INFO: task kworker/1:5:4929 blocked for more than 143 seconds.
Not tainted 6.11.0-rc6-syzkaller-g9c0c11bb87b0 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:5 state:D stack:21216 pid:4929 tgid:4929 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5188 [inline]
__schedule+0xcda/0x2f80 kernel/sched/core.c:6529
__schedule_loop kernel/sched/core.c:6606 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6621
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6678
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
adu_disconnect+0xb2/0x1c0 drivers/usb/misc/adutux.c:770
usb_unbind_interface+0x1e8/0x970 drivers/usb/core/driver.c:461
device_remove drivers/base/dd.c:568 [inline]
device_remove+0x122/0x170 drivers/base/dd.c:560
__device_release_driver drivers/base/dd.c:1272 [inline]
device_release_driver_internal+0x44a/0x610 drivers/base/dd.c:1295
bus_remove_device+0x22f/0x420 drivers/base/bus.c:574
device_del+0x396/0x9f0 drivers/base/core.c:3871
usb_disable_device+0x36c/0x7f0 drivers/usb/core/message.c:1418
usb_disconnect+0x2e1/0x920 drivers/usb/core/hub.c:2304
hub_port_connect drivers/usb/core/hub.c:5361 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x1bed/0x4f40 drivers/usb/core/hub.c:5903
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
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
Showing all locks held in the system:
5 locks held by kworker/0:0/8:
#0: ffff888105eb6d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc9000008fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff8881097e6190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff8881097e6190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff88811b66d190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff88811b66d190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x920 drivers/usb/core/hub.c:2295
#4: ffff888119cb9160 (&dev->mutex
){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1094 [inline]
){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1292
1 lock held by khungtaskd/30:
#0: ffffffff88ebb660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
#0: ffffffff88ebb660 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
#0: ffffffff88ebb660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6626
2 locks held by getty/2605:
#0: ffff888108adf0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900000432f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2211
6 locks held by kworker/1:5/4929:
#0: ffff888105eb6d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc90003d87d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888109b4e190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff888109b4e190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff88811a561190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#3: ffff88811a561190 (&dev->mutex){....}-{3:3}, at: usb_disconnect+0x10a/0x920 drivers/usb/core/hub.c:2295
#4: ffff88811dab6160 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#4: ffff88811dab6160 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1094 [inline]
#4: ffff88811dab6160 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa4/0x610 drivers/base/dd.c:1292
#5: ffffffff89ad3688 (adutux_mutex){+.+.}-{3:3}, at: adu_disconnect+0xb2/0x1c0 drivers/usb/misc/adutux.c:770
5 locks held by kworker/0:6/4971:
#0: ffff8881f583d718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:560 [inline]
#0: ffff8881f583d718 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock kernel/sched/sched.h:1415 [inline]
#0: ffff8881f583d718 (&rq->__lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1714 [inline]
#0: ffff8881f583d718 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x28e/0x2f80 kernel/sched/core.c:6436
#1: ffffc90004537d80 ((work_completion)(&dev->power.work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff8881093f6218 (&dev->power.lock){-.-.}-{2:2}, at: spin_lock_irq include/linux/spinlock.h:376 [inline]
