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: 0033:0x7f76928b59a3 ================================ WARNING: inconsistent lock state 6.0.0-rc4-syzkaller-00064-gd818320ea200 #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. udevd/13544 [HC0[0]:SC1[1]:HE0:SE0] takes: ffffffff87b85898 (vmap_area_lock){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] ffffffff87b85898 (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: 547699 hardirqs last enabled at (547698): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (547698): [] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202 hardirqs last disabled at (547699): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (547699): [] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162 softirqs last enabled at (544478): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last enabled at (544478): [] __irq_exit_rcu+0x113/0x170 kernel/softirq.c:650 softirqs last disabled at (547695): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last disabled at (547695): [] __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 *** 6 locks held by udevd/13544: #0: ffffffff87b8a5e0 (fs_reclaim){+.+.}-{0:0}, at: might_alloc include/linux/sched/mm.h:271 [inline] #0: ffffffff87b8a5e0 (fs_reclaim){+.+.}-{0:0}, at: slab_pre_alloc_hook mm/slab.h:700 [inline] #0: ffffffff87b8a5e0 (fs_reclaim){+.+.}-{0:0}, at: slab_alloc_node mm/slub.c:3157 [inline] #0: ffffffff87b8a5e0 (fs_reclaim){+.+.}-{0:0}, at: __kmalloc_node_track_caller+0x5c/0x360 mm/slub.c:4955 #1: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:31 [inline] #1: ffffc90000007d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1464 #2: ffff888109a8a230 (&dev->event_lock){-.-.}-{2:2}, at: input_event drivers/input/input.c:430 [inline] #2: ffff888109a8a230 (&dev->event_lock){-.-.}-{2:2}, at: input_event+0x6c/0xa0 drivers/input/input.c:423 #3: ffffffff87a950a0 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x710 drivers/input/input.c:858 #4: ffffffff87eb97f8 (kbd_event_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] #4: ffffffff87eb97f8 (kbd_event_lock){..-.}-{2:2}, at: kbd_event+0x86/0x1790 drivers/tty/vt/keyboard.c:1537 #5: ffffffff87a950a0 (rcu_read_lock){....}-{1:2}, at: show_state_filter+0x0/0x300 kernel/sched/core.c:8832 stack backtrace: CPU: 0 PID: 13544 Comm: udevd Not tainted 6.0.0-rc4-syzkaller-00064-gd818320ea200 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 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:130 input_pass_values.part.0+0x230/0x710 drivers/input/input.c:159 input_pass_values drivers/input/input.c:146 [inline] input_event_dispose+0x5cf/0x730 drivers/input/input.c:374 input_handle_event+0x112/0xda0 drivers/input/input.c:402 input_event drivers/input/input.c:431 [inline] input_event+0x7f/0xa0 drivers/input/input.c:423 input_sync include/linux/input.h:450 [inline] hidinput_report_event+0xae/0x100 drivers/hid/hid-input.c:1655 hid_report_raw_event+0x3e6/0x1280 drivers/hid/hid-core.c:2005 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:lock_acquire+0x1ef/0x570 kernel/locking/lockdep.c:5634 Code: 4f d8 7e 83 f8 01 0f 85 e8 02 00 00 9c 58 f6 c4 02 0f 85 fb 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffffc9000cdef730 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff920019bdee8 RCX: ffffffff8129d2be RDX: 1ffff1102318913e RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8b0786d7 R10: fffffbfff160f0da R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff87b8a5e0 R15: 0000000000000000 __fs_reclaim_acquire mm/page_alloc.c:4674 [inline] fs_reclaim_acquire+0x115/0x160 mm/page_alloc.c:4688 might_alloc include/linux/sched/mm.h:271 [inline] slab_pre_alloc_hook mm/slab.h:700 [inline] slab_alloc_node mm/slub.c:3157 [inline] __kmalloc_node_track_caller+0x5c/0x360 mm/slub.c:4955 kmalloc_reserve net/core/skbuff.c:358 [inline] __alloc_skb+0xd9/0x2f0 net/core/skbuff.c:430 alloc_skb include/linux/skbuff.h:1257 [inline] alloc_skb_with_frags+0x93/0x6c0 net/core/skbuff.c:6017 sock_alloc_send_pskb+0x7a3/0x930 net/core/sock.c:2665 unix_dgram_sendmsg+0x415/0x1b50 net/unix/af_unix.c:1912 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 sock_write_iter+0x291/0x3d0 net/socket.c:1108 call_write_iter include/linux/fs.h:2187 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x9e9/0xdd0 fs/read_write.c:578 ksys_write+0x1e8/0x250 fs/read_write.c:631 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: 0033:0x7f76928b59a3 Code: 8b 15 d9 f4 0c 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 RSP: 002b:00007fff34b91648 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f76928b59a3 RDX: 0000000000000000 RSI: 00007fff34b9169f RDI: 