rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 0-...D
 } 2658 jiffies s: 25805 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):

Sending NMI from CPU 1 to CPUs 0:
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:26800 pid:4963  tgid:4963  ppid:2547   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 4899 Comm: udevd Not tainted 6.12.0-rc1-syzkaller-00027-g4a9fe2a8ac53 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0010:io_serial_out+0x8f/0xb0 drivers/tty/serial/8250/8250_port.c:413
Code: 48 8d 7d 40 44 89 e1 48 b8 00 00 00 00 00 fc ff df 48 89 fa d3 e3 48 c1 ea 03 80 3c 02 00 75 1c 66 03 5d 40 44 89 e8 89 da ee <5b> 5d 41 5c 41 5d c3 cc cc cc cc e8 f1 eb 0d ff eb a0 e8 7a ec 0d
RSP: 0018:ffffc90000007108 EFLAGS: 00000002
RAX: 0000000000000036 RBX: 00000000000003f8 RCX: 0000000000000000
RDX: 00000000000003f8 RSI: ffffffff82a076c5 RDI: ffffffff936356a0
RBP: ffffffff93635660 R08: 0000000000000001 R09: 000000000000001f
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000036 R14: ffffffff82a07660 R15: 0000000000000000
FS:  00007fef0ca85c80(0000) GS:ffff8881f5800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b61c6cb458 CR3: 0000000117cc8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 serial_out drivers/tty/serial/8250/8250.h:142 [inline]
 serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3322 [inline]
 serial8250_console_write+0xf9e/0x17c0 drivers/tty/serial/8250/8250_port.c:3393
 console_emit_next_record kernel/printk/printk.c:3092 [inline]
 console_flush_all+0x800/0xc60 kernel/printk/printk.c:3180
 __console_flush_and_unlock kernel/printk/printk.c:3239 [inline]
 console_unlock+0xd9/0x210 kernel/printk/printk.c:3279
 vprintk_emit+0x424/0x6f0 kernel/printk/printk.c:2407
 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:68
 _printk+0xc8/0x100 kernel/printk/printk.c:2432
 printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline]
 show_trace_log_lvl+0x1b7/0x3d0 arch/x86/kernel/dumpstack.c:285
 sched_show_task kernel/sched/core.c:7582 [inline]
 sched_show_task+0x3f0/0x5f0 kernel/sched/core.c:7557
 show_state_filter+0xee/0x320 kernel/sched/core.c:7627
 k_spec drivers/tty/vt/keyboard.c:667 [inline]
 k_spec+0xed/0x150 drivers/tty/vt/keyboard.c:656
 kbd_keycode drivers/tty/vt/keyboard.c:1522 [inline]
 kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1541
 input_handler_events_default+0x116/0x1b0 drivers/input/input.c:2549
 input_pass_values+0x777/0x8e0 drivers/input/input.c:126
 input_event_dispose drivers/input/input.c:341 [inline]
 input_handle_event+0xf0b/0x14d0 drivers/input/input.c:369
 input_event drivers/input/input.c:398 [inline]
 input_event+0x83/0xa0 drivers/input/input.c:390
 input_sync include/linux/input.h:451 [inline]
 hidinput_report_event+0xb2/0x100 drivers/hid/hid-input.c:1736
 hid_report_raw_event+0x274/0x11c0 drivers/hid/hid-core.c:2047
 __hid_input_report.constprop.0+0x341/0x440 drivers/hid/hid-core.c:2110
 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:285
 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
 dummy_timer+0x17c3/0x38d0 drivers/usb/gadget/udc/dummy_hcd.c:1988
 __run_hrtimer kernel/time/hrtimer.c:1691 [inline]
 __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1755
 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1772
 handle_softirqs+0x206/0x8d0 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:1037 [inline]
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1037
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_acquire.part.0+0x155/0x380 kernel/locking/lockdep.c:5790
Code: b8 ff ff ff ff 65 0f c1 05 80 31 cf 7e 83 f8 01 0f 85 d0 01 00 00 9c 58 f6 c4 02 0f 85 e5 01 00 00 48 85 ed 0f 85 b6 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7
RSP: 0018:ffffc9000150f760 EFLAGS: 00000206
RAX: 0000000000000046 RBX: 1ffff920002a1eed RCX: 0000000000000001
RDX: 0000000000000001 RSI: ffffffff8727f4c0 RDI: ffffffff8746eac0
RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff1f55db6
R10: ffffffff8faaedb7 R11: 0000000000000000 R12: 0000000000000000
