INFO: task kworker/0:2:920 blocked for more than 143 seconds.
Not tainted 6.6.0-syzkaller-06824-g8bc9e6515183 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:2 state:D stack:27232 pid:920 tgid:920 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xee2/0x59a0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe7/0x270 kernel/sched/core.c:6778
usb_kill_urb.part.0+0x1c6/0x250 drivers/usb/core/urb.c:713
usb_kill_urb+0x83/0xa0 drivers/usb/core/urb.c:702
usb_start_wait_urb+0x251/0x4c0 drivers/usb/core/message.c:65
usb_internal_control_msg drivers/usb/core/message.c:103 [inline]
usb_control_msg+0x327/0x4a0 drivers/usb/core/message.c:154
get_bMaxPacketSize0.constprop.0+0xa5/0x1c0 drivers/usb/core/hub.c:4744
hub_port_init+0x680/0x3820 drivers/usb/core/hub.c:4940
hub_port_connect drivers/usb/core/hub.c:5388 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5599 [inline]
port_event drivers/usb/core/hub.c:5759 [inline]
hub_event+0x2b61/0x4e10 drivers/usb/core/hub.c:5841
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:242
INFO: task syz-executor151:5059 blocked for more than 143 seconds.
Not tainted 6.6.0-syzkaller-06824-g8bc9e6515183 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor151 state:D stack:26432 pid:5059 tgid:5059 ppid:5056 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0xee2/0x59a0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0xe7/0x270 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
__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+0x270/0xbb0 fs/file_table.c:394
__fput_sync+0x47/0x50 fs/file_table.c:475
__do_sys_close fs/open.c:1590 [inline]
__se_sys_close fs/open.c:1575 [inline]
__x64_sys_close+0x87/0xf0 fs/open.c:1575
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7faa323a00e0
RSP: 002b:00007fff15dbc188 EFLAGS: 00000202 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007faa323a00e0
RDX: 0000000000000007 RSI: 00007fff15dbbcc0 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000f4240
R13: 00007fff15dbc438 R14: 0000000000000001 R15: 00007fff15dbc1d0
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8cfad2e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8cfad2e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8cfad2e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6613
5 locks held by kworker/0:2/920:
#0: ffff88814727b138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x787/0x15c0 kernel/workqueue.c:2605
#1: ffffc9000438fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7e9/0x15c0 kernel/workqueue.c:2606
#2: ffff8880209b6190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#2: ffff8880209b6190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4e10 drivers/usb/core/hub.c:5787
#3: ffff888142772508 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3150 [inline]
#3: ffff888142772508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5356 [inline]
#3: ffff888142772508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5599 [inline]
#3: ffff888142772508 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5759 [inline]
#3: ffff888142772508 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x27fe/0x4e10 drivers/usb/core/hub.c:5841
#4: ffff8880201c0668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5357 [inline]
#4: ffff8880201c0668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5599 [inline]
#4: ffff8880201c0668 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5759 [inline]
#4: ffff8880201c0668 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2827/0x4e10 drivers/usb/core/hub.c:5841
1 lock held by klogd/4499:
2 locks held by getty/4813:
#0: ffff88802a79a0a0 (&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
1 lock held by syz-executor151/5059:
#0: ffff8880209b6190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#0: ffff8880209b6190 (&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-syzkaller-06824-g8bc9e6515183 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
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:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 42 Comm: kworker/u4:2 Not tainted 6.6.0-syzkaller-06824-g8bc9e6515183 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x60 kernel/kcov.c:207
Code: 65 8b 05 d4 3f 7b 7e a9 00 01 ff 00 48 8b 34 24 74 0f f6 c4 01 74 35 8b 82 0c 16 00 00 85 c0 74 2b 8b 82 e8 15 00 00 83 f8 02 <75> 20 48 8b 8a f0 15 00 00 8b 92 ec 15 00 00 48 8b 01 48 83 c0 01
RSP: 0018:ffffc90000b2f918 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff8880b9941a60 RCX: ffffffff817cbe2a
RDX: ffff888013ed1dc0 RSI: ffffffff817cbe04 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffffed101732834d
R13: 0000000000000001 R14: ffff8880b983d8c0 R15: ffff8880b9941a68
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563022f9b680 CR3: 000000000cd77000 CR4: 0000000000350ef0
Call Trace:
rep_nop arch/x86/include/asm/vdso/processor.h:13 [inline]
cpu_relax arch/x86/include/asm/vdso/processor.h:18 [inline]
csd_lock_wait kernel/smp.c:311 [inline]
smp_call_function_many_cond+0x4d4/0x1570 kernel/smp.c:855
on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1023
on_each_cpu include/linux/smp.h:71 [inline]
text_poke_sync arch/x86/kernel/alternative.c:2006 [inline]
text_poke_bp_batch+0x83a/0x960 arch/x86/kernel/alternative.c:2216
text_poke_flush arch/x86/kernel/alternative.c:2407 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2404 [inline]
text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2414
arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146
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:242