do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9a883ab1da ================================ WARNING: inconsistent lock state 5.19.0-syzkaller-13666-gffcf9c5700e4 #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. udevd/4285 [HC0[0]:SC1[1]:HE0:SE0] takes: ffffffff87b854d8 (vmap_area_lock){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] ffffffff87b854d8 (vmap_area_lock){+.?.}-{2:2}, at: find_vmap_area+0x1c/0x130 mm/vmalloc.c:1836 {SOFTIRQ-ON-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5666 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:349 [inline] alloc_vmap_area+0xa0b/0x1d50 mm/vmalloc.c:1617 __get_vm_area_node+0x142/0x3f0 mm/vmalloc.c:2484 get_vm_area_caller+0x43/0x50 mm/vmalloc.c:2537 __ioremap_caller.constprop.0+0x292/0x600 arch/x86/mm/ioremap.c:280 acpi_os_ioremap include/acpi/acpi_io.h:13 [inline] acpi_map drivers/acpi/osl.c:296 [inline] acpi_os_map_iomem+0x463/0x550 drivers/acpi/osl.c:355 acpi_tb_acquire_table+0xd8/0x209 drivers/acpi/acpica/tbdata.c:142 acpi_tb_validate_table drivers/acpi/acpica/tbdata.c:317 [inline] acpi_tb_validate_table+0x50/0x8c drivers/acpi/acpica/tbdata.c:308 acpi_tb_verify_temp_table+0x84/0x674 drivers/acpi/acpica/tbdata.c:504 acpi_reallocate_root_table+0x374/0x3e0 drivers/acpi/acpica/tbxface.c:180 acpi_early_init+0x13a/0x438 drivers/acpi/bus.c:1214 start_kernel+0x3cf/0x48f init/main.c:1099 secondary_startup_64_no_verify+0xce/0xdb irq event stamp: 5409823 hardirqs last enabled at (5409822): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (5409822): [] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202 hardirqs last disabled at (5409823): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (5409823): [] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162 softirqs last enabled at (5404392): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last enabled at (5404392): [] __irq_exit_rcu+0x113/0x170 kernel/softirq.c:650 softirqs last disabled at (5409819): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last disabled at (5409819): [] __irq_exit_rcu+0x113/0x170 kernel/softirq.c:650 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(vmap_area_lock); lock(vmap_area_lock); *** DEADLOCK *** 5 locks held by udevd/4285: #0: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:31 [inline] #0: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1464 #1: ffff88810f683230 (&dev->event_lock){-.-.}-{2:2}, at: input_event drivers/input/input.c:456 [inline] #1: ffff88810f683230 (&dev->event_lock){-.-.}-{2:2}, at: input_event+0x6c/0xa0 drivers/input/input.c:449 #2: ffffffff87a94f60 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x710 drivers/input/input.c:884 #3: ffffffff87eb92f8 (kbd_event_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] #3: ffffffff87eb92f8 (kbd_event_lock){..-.}-{2:2}, at: kbd_event+0x86/0x1790 drivers/tty/vt/keyboard.c:1537 #4: ffffffff87a94f60 (rcu_read_lock){....}-{1:2}, at: show_state_filter+0x0/0x300 kernel/sched/core.c:8832 stack backtrace: CPU: 0 PID: 4285 Comm: udevd Not tainted 5.19.0-syzkaller-13666-gffcf9c5700e4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_usage_bug kernel/locking/lockdep.c:3961 [inline] valid_state kernel/locking/lockdep.c:3973 [inline] mark_lock_irq kernel/locking/lockdep.c:4176 [inline] mark_lock.part.0.cold+0x18/0xd8 kernel/locking/lockdep.c:4632 mark_lock kernel/locking/lockdep.c:4596 [inline] mark_usage kernel/locking/lockdep.c:4527 [inline] __lock_acquire+0x11d9/0x56d0 kernel/locking/lockdep.c:5007 lock_acquire kernel/locking/lockdep.c:5666 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5631 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:349 [inline] find_vmap_area+0x1c/0x130 mm/vmalloc.c:1836 check_heap_object mm/usercopy.c:176 [inline] __check_object_size mm/usercopy.c:250 [inline] __check_object_size+0x1f8/0x700 mm/usercopy.c:212 check_object_size include/linux/thread_info.h:199 [inline] __copy_from_user_inatomic include/linux/uaccess.h:62 [inline] copy_from_user_nmi arch/x86/lib/usercopy.c:47 [inline] copy_from_user_nmi+0xcb/0x130 arch/x86/lib/usercopy.c:31 copy_code arch/x86/kernel/dumpstack.c:91 [inline] show_opcodes+0x59/0xb0 arch/x86/kernel/dumpstack.c:121 show_iret_regs+0xd/0x33 arch/x86/kernel/dumpstack.c:149 __show_regs+0x1e/0x60 arch/x86/kernel/process_64.c:74 show_trace_log_lvl+0x25b/0x2ba arch/x86/kernel/dumpstack.c:292 sched_show_task