R13: ffffffff8905a340 R14: 0000000000000000 R15: 0000000000000000
 fs_reclaim_acquire mm/page_alloc.c:3851 [inline]
 fs_reclaim_acquire+0xca/0x160 mm/page_alloc.c:3842
 might_alloc include/linux/sched/mm.h:327 [inline]
 slab_pre_alloc_hook mm/slub.c:4037 [inline]
 slab_alloc_node mm/slub.c:4115 [inline]
 __do_kmalloc_node mm/slub.c:4264 [inline]
 __kmalloc_node_track_caller_noprof+0xb5/0x3e0 mm/slub.c:4284
 kvasprintf+0xbd/0x160 lib/kasprintf.c:25
 kasprintf+0xc8/0x100 lib/kasprintf.c:59
 device_get_devnode+0xb2/0x2c0 drivers/base/core.c:3959
 dev_uevent+0x513/0x8f0 drivers/base/core.c:2650
 uevent_show+0x1c7/0x390 drivers/base/core.c:2742
 dev_attr_show+0x53/0xe0 drivers/base/core.c:2431
 sysfs_kf_seq_show+0x23e/0x410 fs/sysfs/file.c:59
 seq_read_iter+0x4f4/0x12b0 fs/seq_file.c:230
 kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
 new_sync_read fs/read_write.c:488 [inline]
 vfs_read+0x86e/0xbd0 fs/read_write.c:569
 ksys_read+0x12f/0x260 fs/read_write.c:712
 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: 0033:0x7fef0cbb0b6a
Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffed3bc0768 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055b61c6bb500 RCX: 00007fef0cbb0b6a
RDX: 0000000000001000 RSI: 000055b61c6c9430 RDI: 0000000000000008
RBP: 000055b61c6bb500 R08: 0000000000000008 R09: 0000000000001000
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000003fff R14: 00007ffed3bc0c48 R15: 000000000000000a
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ep_poll fs/eventpoll.c:2062 [inline]
 do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7fef0cbbd457
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007ffed3bc9198 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Cannot schedule work
 ORIG_RAX: 00000000000000e8
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fef0cbbd457
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 0000000000000004 RSI: 00007ffed3bc91d8 RDI: 0000000000000004
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 000055b61c6b4810 R08: 0000000000000007 R09: a3ffa7649fc79639
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055b61c7187c0
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 00007ffed3bc91d8 R14: 00000000ffffffff R15: 000055b61c6882c0
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:kworker/0:5     state:R
cdc_wdm 5-1:1.0: Stall on int endpoint
  running task     stack:21408 pid:4996  tgid:4996  ppid:2      flags:0x00004000
cdc_wdm 5-1:1.0: Stall on int endpoint
Workqueue:  0x0
cdc_wdm 5-1:1.0: Stall on int endpoint
 (events)
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:kworker/1:6     state:I
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:21152 pid:5106  tgid:5106  ppid:2      flags:0x00004000
cdc_wdm 5-1:1.0: Stall on int endpoint
Workqueue:  0x0
cdc_wdm 5-1:1.0: Stall on int endpoint
 (events)
cdc_wdm 5-1:1.0: Cannot schedule work
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:kworker/0:6     state:I
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:22112 pid:5183  tgid:5183  ppid:2      flags:0x00004000
cdc_wdm 5-1:1.0: Stall on int endpoint
Workqueue:  0x0
cdc_wdm 5-1:1.0: Stall on int endpoint
 (usb_hub_wq)
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:udevd           state:S
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:27472 pid:5247  tgid:5247  ppid:2547   flags:0x00000002
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Cannot schedule work
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ep_poll fs/eventpoll.c:2062 [inline]
 do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7fef0cbbd457
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007ffed3bc9198 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 00000000000000e8
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fef0cbbd457
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 0000000000000004 RSI: 00007ffed3bc91d8 RDI: 0000000000000004
RBP: 000055b61c6ec1a0 R08: 0000000000000007 R09: a3ffa7649fc79639