000000000000000a RBP: 00007fff34b9169f R08: 0000000000000001 R09: 0000555948a30eb0 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000a R13: 00007f769275e6a8 R14: 0000000000000000 R15: 00005559489f9910 Code: 8b 15 d9 f4 0c 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 64 8b 04 25 18 00 00 00 85 c0 75 14 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 55 c3 0f 1f 40 00 48 83 ec 28 48 89 54 24 18 RSP: 002b:00007fff34b91648 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f76928b59a3 RDX: 0000000000000000 RSI: 00007fff34b9169f RDI: 000000000000000a RBP: 00007fff34b9169f R08: 0000000000000001 R09: 0000555948a30eb0 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000a R13: 00007f769275e6a8 R14: 0000000000000000 R15: 00005559489f9910 task:kworker/0:4 state:R running task stack:23192 pid:13879 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/0:9 state:I stack:30176 pid:13880 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:syz-executor.2 state:D stack:27720 pid:13881 ppid: 1312 flags:0x00000004 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 synchronize_rcu_expedited+0x39a/0x670 kernel/rcu/tree_exp.h:955 synchronize_rcu+0x22b/0x260 kernel/rcu/tree.c:3519 evdev_detach_client drivers/input/evdev.c:386 [inline] evdev_release+0x23f/0x410 drivers/input/evdev.c:449 __fput+0x277/0x9d0 fs/file_table.c:320 task_work_run+0xdd/0x1a0 kernel/task_work.c:177 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x1f7/0x200 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: 0033:0x7f54d0ab7ebb RSP: 002b:00007ffea852a970 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f54d0ab7ebb RDX: 0000000000000000 RSI: 0000001b2cd329c8 RDI: 0000000000000006 RBP: 00007f54d0c19980 R08: 0000000000000000 R09: 00000000aeee11cb R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000b83fe R13: 00007ffea852aa70 R14: 00007ffea852aa90 R15: 000000000000015e task:syz-executor.1 state:R running task stack:28752 pid:13889 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] 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: 0033:0x7f418b52afa1 RSP: 002b:00007ffdc134a230 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 00007f418b618f80 RCX: 00007f418b52afa1 RDX: 00007ffdc134a270 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f418b61a980 R08: 0000000000000000 R09: 00007ffdc138d080 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000b8046 R13: 00007ffdc134a380 R14: 00007f418b619050 R15: 0000000000000032 task:syz-executor.1 state:S stack:29120 pid:13890 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: 0033:0x7f418b506037 RSP: 002b:00007f418ac7a098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f418ac7b110 RCX: 00007f418b506037 RDX: 00007f418ac7b110 RSI: 0000000080085502 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000012 R09: 00007f418ac7a108 R10: 00007f418ac7a140 R11: 0000000000000246 R12: 0000000800000000 R13: 0000000000000000 R14: 0000000000000012 R15: 00007f418b56bf34 task:syz-executor.1 state:S stack:29688 pid:13891 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: 0033:0x7f418b506279 RSP: 002b:00007f418ac5b218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f418b619058 RCX: 00007f418b506279 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f418b619058 RBP: 00007f418b619050 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f418b61905c R13: 00007ffdc134a21f R14: 00007f418ac5b300 R15: 0000000000022000 task:syz-executor.0 state:R running task stack:28752 pid:13895 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: 0033:0x7ff21e7defa1 RSP: 002b:00007ffc44ed6a20 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 00007ff21e8ccf80 RCX: 00007ff21e7defa1 RDX: 00007ffc44ed6a60 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ff21e8ce980 R08: 0000000000000000 R09: 00007ffc44f54080 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000b82eb R13: 00007ffc44ed6b70 R14: 00007ff21e8ccf80 R15: 0000000000000032 task:syz-executor.0 state:S stack:29088 pid:13896 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: 0033:0x7ff21e7ba279 RSP: 002b:00007ff21df30218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007ff21e8ccf88 RCX: 00007ff21e7ba279 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff21e8ccf88 RBP: 00007ff21e8ccf80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff21e8ccf8c R13: 00007ffc44ed6a0f R14: 00007ff21df30300 R15: 0000000000022000 task:syz-executor.0 state:S stack:29192 pid:13897 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 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: 0033:0x7ff21e7ba037 RSP: 002b:00007ff21df0d098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff21df0e110 RCX: 00007ff21e7ba037 