INFO: task kworker/1:7:5182 blocked for more than 143 seconds.
Not tainted 6.7.0-syzkaller-10085-g1b1934dbbdcf #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:7 state:D stack:24736 pid:5182 tgid:5182 ppid:2 flags:0x00004000
Workqueue: usb_hub_wq hub_event
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf12/0x5c00 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0xe9/0x270 kernel/sched/core.c:6817
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:4725
hub_port_init+0x680/0x3820 drivers/usb/core/hub.c:4921
hub_port_connect drivers/usb/core/hub.c:5369 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
port_event drivers/usb/core/hub.c:5740 [inline]
hub_event+0x2b61/0x4e10 drivers/usb/core/hub.c:5822
process_one_work+0x886/0x15d0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2706 [inline]
worker_thread+0x8b9/0x1290 kernel/workqueue.c:2787
kthread+0x2c6/0x3a0 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
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d1aa3e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8d1aa3e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8d1aa3e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by getty/4806:
#0: ffff88802f0c20a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900015e02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc6/0x1490 drivers/tty/n_tty.c:2201
1 lock held by syz-fuzzer/5080:
4 locks held by syz-executor.2/5084:
1 lock held by syz-executor.0/5085:
3 locks held by syz-executor.5/5101:
5 locks held by kworker/1:7/5182:
#0: ffff8880176f7138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2608
#1: ffffc9000413fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2609
#2: ffff888022e31190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:992 [inline]
#2: ffff888022e31190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4e10 drivers/usb/core/hub.c:5768
#3: ffff888022e35510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3131 [inline]
#3: ffff888022e35510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5337 [inline]
#3: ffff888022e35510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
#3: ffff888022e35510 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5740 [inline]
#3: ffff888022e35510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x27fe/0x4e10 drivers/usb/core/hub.c:5822
#4: ffff888022cedd28 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5338 [inline]
#4: ffff888022cedd28 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5580 [inline]
#4: ffff888022cedd28 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5740 [inline]
#4: ffff888022cedd28 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x2827/0x4e10 drivers/usb/core/hub.c:5822
2 locks held by kworker/0:13/10738:
#0: ffff88801308a938 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x789/0x15d0 kernel/workqueue.c:2608
#1: ffffc900041efd80 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7eb/0x15d0 kernel/workqueue.c:2609
2 locks held by syz-executor.0/1474:
#0: ffff8880785f0e10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:802 [inline]
#0: ffff8880785f0e10 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x260 net/socket.c:658
#1: ffffffff8d1b5c38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8d1b5c38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x6b1/0x800 kernel/rcu/tree_exp.h:996
2 locks held by syz-executor.2/1484:
2 locks held by syz-executor.5/1485:
#0: ffff8880b993cc98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559
#1: ffff8880b9928e88 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2d9/0x900 kernel/sched/psi.c:988
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-10085-g1b1934dbbdcf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x277/0x390 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+0x2c6/0x3a0 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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 1490 Comm: syz-executor.2 Not tainted 6.7.0-syzkaller-10085-g1b1934dbbdcf #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:kasan_check_range+0x1a/0x190 mm/kasan/generic.c:188
Code: 41 5c 41 5d e9 07 9a b9 02 5b 5d 41 5c 41 5d c3 66 0f 1f 00 48 85 f6 0f 84 48 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 <53> 0f 82 c6 00 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 f8 0f 83
RSP: 0018:ffffc9001598f5e8 EFLAGS: 00000086
RAX: ffffffff9213af78 RBX: 00000000000001be RCX: ffffffff81666d0e
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9213af70
RBP: dffffc0000000000 R08: 0000000000000000 R09: fffffbfff24275e8
R10: ffffffff9213af47 R11: 0000000000000003 R12: 0000000000000000
R13: ffffed1003f7ec7f R14: ffff88801fbf6400 R15: 0000000000000004
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000206fc000 CR3: 0000000029f24000 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]
hlock_class+0x4e/0x130 kernel/locking/lockdep.c:228
check_wait_context kernel/locking/lockdep.c:4798 [inline]
__lock_acquire+0x5f0/0x3b30 kernel/locking/lockdep.c:5087
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1ae/0x520 kernel/locking/lockdep.c:5719
rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
rcu_read_lock include/linux/rcupdate.h:750 [inline]
pfn_valid include/linux/mmzone.h:2016 [inline]
page_table_check_clear mm/page_table_check.c:68 [inline]
__page_table_check_pte_clear+0x1af/0x5a0 mm/page_table_check.c:158
page_table_check_pte_clear include/linux/page_table_check.h:49 [inline]
ptep_get_and_clear_full arch/x86/include/asm/pgtable.h:1302 [inline]
zap_pte_range mm/memory.c:1452 [inline]
zap_pmd_range mm/memory.c:1597 [inline]
zap_pud_range mm/memory.c:1626 [inline]
zap_p4d_range mm/memory.c:1647 [inline]
unmap_page_range+0x1800/0x2b00 mm/memory.c:1668
unmap_single_vma+0x194/0x2b0 mm/memory.c:1714
unmap_vmas+0x22f/0x490 mm/memory.c:1758
exit_mmap+0x1c1/0xb50 mm/mmap.c:3277
__mmput+0x12a/0x4d0 kernel/fork.c:1343
mmput+0x62/0x70 kernel/fork.c:1365
exit_mm kernel/exit.c:569 [inline]
do_exit+0x9a5/0x2ad0 kernel/exit.c:858
do_group_exit+0xd4/0x2a0 kernel/exit.c:1020
__do_sys_exit_group kernel/exit.c:1031 [inline]
__se_sys_exit_group kernel/exit.c:1029 [inline]
__x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1029
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd3/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fa010e7cda9
Code: Unable to access opcode bytes at 0x7fa010e7cd7f.
RSP: 002b:00007fff67260c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007fa010e7cda9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000040 R09: 0000000000000000
R10: 0000001b31520000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001