rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2685 jiffies s: 1609 root: 0x1/. rcu: blocking rcu_node structures (internal RCU debug): Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5548 Comm: syz-executor.2 Not tainted 6.10.0-rc4-syzkaller-00053-g819984a0dd36 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 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 d1 90 0b ff eb a0 e8 5a 91 0b RSP: 0000:ffffc9000c4eef10 EFLAGS: 00000002 RAX: 0000000000000038 RBX: 00000000000003f8 RCX: 0000000000000000 RDX: 00000000000003f8 RSI: ffffffff829a0e85 RDI: ffffffff8d719be0 RBP: ffffffff8d719ba0 R08: 0000000000000001 R09: 000000000000001f R10: 0000000000000000 R11: 0000000000000007 R12: 0000000000000000 R13: 0000000000000038 R14: ffffffff829a0e20 R15: 0000000000000000 FS: 000055555b984480(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3162d000 CR3: 000000011ce74000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: serial_out drivers/tty/serial/8250/8250.h:122 [inline] serial8250_console_fifo_write drivers/tty/serial/8250/8250_port.c:3322 [inline] serial8250_console_write+0xce7/0x1090 drivers/tty/serial/8250/8250_port.c:3393 console_emit_next_record kernel/printk/printk.c:2928 [inline] console_flush_all+0x53c/0xd70 kernel/printk/printk.c:2994 console_unlock+0xae/0x290 kernel/printk/printk.c:3063 vprintk_emit kernel/printk/printk.c:2345 [inline] vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2300 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45 _printk+0xc8/0x100 kernel/printk/printk.c:2370 printk_stack_address arch/x86/kernel/dumpstack.c:72 [inline] show_trace_log_lvl+0x211/0x500 arch/x86/kernel/dumpstack.c:285 sched_show_task kernel/sched/core.c:9191 [inline] sched_show_task+0x42e/0x650 kernel/sched/core.c:9165 show_state_filter+0xee/0x320 kernel/sched/core.c:9236 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:1524 [inline] kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1543 input_to_handler+0x38f/0x4d0 drivers/input/input.c:132 input_pass_values+0x5c9/0x840 drivers/input/input.c:161 input_event_dispose+0x508/0x630 drivers/input/input.c:389 input_handle_event+0x11c/0xd80 drivers/input/input.c:406 input_event drivers/input/input.c:435 [inline] input_event+0x83/0xa0 drivers/input/input.c:427 hidinput_hid_event+0xa12/0x2410 drivers/hid/hid-input.c:1746 hid_process_event+0x4b7/0x5e0 drivers/hid/hid-core.c:1540 hid_input_array_field+0x535/0x710 drivers/hid/hid-core.c:1652 hid_process_report drivers/hid/hid-core.c:1694 [inline] hid_report_raw_event+0xa02/0x11c0 drivers/hid/hid-core.c:2015 hid_input_report+0x345/0x440 drivers/hid/hid-core.c:2089 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:284 __usb_hcd_giveback_urb+0x466/0x6e0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734 dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0033:0x7fe39c57de35 Code: 85 e5 fe ff ff 0f b6 5c 24 0b 44 89 f2 45 89 f2 45 8d 5e 04 44 89 f0 48 8d 3d d7 71 16 00 89 c6 81 e6 ff 1f 00 00 48 8b 0c f7 <4c> 39 d1 0f 84 c7 fe ff ff 48 85 c9 0f 84 d9 00 00 00 83 c0 01 44 RSP: 002b:00007ffc06509230 EFLAGS: 00000206 RAX: 000000008115397b RBX: 0000000000000001 RCX: 000000008115397b RDX: 000000008115397b RSI: 000000000000197b RDI: 00007fe39c6e5000 RBP: 00007fe39bf44008 R08: 0000001b31a20000 R09: 0000000000000000 R10: 000000008115397b R11: 000000008115397f R12: 00000000000046f8 R13: ffffffff811539b8 R14: ffffffff8115397b R15: 00007fe39c6f9018 __do_sys_epoll_wait fs/eventpoll.c:2476 [inline] __se_sys_epoll_wait fs/eventpoll.c:2471 [inline] __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2471 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: 0033:0x7f6bf656a457 RSP: 002b:00007ffe2b9179a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6bf656a457 RDX: 0000000000000004 RSI: 00007ffe2b9179e8 RDI: 0000000000000004 RBP: 0000559e5abbfa80 R08: 