RDX: 00007ff21df0e110 RSI: 0000000080085502 RDI: 0000000000000006 RBP: 0000000000000006 R08: 000000000000ffff R09: 000000000000000b R10: 00007ff21df0d140 R11: 0000000000000246 R12: 0000000800000000 R13: 0000000000000000 R14: 0000000020000040 R15: 00007ff21e81ff34 task:syz-executor.0 state:S stack:29192 pid:13898 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: 0033:0x7ff21e7ba279 RSP: 002b:00007ff21deee218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007ff21e8cd128 RCX: 00007ff21e7ba279 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff21e8cd128 RBP: 00007ff21e8cd120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff21e8cd12c R13: 00007ffc44ed6a0f R14: 00007ff21deee300 R15: 0000000000022000 task:syz-executor.3 state:S stack:28752 pid:13904 ppid: 1315 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: 0033:0x7fe009506279 RSP: 002b:00007ffdac577d68 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fe009618f8c RCX: 00007fe009506279 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fe009618f8c RBP: 00007fe009618f80 R08: 00007ffdac581080 R09: 0000000000000000 R10: 00007ffdac577e50 R11: 0000000000000246 R12: 00000000000b8002 R13: 00007ffdac577e50 R14: 00007ffdac577e70 R15: 0000000000000032 task:syz-executor.3 state:R running task stack:29112 pid:13905 ppid: 1315 flags:0x00000000 Call Trace: task:syz-executor.4 state:S stack:28752 pid:13906 ppid: 1310 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: 0033:0x7faca8b3b279 RSP: 002b:00007ffe50587998 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007faca8c4df8c RCX: 00007faca8b3b279 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007faca8c4df8c RBP: 00007faca8c4df80 R08: 00007ffe505f9080 R09: 0000000000000000 R10: 00007ffe50587a80 R11: 0000000000000246 R12: 00000000000b7d6f R13: 00007ffe50587a80 R14: 00007ffe50587aa0 R15: 0000000000000bea task:syz-executor.4 state:S stack:29088 pid:13907 ppid: 1310 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: 0033:0x7faca8b3b037 RSP: 002b:00007faca82af098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007faca82b0110 RCX: 00007faca8b3b037 RDX: 00007faca82b0110 RSI: 0000000080085502 RDI: 0000000000000003 RBP: 0000000000000003 R08: 000000000000ffff R09: 000000000000000b R10: 00007faca82af140 R11: 0000000000000246 R12: 0000000800000000 R13: 0000000000000000 R14: 0000000020000840 R15: 00007faca8ba0f34 task:syz-executor.5 state:S stack:28752 pid:13908 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: 0033:0x7f1dd319a279 RSP: 002b:00007ffcec8e6a88 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f1dd32acf8c RCX: 00007f1dd319a279 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f1dd32acf8c RBP: 00007f1dd32acf80 R08: 00007ffcec9cd080 R09: 0000000000000000 R10: 00007ffcec8e6b70 R11: 0000000000000246 R12: 00000000000b7e7d R13: 00007ffcec8e6b70 R14: 00007ffcec8e6b90 R15: 0000000000000bea task:syz-executor.5 state:S stack:29120 pid:13909 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 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x1be/0x530 kernel/sched/completion.c:106 wait_for_common kernel/sched/completion.c:117 [inline] wait_for_completion_interruptible+0x1b/0x30 kernel/sched/completion.c:206 raw_process_ep0_io+0x4c3/0x8f0 drivers/usb/gadget/legacy/raw_gadget.c:687 raw_ioctl_ep0_write drivers/usb/gadget/legacy/raw_gadget.c:715 [inline] raw_ioctl+0x1733/0x2740 drivers/usb/gadget/legacy/raw_gadget.c:1259 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: 0033:0x7f1dd319a037 RSP: 002b:00007f1dd290e098 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f1dd290f110 RCX: 00007f1dd319a037 RDX: 00007f1dd290e100 RSI: 0000000040085503 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000012 R09: 00007f1dd290e108 R10: 00007f1dd290e140 R11: 0000000000000246 R12: 0000000800000000 R13: 0000000000000000 R14: 0000000000000012 R15: 00007f1dd31fff34 INFO: lockdep is turned off. keytouch 0003:0926:3333.0054: can't resubmit intr, dummy_hcd.2-1/input0, status -19 ---------------- Code disassembly (best guess): 0: 4f d8 7e 83 rex.WRXB fdivrs -0x7d(%r14) 4: f8 clc 5: 01 0f add %ecx,(%rdi) 7: 85 e8 test %ebp,%eax 9: 02 00 add (%rax),%al b: 00 9c 58 f6 c4 02 0f add %bl,0xf02c4f6(%rax,%rbx,2) 12: 85 fb test %edi,%ebx 14: 02 00 add (%rax),%al 16: 00 48 83 add %cl,-0x7d(%rax) 19: 7c 24 jl 0x3f 1b: 08 00 or %al,(%rax) 1d: 74 01 je 0x20 1f: fb sti 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 48 01 c3 add %rax,%rbx <-- trapping instruction 2d: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 34: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx) 3b: 00 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 84 .byte 0x84 3f: 24 .byte 0x24