======================================
| [   34.978787][  T340] ==================================================================
| [   34.979208][  T340] 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)
| [   34.979680][  T340] Write of size 8 at addr 0000000000000000 by task ip/340
| [   34.980024][  T340]
[   34.980137][  T340] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.980139][  T340] Call Trace:
[   34.980141][  T340]  <TASK>
[   34.980143][  T340]  dump_stack_lvl (lib/dump_stack.c:123)
[   34.980156][  T340]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   34.980159][  T340]  kasan_report (mm/kasan/report.c:597)
[   34.980167][  T340]  ? try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   34.980172][  T340]  kasan_check_range (mm/kasan/generic.c:194 mm/kasan/generic.c:200)
[   34.980177][  T340]  try_to_grab_pending (./arch/x86/include/asm/bitops.h:136 ./include/asm-generic/bitops/instrumented-atomic.h:72 kernel/workqueue.c:2072)
[   34.980179][  T340]  ? __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)
[   34.980186][  T340]  ? netif_change_flags (net/core/dev.c:9989)
[   34.980191][  T340]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   34.980194][  T340]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   34.980198][  T340]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   34.980203][  T340]  __cancel_work_sync (kernel/workqueue.c:4383)
[   34.980206][  T340]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   34.980210][  T340]  ? netdev_notify_peers (net/core/dev.c:1891)
[   34.980214][  T340]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   34.980223][  T340]  __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)
[   34.980227][  T340]  ? netif_set_allmulti (net/core/dev.c:9890)
[   34.980231][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   34.980240][  T340]  netif_change_flags (net/core/dev.c:9989)
[   34.980245][  T340]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   34.980249][  T340]  cycle_netdev (drivers/net/vrf.c:1052)
[   34.980256][  T340]  vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102)
[   34.980259][  T340]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   34.980265][  T340]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   34.980271][  T340]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   34.980276][  T340]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   34.980284][  T340]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   34.980289][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   34.980294][  T340]  ? __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)
[   34.980298][  T340]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   34.980301][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   34.980306][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   34.980309][  T340]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   34.980312][  T340]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   34.980318][  T340]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   34.980321][  T340]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   34.980325][  T340]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   34.980329][  T340]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   34.980337][  T340]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   34.980342][  T340]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   34.980348][  T340]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   34.980351][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   34.980357][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   34.980360][  T340]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   34.980363][  T340]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   34.980372][  T340]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   34.980375][  T340]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   34.980379][  T340]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   34.980383][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   34.980390][  T340]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   34.980396][  T340]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   34.980400][  T340]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   34.980407][  T340]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   34.980411][  T340]  ? 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)
[   34.980415][  T340]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   34.980420][  T340]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   34.980424][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5601 kernel/locking/lockdep.c:5227)
[   34.980430][  T340]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   34.980435][  T340]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   34.980446][  T340]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   34.980458][  T340]  ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18)