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055b61c6c1bf0
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 00007ffed3bc91d8 R14: 00000000ffffffff R15: 000055b61c6882c0
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:udevd           state:S
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:24064 pid:5250  tgid:5250  ppid:2547   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ep_poll fs/eventpoll.c:2062 [inline]
 do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7fef0cbbd457
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007ffed3bc9198 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 00000000000000e8
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fef0cbbd457
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 0000000000000004 RSI: 00007ffed3bc91d8 RDI: 0000000000000004
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 000055b61c6ddfd0 R08: 0000000000000007 R09: a3ffa7649fc79639
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055b61c71cd20
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 00007ffed3bc91d8 R14: 00000000ffffffff R15: 000055b61c6882c0
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:kworker/0:7     state:D
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:22560 pid:6695  tgid:6695  ppid:2      flags:0x00004000
cdc_wdm 5-1:1.0: Stall on int endpoint
Workqueue: usb_hub_wq hub_event
cdc_wdm 5-1:1.0: Stall on int endpoint

Call Trace:
cdc_wdm 5-1:1.0: Stall on int endpoint
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2615
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 schedule_timeout_uninterruptible kernel/time/timer.c:2649 [inline]
 msleep+0x9b/0xd0 kernel/time/timer.c:2770
cdc_wdm 5-1:1.0: Stall on int endpoint
 hub_port_reset+0x497/0x1e60 drivers/usb/core/hub.c:3119
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 hub_port_init+0x73e/0x3ab0 drivers/usb/core/hub.c:5010
cdc_wdm 5-1:1.0: Cannot schedule work
 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+0x2c16/0x4f40 drivers/usb/core/hub.c:5903
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
cdc_wdm 5-1:1.0: Stall on int endpoint
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:kworker/u8:0    state:I
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:23536 pid:6886  tgid:6886  ppid:2      flags:0x00004000
cdc_wdm 5-1:1.0: Stall on int endpoint
Workqueue:  0x0
cdc_wdm 5-1:1.0: Stall on int endpoint
 (events_unbound)
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Cannot schedule work
task:udevd           state:S
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:28384 pid:7007  tgid:7007  ppid:2547   flags:0x00000002
cdc_wdm 5-1:1.0: Cannot schedule work
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Cannot schedule work
 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 ep_poll fs/eventpoll.c:2062 [inline]
 do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7fef0cbbd457
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007ffed3bc9198 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fef0cbbd457
RDX: 0000000000000004 RSI: 00007ffed3bc91d8 RDI: 0000000000000004
RBP: 000055b61c694930 R08: 0000000000000007 R09: a3ffa7649fc79639
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055b61c6a6ff0
R13: 00007ffed3bc91d8 R14: 00000000ffffffff R15: 000055b61c6882c0
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:udevd           state:S
 stack:27280 pid:7008  tgid:7008  ppid:2547   flags:0x00000002
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 schedule_hrtimeout_range_clock+0x369/0x3b0 kernel/time/hrtimer.c:2272
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ep_poll fs/eventpoll.c:2062 [inline]
 do_epoll_wait+0x139b/0x1a90 fs/eventpoll.c:2459
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __do_sys_epoll_wait fs/eventpoll.c:2471 [inline]
 __se_sys_epoll_wait fs/eventpoll.c:2466 [inline]
 __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2466
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7fef0cbbd457
