Bluetooth: hci11 command 0x041b tx timeout
Bluetooth: hci10 command 0x040f tx timeout
Bluetooth: hci11 command 0x040f tx timeout
Bluetooth: hci10 command 0x0419 tx timeout
Bluetooth: hci11 command 0x0419 tx timeout
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 239s!
INFO: task kworker/1:0:18 blocked for more than 140 seconds.
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
      Not tainted 4.14.305-syzkaller #0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
    in-flight: 18:key_garbage_collector
kworker/1:0     D
  pwq 0:
27216    18      2 0x80000000
 cpus=0
Workqueue: events key_garbage_collector
 node=0 flags=0x0 nice=0 active=24/256 refcnt=25
    in-flight: 3:rtc_timer_do_work
    pending: wait_rcu_exp_gp, vmstat_shepherd
, cache_reap, macvlan_process_broadcast
Call Trace:
, macvlan_process_broadcast, defense_work_handler, defense_work_handler
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
, defense_work_handler
, defense_work_handler, defense_work_handler, defense_work_handler, macvlan_process_broadcast, macvlan_process_broadcast, macvlan_process_broadcast, macvlan_process_broadcast, rht_deferred_worker, free_obj_work
, hci_cmd_timeout, hci_cmd_timeout
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
, l2cap_info_timeout
 exp_funnel_lock kernel/rcu/tree_exp.h:295 [inline]
 _synchronize_rcu_expedited+0x5f6/0x770 kernel/rcu/tree_exp.h:596
, l2cap_info_timeout
, rfkill_any_led_trigger_worker, bpf_prog_free_deferred
workqueue events_long: flags=0x0
  pwq 0:
 cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: gc_worker
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=4/512 refcnt=7
    in-flight: 742:fsnotify_mark_destroy_workfn fsnotify_mark_destroy_workfn, 8932:fsnotify_connector_destroy_workfn fsnotify_connector_destroy_workfn
workqueue events_power_efficient: flags=0x80
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5
    pending: process_srcu, do_cache_clean, fb_flashcursor, neigh_periodic_work
workqueue mm_percpu_wq: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
workqueue netns: flags=0xe000a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/1 refcnt=4
    in-flight: 9245:cleanup_net
workqueue dm_bufio_cache: flags=0x8
  pwq 0: cpus=0 node=0
 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue ipv6_addrconf: flags=0x40008
 synchronize_rcu+0x98/0x130 kernel/rcu/tree_plugin.h:762
  pwq 2:
 cpus=1
 node=0
 flags=0x0 nice=0
 active=1/1 refcnt=2
    in-flight: 3625:addrconf_verify_work
pool 0:
 cpus=0
 key_garbage_collector+0x2af/0x7c0 security/keys/gc.c:292
 node=0
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
 flags=0x0 nice=0 hung=239s workers=5 idle: 7998 4315 9180 24
pool 2:
 cpus=1 node=0 flags=0x0 nice=0 hung=0s workers=5 idle: 9153 23 8607
pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=7 idle: 34 2904 22 5
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406
INFO: task kworker/u4:3:742 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:3    D26880   742      2 0x80000000
Workqueue: events_unbound fsnotify_mark_destroy_workfn
Call Trace:
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
 schedule_timeout+0x80a/0xe90 kernel/time/timer.c:1724
 do_wait_for_common kernel/sched/completion.c:91 [inline]
 __wait_for_common kernel/sched/completion.c:112 [inline]
 wait_for_common+0x272/0x430 kernel/sched/completion.c:123