0000000000000007 R09: a7f215d4e3c3fde7 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000559e5abdace0 R13: 00007ffe2b9179e8 R14: 00000000ffffffff R15: 0000559e5abb5910 task:kworker/1:4 state:I stack:20432 pid:4801 tgid:4801 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 worker_thread+0x2de/0xf70 kernel/workqueue.c:3408 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 task:kworker/1:5 state:I stack:22656 pid:4806 tgid:4806 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 worker_thread+0x2de/0xf70 kernel/workqueue.c:3408 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 task:kworker/0:3 state:I stack:21392 pid:4807 tgid:4807 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 worker_thread+0x2de/0xf70 kernel/workqueue.c:3408 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 task:udevd state:S stack:26512 pid:4808 tgid:4808 ppid:2401 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_hrtimeout_range_clock+0x3c7/0x430 kernel/time/hrtimer.c:2273 ep_poll fs/eventpoll.c:2062 [inline] do_epoll_wait+0x13d4/0x1ae0 fs/eventpoll.c:2464 __do_sys_epoll_wait fs/eventpoll.c:2476 [inline] __se_sys_epoll_wait fs/eventpoll.c:2471 [inline] __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2471 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: 0033:0x7f6bf656a457 RSP: 002b:00007ffe2b9179a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6bf656a457 RDX: 0000000000000004 RSI: 00007ffe2b9179e8 RDI: 0000000000000004 RBP: 0000559e5abc9230 R08: 0000000000000007 R09: a7f215d4e3c3fde7 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000559e5abe9ad0 R13: 00007ffe2b9179e8 R14: 00000000ffffffff R15: 0000559e5abb5910 task:udevd state:S stack:26416 pid:4809 tgid:4809 ppid:2401 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_hrtimeout_range_clock+0x3c7/0x430 kernel/time/hrtimer.c:2273 ep_poll fs/eventpoll.c:2062 [inline] do_epoll_wait+0x13d4/0x1ae0 fs/eventpoll.c:2464 __do_sys_epoll_wait fs/eventpoll.c:2476 [inline] __se_sys_epoll_wait fs/eventpoll.c:2471 [inline] __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2471 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: 0033:0x7f6bf656a457 RSP: 002b:00007ffe2b9179a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6bf656a457 RDX: 0000000000000004 RSI: 00007ffe2b9179e8 RDI: 0000000000000004 RBP: 0000559e5abbd600 R08: 0000000000000007 R09: a7f215d4e3c3fde7 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000559e5abda1c0 R13: 00007ffe2b9179e8 R14: 00000000ffffffff R15: 0000559e5abb5910 task:kworker/0:4 state:D stack:21224 pid:4812 tgid:4812 ppid:2 flags:0x00004000 Workqueue: usb_hub_wq hub_event Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 usb_lock_port drivers/usb/core/hub.c:3206 [inline] hub_event+0x5c4/0x4f50 drivers/usb/core/hub.c:5902 process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf70 kernel/workqueue.c:3393 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 task:udevd state:D stack:25744 pid:4862 tgid:4862 ppid:2401 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:323 synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:939 evdev_detach_client drivers/input/evdev.c:386 [inline] evdev_release+0x245/0x400 drivers/input/evdev.c:449 __fput+0x408/0xbb0 fs/file_table.c:422 __fput_sync+0x47/0x50 fs/file_table.c:507 __do_sys_close fs/open.c:1555 [inline] __se_sys_close fs/open.c:1540 [inline] __x64_sys_close+0x86/0x100 fs/open.c:1540 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: 0033:0x7f6bf655e0a8 RSP: 002b:00007ffe2b912638 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 00007f6bf6432ae0 RCX: 00007f6bf655e0a8 RDX: fffffffffffffe60 RSI: 0000000080184540 RDI: 0000000000000008 RBP: 0000559e5abbcd30 R08: 00000000ffffffff R09: fffffffffffffe98 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000016 R13: 00007ffe2b9127c8 R14: 0000000000000000 