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007ffed3bc9198 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 00000000000000e8
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fef0cbbd457
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 0000000000000004 RSI: 00007ffed3bc91d8 RDI: 0000000000000004
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 000055b61c6cda00 R08: 0000000000000007 R09: a3ffa7649fc79639
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 00000000ffffffff R11: 0000000000000246 R12: 000055b61c71ab80
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 00007ffed3bc91d8 R14: 00000000ffffffff R15: 000055b61c6882c0
cdc_wdm 5-1:1.0: Cannot schedule work
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:kworker/1:0     state:R
cdc_wdm 5-1:1.0: Stall on int endpoint
  running task     stack:22480 pid:9955  tgid:9955  ppid:2      flags:0x00004000
cdc_wdm 5-1:1.0: Stall on int endpoint
Workqueue: events dvb_usb_read_remote_control
cdc_wdm 5-1:1.0: Cannot schedule work

Call Trace:
cdc_wdm 5-1:1.0: Stall on int endpoint
 <TASK>
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6854
cdc_wdm 5-1:1.0: Stall on int endpoint
 __cond_resched+0x1b/0x30 kernel/sched/core.c:7192
cdc_wdm 5-1:1.0: Stall on int endpoint
 _cond_resched include/linux/sched.h:2031 [inline]
 process_one_work+0xbc5/0x1ba0 kernel/workqueue.c:3262
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 process_scheduled_works kernel/workqueue.c:3310 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:kworker/0:4     state:I
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:22512 pid:10458 tgid:10458 ppid:2      flags:0x00004000
cdc_wdm 5-1:1.0: Stall on int endpoint
Workqueue:  0x0
cdc_wdm 5-1:1.0: Stall on int endpoint
 (events)
cdc_wdm 5-1:1.0: Cannot schedule work
Call Trace:
cdc_wdm 5-1:1.0: Stall on int endpoint
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
task:kworker/1:7     state:I
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:30176 pid:11321 tgid:11321 ppid:2      flags:0x00004000
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
cdc_wdm 5-1:1.0: Stall on int endpoint
 <TASK>
cdc_wdm 5-1:1.0: Cannot schedule work
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 worker_thread+0x2de/0xf00 kernel/workqueue.c:3406
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
cdc_wdm 5-1:1.0: Cannot schedule work
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:syz.4.2054      state:R
cdc_wdm 5-1:1.0: Stall on int endpoint
  running task     stack:25408 pid:11870 tgid:11870 ppid:2648   flags:0x00004002
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 exit_to_user_mode_loop kernel/entry/common.c:102 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 irqentry_exit_to_user_mode+0xdb/0x240 kernel/entry/common.c:231
cdc_wdm 5-1:1.0: Stall on int endpoint
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7ff91c50ca7a
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007fff8b0c9ec0 EFLAGS: 00000202
cdc_wdm 5-1:1.0: Stall on int endpoint

RAX: ffffffff8124387a RBX: 00007ff91d315720 RCX: ffffffff81243edf
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 00007ff91b2f82a0 RSI: ffffffff81243edf RDI: 00007ff91b2a9000
cdc_wdm 5-1:1.0: Cannot schedule work
RBP: 0000000000000000 R08: 00007ff91c7d0000 R09: ffffffff812438d9
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 0000000081243ee3 R11: 00000000000000ff R12: ffffffff8124387a
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 00007ff91c7e5f40 R14: 0000000000000008 R15: 0000000000009e54
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:syz.4.2054      state:D
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:28384 pid:11871 tgid:11870 ppid:2648   flags:0x00004002
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 exp_funnel_lock+0x344/0x3b0 kernel/rcu/tree_exp.h:320
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 module_remove_driver+0x2e/0x260 drivers/base/module.c:106
 bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