 __synchronize_srcu+0x10a/0x1d0 kernel/rcu/srcutree.c:898
 fsnotify_mark_destroy_workfn+0xed/0x2e0 fs/notify/mark.c:757
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406
INFO: task syz-executor.1:7983 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1  D25336  7983      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
 exp_funnel_lock kernel/rcu/tree_exp.h:295 [inline]
 _synchronize_rcu_expedited+0x5f6/0x770 kernel/rcu/tree_exp.h:596
 synchronize_rcu+0x98/0x130 kernel/rcu/tree_plugin.h:762
 namespace_unlock fs/namespace.c:1448 [inline]
 do_umount fs/namespace.c:1650 [inline]
 SYSC_umount fs/namespace.c:1754 [inline]
 SyS_umount+0x791/0xeb0 fs/namespace.c:1723
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f4edbf14567
RSP: 002b:00007ffd3e75fd08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4edbf14567
RDX: 00007ffd3e75fdda RSI: 000000000000000a RDI: 00007ffd3e75fdd0
RBP: 00007ffd3e75fdd0 R08: 00000000ffffffff R09: 00007ffd3e75fba0
R10: 0000555556f07903 R11: 0000000000000246 R12: 00007f4edbf6db24
R13: 00007ffd3e760e90 R14: 0000555556f07810 R15: 00007ffd3e760ed0
INFO: task syz-executor.2:7990 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2  D25632  7990      1 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3488
 __mutex_lock_common kernel/locking/mutex.c:833 [inline]
 __mutex_lock+0x669/0x1310 kernel/locking/mutex.c:893
 exp_funnel_lock kernel/rcu/tree_exp.h:305 [inline]
 _synchronize_rcu_expedited+0x32d/0x770 kernel/rcu/tree_exp.h:596
 synchronize_rcu+0x98/0x130 kernel/rcu/tree_plugin.h:762
 namespace_unlock fs/namespace.c:1448 [inline]
 do_umount fs/namespace.c:1650 [inline]
 SYSC_umount fs/namespace.c:1754 [inline]
 SyS_umount+0x791/0xeb0 fs/namespace.c:1723
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fb3761f2567
RSP: 002b:00007ffe307528a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb3761f2567
RDX: 00007ffe3075297a RSI: 000000000000000a RDI: 00007ffe30752970
RBP: 00007ffe30752970 R08: 00000000ffffffff R09: 00007ffe30752740
R10: 0000555556acf903 R11: 0000000000000246 R12: 00007fb37624bb24
R13: 00007ffe30753a30 R14: 0000555556acf810 R15: 00007ffe30753a70
INFO: task kworker/u4:5:8932 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:5    D28992  8932      2 0x80000000
Workqueue: events_unbound fsnotify_connector_destroy_workfn
Call Trace:
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
 schedule_timeout+0x80a/0xe90 kernel/time/timer.c:1724
 do_wait_for_common kernel/sched/completion.c:91 [inline]
 __wait_for_common kernel/sched/completion.c:112 [inline]
 wait_for_common+0x272/0x430 kernel/sched/completion.c:123
 __synchronize_srcu+0x10a/0x1d0 kernel/rcu/srcutree.c:898
 fsnotify_connector_destroy_workfn+0x49/0xa0 fs/notify/mark.c:156
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406
INFO: task kworker/u4:6:9245 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:6    D27904  9245      2 0x80000000
Workqueue: netns cleanup_net
Call Trace:
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3488
 __mutex_lock_common kernel/locking/mutex.c:833 [inline]
 __mutex_lock+0x669/0x1310 kernel/locking/mutex.c:893
 netdev_wait_allrefs net/core/dev.c:7853 [inline]
 netdev_run_todo+0x79d/0xad0 net/core/dev.c:7947
 ip6gre_exit_net+0x423/0x570 net/ipv6/ip6_gre.c:1212