kernel/sched/core.c:8870 [inline] sched_show_task+0x44c/0x5c0 kernel/sched/core.c:8844 show_state_filter+0x13e/0x300 kernel/sched/core.c:8915 k_spec drivers/tty/vt/keyboard.c:667 [inline] k_spec+0xe1/0x130 drivers/tty/vt/keyboard.c:656 kbd_keycode drivers/tty/vt/keyboard.c:1524 [inline] kbd_event+0xcdd/0x1790 drivers/tty/vt/keyboard.c:1543 input_to_handler+0x3b9/0x4c0 drivers/input/input.c:129 input_pass_values.part.0+0x230/0x710 drivers/input/input.c:156 input_pass_values drivers/input/input.c:426 [inline] input_handle_event+0x67e/0x1470 drivers/input/input.c:426 input_event drivers/input/input.c:457 [inline] input_event+0x7f/0xa0 drivers/input/input.c:449 hidinput_hid_event+0x79d/0x2010 drivers/hid/hid-input.c:1633 hid_process_event+0x491/0x570 drivers/hid/hid-core.c:1527 hid_input_array_field+0x4d7/0x660 drivers/hid/hid-core.c:1639 hid_process_report drivers/hid/hid-core.c:1681 [inline] hid_report_raw_event+0xa8a/0x1280 drivers/hid/hid-core.c:1998 hid_input_report+0x360/0x4c0 drivers/hid/hid-core.c:2065 hid_irq_in+0x50e/0x690 drivers/hid/usbhid/hid-core.c:284 __usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1671 usb_hcd_giveback_urb+0x380/0x430 drivers/usb/core/hcd.c:1754 dummy_timer+0x11ff/0x32c0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1a0/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x674/0xa80 kernel/time/timer.c:1790 __run_timers kernel/time/timer.c:1768 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1803 __do_softirq+0x1c0/0x9a9 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x113/0x170 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:link_path_walk.part.0+0x6ad/0xf60 fs/namei.c:2330 Code: e8 88 f2 c2 ff 48 85 db 0f 85 66 01 00 00 e8 7a f2 c2 ff 48 8b 44 24 30 48 bf 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 38 00 <0f> 85 6e 08 00 00 48 b9 00 00 00 00 00 fc ff df 48 8b 04 24 48 8b RSP: 0018:ffffc900022279c0 EFLAGS: 00000246 RAX: 1ffff92000444f6c RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888112cd1c80 RSI: ffffffff81831696 RDI: dffffc0000000000 RBP: ffff888118b9b342 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: 2fbfce14bf3a566a R13: ffff888118b9b346 R14: fefefefefefefeff R15: 0000000b9c89befe link_path_walk fs/namei.c:2244 [inline] path_lookupat+0xb7/0x840 fs/namei.c:2473 filename_lookup+0x1ce/0x590 fs/namei.c:2503 vfs_statx+0x148/0x390 fs/stat.c:228 vfs_fstatat+0x8c/0xb0 fs/stat.c:255 __do_sys_newfstatat+0x91/0x110 fs/stat.c:425 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9a883ab1da Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 69 fc 0c 00 f7 RSP: 002b:00007ffd5fe44c48 EFLAGS: 00000202 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000560878bda190 RCX: 00007f9a883ab1da RDX: 00007ffd5fe44c58 RSI: 00007ffd5fe44ce8 RDI: 00000000ffffff9c RBP: 0000560877ee983e R08: 0000560877ee983e R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000202 R12: 0000000000000000 R13: 0000560878bda280 R14: 00007ffd5fe44ce8 R15: 0000560878bdcfb0 Code: 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 0b 00 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 69 fc 0c 00 f7 RSP: 002b:00007ffd5fe44c48 EFLAGS: 00000202 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 0000560878bda190 RCX: 00007f9a883ab1da RDX: 00007ffd5fe44c58 RSI: 00007ffd5fe44ce8 RDI: 00000000ffffff9c RBP: 0000560877ee983e R08: 0000560877ee983e R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000202 R12: 0000000000000000 R13: 0000560878bda280 R14: 00007ffd5fe44ce8 R15: 0000560878bdcfb0 task:kworker/1:7 state:I stack:29664 pid: 4603 ppid: 2 flags:0x00004000 Workqueue: 0x0 (rcu_gp) Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 worker_thread+0x15c/0x1080 kernel/workqueue.c:2457 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 task:kworker/u4:1 state:I stack:27240 pid: 8595 ppid: 2 flags:0x00004000 Workqueue: 0x0 (events_unbound) Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 worker_thread+0x15c/0x1080 kernel/workqueue.c:2457 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 task:kworker/1:0 state:I stack:22736 pid: 9476 ppid: 2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 worker_thread+0x15c/0x1080 kernel/workqueue.c:2457 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 task:kworker/1:8 state:I stack:29728 pid: 9790 ppid: 2 flags:0x00004000 Workqueue: 0x0 (events) Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 