cdc_wdm 5-1:1.0: Stall on int endpoint
 driver_unregister+0x76/0xb0 drivers/base/driver.c:274
 usb_gadget_register_driver_owner+0x1da/0x2f0 drivers/usb/gadget/udc/core.c:1721
 raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline]
 raw_ioctl+0x1731/0x2b90 drivers/usb/gadget/legacy/raw_gadget.c:1306
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __x64_sys_ioctl+0x18f/0x220 fs/ioctl.c:893
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Cannot schedule work
RIP: 0033:0x7ff91c62dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007ff91b2a4f10 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 0000000000000010
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007ff91c62dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000006
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 00007ff91b2a5fe0 R08: 0000000000000000 R09: 00342e6364755f79
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 00007ff91b2a4fb0 R14: 0000000020000000 R15: 00007ff91c911c58
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:syz.4.2054      state:D
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:28224 pid:11882 tgid:11870 ppid:2648   flags:0x00000000
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 synchronize_rcu_expedited+0x392/0x450 kernel/rcu/tree_exp.h:991
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 module_remove_driver+0x2e/0x260 drivers/base/module.c:106
cdc_wdm 5-1:1.0: Stall on int endpoint
 bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
cdc_wdm 5-1:1.0: Stall on int endpoint
 driver_unregister+0x76/0xb0 drivers/base/driver.c:274
cdc_wdm 5-1:1.0: Stall on int endpoint
 usb_gadget_register_driver_owner+0x1da/0x2f0 drivers/usb/gadget/udc/core.c:1721
cdc_wdm 5-1:1.0: Stall on int endpoint
 raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline]
 raw_ioctl+0x1731/0x2b90 drivers/usb/gadget/legacy/raw_gadget.c:1306
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __x64_sys_ioctl+0x18f/0x220 fs/ioctl.c:893
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7ff91c62dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007ff91b283f10 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 0000000000000010
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff91c62dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000004
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 00007ff91b284fe0 R08: 0000000000000000 R09: 00342e6364755f79
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 00007ff91b283fb0 R14: 00000000200009c0 R15: 00007ff91c9113f0
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:syz.4.2054      state:S
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:28384 pid:11883 tgid:11870 ppid:2648   flags:0x00000000
cdc_wdm 5-1:1.0: Cannot schedule work
Call Trace:
cdc_wdm 5-1:1.0: Stall on int endpoint
 <TASK>
cdc_wdm 5-1:1.0: Cannot schedule work
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370
cdc_wdm 5-1:1.0: Stall on int endpoint
 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex kernel/futex/syscalls.c:160 [inline]
 __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7ff91c62dff9
cdc_wdm 5-1:1.0: Cannot schedule work
RSP: 002b:00007ff91b2650e8 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 00000000000000ca
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: ffffffffffffffda RBX: 00007ff91c7e6138 RCX: 00007ff91c62dff9
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff91c7e6138
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 00007ff91c7e6130 R08: 0000000000000000 R09: 0000000000000000
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff91c7e613c
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 0000000000000000 R14: 00007fff8b0c9d90 R15: 00007fff8b0c9e78
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:syz.4.2054      state:S
cdc_wdm 5-1:1.0: Cannot schedule work
 stack:28384 pid:11884 tgid:11870 ppid:2648   flags:0x00000000
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Cannot schedule work
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370