 ops_exit_list+0xad/0x160 net/core/net_namespace.c:142
 cleanup_net+0x3b3/0x840 net/core/net_namespace.c:487
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406
INFO: task syz-executor.4:10551 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4  D28912 10551   8012 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
 _synchronize_rcu_expedited+0x522/0x770 kernel/rcu/tree_exp.h:615
 synchronize_rcu+0x98/0x130 kernel/rcu/tree_plugin.h:762
 pfkey_release+0x20e/0x2b0 net/key/af_key.c:193
 __sock_release+0xcd/0x2b0 net/socket.c:602
 sock_close+0x15/0x20 net/socket.c:1139
 __fput+0x25f/0x7a0 fs/file_table.c:210
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f344133ffab
RSP: 002b:00007ffce9cc2fa0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f344133ffab
RDX: 00007f3440f02108 RSI: ffffffffffffffff RDI: 0000000000000003
RBP: 00007f34414af980 R08: 0000000000000000 R09: 00007f3440f02000
R10: 00007f3440f02110 R11: 0000000000000293 R12: 000000000002e1ad
R13: 00007ffce9cc30a0 R14: 00007f34414adf80 R15: 0000000000000032
INFO: task syz-executor.0:10584 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D27192 10584   7982 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3488
 __mutex_lock_common kernel/locking/mutex.c:833 [inline]
 __mutex_lock+0x669/0x1310 kernel/locking/mutex.c:893
 rtnl_lock net/core/rtnetlink.c:72 [inline]
 rtnl_newlink+0x7e1/0x1830 net/core/rtnetlink.c:2682
 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4322
 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2461
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0x651/0xbc0 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062
 __sys_sendmsg+0xa3/0x120 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x27/0x40 net/socket.c:2103
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fbdd52490f9
RSP: 002b:00007fbdd3779168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fbdd5369120 RCX: 00007fbdd52490f9
RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000005
RBP: 00007fbdd52a4ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd3e6bfd6f R14: 00007fbdd3779300 R15: 0000000000022000
INFO: task syz-executor.0:10586 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.0  D28680 10586   7982 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
 exp_funnel_lock kernel/rcu/tree_exp.h:295 [inline]
 _synchronize_rcu_expedited+0x5f6/0x770 kernel/rcu/tree_exp.h:596
 synchronize_net+0x2b/0x40 net/core/dev.c:8248
 dev_deactivate_many+0x3d9/0x970 net/sched/sch_generic.c:936
 __dev_close_many+0x11d/0x270 net/core/dev.c:1437
 dev_close_many+0x205/0x5f0 net/core/dev.c:1475
 rollback_registered_many+0x399/0xbb0 net/core/dev.c:7189
 rollback_registered+0xca/0x170 net/core/dev.c:7253
 unregister_netdevice_queue+0x1b4/0x360 net/core/dev.c:8274
 unregister_vlan_dev+0x25a/0x490 net/8021q/vlan.c:107
 vlan_ioctl_handler+0x26e/0xcb0 net/8021q/vlan.c:593
 sock_ioctl+0x32c/0x4c0 net/socket.c:1049
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7fbdd52490f9
RSP: 002b:00007fbdd3758168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fbdd53691f0 RCX: 00007fbdd52490f9
RDX: 0000000020000000 RSI: 0000000000008982 RDI: 0000000000000007
RBP: 00007fbdd52a4ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd3e6bfd6f R14: 00007fbdd3758300 R15: 0000000000022000
INFO: task syz-executor.3:10590 blocked for more than 140 seconds.