R15: 0000559e4077bed5 task:kworker/0:5 state:I stack:29696 pid:4865 tgid:4865 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 worker_thread+0x2de/0xf70 kernel/workqueue.c:3408 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 task:kworker/1:2H state:I stack:29008 pid:4956 tgid:4956 ppid:2 flags:0x00004000 Workqueue: 0x0 (kblockd) Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 worker_thread+0x2de/0xf70 kernel/workqueue.c:3408 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 task:kworker/0:6 state:I stack:29056 pid:4966 tgid:4966 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 worker_thread+0x2de/0xf70 kernel/workqueue.c:3408 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 task:kworker/1:6 state:I stack:29744 pid:5105 tgid:5105 ppid:2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 worker_thread+0x2de/0xf70 kernel/workqueue.c:3408 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 task:udevd state:S stack:25744 pid:5157 tgid:5157 ppid:2401 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_hrtimeout_range_clock+0x3c7/0x430 kernel/time/hrtimer.c:2273 ep_poll fs/eventpoll.c:2062 [inline] do_epoll_wait+0x13d4/0x1ae0 fs/eventpoll.c:2464 __do_sys_epoll_wait fs/eventpoll.c:2476 [inline] __se_sys_epoll_wait fs/eventpoll.c:2471 [inline] __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2471 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: 0033:0x7f6bf656a457 RSP: 002b:00007ffe2b9179a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6bf656a457 RDX: 0000000000000004 RSI: 00007ffe2b9179e8 RDI: 0000000000000004 RBP: 0000559e5abd7d20 R08: 0000000000000007 R09: a7f215d4e3c3fde7 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000559e5abdc300 R13: 00007ffe2b9179e8 R14: 00000000ffffffff R15: 0000559e5abb5910 task:udevd state:S stack:28112 pid:5158 tgid:5158 ppid:2401 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_hrtimeout_range_clock+0x3c7/0x430 kernel/time/hrtimer.c:2273 ep_poll fs/eventpoll.c:2062 [inline] do_epoll_wait+0x13d4/0x1ae0 fs/eventpoll.c:2464 __do_sys_epoll_wait fs/eventpoll.c:2476 [inline] __se_sys_epoll_wait fs/eventpoll.c:2471 [inline] __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2471 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: 0033:0x7f6bf656a457 RSP: 002b:00007ffe2b9179a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6bf656a457 RDX: 0000000000000004 RSI: 00007ffe2b9179e8 RDI: 0000000000000004 RBP: 0000559e5abd2ee0 R08: 0000000000000007 R09: a7f215d4e3c3fde7 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000559e5abe3020 R13: 00007ffe2b9179e8 R14: 00000000ffffffff R15: 0000559e5abb5910 task:syz-executor.4 state:S stack:27184 pid:5522 tgid:5522 ppid:2524 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __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 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: 0033:0x7fbc3557f0a9 RSP: 002b:00007fff1584b468 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 000000000003138f RCX: 00007fbc3557f0a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fbc356b605c RBP: 00000000000314ed R08: 00007fbc3568c080 R09: 0000002600000000 R10: 00007fff1584b550 R11: 0000000000000246 R12: 00007fff1584b550 R13: 00007fbc356b605c R14: 000000000000015e R15: 00007fff1584b570 task:syz-executor.4 state:S stack:27520 pid:5523 tgid:5522 ppid:2524 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __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 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: 0033:0x7fbc3557f0a9 RSP: 002b:00007fbc348f9178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fbc356b5f88 RCX: 00007fbc3557f0a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fbc356b5f88 RBP: 00007fbc356b5f80 R08: 00007fbc348f96c0 R09: 00007fbc348f96c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbc356b5f8c R13: 0000000000000006 