cdc_wdm 5-1:1.0: Stall on int endpoint
 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __do_sys_futex kernel/futex/syscalls.c:179 [inline]
 __se_sys_futex kernel/futex/syscalls.c:160 [inline]
 __x64_sys_futex+0x1e1/0x4c0 kernel/futex/syscalls.c:160
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7ff91c62dff9
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007ff91b0420e8 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 00000000000000ca
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: ffffffffffffffda RBX: 00007ff91c7e6210 RCX: 00007ff91c62dff9
cdc_wdm 5-1:1.0: Cannot schedule work
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff91c7e6210
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 00007ff91c7e6208 R08: 0000000000000000 R09: 0000000000000000
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff91c7e6214
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 0000000000000000 R14: 00007fff8b0c9d90 R15: 00007fff8b0c9e78
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:syz.1.2055      state:D
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:27856 pid:11873 tgid:11872 ppid:2649   flags:0x00004006
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6824
cdc_wdm 5-1:1.0: Stall on int endpoint
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:329
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 module_remove_driver+0x2e/0x260 drivers/base/module.c:106
cdc_wdm 5-1:1.0: Cannot schedule work
 bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
cdc_wdm 5-1:1.0: Stall on int endpoint
 driver_unregister+0x76/0xb0 drivers/base/driver.c:274
cdc_wdm 5-1:1.0: Cannot schedule work
 usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1731
cdc_wdm 5-1:1.0: Stall on int endpoint
 raw_release+0x1ae/0x2b0 drivers/usb/gadget/legacy/raw_gadget.c:462
cdc_wdm 5-1:1.0: Stall on int endpoint
 __fput+0x3f6/0xb60 fs/file_table.c:431
cdc_wdm 5-1:1.0: Stall on int endpoint
 task_work_run+0x14e/0x250 kernel/task_work.c:228
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xadd/0x2ce0 kernel/exit.c:939
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
cdc_wdm 5-1:1.0: Stall on int endpoint
 get_signal+0x25fb/0x2770 kernel/signal.c:2917
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7f2ffde8dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007f2ffcafef10 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 0000000000000010
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007f2ffde8dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 00007f2ffcafffe0 RSI: 0000000080085502 RDI: 0000000000000003
cdc_wdm 5-1:1.0: Cannot schedule work
RBP: 00007f2ffcafffe0 R08: 0000000000000080 R09: 00007f2ffcafefd8
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 0000000800000000 R14: 0000000000000012 R15: 00007f2ffdf0a273
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:syz.2.2057      state:D
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:27856 pid:11877 tgid:11876 ppid:2653   flags:0x00004006
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 exp_funnel_lock+0x344/0x3b0 kernel/rcu/tree_exp.h:320
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 evdev_detach_client drivers/input/evdev.c:377 [inline]
 evdev_release+0x23f/0x400 drivers/input/evdev.c:440
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __fput+0x3f6/0xb60 fs/file_table.c:431
cdc_wdm 5-1:1.0: Stall on int endpoint
 task_work_run+0x14e/0x250 kernel/task_work.c:228
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xadd/0x2ce0 kernel/exit.c:939
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
 get_signal+0x25fb/0x2770 kernel/signal.c:2917
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
cdc_wdm 5-1:1.0: Cannot schedule work
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7fcfba00dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007fcfb8c7ff70 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 0000000000000010
cdc_wdm 5-1:1.0: Stall on int endpoint