      Not tainted 4.14.305-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D28312 10590   8006 0x00000004
Call Trace:
 context_switch kernel/sched/core.c:2811 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3386
 schedule+0x8d/0x1b0 kernel/sched/core.c:3430
 exp_funnel_lock kernel/rcu/tree_exp.h:295 [inline]
 _synchronize_rcu_expedited+0x5f6/0x770 kernel/rcu/tree_exp.h:596
 bdi_remove_from_list mm/backing-dev.c:935 [inline]
 bdi_unregister+0x144/0x610 mm/backing-dev.c:941
 release_bdi mm/backing-dev.c:970 [inline]
 kref_put include/linux/kref.h:70 [inline]
 bdi_put+0x127/0x160 mm/backing-dev.c:979
 generic_shutdown_super+0x2aa/0x370 fs/super.c:460
 kill_anon_super+0x36/0x90 fs/super.c:1006
 deactivate_locked_super+0x6c/0xd0 fs/super.c:319
 deactivate_super+0x7f/0xa0 fs/super.c:350
 cleanup_mnt+0x186/0x2c0 fs/namespace.c:1183
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f55d533962a
RSP: 002b:00007f55d38a9f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffec RBX: 0000000000000000 RCX: 00007f55d533962a
RDX: 0000000020000000 RSI: 0000000020000080 RDI: 0000000000000000
RBP: 00007f55d38aa020 R08: 00007f55d38aa020 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000080 R14: 00007f55d38a9fe0 R15: 0000000020000380

Showing all locks held in the system:
2 locks held by kworker/1:0/18:
 #0:  ("events"){+.+.}, at: [<ffffffff813660e0>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088
 #1:  (key_gc_work){+.+.}, at: [<ffffffff81366116>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092
2 locks held by kworker/u4:3/742:
 #0:  ("events_unbound"){+.+.}, at: [<ffffffff813660e0>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088
 #1:  ((reaper_work).work){+.+.}, at: [<ffffffff81366116>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092
1 lock held by khungtaskd/1533:
 #0:  (tasklist_lock){.+.+}, at: [<ffffffff8702d99c>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548
3 locks held by kworker/1:2/3625:
 #0:  ("%s"("ipv6_addrconf")){+.+.}, at: [<ffffffff813660e0>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088
 #1:  ((addr_chk_work).work){+.+.}, at: [<ffffffff81366116>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092
 #2:  (rtnl_mutex){+.+.}, at: [<ffffffff8637751a>] addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4421
1 lock held by syz-executor.2/7990:
 #0:  (rcu_preempt_state.exp_mutex){+.+.}, at: [<ffffffff8147148d>] exp_funnel_lock kernel/rcu/tree_exp.h:305 [inline]
 #0:  (rcu_preempt_state.exp_mutex){+.+.}, at: [<ffffffff8147148d>] _synchronize_rcu_expedited+0x32d/0x770 kernel/rcu/tree_exp.h:596
2 locks held by kworker/u4:5/8932:
 #0:  ("events_unbound"){+.+.}, at: [<ffffffff813660e0>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088
 #1:  (connector_reaper_work){+.+.}, at: [<ffffffff81366116>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092
4 locks held by kworker/u4:6/9245:
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff813660e0>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088
 #1:  (net_cleanup_work){+.+.}, at: [<ffffffff81366116>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092
 #2:  (net_mutex){+.+.}, at: [<ffffffff85c25020>] cleanup_net+0x110/0x840 net/core/net_namespace.c:453
 #3:  (rtnl_mutex){+.+.}, at: [<ffffffff85c5af2d>] netdev_wait_allrefs net/core/dev.c:7853 [inline]
 #3:  (rtnl_mutex){+.+.}, at: [<ffffffff85c5af2d>] netdev_run_todo+0x79d/0xad0 net/core/dev.c:7947
2 locks held by syz-executor.4/10551:
 #0:  (&sb->s_type->i_mutex_key#13){+.+.}, at: [<ffffffff85bcf2c6>] inode_lock include/linux/fs.h:719 [inline]
 #0:  (&sb->s_type->i_mutex_key#13){+.+.}, at: [<ffffffff85bcf2c6>] __sock_release+0x86/0x2b0 net/socket.c:601
 #1:  (rcu_preempt_state.exp_mutex){+.+.}, at: [<ffffffff81471422>] exp_funnel_lock kernel/rcu/tree_exp.h:272 [inline]
 #1:  (rcu_preempt_state.exp_mutex){+.+.}, at: [<ffffffff81471422>] _synchronize_rcu_expedited+0x2c2/0x770 kernel/rcu/tree_exp.h:596
