======================================
| [   24.505195][  T329] ==================================================================
| [   24.505570][  T329] 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)
| [   24.505925][  T329] Write of size 8 at addr 0000000000000000 by task ip/329
| [   24.506191][  T329]
[   24.506341][  T329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.506343][  T329] Call Trace:
[   24.506346][  T329]  <TASK>
[   24.506348][  T329]  dump_stack_lvl (lib/dump_stack.c:123)
[   24.506356][  T329]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   24.506360][  T329]  kasan_report (mm/kasan/report.c:597)
[   24.506366][  T329]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   24.506372][  T329]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   24.506375][  T329]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   24.506380][  T329]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   24.506383][  T329]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   24.506387][  T329]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   24.506393][  T329]  __cancel_work_sync (kernel/workqueue.c:4383)
[   24.506397][  T329]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   24.506403][  T329]  ? netdev_notify_peers (net/core/dev.c:1891)
[   24.506408][  T329]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   24.506413][  T329]  __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)
[   24.506417][  T329]  ? netif_set_allmulti (net/core/dev.c:9890)
[   24.506421][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.506428][  T329]  netif_change_flags (net/core/dev.c:9989)
[   24.506432][  T329]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   24.506436][  T329] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   24.506444][  T329] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   24.506449][  T329]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   24.506454][  T329]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   24.506459][  T329]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   24.506464][  T329]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.506470][  T329]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   24.506475][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.506480][  T329]  ? __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)
[   24.506484][  T329]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   24.506487][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.506492][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.506495][  T329]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   24.506498][  T329]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   24.506503][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.506506][  T329]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   24.506510][  T329]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   24.506513][  T329]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   24.506517][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   24.506523][  T329]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   24.506528][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   24.506531][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.506537][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.506540][  T329]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   24.506543][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.506547][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   24.506550][  T329]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   24.506554][  T329]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   24.506556][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.506564][  T329]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   24.506567][  T329]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   24.506571][  T329]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   24.506577][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   24.506580][  T329]  ? 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)
[   24.506584][  T329]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   24.506588][  T329]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   24.506592][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.506597][  T329]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   24.506602][  T329]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   24.506605][  T329]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   24.506610][  T329]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   24.506614][  T329]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   24.506619][  T329]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   24.506622][  T329]  ? __copy_msghdr (net/socket.c:2556)
[   24.506630][  T329]  ___sys_sendmsg (net/socket.c:2686)
[   24.506633][  T329]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   24.506635][  T329]  ? __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)
[   24.506641][  T329]  ? copy_msghdr_from_user (net/socket.c:2673)
[   24.506646][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.506650][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.506656][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.506659][  T329]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   24.506664][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.506670][  T329]  __sys_sendmsg (net/socket.c:2716)
[   24.506673][  T329]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   24.506677][  T329]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   24.506685][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.506688][  T329]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.506694][  T329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   24.506698][  T329] RIP: 0033:0x7fc1bcf2e1d7
[   24.506703][  T329] 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)
[   24.506706][  T329] RSP: 002b:00007ffec6ecc288 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.506709][  T329] RAX: ffffffffffffffda RBX: 00007ffec6ecc9b0 RCX: 00007fc1bcf2e1d7
[   24.506711][  T329] RDX: 0000000000000000 RSI: 00007ffec6ecc2f0 RDI: 0000000000000005
[   24.506713][  T329] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   24.506715][  T329] R10: 000000000f952910 R11: 0000000000000246 R12: 0000000000000004
[   24.506716][  T329] R13: 00000000691cbdef R14: 0000000000499600 R15: 0000000000000000
| [   24.529806][  T329] #PF: error_code(0x0002) - not-present page
| [   24.530050][  T329] PGD ecbf067 P4D ecbf067 PUD ecc0067 PMD 0
| [   24.530327][  T329] Oops: Oops: 0002 [#1] SMP KASAN
| [   24.530940][  T329] Tainted: [B]=BAD_PAGE