#2: ffff8881093f6218 (&dev->power.lock){-.-.}-{2:2}, at: rpm_idle+0x671/0x740 drivers/base/power/runtime.c:529
#3: ffff8881093f6360 (&dev->power.wait_queue){..-.}-{2:2}, at: __wake_up_common_lock kernel/sched/wait.c:105 [inline]
#3: ffff8881093f6360 (&dev->power.wait_queue){..-.}-{2:2}, at: __wake_up+0x1c/0x60 kernel/sched/wait.c:127
#4: ffff8881f583d2a0 (&pool->lock){-.-.}-{2:2}, at: __queue_work+0x26b/0x1070 kernel/workqueue.c:2301
1 lock held by syz.2.1772/10942:
#0: ffffffff89ad3688 (adutux_mutex){+.+.}-{3:3}, at: adu_release+0xcf/0x720 drivers/usb/misc/adutux.c:323
11 locks held by kworker/0:1/11703:
#0: ffff888105eb6d48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
#1: ffffc9000fb5fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
#2: ffff888105f7f190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline]
#2: ffff888105f7f190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f40 drivers/usb/core/hub.c:5849
#3: ffff88810973a510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3206 [inline]
#3: ffff88810973a510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5418 [inline]
#3: ffff88810973a510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
#3: ffff88810973a510 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline]
#3: ffff88810973a510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x28aa/0x4f40 drivers/usb/core/hub.c:5903
#4: ffff8881067ba668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5419 [inline]
#4: ffff8881067ba668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
#4: ffff8881067ba668 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline]
#4: ffff8881067ba668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x28d0/0x4f40 drivers/usb/core/hub.c:5903
#5: ffffffff88ee6e88 (tk_core.seq.seqcount){----}-{0:0}
, at: raw_spin_rq_lock_nested kernel/sched/core.c:560 [inline]
, at: raw_spin_rq_lock kernel/sched/sched.h:1415 [inline]
, at: rq_lock kernel/sched/sched.h:1714 [inline]
, at: ttwu_queue kernel/sched/core.c:3844 [inline]
, at: try_to_wake_up+0x4fe/0x10b0 kernel/sched/core.c:4167
#6: ffffffff88dc8d98 (console_owner_lock
){..-.}-{2:2}, at: console_lock_spinning_disable_and_check kernel/printk/printk.c:1912 [inline]
){..-.}-{2:2}, at: console_emit_next_record kernel/printk/printk.c:2989 [inline]
){..-.}-{2:2}, at: console_flush_all+0x5bf/0xd70 kernel/printk/printk.c:3049
#7:
ffffffff88ee6e88
(
tk_core.seq.seqcount){----}-{0:0}, at: raw_spin_rq_lock_nested kernel/sched/core.c:560 [inline]
tk_core.seq.seqcount){----}-{0:0}, at: raw_spin_rq_lock kernel/sched/sched.h:1415 [inline]
tk_core.seq.seqcount){----}-{0:0}, at: rq_lock kernel/sched/sched.h:1714 [inline]
tk_core.seq.seqcount){----}-{0:0}, at: ttwu_queue kernel/sched/core.c:3844 [inline]
tk_core.seq.seqcount){----}-{0:0}, at: try_to_wake_up+0x4fe/0x10b0 kernel/sched/core.c:4167
#8: ffffffff88dc8d98 (console_owner_lock){..-.}-{2:2}
, at: console_lock_spinning_disable_and_check kernel/printk/printk.c:1912 [inline]
, at: console_emit_next_record kernel/printk/printk.c:2989 [inline]
, at: console_flush_all+0x5bf/0xd70 kernel/printk/printk.c:3049
#9:
ffff88811f0309d0
(&p->pi_lock
){-.-.}-{2:2}, at: class_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]
){-.-.}-{2:2}, at: try_to_wake_up+0x94/0x10b0 kernel/sched/core.c:4051
#10: ffff8881f583d718
(&rq->__lock){-.-.}-{2:2}
, at: raw_spin_rq_lock_nested kernel/sched/core.c:560 [inline]
, at: raw_spin_rq_lock kernel/sched/sched.h:1415 [inline]
, at: rq_lock kernel/sched/sched.h:1714 [inline]
, at: ttwu_queue kernel/sched/core.c:3844 [inline]
, at: try_to_wake_up+0x4fe/0x10b0 kernel/sched/core.c:4167
2 locks held by syz.2.3180/16292:
#0: ffffffff899affb0
(minor_rwsem
){++++}-{3:3}
, at: usb_open+0x27/0x2f0 drivers/usb/core/file.c:38
#1: ffffffff89ad3688
(adutux_mutex){+.+.}-{3:3}
, at: adu_open+0x5d/0x820 drivers/usb/misc/adutux.c:236