RAX: fffffffffffffffc RBX: 00000000ffffff75 RCX: 00007fcfba00dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 00007fcfb8c7fff0 RSI: 0000000040085507 RDI: 0000000000000003
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 0000000000000003 R08: 00007fcfba2f0320 R09: 0000000000000000
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 0000000000000003 R11: 0000000000000246 R12: 00000000200002c0
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 0000000000000000 R14: 00007fcfba1c5f80 R15: 00007fffc0749a98
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
task:syz.3.2058      state:D
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:27856 pid:11879 tgid:11878 ppid:2656   flags:0x00004006
cdc_wdm 5-1:1.0: Stall on int endpoint
Call Trace:
 <TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 exp_funnel_lock+0x344/0x3b0 kernel/rcu/tree_exp.h:320
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 module_remove_driver+0x2e/0x260 drivers/base/module.c:106
cdc_wdm 5-1:1.0: Stall on int endpoint
 bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
cdc_wdm 5-1:1.0: Stall on int endpoint
 driver_unregister+0x76/0xb0 drivers/base/driver.c:274
cdc_wdm 5-1:1.0: Stall on int endpoint
 usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1731
cdc_wdm 5-1:1.0: Stall on int endpoint
 raw_release+0x1ae/0x2b0 drivers/usb/gadget/legacy/raw_gadget.c:462
cdc_wdm 5-1:1.0: Stall on int endpoint
 __fput+0x3f6/0xb60 fs/file_table.c:431
cdc_wdm 5-1:1.0: Stall on int endpoint
 task_work_run+0x14e/0x250 kernel/task_work.c:228
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xadd/0x2ce0 kernel/exit.c:939
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
cdc_wdm 5-1:1.0: Stall on int endpoint
 get_signal+0x25fb/0x2770 kernel/signal.c:2917
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
cdc_wdm 5-1:1.0: Cannot schedule work
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7ff634f3dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RSP: 002b:00007ff633bb4f60 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 0000000000000010
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007ff634f3dbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 00007ff633bb5ff0 RSI: 0000000080085502 RDI: 0000000000000003
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 00007ff634fb0296 R08: 0000000000000000 R09: 0000000000000000
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000020000280
R13: 00000000200000c0 R14: 00007ff6350f5f80 R15: 00007ffea56eff28
 </TASK>
task:syz.0.2059      state:D
cdc_wdm 5-1:1.0: Stall on int endpoint
 stack:28000 pid:11881 tgid:11880 ppid:2650   flags:0x00004006
Call Trace:
cdc_wdm 5-1:1.0: Stall on int endpoint
 <TASK>
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x105f/0x34b0 kernel/sched/core.c:6675
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6767
cdc_wdm 5-1:1.0: Stall on int endpoint
 exp_funnel_lock+0x344/0x3b0 kernel/rcu/tree_exp.h:320
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:976
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 module_remove_driver+0x2e/0x260 drivers/base/module.c:106
cdc_wdm 5-1:1.0: Stall on int endpoint
 bus_remove_driver+0x143/0x2c0 drivers/base/bus.c:745
cdc_wdm 5-1:1.0: Stall on int endpoint
 driver_unregister+0x76/0xb0 drivers/base/driver.c:274
cdc_wdm 5-1:1.0: Stall on int endpoint
 usb_gadget_unregister_driver+0x49/0x70 drivers/usb/gadget/udc/core.c:1731
cdc_wdm 5-1:1.0: Stall on int endpoint
 raw_release+0x1ae/0x2b0 drivers/usb/gadget/legacy/raw_gadget.c:462
cdc_wdm 5-1:1.0: Stall on int endpoint
 __fput+0x3f6/0xb60 fs/file_table.c:431
cdc_wdm 5-1:1.0: Stall on int endpoint
 task_work_run+0x14e/0x250 kernel/task_work.c:228
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xadd/0x2ce0 kernel/exit.c:939
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1088
cdc_wdm 5-1:1.0: Stall on int endpoint
 get_signal+0x25fb/0x2770 kernel/signal.c:2917
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
cdc_wdm 5-1:1.0: Cannot schedule work