1 lock held by syz-executor.0/10584:
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c92fb1>] rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c92fb1>] rtnl_newlink+0x7e1/0x1830 net/core/rtnetlink.c:2682
2 locks held by syz-executor.0/10586:
 #0:  (vlan_ioctl_mutex){+.+.}, at: [<ffffffff85bd55e3>] sock_ioctl+0x313/0x4c0 net/socket.c:1047
 #1:  (rtnl_mutex){+.+.}, at: [<ffffffff868a1d6a>] vlan_ioctl_handler+0x9a/0xcb0 net/8021q/vlan.c:518
1 lock held by syz-executor.4/10607:
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317
1 lock held by syz-executor.0/10618:
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317
1 lock held by syz-executor.4/10629:
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317
1 lock held by syz-executor.0/10640:
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317
1 lock held by syz-executor.4/10651:
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317
1 lock held by syz-executor.0/10662:
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnl_lock net/core/rtnetlink.c:72 [inline]
 #0:  (rtnl_mutex){+.+.}, at: [<ffffffff85c8dcdd>] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317

=============================================

NMI backtrace for cpu 1
CPU: 1 PID: 1533 Comm: khungtaskd Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline]
 watchdog+0x5b9/0xb40 kernel/hung_task.c:274
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3 Comm: kworker/0:0 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Workqueue: events rtc_timer_do_work
task: ffff8880b5fd60c0 task.stack: ffff8880b5fe0000
RIP: 0010:mark_lock+0x2f/0x1050 kernel/locking/lockdep.c:3161
RSP: 0018:ffff8880b5fe7b18 EFLAGS: 00000002
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000002
RDX: 1ffff11016bfad2d RSI: ffff8880b5fd6948 RDI: ffff8880b5fd60c0
RBP: 0000000000000003 R08: ffffffff8b9c1d78 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004
R13: ffff8880b5fd60c0 R14: ffff8880b5fd6968 R15: 0000000000000002
FS:  0000000000000000(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8141382000 CR3: 00000000a22db000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 mark_held_locks+0xa6/0xf0 kernel/locking/lockdep.c:2854
 __trace_hardirqs_on_caller kernel/locking/lockdep.c:2875 [inline]
 trace_hardirqs_on_caller+0x288/0x580 kernel/locking/lockdep.c:2930
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
 _raw_spin_unlock_irqrestore+0x79/0xe0 kernel/locking/spinlock.c:192
 spin_unlock_irqrestore include/linux/spinlock.h:372 [inline]
 rtc_handle_legacy_irq+0x7a/0x180 drivers/rtc/interface.c:515
 rtc_timer_do_work+0x220/0x590 drivers/rtc/interface.c:881
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406
Code: 00 00 00 fc ff df 41 57 89 d1 41 89 d7 41 56 4c 8d 76 20 4c 89 f2 41 55 49 89 fd 41 54 48 c1 ea 03 41 bc 01 00 00 00 55 41 d3 e4 <48> 89 f5 53 48 83 ec 18 0f b6 04 02 84 c0 74 08 3c 01 0f 8e d6 
----------------
Code disassembly (best guess), 5 bytes skipped:
   0:	df 41 57             	filds  0x57(%rcx)
   3:	89 d1                	mov    %edx,%ecx
   5:	41 89 d7             	mov    %edx,%r15d
   8:	41 56                	push   %r14
   a:	4c 8d 76 20          	lea    0x20(%rsi),%r14
   e:	4c 89 f2             	mov    %r14,%rdx
  11:	41 55                	push   %r13
  13:	49 89 fd             	mov    %rdi,%r13
  16:	41 54                	push   %r12
  18:	48 c1 ea 03          	shr    $0x3,%rdx
  1c:	41 bc 01 00 00 00    	mov    $0x1,%r12d
  22:	55                   	push   %rbp
  23:	41 d3 e4             	shl    %cl,%r12d
* 26:	48 89 f5             	mov    %rsi,%rbp <-- trapping instruction
  29:	53                   	push   %rbx
  2a:	48 83 ec 18          	sub    $0x18,%rsp
  2e:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax
  32:	84 c0                	test   %al,%al
  34:	74 08                	je     0x3e
  36:	3c 01                	cmp    $0x1,%al
  38:	0f                   	.byte 0xf
  39:	8e d6                	mov    %esi,%ss