worker_thread+0x15c/0x1080 kernel/workqueue.c:2457 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 task:kworker/0:4 state:I stack:29968 pid:10869 ppid: 2 flags:0x00004000 Workqueue: 0x0 (rcu_gp) Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 worker_thread+0x15c/0x1080 kernel/workqueue.c:2457 kthread+0x2ea/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 task:udevd state:S stack:27808 pid:12645 ppid: 1178 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 schedule_hrtimeout_range_clock+0x343/0x390 kernel/time/hrtimer.c:2296 ep_poll fs/eventpoll.c:1878 [inline] do_epoll_wait+0x12ba/0x1950 fs/eventpoll.c:2256 __do_sys_epoll_wait fs/eventpoll.c:2268 [inline] __se_sys_epoll_wait fs/eventpoll.c:2263 [inline] __x64_sys_epoll_wait+0x158/0x270 fs/eventpoll.c:2263 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f9a883b9e46 RSP: 002b:00007ffd5fe4bbc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9a883b9e46 RDX: 0000000000000004 RSI: 00007ffd5fe4bc08 RDI: 0000000000000004 RBP: 0000560878bdddc0 R08: 0000000000000007 R09: 0000560878bce720 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000560878bf1c50 R13: 00007ffd5fe4bc08 R14: 00000000ffffffff R15: 0000560878bb4910 task:syz-executor.1 state:S stack:28680 pid:12735 ppid: 1307 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x197/0x690 kernel/time/hrtimer.c:2044 hrtimer_nanosleep+0x1f9/0x4a0 kernel/time/hrtimer.c:2097 common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1236 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1276 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1254 [inline] __x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1254 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1716029fa1 RSP: 002b:00007ffd18a92060 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f1716029fa1 RDX: 00007ffd18a920a0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000056880754 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000b6ff6 R13: 00007ffd18a921b0 R14: 00007f1716117f80 R15: 0000000000000bea task:syz-executor.1 state:S stack:29048 pid:12736 ppid: 1307 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue+0x144/0x3b0 kernel/futex/waitwake.c:355 futex_wait+0x28e/0x680 kernel/futex/waitwake.c:656 do_futex+0x1af/0x300 kernel/futex/syscalls.c:106 __do_sys_futex kernel/futex/syscalls.c:183 [inline] __se_sys_futex kernel/futex/syscalls.c:164 [inline] __x64_sys_futex+0x1b0/0x4a0 kernel/futex/syscalls.c:164 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f1716005279 RSP: 002b:00007f171577b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f1716117f88 RCX: 00007f1716005279 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1716117f88 RBP: 00007f1716117f80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1716117f8c R13: 00007ffd18a9204f R14: 00007f171577b300 R15: 0000000000022000 task:syz-executor.0 state:S stack:28680 pid:12745 ppid: 1302 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x197/0x690 kernel/time/hrtimer.c:2044 hrtimer_nanosleep+0x1f9/0x4a0 kernel/time/hrtimer.c:2097 common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1236 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1276 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1254 [inline] __x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1254 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff7b08bdfa1 RSP: 002b:00007ffdc6fd18d0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007ff7b08bdfa1 RDX: 00007ffdc6fd1910 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ff7b09b1418 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000b7130 R13: 00007ffdc6fd1a20 R14: 00007ff7b09abf80 R15: 0000000000000bea task:syz-executor.0 state:S stack:29120 pid:12746 ppid: 1302 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue+0x144/0x3b0 kernel/futex/waitwake.c:355 futex_wait+0x28e/0x680 kernel/futex/waitwake.c:656 do_futex+0x1af/0x300 kernel/futex/syscalls.c:106 __do_sys_futex kernel/futex/syscalls.c:183 [inline] __se_sys_futex kernel/futex/syscalls.c:164 [inline] __x64_sys_futex+0x1b0/0x4a0 kernel/futex/syscalls.c:164 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff7b0899279 RSP: 002b:00007ff7b000f218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007ff7b09abf88 RCX: 00007ff7b0899279 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff7b09abf88 RBP: 