INFO: task syz-executor115:5065 blocked for more than 143 seconds.
Not tainted 6.6.0-rc5-syzkaller-00243-g727fb8376504 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor115 state:D stack:28160 pid:5065 ppid:5059 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0xee1/0x5a10 kernel/sched/core.c:6695
schedule+0xe7/0x1b0 kernel/sched/core.c:6771
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6830
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x969/0x1340 kernel/locking/mutex.c:747
device_lock include/linux/device.h:992 [inline]
usbdev_release+0x87/0x4b0 drivers/usb/core/devio.c:1096
__fput+0x3f7/0xa70 fs/file_table.c:384
__fput_sync+0x47/0x50 fs/file_table.c:465
__do_sys_close fs/open.c:1572 [inline]
__se_sys_close fs/open.c:1557 [inline]
__x64_sys_close+0x87/0xf0 fs/open.c:1557
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6a2d6170e0
RSP: 002b:00007ffdabe52ea8 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6a2d6170e0
RDX: 0000000000000007 RSI: 00007ffdabe529e0 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 000000000006837a R14: 00007ffdabe52ecc R15: 00007ffdabe52ef0
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8cbab2a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:303 [inline]
#0: ffffffff8cbab2a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:749 [inline]
#0: ffffffff8cbab2a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613
2 locks held by getty/4787:
#0: ffff88802a1ba0a0 (&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+0xfc5/0x1480 drivers/tty/n_tty.c:2206
5 locks held by kworker/1:3/4833:
#0: ffff8880146b8138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc900035ffd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffff88814278c190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#2: ffff88814278c190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4e00 drivers/usb/core/hub.c:5768
#3: ffff88814278f508 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3138 [inline]
#3: ffff88814278f508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5337 [inline]
#3: ffff88814278f508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
#3: ffff88814278f508 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5740 [inline]
#3: ffff88814278f508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x2801/0x4e00 drivers/usb/core/hub.c:5822
#4: ffff8881427a0668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5338 [inline]
#4: ffff8881427a0668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
#4: ffff8881427a0668 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5740 [inline]
#4: ffff8881427a0668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x282a/0x4e00 drivers/usb/core/hub.c:5822
1 lock held by syz-executor115/5065:
#0: ffff88814278c190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff88814278c190 (&dev->mutex){....}-{3:3}, at: usbdev_release+0x87/0x4b0 drivers/usb/core/devio.c:1096
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.6.0-rc5-syzkaller-00243-g727fb8376504 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x299/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xf87/0x1210 kernel/hung_task.c:379
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2433 Comm: kworker/u4:7 Not tainted 6.6.0-rc5-syzkaller-00243-g727fb8376504 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__lock_acquire+0x3f4/0x5de0 kernel/locking/lockdep.c:5084
Code: c1 e2 15 09 d0 41 8b 55 20 81 e2 ff 1f 00 00 09 d0 48 89 fa 41 89 45 20 48 c1 ea 03 48 b8 00 00 00 00 00 fc ff df 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 9b 3d 00 00 8b
RSP: 0018:ffffc90009f3f800 EFLAGS: 00000017
RAX: dffffc0000000000 RBX: 000000000000000a RCX: ffff88802525d940
RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88802525e4cc
RBP: 0000000000000000 R08: 1ffff11004a4bc94 R09: 0000000000000000
R10: ffffffff8ca6c728 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88802525e4a8 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000556648fac680 CR3: 000000000c976000 CR4: 0000000000350ef0
Call Trace:
lock_acquire kernel/locking/lockdep.c:5753 [inline]
lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5718
__mutex_lock_common kernel/locking/mutex.c:603 [inline]
__mutex_lock+0x181/0x1340 kernel/locking/mutex.c:747
arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:145
jump_label_update+0x32e/0x410 kernel/jump_label.c:829
static_key_disable_cpuslocked+0x154/0x1b0 kernel/jump_label.c:235
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
toggle_allocation_gate mm/kfence/core.c:835 [inline]
toggle_allocation_gate+0x13f/0x250 mm/kfence/core.c:822
process_one_work+0x884/0x15c0 kernel/workqueue.c:2630
process_scheduled_works kernel/workqueue.c:2703 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2784
kthread+0x33c/0x440 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304