======================================
| [   17.805594][  T269] ==================================================================
| [   17.805939][  T269] 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)
| [   17.806248][  T269] Write of size 8 at addr 0000000000000000 by task ip/269
| [   17.806538][  T269]
[   17.806647][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.806650][  T269] Call Trace:
[   17.806652][  T269]  <TASK>
[   17.806654][  T269]  dump_stack_lvl (lib/dump_stack.c:123)
[   17.806665][  T269]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   17.806671][  T269]  kasan_report (mm/kasan/report.c:597)
[   17.806679][  T269]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   17.806684][  T269]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   17.806688][  T269]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   17.806691][  T269]  ? page_pool_release (net/core/page_pool.c:1196)
[   17.806699][  T269]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   17.806702][  T269]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   17.806706][  T269]  ? page_pool_release (net/core/page_pool.c:1196)
[   17.806709][  T269]  ? page_pool_destroy (net/core/page_pool.c:1296)
[   17.806715][  T269]  __cancel_work_sync (kernel/workqueue.c:4383)
[   17.806719][  T269]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   17.806725][  T269]  ? netdev_notify_peers (net/core/dev.c:1891)
[   17.806728][  T269]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   17.806735][  T269]  __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)
[   17.806738][  T269]  ? ww_mutex_lock (kernel/locking/mutex.c:890)
[   17.806749][  T269]  ? netif_set_allmulti (net/core/dev.c:9890)
[   17.806752][  T269]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   17.806764][  T269]  netif_change_flags (net/core/dev.c:9989)
[   17.806768][  T269]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   17.806778][  T269]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   17.806788][  T269]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.806794][  T269]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   17.806800][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.806804][  T269]  ? __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)
[   17.806810][  T269]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   17.806813][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   17.806818][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   17.806821][  T269]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   17.806825][  T269]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   17.806829][  T269]  ? __create_object (mm/kmemleak.c:786)
[   17.806835][  T269]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   17.806837][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   17.806841][  T269]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   17.806846][  T269]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   17.806853][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   17.806859][  T269]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   17.806865][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   17.806868][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.806873][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.806878][  T269]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   17.806881][  T269]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   17.806885][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   17.806889][  T269]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   17.806896][  T269]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   17.806900][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.806910][  T269]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   17.806915][  T269]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   17.806919][  T269]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   17.806925][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   17.806928][  T269]  ? 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)
[   17.806931][  T269]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   17.806936][  T269]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   17.806939][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.806944][  T269]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   17.806948][  T269]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   17.806951][  T269]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   17.806957][  T269]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   17.806960][  T269]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   17.806966][  T269]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   17.806971][  T269]  ? __copy_msghdr (net/socket.c:2556)
[   17.806984][  T269]  ___sys_sendmsg (net/socket.c:2686)
[   17.806987][  T269]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   17.806990][  T269]  ? __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)
[   17.806995][  T269]  ? copy_msghdr_from_user (net/socket.c:2673)
[   17.807000][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.807005][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.807010][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.807014][  T269]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   17.807020][  T269]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   17.807026][  T269]  __sys_sendmsg (net/socket.c:2716)
[   17.807028][  T269]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   17.807032][  T269]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   17.807039][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   17.807043][  T269]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.807051][  T269]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   17.807055][  T269] RIP: 0033:0x7f956fdd71d7
[   17.807060][  T269] 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)
[   17.807063][  T269] RSP: 002b:00007ffefb8d64e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   17.807068][  T269] RAX: ffffffffffffffda RBX: 00007ffefb8d6c10 RCX: 00007f956fdd71d7
[   17.807070][  T269] RDX: 0000000000000000 RSI: 00007ffefb8d6550 RDI: 0000000000000003
[   17.807072][  T269] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   17.807074][  T269] R10: 00007f956fcd3f60 R11: 0000000000000246 R12: 0000000000000003
[   17.807076][  T269] R13: 00000000691cd686 R14: 0000000000499600 R15: 0000000000000000
| [   17.826647][  T269] #PF: error_code(0x0002) - not-present page
| [   17.826885][  T269] PGD f7eb067 P4D f7eb067 PUD f7f9067 PMD 0
| [   17.827132][  T269] Oops: Oops: 0002 [#1] SMP KASAN
| [   17.827699][  T269] Tainted: [B]=BAD_PAGE
