INFO: task kworker/0:1:14 blocked for more than 143 seconds.
Not tainted 6.1.35-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:24384 pid:14 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x132c/0x4330 kernel/sched/core.c:6554
schedule+0xbf/0x180 kernel/sched/core.c:6630
usb_kill_urb+0x1c5/0x300 drivers/usb/core/urb.c:728
usb_start_wait_urb+0x1ac/0x510 drivers/usb/core/message.c:64
usb_internal_control_msg drivers/usb/core/message.c:102 [inline]
usb_control_msg+0x2ad/0x4c0 drivers/usb/core/message.c:153
usb_get_descriptor+0xb3/0x3c0 drivers/usb/core/message.c:793
usb_get_device_descriptor+0x8a/0xe0 drivers/usb/core/message.c:1071
hub_port_init+0x106a/0x2430 drivers/usb/core/hub.c:4922
hub_port_connect drivers/usb/core/hub.c:5284 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5499 [inline]
port_event drivers/usb/core/hub.c:5655 [inline]
hub_event+0x294a/0x57b0 drivers/usb/core/hub.c:5737
process_one_work+0x8aa/0x11f0 kernel/workqueue.c:2289
worker_thread+0xa5f/0x1210 kernel/workqueue.c:2436
kthread+0x26e/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf27470 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf27c70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
5 locks held by kworker/0:1/14:
#0: ffff888143adcd38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x77a/0x11f0
#1: ffffc90000137d20 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7bd/0x11f0 kernel/workqueue.c:2264
#2: ffff888145f63190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:836 [inline]
#2: ffff888145f63190 (&dev->mutex){....}-{3:3}, at: hub_event+0x20e/0x57b0 drivers/usb/core/hub.c:5683
#3: ffff888145f664f8 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3105 [inline]
#3: ffff888145f664f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5251 [inline]
#3: ffff888145f664f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5499 [inline]
#3: ffff888145f664f8 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5655 [inline]
#3: ffff888145f664f8 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2278/0x57b0 drivers/usb/core/hub.c:5737
#4: ffff88801ecd5b68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5252 [inline]
#4: ffff88801ecd5b68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5499 [inline]
#4: ffff88801ecd5b68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5655 [inline]
#4: ffff88801ecd5b68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x22a1/0x57b0 drivers/usb/core/hub.c:5737
1 lock held by khungtaskd/28:
#0: ffffffff8cf272a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3303:
#0: ffff88814b36f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor359/3566:
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.35-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf18/0xf60 kernel/hung_task.c:377
kthread+0x26e/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 3566 Comm: syz-executor359 Not tainted 6.1.35-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:wait_consider_task+0xb2/0x2e20 kernel/exit.c:1386
Code: 00 00 42 c6 44 29 0b f3 e8 2b 4b 36 00 48 89 5c 24 08 48 81 c3 4c 05 00 00 48 89 d8 48 c1 e8 03 48 89 44 24 40 42 0f b6 04 28 <84> c0 0f 85 2d 24 00 00 44 8b 33 bf 10 00 00 00 44 89 f6 e8 56 4e
RSP: 0018:ffffc90003a9f9e0 EFLAGS: 00000a03
RAX: 0000000000000000 RBX: ffff8880234c230c RCX: ffff88801fcd8000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90003a9fcc0
RBP: ffffc90003a9fbd0 R08: ffffffff8153933b R09: ffffffff81538bda
R10: 0000000000000002 R11: ffff88801fcd8000 R12: ffffc90003a9fcc0
R13: dffffc0000000000 R14: 0000000040000005 R15: 0000000000000000
FS: 00005555560a8300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f413cdc1d60 CR3: 0000000070db9000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
do_wait_thread kernel/exit.c:1495 [inline]
do_wait+0x328/0xb70 kernel/exit.c:1612
kernel_wait4+0x29e/0x3e0 kernel/exit.c:1775
__do_sys_wait4 kernel/exit.c:1803 [inline]
__se_sys_wait4 kernel/exit.c:1799 [inline]
__x64_sys_wait4+0x130/0x1e0 kernel/exit.c:1799
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f413cd90cc6
Code: 0f 1f 40 00 31 c9 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 49 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 90 48 83 ec 28 89 54 24 14 48 89 74 24
RSP: 002b:00007ffdc2e33cf8 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
RAX: ffffffffffffffda RBX: 0000000000006f56 RCX: 00007f413cd90cc6
RDX: 0000000040000001 RSI: 00007ffdc2e33d1c RDI: 00000000ffffffff
RBP: 00007ffdc2e33d50 R08: 00007ffdc2e6c0b0 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240
R13: 00007ffdc2e33d1c R14: 00007ffdc2e33d40 R15: 00007ffdc2e33d30
</TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.296 msecs