[   34.980464][  T340]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   34.980468][  T340]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   34.980480][  T340]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   34.980486][  T340]  ? __copy_msghdr (net/socket.c:2556)
[   34.980495][  T340]  ___sys_sendmsg (net/socket.c:2686)
[   34.980498][  T340]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   34.980500][  T340]  ? __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)
[   34.980507][  T340]  ? copy_msghdr_from_user (net/socket.c:2673)
[   34.980511][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   34.980515][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   34.980521][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   34.980524][  T340]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   34.980530][  T340]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   34.980536][  T340]  __sys_sendmsg (net/socket.c:2716)
[   34.980539][  T340]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   34.980542][  T340]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   34.980550][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   34.980553][  T340]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   34.980561][  T340]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   34.980564][  T340] RIP: 0033:0x7fad9770f1d7
[   34.980569][  T340] 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)
[   34.980572][  T340] RSP: 002b:00007ffd8d14a3e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   34.980576][  T340] RAX: ffffffffffffffda RBX: 00007ffd8d14ab20 RCX: 00007fad9770f1d7
[   34.980578][  T340] RDX: 0000000000000000 RSI: 00007ffd8d14a450 RDI: 0000000000000005
[   34.980580][  T340] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   34.980581][  T340] R10: 000000000dd27910 R11: 0000000000000246 R12: 0000000000000003
[   34.980583][  T340] R13: 00000000691cd625 R14: 0000000000499600 R15: 0000000000000000
| [   35.008279][  T340] #PF: error_code(0x0002) - not-present page
| [   35.008587][  T340] PGD c7dd067 P4D c7dd067 PUD c8bf067 PMD 0
| [   35.008928][  T340] Oops: Oops: 0002 [#1] SMP KASAN
| [   35.009626][  T340] Tainted: [B]=BAD_PAGE
[   35.009809][  T340] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.010126][  T340] 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)
[   35.010472][  T340] 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 df 81 84 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 df 81 84 00       	call   0x848209
  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
[   35.011302][  T340] RSP: 0018:ffffc900007a6e70 EFLAGS: 00010046
[   35.011630][  T340] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff94240aaa
[   35.012027][  T340] RDX: fffffbfff308fecd RSI: 0000000000000008 RDI: ffffffff9847f660
[   35.012407][  T340] RBP: ffffc900007a6ed8 R08: 0000000000000001 R09: fffffbfff308fecc
[   35.012821][  T340] R10: ffffffff9847f667 R11: ffffc900007a6940 R12: 0000000000000000
[   35.013094][  T340] R13: 0000000000000282 R14: ffff888007ee9000 R15: dffffc0000000000
[   35.013413][  T340] FS:  00007fad97541800(0000) GS:ffff88809de6c000(0000) knlGS:0000000000000000
[   35.013879][  T340] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.014159][  T340] CR2: 0000000000000000 CR3: 00000000097df005 CR4: 0000000000772ef0
[   35.014460][  T340] PKRU: 55555554
[   35.014656][  T340] Call Trace:
[   35.014836][  T340]  <TASK>
[   35.014973][  T340]  ? __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)
[   35.015274][  T340]  ? netif_change_flags (net/core/dev.c:9989)
[   35.015531][  T340]  __cancel_work (kernel/workqueue.c:2161 kernel/workqueue.c:4364)
[   35.015844][  T340]  ? enable_delayed_work (kernel/workqueue.c:4359)
[   35.016097][  T340]  ? queue_delayed_work_on (kernel/workqueue.c:2565 (discriminator 1))
[   35.016432][  T340]  __cancel_work_sync (kernel/workqueue.c:4383)
[   35.016696][  T340]  __dev_close_many (net/core/dev.c:1879 (discriminator 2) net/core/dev.c:1932 (discriminator 2))
[   35.017086][  T340]  ? netdev_notify_peers (net/core/dev.c:1891)
[   35.017447][  T340]  ? __local_bh_enable_ip (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 kernel/softirq.c:455)
[   35.017858][  T340]  __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)
[   35.018090][  T340]  ? netif_set_allmulti (net/core/dev.c:9890)
[   35.018301][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.018508][  T340]  netif_change_flags (net/core/dev.c:9989)
[   35.018935][  T340]  dev_change_flags (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:69)
[   35.019213][  T340]  cycle_netdev (drivers/net/vrf.c:1052)
[   35.019514][  T340]  vrf_add_slave (drivers/net/vrf.c:1083 drivers/net/vrf.c:1102)
[   35.019791][  T340]  do_set_master (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:41 net/core/rtnetlink.c:2964)
[   35.020340][  T340]  do_setlink.constprop.0 (net/core/rtnetlink.c:3165)
[   35.020597][  T340]  ? rtnl_newlink_create (net/core/rtnetlink.c:3036)