[   24.531095][  T329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.531480][  T329] 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)
[   24.531734][  T329] 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
[   24.532587][  T329] RSP: 0018:ffffc900006a6e70 EFLAGS: 00010046
[   24.532845][  T329] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8744090a
[   24.533274][  T329] RDX: fffffbfff16cf2cd RSI: 0000000000000008 RDI: ffffffff8b679660
[   24.533567][  T329] RBP: ffffc900006a6ed8 R08: 0000000000000001 R09: fffffbfff16cf2cc
[   24.533860][  T329] R10: ffffffff8b679667 R11: ffffc900006a6940 R12: 0000000000000000
[   24.534309][  T329] R13: 0000000000000282 R14: ffff888009729000 R15: dffffc0000000000
[   24.534603][  T329] FS:  00007fc1bcd60800(0000) GS:ffff8880aabf2000(0000) knlGS:0000000000000000
[   24.534950][  T329] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.535326][  T329] CR2: 0000000000000000 CR3: 000000000bbc3001 CR4: 0000000000772ef0
[   24.535635][  T329] PKRU: 55555554
[   24.535783][  T329] Call Trace:
[   24.536055][  T329]  <TASK>
[   24.536165][  T329]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   24.536388][  T329]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   24.536589][  T329]  ? qdisc_destroy (net/sched/sch_generic.c:1355)
[   24.536785][  T329]  __cancel_work_sync (kernel/workqueue.c:4383)
[   24.537109][  T329]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   24.537330][  T329]  ? netdev_notify_peers (net/core/dev.c:1891)
[   24.537536][  T329]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   24.537731][  T329]  __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)
[   24.538054][  T329]  ? netif_set_allmulti (net/core/dev.c:9890)
[   24.538267][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.538474][  T329]  netif_change_flags (net/core/dev.c:9989)
[   24.538668][  T329]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   24.538991][  T329] cycle_netdev (drivers/net/vrf.c:1052) vrf
[   24.539195][  T329] vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102) vrf
[   24.539403][  T329]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   24.539602][  T329]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   24.539925][  T329]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   24.540119][  T329]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.540327][  T329]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   24.540524][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.540839][  T329]  ? __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)
[   24.541046][  T329]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   24.541248][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.541467][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.541780][  T329]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   24.541980][  T329]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   24.542177][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.542383][  T329]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   24.542703][  T329]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   24.542903][  T329]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   24.543098][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   24.543305][  T329]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   24.543507][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   24.543701][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.543901][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.544097][  T329]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   24.544429][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.544624][  T329]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   24.544819][  T329]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   24.545022][  T329]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   24.545355][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.545555][  T329]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   24.545751][  T329]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   24.545952][  T329]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   24.546283][  T329]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   24.546478][  T329]  ? 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)
[   24.546674][  T329]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   24.546876][  T329]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   24.547193][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.547402][  T329]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   24.547603][  T329]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   24.547797][  T329]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   24.548125][  T329]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   24.548345][  T329]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   24.548542][  T329]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   24.548784][  T329]  ? __copy_msghdr (net/socket.c:2556)
[   24.549112][  T329]  ___sys_sendmsg (net/socket.c:2686)
[   24.549332][  T329]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   24.549530][  T329]  ? __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)
[   24.549910][  T329]  ? copy_msghdr_from_user (net/socket.c:2673)
[   24.550108][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.550312][  T329]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   24.550509][  T329]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   24.550818][  T329]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   24.551020][  T329]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   24.551217][  T329]  __sys_sendmsg (net/socket.c:2716)
[   24.551427][  T329]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   24.551803][  T329]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   24.552012][  T329]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   24.552209][  T329]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   24.552415][  T329]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   24.552777][  T329] RIP: 0033:0x7fc1bcf2e1d7
[   24.552991][  T329] 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)
[   24.553852][  T329] RSP: 002b:00007ffec6ecc288 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.554159][  T329] RAX: ffffffffffffffda RBX: 00007ffec6ecc9b0 RCX: 00007fc1bcf2e1d7
[   24.554583][  T329] RDX: 0000000000000000 RSI: 00007ffec6ecc2f0 RDI: 0000000000000005
[   24.554894][  T329] RBP: 0000000000000004 R08: 0000000000000003 R09: 0000000000000000
[   24.555183][  T329] R10: 000000000f952910 R11: 0000000000000246 R12: 0000000000000004


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