R14: 00007fff1584b2a0 R15: 00007fff1584b388 task:syz-executor.4 state:S stack:27184 pid:5550 tgid:5522 ppid:2524 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2557 do_wait_for_common kernel/sched/completion.c:95 [inline] __wait_for_common+0x3de/0x5f0 kernel/sched/completion.c:116 wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion_interruptible+0x1f/0x40 kernel/sched/completion.c:216 raw_process_ep_io+0x5d7/0xb90 drivers/usb/gadget/legacy/raw_gadget.c:1121 raw_ioctl_ep_write drivers/usb/gadget/legacy/raw_gadget.c:1152 [inline] raw_ioctl+0xa4f/0x2b80 drivers/usb/gadget/legacy/raw_gadget.c:1324 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+0x193/0x220 fs/ioctl.c:893 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: 0033:0x7fbc3557ee0b RSP: 002b:00007fbc348d7000 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: fffffffffffffe37 RCX: 00007fbc3557ee0b RDX: 00007fbc348d7080 RSI: 0000000040085507 RDI: 0000000000000003 RBP: 0000000000000003 R08: 00007fbc357e2320 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000020000040 R13: 0000000000000000 R14: 00007fbc356b6050 R15: 00007fff1584b388 task:syz-executor.4 state:S stack:28064 pid:5554 tgid:5522 ppid:2524 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __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 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: 0033:0x7fbc3557f0a9 RSP: 002b:00007fbc348b7178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fbc356b6128 RCX: 00007fbc3557f0a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fbc356b6128 RBP: 00007fbc356b6120 R08: 00007fbc348b76c0 R09: 00007fbc348b76c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbc356b612c R13: 000000000000000b R14: 00007fff1584b2a0 R15: 00007fff1584b388 task:syz-executor.1 state:D stack:27184 pid:5524 tgid:5524 ppid:2526 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 synchronize_rcu_expedited+0x392/0x450 kernel/rcu/tree_exp.h:954 evdev_detach_client drivers/input/evdev.c:386 [inline] evdev_release+0x245/0x400 drivers/input/evdev.c:449 __fput+0x408/0xbb0 fs/file_table.c:422 task_work_run+0x14e/0x250 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [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+0x24b/0x250 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd526b030a9 RSP: 002b:00007ffeb3dc6c48 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00000000000300d7 RCX: 00007fd526b030a9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: ffffffffffffffff R08: 0000000000000001 R09: 0000001e00000000 R10: 00007fd526a86000 R11: 0000000000000246 R12: 00007fd526c39f80 R13: 00007fd526c39f8c R14: 0000000000000032 R15: 00007fd526c3b980 task:syz-executor.1 state:S stack:27600 pid:5525 tgid:5524 ppid:2526 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __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 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: 0033:0x7fd526b030a9 RSP: 002b:00007fd525e7d178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fd526c39f88 RCX: 00007fd526b030a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd526c39f88 RBP: 00007fd526c39f80 R08: 00007fd525e7d6c0 R09: 00007fd525e7d6c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd526c39f8c R13: 0000000000000006 R14: 00007ffeb3dc6a80 R15: 00007ffeb3dc6b68 task:syz-executor.1 state:S stack:29264 pid:5551 tgid:5524 ppid:2526 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __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 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: 0033:0x7fd526b030a9 RSP: 002b:00007fd525e5c178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fd526c3a058 RCX: 00007fd526b030a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd526c3a058 RBP: 00007fd526c3a050 R08: 00007fd525e5c6c0 R09: 00007fd525e5c6c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd526c3a05c