INFO: task kworker/0:0:7 blocked for more than 163 seconds.
Not tainted 6.1.97-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0 state:D stack:23800 pid:7 ppid:2 flags:0x00004000
Workqueue: events pwq_unbound_release_workfn
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
exp_funnel_lock kernel/rcu/tree_exp.h:314 [inline]
synchronize_rcu_expedited+0x819/0x930 kernel/rcu/tree_exp.h:962
synchronize_rcu+0x11c/0x3f0 kernel/rcu/tree.c:3575
lockdep_unregister_key+0x537/0x5e0 kernel/locking/lockdep.c:6355
wq_unregister_lockdep kernel/workqueue.c:3500 [inline]
pwq_unbound_release_workfn+0x23d/0x290 kernel/workqueue.c:3738
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/0:14:3744 blocked for more than 163 seconds.
Not tainted 6.1.97-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:14 state:D stack:22744 pid:3744 ppid:2 flags:0x00004000
Workqueue: events free_ipc
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
exp_funnel_lock kernel/rcu/tree_exp.h:314 [inline]
synchronize_rcu_expedited+0x819/0x930 kernel/rcu/tree_exp.h:962
synchronize_rcu+0x11c/0x3f0 kernel/rcu/tree.c:3575
kern_unmount+0x52/0xf0 fs/namespace.c:4485
free_ipc_ns ipc/namespace.c:136 [inline]
free_ipc+0x6c/0x1d0 ipc/namespace.c:157
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task kworker/u4:6:4252 blocked for more than 163 seconds.
Not tainted 6.1.97-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:6 state:D stack:21312 pid:4252 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
exp_funnel_lock kernel/rcu/tree_exp.h:314 [inline]
synchronize_rcu_expedited+0x819/0x930 kernel/rcu/tree_exp.h:962
synchronize_rcu+0x11c/0x3f0 kernel/rcu/tree.c:3575
lockdep_unregister_key+0x537/0x5e0 kernel/locking/lockdep.c:6355
wq_unregister_lockdep kernel/workqueue.c:3500 [inline]
destroy_workqueue+0x81f/0xae0 kernel/workqueue.c:4469
wg_destruct+0x1de/0x2f0 drivers/net/wireguard/device.c:257
netdev_run_todo+0xd7f/0xf40 net/core/dev.c:10405
default_device_exit_batch+0x95b/0x9d0 net/core/dev.c:11396
ops_exit_list net/core/net_namespace.c:177 [inline]
cleanup_net+0x763/0xb60 net/core/net_namespace.c:604
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
INFO: task syz-executor:9904 blocked for more than 164 seconds.
Not tainted 6.1.97-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:21224 pid:9904 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
synchronize_rcu_expedited+0x777/0x930 kernel/rcu/tree_exp.h:977
synchronize_rcu+0x11c/0x3f0 kernel/rcu/tree.c:3575
hci_conn_hash_del include/net/bluetooth/hci_core.h:1016 [inline]
hci_conn_cleanup net/bluetooth/hci_conn.c:153 [inline]
hci_conn_del+0x669/0xde0 net/bluetooth/hci_conn.c:1088
hci_conn_hash_flush+0x205/0x2a0 net/bluetooth/hci_conn.c:2448
hci_dev_close_sync+0x9a9/0x1020 net/bluetooth/hci_sync.c:5018
hci_dev_do_close net/bluetooth/hci_core.c:554 [inline]
hci_unregister_dev+0x1d7/0x4d0 net/bluetooth/hci_core.c:2736
vhci_release+0x7f/0xd0 drivers/bluetooth/hci_vhci.c:573
__fput+0x3b7/0x890 fs/file_table.c:320
task_work_run+0x246/0x300 kernel/task_work.c:179
exit_task_work include/linux/task_work.h:38 [inline]
do_exit+0xa73/0x26a0 kernel/exit.c:869
do_group_exit+0x202/0x2b0 kernel/exit.c:1019
get_signal+0x16f7/0x17d0 kernel/signal.c:2862
arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:174
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f6d9397490a
RSP: 002b:00007ffc23f0e800 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f6d9397490a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007ffc23f0e86c R08: 0000000000000000 R09: 00007ffc23f0e567
R10: 0000000000000000 R11: 0000000000000293 R12: 00007ffc23f0e8e0
R13: 0000000000000062 R14: 0000000000071a29 R15: 0000000000071a29
INFO: task syz-executor:10378 blocked for more than 164 seconds.
Not tainted 6.1.97-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D stack:25000 pid:10378 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5245 [inline]
__schedule+0x142d/0x4550 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6b9/0xd80 kernel/locking/mutex.c:747
ip_tunnel_init_net+0x20f/0x700 net/ipv4/ip_tunnel.c:1099
vti_init_net+0x2a/0xf0 net/ipv4/ip_vti.c:504
ops_init+0x35d/0x610 net/core/net_namespace.c:138
setup_net+0x4b5/0xb90 net/core/net_namespace.c:335
copy_net_ns+0x392/0x5d0 net/core/net_namespace.c:481
create_new_namespaces+0x425/0x7a0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x11e/0x170 kernel/nsproxy.c:226
ksys_unshare+0x580/0xb20 kernel/fork.c:3203
__do_sys_unshare kernel/fork.c:3274 [inline]
__se_sys_unshare kernel/fork.c:3272 [inline]
__x64_sys_unshare+0x34/0x40 kernel/fork.c:3272
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f1046d77337
RSP: 002b:00007ffec23a7e88 EFLAGS: 00000202 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f1046f03f20 RCX: 00007f1046d77337
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000
RBP: 00007f1046f04a18 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000000c
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000009