INFO: task kworker/0:1:9 blocked for more than 143 seconds.
      Not tainted 6.12.0-syzkaller-g158f238aa69d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1     state:D stack:24912 pid:9     tgid:9     ppid:2      flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0xe55/0x5740 kernel/sched/core.c:6693
 __schedule_loop kernel/sched/core.c:6770 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6785
 usb_kill_urb.part.0+0x1ca/0x250 drivers/usb/core/urb.c:713
 usb_kill_urb+0x83/0xa0 drivers/usb/core/urb.c:702
 usb_start_wait_urb+0x255/0x4c0 drivers/usb/core/message.c:65
 usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
 usb_control_msg+0x327/0x4b0 drivers/usb/core/message.c:154
 get_bMaxPacketSize0.constprop.0+0xa5/0x1c0 drivers/usb/core/hub.c:4805
 hub_port_init+0x693/0x3a40 drivers/usb/core/hub.c:5001
 hub_port_connect drivers/usb/core/hub.c:5450 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 port_event drivers/usb/core/hub.c:5821 [inline]
 hub_event+0x2b4f/0x4e10 drivers/usb/core/hub.c:5903
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

Showing all locks held in the system:
5 locks held by kworker/0:1/9:
 #0: ffff8880232a5d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x129b/0x1ba0 kernel/workqueue.c:3204
 #1: ffffc900000e7d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 kernel/workqueue.c:3205
 #2: ffff888029a3a190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1014 [inline]
 #2: ffff888029a3a190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4e10 drivers/usb/core/hub.c:5849
 #3: ffff888029a3e510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3206 [inline]
 #3: ffff888029a3e510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5418 [inline]
 #3: ffff888029a3e510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 #3: ffff888029a3e510 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline]
 #3: ffff888029a3e510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x27ec/0x4e10 drivers/usb/core/hub.c:5903
 #4: ffff888029670a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5419 [inline]
 #4: ffff888029670a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
 #4: ffff888029670a68 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline]
 #4: ffff888029670a68 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2815/0x4e10 drivers/usb/core/hub.c:5903
1 lock held by khungtaskd/30:
 #0: ffffffff8e1b8540 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 #0: ffffffff8e1b8540 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
 #0: ffffffff8e1b8540 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x7f/0x390 kernel/locking/lockdep.c:6720
2 locks held by klogd/5189:
 #0: ffff8880b863eed8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:598
 #1: ffff8880b863eed8 (&rq->__lock){-.-.}-{2:2}, at: fs_reclaim_acquire mm/page_alloc.c:3868 [inline]
 #1: ffff8880b863eed8 (&rq->__lock){-.-.}-{2:2}, at: fs_reclaim_acquire+0xae/0x150 mm/page_alloc.c:3859
2 locks held by getty/5578:
 #0: ffff88814e1c50a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-syzkaller-g158f238aa69d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
 watchdog+0xf0c/0x1240 kernel/hung_task.c:379
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5200 Comm: udevd Not tainted 6.12.0-syzkaller-g158f238aa69d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:iterate_chain_key kernel/locking/lockdep.c:448 [inline]
RIP: 0010:__lock_acquire+0xc32/0x3ce0 kernel/locking/lockdep.c:5190
Code: b7 44 24 38 8b 5c 24 58 8b 4c 24 40 c1 e0 0d 66 0b 44 24 20 98 29 d8 8b 5c 24 60 31 d8 8b 5c 24 68 89 c2 29 c1 c1 c2 06 31 ca <01> d8 29 d3 89 d9 89 d3 01 c2 c1 c3 08 31 cb 89 d9 29 d8 01 d3 c1
RSP: 0018:ffffc9000384fb60 EFLAGS: 00000082
RAX: 00000000ffffbfdc RBX: 00000000fffffffe RCX: 0000000000004023
RDX: 00000000ffefb71c RSI: 0000000000000008 RDI: ffffffff96e3ab30
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff2dc7188
R10: ffffffff96e38c47 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88801ff9af20 R14: 0000000000000004 R15: ffff88801ff9a440
FS:  00007ff8698b4280(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555585a18938 CR3: 00000000798b0000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5825
 rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
 rcu_read_lock include/linux/rcupdate.h:849 [inline]
 mntput_no_expire+0xa1/0xaf0 fs/namespace.c:1399
 mntput+0x6b/0x90 fs/namespace.c:1469
 __fput+0x542/0xb60 fs/file_table.c:461
 __fput_sync+0xa1/0xc0 fs/file_table.c:535
 __do_sys_close fs/open.c:1550 [inline]
 __se_sys_close fs/open.c:1535 [inline]
 __x64_sys_close+0x86/0x100 fs/open.c:1535
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff86951a37f
Code: af 6a 0d 00 f7 d8 64 89 02 48 83 c8 ff 44 89 c7 48 89 04 24 e8 e1 fc f9 ff 48 8b 04 24 48 83 c4 28 c3 c3 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 7a 6a 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffe74469698 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 000055b75b95c540 RCX: 00007ff86951a37f
RDX: 00007ff8695ed860 RSI: 0000000000000000 RDI: 000000000000000c
RBP: 0000000000000000 R08: 000000000000000c R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000202 R12: 0000000000000000
R13: 0000000000000007 R14: 0000000000000000 R15: 000055b74881bfc1
 </TASK>