00007ff7b09abf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff7b09abf8c R13: 00007ffdc6fd18bf R14: 00007ff7b000f300 R15: 0000000000022000 task:syz-executor.2 state:S stack:28680 pid:12747 ppid: 1304 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue+0x144/0x3b0 kernel/futex/waitwake.c:355 futex_wait+0x28e/0x680 kernel/futex/waitwake.c:656 do_futex+0x1af/0x300 kernel/futex/syscalls.c:106 __do_sys_futex kernel/futex/syscalls.c:183 [inline] __se_sys_futex kernel/futex/syscalls.c:164 [inline] __x64_sys_futex+0x1b0/0x4a0 kernel/futex/syscalls.c:164 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fca3d5b8279 RSP: 002b:00007ffe54109908 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fca3d6caf8c RCX: 00007fca3d5b8279 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fca3d6caf8c RBP: 00007fca3d6caf80 R08: 00007ffe541c2080 R09: 0000000000000000 R10: 00007ffe541099f0 R11: 0000000000000246 R12: 00000000000b7157 R13: 00007ffe541099f0 R14: 00007ffe54109a10 R15: 0000000000000bea task:syz-executor.2 state:S stack:29192 pid:12748 ppid: 1304 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911 ___down_common kernel/locking/semaphore.c:225 [inline] __down_common+0x341/0x780 kernel/locking/semaphore.c:246 down_interruptible+0x7b/0xa0 kernel/locking/semaphore.c:87 raw_event_queue_fetch drivers/usb/gadget/legacy/raw_gadget.c:99 [inline] raw_ioctl_event_fetch drivers/usb/gadget/legacy/raw_gadget.c:588 [inline] raw_ioctl+0x100b/0x2740 drivers/usb/gadget/legacy/raw_gadget.c:1256 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fca3d5b8037 RSP: 002b:00007fca3cd2c098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fca3cd2d110 RCX: 00007fca3d5b8037 RDX: 00007fca3cd2d110 RSI: 0000000080085502 RDI: 0000000000000003 RBP: 0000000000000003 R08: 000000000000ffff R09: 000000000000000b R10: 00007fca3cd2c140 R11: 0000000000000246 R12: 0000000800000000 R13: 00000000200005c0 R14: 0000000020000000 R15: 00007fca3d61dd1d task:syz-executor.4 state:R running task stack:28680 pid:12754 ppid: 1318 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5182 [inline] __schedule+0x93f/0x26f0 kernel/sched/core.c:6494 schedule+0xda/0x1b0 kernel/sched/core.c:6570 exit_to_user_mode_loop kernel/entry/common.c:157 [inline] exit_to_user_mode_prepare+0x139/0x200 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb04f310279 RSP: 002b:00007fff402b0418 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007fb04f422f8c RCX: 00007fb04f310279 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb04f422f88 RBP: 00007fb04f422f80 R08: 00007fb04f429558 R09: 0000000000000000 R10: 0000001b2ce60000 R11: 0000000000000246 R12: 00007fb04f422f8c R13: 00007fb04f42a520 R14: 00007fb04f422f80 R15: 0000000000000000 task:syz-executor.4 state:R running task stack:29120 pid:12755 ppid: 1318 flags:0x00000000 Call Trace: task:syz-executor.4 state:R running task stack:32592 pid:12764 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12765 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12766 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12767 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12768 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12769 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12770 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12771 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12772 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12773 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12774 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 task:syz-executor.4 state:R running task stack:32592 pid:12775 ppid: 1318 flags:0x00004000 Call Trace: __switch_to_asm+0x80/0x80 arch/x86/entry/entry_64.S:275 INFO: lockdep is turned off. keytouch 0003:0926:3333.009A: can't resubmit intr, dummy_hcd.5-1/input0, status -19 keytouch 0003:0926:3333.009A: usb_submit_urb(ctrl) failed: -19 ---------------- Code disassembly (best guess): 0: e8 88 f2 c2 ff callq 0xffc2f28d 5: 48 85 db test %rbx,%rbx 8: 0f 85 66 01 00 00 jne 0x174 e: e8 7a f2 c2 ff callq 0xffc2f28d 13: 48 8b 44 24 30 mov 0x30(%rsp),%rax 18: 48 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%rdi 1f: fc ff df 22: 48 c1 e8 03 shr $0x3,%rax 26: 80 3c 38 00 cmpb $0x0,(%rax,%rdi,1) * 2a: 0f 85 6e 08 00 00 jne 0x89e <-- trapping instruction 30: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 37: fc ff df 3a: 48 8b 04 24 mov (%rsp),%rax 3e: 48 rex.W 3f: 8b .byte 0x8b