1 lock held by syz.3.3152/16319:
#0: ffffffff88ec6df8 (
rcu_state.exp_mutex){+.+.}-{3:3}
, at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:296
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.11.0-rc6-syzkaller-g9c0c11bb87b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
__dump_stack lib/dump_stack.c:93 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
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
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 11703 Comm: kworker/0:1 Not tainted 6.11.0-rc6-syzkaller-g9c0c11bb87b0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: usb_hub_wq hub_event
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:103 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x61/0x1a0 mm/kasan/generic.c:189
Code: 37 ff 48 89 fd 48 b8 00 00 00 00 00 fc ff df 4d 89 d1 48 c1 ed 03 49 c1 e9 03 48 01 c5 49 01 c1 48 89 e8 49 8d 59 01 48 89 da <48> 29 ea 48 83 fa 10 0f 8e 8d 00 00 00 41 89 eb 41 83 e3 07 0f 85
RSP: 0018:ffffc90000007ab8 EFLAGS: 00000082
RAX: fffffbfff14a6b0b RBX: fffffbfff14a6b0c RCX: ffffffff8132c869
RDX: fffffbfff14a6b0c RSI: 0000000000000008 RDI: ffffffff8a535858
RBP: fffffbfff14a6b0b R08: 0000000000000000 R09: fffffbfff14a6b0b
R10: ffffffff8a53585f R11: 0000000000000000 R12: ffff8881016a6190
R13: ffff8881016a57d4 R14: 000000000003c44c R15: 000000000003d700
FS: 0000000000000000(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbb6b312000 CR3: 0000000117a82000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
cpumask_test_cpu include/linux/cpumask.h:562 [inline]
cpu_online include/linux/cpumask.h:1105 [inline]
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0xa9/0x6f0 kernel/locking/lockdep.c:5770
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x1a/0x80 kernel/locking/spinlock.c:194
class_raw_spinlock_irqsave_destructor include/linux/spinlock.h:551 [inline]
try_to_wake_up+0x55d/0x10b0 kernel/sched/core.c:4051
call_timer_fn+0x1a0/0x610 kernel/time/timer.c:1792
expire_timers kernel/time/timer.c:1843 [inline]
__run_timers+0x74b/0xaf0 kernel/time/timer.c:2417
__run_timer_base kernel/time/timer.c:2428 [inline]
__run_timer_base kernel/time/timer.c:2421 [inline]
run_timer_base+0x111/0x190 kernel/time/timer.c:2437
run_timer_softirq+0x1a/0x40 kernel/time/timer.c:2447
handle_softirqs+0x209/0x8e0 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu kernel/softirq.c:637 [inline]
irq_exit_rcu+0xac/0x110 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2010 [inline]
RIP: 0010:vprintk_emit+0x396/0x600 kernel/printk/printk.c:2347
Code: 00 4d 85 e4 0f 85 04 02 00 00 e8 a5 ce 1e 00 9c 5d 81 e5 00 02 00 00 31 ff 48 89 ee e8 03 d1 1e 00 48 85 ed 0f 85 10 02 00 00 85 ce 1e 00 45 31 c9 41 b8 01 00 00 00 31 c9 48 8d 05 00 00 00
RSP: 0018:ffffc9000fb5f6d0 EFLAGS: 00000246
RAX: 0000000000100000 RBX: 0000000000000015 RCX: ffffc9000d9e5000
RDX: 0000000000100000 RSI: ffffffff8135c710 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000200
R13: ffff888101e8d7c0 R14: ffffffff876a4880 R15: ffffc9000fb5f730
dev_vprintk_emit drivers/base/core.c:4912 [inline]
dev_printk_emit+0xfb/0x140 drivers/base/core.c:4923
__dev_printk+0xf5/0x270 drivers/base/core.c:4935
_dev_info+0xe5/0x120 drivers/base/core.c:4981
show_string drivers/usb/core/hub.c:2357 [inline]
show_string drivers/usb/core/hub.c:2353 [inline]
announce_device drivers/usb/core/hub.c:2374 [inline]
usb_new_device+0x939/0x1a10 drivers/usb/core/hub.c:2632
hub_port_connect drivers/usb/core/hub.c:5521 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]
port_event drivers/usb/core/hub.c:5821 [inline]
hub_event+0x2e58/0x4f40 drivers/usb/core/hub.c:5903
process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
process_scheduled_works kernel/workqueue.c:3312 [inline]
worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389
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