R13: 000000000000006e R14: 00007ffeb3dc6a80 R15: 00007ffeb3dc6b68 task:udevd state:S stack:28048 pid:5527 tgid:5527 ppid:2401 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_hrtimeout_range_clock+0x3c7/0x430 kernel/time/hrtimer.c:2273 ep_poll fs/eventpoll.c:2062 [inline] do_epoll_wait+0x13d4/0x1ae0 fs/eventpoll.c:2464 __do_sys_epoll_wait fs/eventpoll.c:2476 [inline] __se_sys_epoll_wait fs/eventpoll.c:2471 [inline] __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2471 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: 0033:0x7f6bf656a457 RSP: 002b:00007ffe2b9179a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6bf656a457 RDX: 0000000000000004 RSI: 00007ffe2b9179e8 RDI: 0000000000000004 RBP: 0000559e5abc6f10 R08: 0000000000000007 R09: a7f215d4e3c3fde7 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000559e5abf47f0 R13: 00007ffe2b9179e8 R14: 00000000ffffffff R15: 0000559e5abb5910 task:udevd state:S stack:28080 pid:5528 tgid:5528 ppid:2401 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_hrtimeout_range_clock+0x3c7/0x430 kernel/time/hrtimer.c:2273 ep_poll fs/eventpoll.c:2062 [inline] do_epoll_wait+0x13d4/0x1ae0 fs/eventpoll.c:2464 __do_sys_epoll_wait fs/eventpoll.c:2476 [inline] __se_sys_epoll_wait fs/eventpoll.c:2471 [inline] __x64_sys_epoll_wait+0x194/0x290 fs/eventpoll.c:2471 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: 0033:0x7f6bf656a457 RSP: 002b:00007ffe2b9179a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6bf656a457 RDX: 0000000000000004 RSI: 00007ffe2b9179e8 RDI: 0000000000000004 RBP: 0000559e5ac05440 R08: 0000000000000007 R09: a7f215d4e3c3fde7 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000559e5abf59b0 R13: 00007ffe2b9179e8 R14: 00000000ffffffff R15: 0000559e5abb5910 task:syz-executor.2 state:R running task stack:26112 pid:5548 tgid:5548 ppid:2530 flags:0x00000008 Call Trace: sched_show_task kernel/sched/core.c:9191 [inline] sched_show_task+0x42e/0x650 kernel/sched/core.c:9165 show_state_filter+0xee/0x320 kernel/sched/core.c:9236 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:1524 [inline] kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1543 input_to_handler+0x38f/0x4d0 drivers/input/input.c:132 input_pass_values+0x5c9/0x840 drivers/input/input.c:161 input_event_dispose+0x508/0x630 drivers/input/input.c:389 input_handle_event+0x11c/0xd80 drivers/input/input.c:406 input_event drivers/input/input.c:435 [inline] input_event+0x83/0xa0 drivers/input/input.c:427 hidinput_hid_event+0xa12/0x2410 drivers/hid/hid-input.c:1746 hid_process_event+0x4b7/0x5e0 drivers/hid/hid-core.c:1540 hid_input_array_field+0x535/0x710 drivers/hid/hid-core.c:1652 hid_process_report drivers/hid/hid-core.c:1694 [inline] hid_report_raw_event+0xa02/0x11c0 drivers/hid/hid-core.c:2015 hid_input_report+0x345/0x440 drivers/hid/hid-core.c:2089 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:284 __usb_hcd_giveback_urb+0x466/0x6e0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734 dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1687 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1751 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1813 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0033:0x7fe39c57de35 Code: 85 e5 fe ff ff 0f b6 5c 24 0b 44 89 f2 45 89 f2 45 8d 5e 04 44 89 f0 48 8d 3d d7 71 16 00 89 c6 81 e6 ff 1f 00 00 48 8b 0c f7 <4c> 39 d1 0f 84 c7 fe ff ff 48 85 c9 0f 84 d9 00 00 00 83 c0 01 44 RSP: 002b:00007ffc06509230 EFLAGS: 00000206 RAX: 000000008115397b RBX: 0000000000000001 RCX: 000000008115397b RDX: 000000008115397b RSI: 000000000000197b RDI: 00007fe39c6e5000 RBP: 00007fe39bf44008 R08: 0000001b31a20000 R09: 0000000000000000 R10: 000000008115397b R11: 000000008115397f R12: 00000000000046f8 R13: ffffffff811539b8 R14: ffffffff8115397b R15: 00007fe39c6f9018 task:syz-executor.2 state:S stack:27200 