cdc_wdm 5-1:1.0: Stall on int endpoint
cdc_wdm 5-1:1.0: Stall on int endpoint
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x147/0x260 kernel/entry/common.c:218
cdc_wdm 5-1:1.0: Stall on int endpoint
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
cdc_wdm 5-1:1.0: Stall on int endpoint
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
cdc_wdm 5-1:1.0: Stall on int endpoint
RIP: 0033:0x7fc7bc3fdbfb
cdc_wdm 5-1:1.0: Cannot schedule work
RSP: 002b:00007fc7bb074f10 EFLAGS: 00000246
cdc_wdm 5-1:1.0: Stall on int endpoint
 ORIG_RAX: 0000000000000010
cdc_wdm 5-1:1.0: Cannot schedule work
RAX: fffffffffffffffc RBX: 0000000000000003 RCX: 00007fc7bc3fdbfb
cdc_wdm 5-1:1.0: Stall on int endpoint
RDX: 00007fc7bb075fe0 RSI: 0000000080085502 RDI: 0000000000000003
cdc_wdm 5-1:1.0: Stall on int endpoint
RBP: 00007fc7bb075fe0 R08: 0000000000000080 R09: 00007fc7bb074fd8
cdc_wdm 5-1:1.0: Stall on int endpoint
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502
cdc_wdm 5-1:1.0: Stall on int endpoint
R13: 0000000800000000 R14: 0000000000000012 R15: 00007fc7bc47a273
cdc_wdm 5-1:1.0: Stall on int endpoint
 </TASK>
cdc_wdm 5-1:1.0: Stall on int endpoint

Showing all locks held in the system:
5 locks held by kworker/1:2/801:
cdc_wdm 5-1:1.0: Cannot schedule work
3 locks held by kworker/u8:6/1500:
cdc_wdm 5-1:1.0: Stall on int endpoint
2 locks held by getty/2605:
cdc_wdm 5-1:1.0: Stall on int endpoint
 #0: ffff888100eac0a0
cdc_wdm 5-1:1.0: Stall on int endpoint
 (&tty->ldisc_sem
cdc_wdm 5-1:1.0: Stall on int endpoint
){++++}-{0:0}
cdc_wdm 5-1:1.0: Stall on int endpoint
, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
cdc_wdm 5-1:1.0: Stall on int endpoint
 #1: ffffc900000432f0
cdc_wdm 5-1:1.0: Stall on int endpoint
 (&ldata->atomic_read_lock
cdc_wdm 5-1:1.0: Stall on int endpoint
){+.+.}-{3:3}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
cdc_wdm 5-1:1.0: Stall on int endpoint
9 locks held by udevd/4899:
 #0: ffff88811f6d69e0 (
cdc_wdm 5-1:1.0: Stall on int endpoint
&p->lock){+.+.}-{3:3}
, at: seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182
 #1: ffff88811f284088
cdc_wdm 5-1:1.0: Stall on int endpoint
 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
cdc_wdm 5-1:1.0: Stall on int endpoint
 #2: ffff888118989b48
cdc_wdm 5-1:1.0: Stall on int endpoint
 (kn->active
cdc_wdm 5-1:1.0: Stall on int endpoint
){++++}-{0:0}
cdc_wdm 5-1:1.0: Stall on int endpoint
, at: kernfs_seq_start+0x71/0x240 fs/kernfs/file.c:155
cdc_wdm 5-1:1.0: Cannot schedule work
 #3: ffffffff8903e500
cdc_wdm 5-1:1.0: Stall on int endpoint
 (fs_reclaim
cdc_wdm 5-1:1.0: Stall on int endpoint
){+.+.}-{0:0}
cdc_wdm 5-1:1.0: Stall on int endpoint
, at: might_alloc include/linux/sched/mm.h:327 [inline]
, at: slab_pre_alloc_hook mm/slub.c:4037 [inline]
, at: slab_alloc_node mm/slub.c:4115 [inline]
, at: __do_kmalloc_node mm/slub.c:4264 [inline]
, at: __kmalloc_node_track_caller_noprof+0xb5/0x3e0 mm/slub.c:4284
cdc_wdm 5-1:1.0: Stall on int endpoint
 #4: ffffffff8905a340
cdc_wdm 5-1:1.0: Stall on int endpoint
 (mmu_notifier_invalidate_range_start
cdc_wdm 5-1:1.0: Stall on int endpoint
){+.+.}-{0:0}
cdc_wdm 5-1:1.0: Cannot schedule work
, at: fs_reclaim_acquire mm/page_alloc.c:3851 [inline]
, at: fs_reclaim_acquire+0xae/0x160 mm/page_alloc.c:3842
cdc_wdm 5-1:1.0: Stall on int endpoint
 #5: ffff88811cd1c230
cdc_wdm 5-1:1.0: Stall on int endpoint
 (&dev->event_lock
cdc_wdm 5-1:1.0: Stall on int endpoint
){..-.}-{2:2}
cdc_wdm 5-1:1.0: Stall on int endpoint
, at: input_event drivers/input/input.c:397 [inline]
, at: input_event+0x70/0xa0 drivers/input/input.c:390
cdc_wdm 5-1:1.0: Stall on int endpoint
 #6: ffffffff88ebb100
cdc_wdm 5-1:1.0: Stall on int endpoint
 (rcu_read_lock
cdc_wdm 5-1:1.0: Stall on int endpoint
){....}-{1:2}
cdc_wdm 5-1:1.0: Stall on int endpoint
, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
, at: input_pass_values+0x8b/0x8e0 drivers/input/input.c:118
cdc_wdm 5-1:1.0: Stall on int endpoint
 #7: ffffffff89387ad8
cdc_wdm 5-1:1.0: Stall on int endpoint