[   17.827849][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.828119][  T269] 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)
[   17.828398][  T269] 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
[   17.829086][  T269] RSP: 0018:ffffc90000576f30 EFLAGS: 00010046
[   17.829328][  T269] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8b649b8a
[   17.829629][  T269] RDX: fffffbfff206cacd RSI: 0000000000000008 RDI: ffffffff90365660
[   17.829924][  T269] RBP: ffffc90000576f98 R08: 0000000000000001 R09: fffffbfff206cacc
[   17.830226][  T269] R10: ffffffff90365667 R11: ffffc90000576a00 R12: 0000000000000000
[   17.830519][  T269] R13: 0000000000000286 R14: ffff888005ab2000 R15: dffffc0000000000
[   17.830800][  T269] FS:  00007f956fc09800(0000) GS:ffff8880d6587000(0000) knlGS:0000000000000000
[   17.831133][  T269] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.831369][  T269] CR2: 0000000000000000 CR3: 0000000010f48001 CR4: 0000000000772ef0
[   17.831652][  T269] PKRU: 55555554
[   17.831803][  T269] Call Trace:
[   17.831945][  T269]  <TASK>
[   17.832043][  T269]  ? page_pool_release (net/core/page_pool.c:1196)
[   17.832247][  T269]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   17.832447][  T269]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   17.832638][  T269]  ? page_pool_release (net/core/page_pool.c:1196)
[   17.832826][  T269]  ? page_pool_destroy (net/core/page_pool.c:1296)
[   17.833017][  T269]  __cancel_work_sync (kernel/workqueue.c:4383)
[   17.833201][  T269]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   17.833396][  T269]  ? netdev_notify_peers (net/core/dev.c:1891)
[   17.833600][  T269]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   17.833795][  T269]  __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)
[   17.833989][  T269]  ? ww_mutex_lock (kernel/locking/mutex.c:890)
[   17.834179][  T269]  ? netif_set_allmulti (net/core/dev.c:9890)
[   17.834366][  T269]  ? is_bpf_text_address (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 kernel/bpf/core.c:746)
[   17.834576][  T269]  netif_change_flags (net/core/dev.c:9989)
[   17.834802][  T269]  do_setlink.constprop.0 (net/core/rtnetlink.c:3158)
[   17.835008][  T269]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   17.835199][  T269]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   17.835404][  T269]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   17.835602][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.835799][  T269]  ? __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)
[   17.835995][  T269]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   17.836185][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   17.836384][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   17.836613][  T269]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   17.836801][  T269]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   17.836993][  T269]  ? __create_object (mm/kmemleak.c:786)
[   17.837178][  T269]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   17.837365][  T269]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   17.837559][  T269]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   17.837736][  T269]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   17.837941][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   17.838130][  T269]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   17.838329][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   17.838527][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.838703][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.838909][  T269]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   17.839094][  T269]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   17.839279][  T269]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   17.839479][  T269]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   17.839658][  T269]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   17.839844][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.840034][  T269]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   17.840223][  T269]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   17.840418][  T269]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   17.840609][  T269]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   17.840796][  T269]  ? 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)
[   17.840991][  T269]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   17.841178][  T269]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   17.841367][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.841560][  T269]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   17.841735][  T269]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   17.841935][  T269]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   17.842120][  T269]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   17.842308][  T269]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   17.842516][  T269]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   17.842735][  T269]  ? __copy_msghdr (net/socket.c:2556)
[   17.842938][  T269]  ___sys_sendmsg (net/socket.c:2686)
[   17.843128][  T269]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   17.843319][  T269]  ? __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)
[   17.843566][  T269]  ? copy_msghdr_from_user (net/socket.c:2673)
[   17.843765][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.843971][  T269]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   17.844163][  T269]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   17.844353][  T269]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   17.844554][  T269]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   17.844730][  T269]  __sys_sendmsg (net/socket.c:2716)
[   17.844949][  T269]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   17.845181][  T269]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   17.845378][  T269]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   17.845575][  T269]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   17.845761][  T269]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   17.846000][  T269] RIP: 0033:0x7f956fdd71d7
[   17.846210][  T269] 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)
[   17.846884][  T269] RSP: 002b:00007ffefb8d64e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   17.847172][  T269] RAX: ffffffffffffffda RBX: 00007ffefb8d6c10 RCX: 00007f956fdd71d7
[   17.847469][  T269] RDX: 0000000000000000 RSI: 00007ffefb8d6550 RDI: 0000000000000003
[   17.847736][  T269] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000078
[   17.848148][  T269] R10: 00007f956fcd3f60 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