pid:5549 tgid:5548 ppid:2530 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __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 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: 0033:0x7fe39c5c20a9 RSP: 002b:00007fe39b93c178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fe39c6f8f88 RCX: 00007fe39c5c20a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe39c6f8f88 RBP: 00007fe39c6f8f80 R08: 00007fe39b93c6c0 R09: 00007fe39b93c6c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe39c6f8f8c R13: 0000000000000006 R14: 00007ffc06509140 R15: 00007ffc06509228 task:syz-executor.3 state:S stack:27184 pid:5552 tgid:5552 ppid:2531 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 futex_wait_queue+0xfc/0x1f0 kernel/futex/waitwake.c:370 __futex_wait+0x291/0x3c0 kernel/futex/waitwake.c:669 futex_wait+0xe9/0x380 kernel/futex/waitwake.c:697 do_futex+0x22b/0x350 kernel/futex/syscalls.c:102 __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 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: 0033:0x7fa5054910a9 RSP: 002b:00007ffee74f1a58 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000030e1b RCX: 00007fa5054910a9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa5055c7f8c RBP: 0000000000031a05 R08: 00007fa50559e080 R09: 0000000300000000 R10: 00007ffee74f1b40 R11: 0000000000000246 R12: 00007ffee74f1b40 R13: 00007fa5055c7f8c R14: 0000000000000bea R15: 00007ffee74f1b60 task:syz-executor.3 state:S stack:28880 pid:5553 tgid:5552 ppid:2531 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 schedule_timeout+0x258/0x2a0 kernel/time/timer.c:2557 ___down_common kernel/locking/semaphore.c:225 [inline] __down_common+0x32d/0x730 kernel/locking/semaphore.c:246 down_interruptible+0x7f/0xa0 kernel/locking/semaphore.c:87 raw_event_queue_fetch drivers/usb/gadget/legacy/raw_gadget.c:100 [inline] raw_ioctl_event_fetch drivers/usb/gadget/legacy/raw_gadget.c:637 [inline] raw_ioctl+0x11e2/0x2b80 drivers/usb/gadget/legacy/raw_gadget.c:1309 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+0x193/0x220 fs/ioctl.c:893 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: 0033:0x7fa505490e0b RSP: 002b:00007fa504808fa0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa505490e0b RDX: 00007fa50480a070 RSI: 0000000080085502 RDI: 0000000000000003 RBP: 00007fa50480a070 R08: 0000000000000080 R09: 00007fa504809068 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000080085502 R13: 0000000800000000 R14: 0000000000000012 R15: 00007fa5054f6b92 task:syz-executor.0 state:D stack:27184 pid:5555 tgid:5555 ppid:2525 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5408 [inline] __schedule+0xca6/0x3170 kernel/sched/core.c:6745 __schedule_loop kernel/sched/core.c:6822 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6837 exp_funnel_lock+0x344/0x3b0 kernel/rcu/tree_exp.h:314 synchronize_rcu_expedited+0x290/0x450 kernel/rcu/tree_exp.h:939 evdev_detach_client drivers/input/evdev.c:386 [inline] evdev_release+0x245/0x400 drivers/input/evdev.c:449 __fput+0x408/0xbb0 fs/file_table.c:422 task_work_run+0x14e/0x250 kernel/task_work.c:180 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [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+0x24b/0x250 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f168cb140a9 RSP: 002b:00007ffef5f24cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00000000000313eb RCX: 00007f168cb140a9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: ffffffffffffffff R08: 0000000000000001 R09: 0000001e00000000 R10: 00007f168ca97000 R11: 0000000000000246 R12: 00007f168cc4af80 R13: 00007f168cc4af8c R14: 0000000000000032 R15: 00007f168cc4c980 Showing all locks held in the system: 5 locks held by kworker/0:0/8: #0: ffff8881052bcd48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc9000008fd80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffff88810974e190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #2: ffff88810974e190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f50 drivers/usb/core/hub.c:5849 #3: ffff88810974f510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3206 [inline] #3: ffff88810974f510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5418 [inline] #3: ffff88810974f510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] #3: ffff88810974f510 (&port_dev->status_lock){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline] #3: ffff88810974f510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x28b8/0x4f50 drivers/usb/core/hub.c:5903 #4: ffff88810935a168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect drivers/usb/core/hub.c:5419 [inline] #4: ffff88810935a168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] #4: ffff88810935a168 (hcd->address0_mutex){+.+.}-{3:3}, at: port_event drivers/usb/core/hub.c:5821 [inline] #4: ffff88810935a168 (hcd->address0_mutex){+.+.}-{3:3}, at: hub_event+0x28de/0x4f50 drivers/usb/core/hub.c:5903 5 locks held by kworker/0:1/9: #0: ffff888100080948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc9000009fd80 ((work_completion)(&intf->reset_ws)){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffff888139dcd190 (&dev->mutex){....}-{3:3}, at: device_trylock include/linux/device.h:1019 [inline] #2: ffff888139dcd190 (&dev->mutex){....}-{3:3}, at: usb_lock_device_for_reset+0x184/0x330 drivers/usb/core/usb.c:898 #3: ffff8881093c2510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3206 [inline] #3: ffff8881093c2510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_reset_device+0x556/0xa80 drivers/usb/core/hub.c:6314 #4: ffff88810f68e968 (hcd->address0_mutex){+.+.}-{3:3}, at: usb_reset_and_verify_device+0x2e3/0x10a0 drivers/usb/core/hub.c:6120 2 locks held by getty/2459: #0: ffff888106bff0a0 (&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 4 locks held by kworker/0:4/4812: #0: ffff8881052bcd48 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x12bf/0x1b60 kernel/workqueue.c:3206 #1: ffffc9000b337d80 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x957/0x1b60 kernel/workqueue.c:3207 #2: ffff8881093f8190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:1009 [inline] #2: ffff8881093f8190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1be/0x4f50 drivers/usb/core/hub.c:5849 #3: ffff8881093c2510 (&port_dev->status_lock){+.+.}-{3:3}, at: usb_lock_port drivers/usb/core/hub.c:3206 [inline] #3: ffff8881093c2510 (&port_dev->status_lock){+.+.}-{3:3}, at: hub_event+0x5c4/0x4f50 drivers/usb/core/hub.c:5902 1 lock held by udevd/4862: #0: ffffffff886bfdf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:323 1 lock held by syz-executor.1/5524: #0: ffffffff886bfdf8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x282/0x3b0 kernel/rcu/tree_exp.h:291 4 locks held by syz-executor.2/5548: #0: ffff88811592d230 (&dev->event_lock){-.-.}-{2:2}, at: input_event drivers/input/input.c:434 [inline] #0: ffff88811592d230 (&dev->event_lock){-.-.}-{2:2}, at: input_event+0x70/0xa0 drivers/input/input.c:427 #1: ffffffff886b4660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #1: ffffffff886b4660 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #1: ffffffff886b4660 (rcu_read_lock){....}-{1:2}, at: input_pass_values+0xb2/0x840 drivers/input/input.c:153 #2: ffffffff88b69cf8 (kbd_event_lock){-.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #2: ffffffff88b69cf8 (kbd_event_lock){-.-.}-{2:2}, at: kbd_event+0x8a/0x17a0 drivers/tty/vt/keyboard.c:1537 #3: ffffffff886b4660 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline] #3: ffffffff886b4660 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline] #3: ffffffff886b4660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614 =============================================