[   35.020952][  T340]  ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.021235][  T340]  ? validate_chain (kernel/locking/lockdep.c:3801 kernel/locking/lockdep.c:3821 kernel/locking/lockdep.c:3876)
[   35.021872][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.022208][  T340]  ? __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)
[   35.022503][  T340]  ? __mutex_handoff (kernel/locking/mutex.c:88)
[   35.022734][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   35.023100][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   35.023287][  T340]  ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 21))
[   35.023534][  T340]  ? __mutex_lock (./arch/x86/include/asm/preempt.h:104 kernel/locking/mutex.c:739 kernel/locking/mutex.c:760)
[   35.023816][  T340]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   35.024449][  T340]  ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4071)
[   35.024849][  T340]  ? ww_mutex_lock (kernel/locking/mutex.c:759)
[   35.025121][  T340]  ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21))
[   35.025474][  T340]  ? __rtnl_newlink (net/core/rtnetlink.c:3922)
[   35.025803][  T340]  rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4073)
[   35.026075][  T340]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   35.026339][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.026670][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.027136][  T340]  ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/core/rtnetlink.c:6956)
[   35.027503][  T340]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   35.027778][  T340]  ? __rtnl_newlink (net/core/rtnetlink.c:3963)
[   35.028143][  T340]  rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
[   35.028780][  T340]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   35.029020][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.029270][  T340]  netlink_rcv_skb (net/netlink/af_netlink.c:2550)
[   35.029550][  T340]  ? rtnl_port_fill (net/core/rtnetlink.c:6861)
[   35.029810][  T340]  ? netlink_ack (net/netlink/af_netlink.c:2527)
[   35.030060][  T340]  ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:897 net/netlink/af_netlink.c:340)
[   35.030381][  T340]  ? 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)
[   35.030736][  T340]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
[   35.031273][  T340]  ? netlink_attachskb (net/netlink/af_netlink.c:1329)
[   35.031564][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5601 kernel/locking/lockdep.c:5227)
[   35.031761][  T340]  netlink_sendmsg (net/netlink/af_netlink.c:1894)
[   35.032001][  T340]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   35.032423][  T340]  ? __import_iovec (lib/iov_iter.c:1346 lib/iov_iter.c:1361)
[   35.032745][  T340]  ? _copy_from_user (./arch/x86/include/asm/smap.h:29 ./arch/x86/include/asm/uaccess_64.h:134 ./arch/x86/include/asm/uaccess_64.h:141 ./include/linux/uaccess.h:178 lib/usercopy.c:18)
[   35.033087][  T340]  ? netlink_unicast (net/netlink/af_netlink.c:1813)
[   35.033433][  T340]  ____sys_sendmsg (net/socket.c:727 net/socket.c:742 net/socket.c:2630)
[   35.033880][  T340]  ? get_timestamp.constprop.0 (net/socket.c:2576)
[   35.034259][  T340]  ? __copy_msghdr (net/socket.c:2556)
[   35.034565][  T340]  ___sys_sendmsg (net/socket.c:2686)
[   35.034963][  T340]  ? kasan_record_aux_stack (mm/kasan/generic.c:559)
[   35.035453][  T340]  ? __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)
[   35.035833][  T340]  ? copy_msghdr_from_user (net/socket.c:2673)
[   35.036080][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.036446][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5237)
[   35.036638][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5350)
[   35.036983][  T340]  ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:979 ./include/linux/mmzone.h:2197 arch/x86/mm/physaddr.c:65)
[   35.037220][  T340]  ? __lock_release (kernel/locking/lockdep.c:5536)
[   35.037706][  T340]  __sys_sendmsg (net/socket.c:2716)
[   35.037964][  T340]  ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3148)
[   35.038283][  T340]  ? __sys_sendmsg_sock (net/socket.c:2701)
[   35.038525][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:751)
[   35.038729][  T340]  do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
[   35.038963][  T340]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)
[   35.039260][  T340] RIP: 0033:0x7fad9770f1d7
[   35.039649][  T340] 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)
[   35.040910][  T340] RSP: 002b:00007ffd8d14a3e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.041545][  T340] RAX: ffffffffffffffda RBX: 00007ffd8d14ab20 RCX: 00007fad9770f1d7
[   35.041956][  T340] RDX: 0000000000000000 RSI: 00007ffd8d14a450 RDI: 0000000000000005
[   35.042338][  T340] RBP: 0000000000000003 R08: 0000000000000003 R09: 0000000000000000
[   35.042841][  T340] R10: 000000000dd27910 R11: 0000000000000246 R12: 0000000000000003


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