568][  T427]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   39.342863][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.343048][  T427]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   39.343239][  T427]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   39.343430][  T427]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   39.343720][  T427]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   39.343912][  T427]  ? 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)
[   39.344092][  T427]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   39.344273][  T427]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   39.344561][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.344757][  T427]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   39.344942][  T427]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   39.345124][  T427]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   39.345419][  T427]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   39.345601][  T427]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   39.345797][  T427]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   39.346021][  T427]  ? __copy_msghdr (net/socket.c:2556)
[   39.346203][  T427]  ___sys_sendmsg (net/socket.c:2686)
[   39.346395][  T427]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   39.346579][  T427]  ? __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)
[   39.346919][  T427]  ? copy_msghdr_from_user (net/socket.c:2673)
[   39.347104][  T427]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.347289][  T427]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   39.347481][  T427]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   39.347782][  T427]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   39.347968][  T427]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   39.348152][  T427]  __sys_sendmsg (net/socket.c:2716)
[   39.348333][  T427]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   39.348672][  T427]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   39.348868][  T427]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   39.349050][  T427]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   39.349235][  T427]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   39.349572][  T427] RIP: 0033:0x7f78c456d1d7
[   39.349775][  T427] 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)
[   39.350534][  T427] RSP: 002b:00007ffd9af00af8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   39.350824][  T427] RAX: ffffffffffffffda RBX: 00007ffd9af01230 RCX: 00007f78c456d1d7
[   39.351224][  T427] RDX: 0000000000000000 RSI: 00007ffd9af00b60 RDI: 0000000000000005
[   39.351499][  T427] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   39.351781][  T427] R10: 00007f78c4469510 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