WARNING: inconsistent lock state 5.19.0-rc2-syzkaller-00052-g979086f5e006 #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. syz-executor.3/23335 [HC0[0]:SC1[1]:HE0:SE0] takes: ffffffff8beb8858 (vmap_area_lock){+.?.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] ffffffff8beb8858 (vmap_area_lock){+.?.}-{2:2}, at: find_vmap_area mm/vmalloc.c:1805 [inline] ffffffff8beb8858 (vmap_area_lock){+.?.}-{2:2}, at: find_vm_area+0x1c/0x190 mm/vmalloc.c:2525 {SOFTIRQ-ON-W} state was registered at: lock_acquire kernel/locking/lockdep.c:5665 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630 __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+0xa49/0x1f00 mm/vmalloc.c:1586 __get_vm_area_node+0x142/0x3f0 mm/vmalloc.c:2453 get_vm_area_caller+0x43/0x50 mm/vmalloc.c:2506 __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:1200 start_kernel+0x3cf/0x48f init/main.c:1098 secondary_startup_64_no_verify+0xce/0xdb irq event stamp: 4633 hardirqs last enabled at (4632): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (4632): [] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202 hardirqs last disabled at (4633): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (4633): [] _raw_spin_lock_irqsave+0x4e/0x50 kernel/locking/spinlock.c:162 softirqs last enabled at (2314): [] fpu_clone+0x3c3/0xbb0 arch/x86/kernel/fpu/core.c:608 softirqs last disabled at (4625): [] invoke_softirq kernel/softirq.c:445 [inline] softirqs last disabled at (4625): [] __irq_exit_rcu+0x123/0x180 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 syz-executor.3/23335: #0: ffffc900001f0d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: lockdep_copy_map include/linux/lockdep.h:31 [inline] #0: ffffc900001f0d70 ((&dum_hcd->timer)){+.-.}-{0:0}, at: call_timer_fn+0xd5/0x6b0 kernel/time/timer.c:1464 #1: ffff88804b8ad230 (&dev->event_lock#2){-.-.}-{2:2}, at: input_event drivers/input/input.c:456 [inline] #1: ffff88804b8ad230 (&dev->event_lock#2){-.-.}-{2:2}, at: input_event+0x7b/0xb0 drivers/input/input.c:449 #2: ffffffff8bd86b20 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x710 drivers/input/input.c:884 #3: ffffffff8c803118 (kbd_event_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:349 [inline] #3: ffffffff8c803118 (kbd_event_lock){..-.}-{2:2}, at: kbd_event+0x86/0x1780 drivers/tty/vt/keyboard.c:1537 #4: ffffffff8bd86b20 (rcu_read_lock){....}-{1:2}, at: show_state_filter+0x0/0x300 kernel/sched/core.c:8733 stack backtrace: CPU: 1 PID: 23335 Comm: syz-executor.3 Not tainted 5.19.0-rc2-syzkaller-00052-g979086f5e006 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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+0x11e7/0x5660 kernel/locking/lockdep.c:5007 lock_acquire kernel/locking/lockdep.c:5665 [inline] lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630 __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 mm/vmalloc.c:1805 [inline] find_vm_area+0x1c/0x190 mm/vmalloc.c:2525 check_heap_object mm/usercopy.c:176 [inline] __check_object_size mm/usercopy.c:252 [inline] __check_object_size+0x1fb/0x7a0 mm/usercopy.c:214 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:8771 [inline] sched_show_task+0x44c/0x5c0 kernel/sched/core.c:8745 show_state_filter+0x13e/0x300 kernel/sched/core.c:8816 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/0x1780 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/0x1440 drivers/input/input.c:426 input_event drivers/input/input.c:457 [inline] input_event+0x8e/0xb0 drivers/input/input.c:449 hidinput_hid_event+0x79d/0x2010 drivers/hid/hid-input.c:1631 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:1670 usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1747 dummy_timer+0x11f9/0x32b0 drivers/usb/gadget/udc/dummy_hcd.c:1988 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1474 expire_timers kernel/time/timer.c:1519 [inline] __run_timers.part.0+0x679/0xa80 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+0x29b/0x9c2 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1106 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:finish_task_switch.isra.0+0x323/0xb80 kernel/sched/core.c:4996 Code: d3 c0 24 08 85 c0 75 02 0f 0b 48 85 db 0f 85 25 01 00 00 4c 89 f7 e8 fc f7 ff ff e8 77 6b 2e 00 fb 65 48 8b 1c 25 80 6f 02 00 <48> 8d bb 80 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0018:ffffc9000557fad0 EFLAGS: 00000206 RAX: 000000000000120f RBX: ffff88807c355880 RCX: 1ffffffff1b769b9 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000557fb18 R08: 0000000000000001 R09: 0000000000000001 R10: ffffed10173473e0 R11: 0000000000000001 R12: ffff8880b9b3ac58 R13: ffff8880201cd880 R14: ffff8880b9b39f00 R15: ffff8880b9b3a938 context_switch kernel/sched/core.c:5119 [inline] __schedule+0xa08/0x4b30 kernel/sched/core.c:6428 schedule+0xd2/0x1f0 kernel/sched/core.c:6500 freezable_schedule include/linux/freezer.h:172 [inline] do_nanosleep+0x24e/0x690 kernel/time/hrtimer.c:2044 hrtimer_nanosleep+0x1f9/0x4a0 kernel/time/hrtimer.c:2097 common_nsleep+0xa2/0xc0 kernel/time/posix-timers.c:1227 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1267 [inline] __se_sys_clock_nanosleep kernel/time/posix-timers.c:1245 [inline] __x64_sys_clock_nanosleep+0x2f4/0x430 kernel/time/posix-timers.c:1245 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+0x46/0xb0 RIP: 0033:0x7f23facade31 Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 aa e7 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 e3 e7 ff ff 48 8b 04 24 eb 97 66 2e 0f 1f RSP: 002b:00007f23fb2cfb30 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 00007f23fad9bf60 RCX: 00007f23facade31 RDX: 00007f23fb2cfb70 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f23fad9d960 R08: 0000000000000000 R09: 00007fff45c93080 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000a3057 R13: 00007f23fb2cfc80 R14: 00007f23fad9c100 R15: 000000000000015e Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 aa e7 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 e3 e7 ff ff 48 8b 04 24 eb 97 66 2e 0f 1f RSP: 002b:00007f23fb2cfb30 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 00007f23fad9bf60 RCX: 00007f23facade31 RDX: 00007f23fb2cfb70 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007f23fad9d960 R08: 0000000000000000 R09: 00007fff45c93080 R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000a3057 R13: 00007f23fb2cfc80 R14: 00007f23fad9c100 R15: 000000000000015e task:syz-executor.3 state:S stack:28408 pid:23336 ppid: 3644 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5116 [inline] __schedule+0xa00/0x4b30 kernel/sched/core.c:6428 schedule+0xd2/0x1f0 kernel/sched/core.c:6500 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911 ___down_common kernel/locking/semaphore.c:225 [inline] __down_common+0x363/0x770 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:95 [inline] raw_ioctl_event_fetch drivers/usb/gadget/legacy/raw_gadget.c:557 [inline] raw_ioctl+0xfdc/0x2730 drivers/usb/gadget/legacy/raw_gadget.c:1225 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+0x46/0xb0 RIP: 0033:0x7f23fac88ec7 RSP: 002b:00007f23fbd420d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f23fad9bf60 RCX: 00007f23fac88ec7 RDX: 00007f23fbd43110 RSI: 0000000080085502 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000022000 task:syz-executor.3 state:S stack:28408 pid:23423 ppid: 3644 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5116 [inline] __schedule+0xa00/0x4b30 kernel/sched/core.c:6428 schedule+0xd2/0x1f0 kernel/sched/core.c:6500 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911 do_wait_for_common kernel/sched/completion.c:85 [inline] __wait_for_common+0x378/0x530 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_ep_io+0x5e0/0xb10 drivers/usb/gadget/legacy/raw_gadget.c:1040 raw_ioctl_ep_write drivers/usb/gadget/legacy/raw_gadget.c:1068 [inline] raw_ioctl+0x943/0x2730 drivers/usb/gadget/legacy/raw_gadget.c:1240 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+0x46/0xb0 RIP: 0033:0x7f23fac88ec7 RSP: 002b:00007f23fbd220f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000000000bd RCX: 00007f23fac88ec7 RDX: 00007f23fbd22120 RSI: 0000000040085507 RDI: 0000000000000003 RBP: 0000000020000000 R08: 00007f23fb2d0020 R09: 0000000000000001 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f23fbd23300 R15: 0000000000022000 task:syz-executor.3 state:S stack:29432 pid:23424 ppid: 3644 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5116 [inline] __schedule+0xa00/0x4b30 kernel/sched/core.c:6428 schedule+0xd2/0x1f0 kernel/sched/core.c:6500 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue+0x144/0x3b0 kernel/futex/waitwake.c:355 futex_wait+0x2c9/0x670 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+0x46/0xb0 RIP: 0033:0x7f23fac89109 RSP: 002b:00007f23fbd02218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f23fad9c108 RCX: 00007f23fac89109 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f23fad9c108 RBP: 00007f23fad9c100 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f23fad9c10c R13: 00007f23fb2cfb1f R14: 00007f23fbd02300 R15: 0000000000022000 task:syz-executor.2 state:R running task stack:27816 pid:23406 ppid: 3749 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5116 [inline] __schedule+0xa00/0x4b30 kernel/sched/core.c:6428 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6736 irqentry_exit+0x31/0x80 kernel/entry/common.c:428 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:arch_stack_walk+0x6/0xe0 arch/x86/kernel/stacktrace.c:17 Code: 31 4c 08 e6 89 eb c6 e6 8b eb c2 e6 82 89 fa ee ee 8d 57 01 ee ee eb cd e6 81 eb f1 e6 87 eb ed e6 83 eb e9 55 48 89 e5 41 56 <49> 89 d6 41 55 49 89 cd 41 54 49 89 f4 53 48 89 fb 48 83 ec 68 65 RSP: 0018:ffffc900058df710 EFLAGS: 00000246 RAX: 0000000000000000 RBX: fffff52000b1bee5 RCX: 0000000000000000 RDX: ffff8880201cd880 RSI: ffffc900058df748 RDI: ffffffff81696040 RBP: ffffc900058df718 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000002800 R13: dffffc0000000000 R14: dffffc0000000000 R15: 0000009ad25d86fe stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122 save_stack+0x151/0x1e0 mm/page_owner.c:127 __reset_page_owner+0x5d/0x180 mm/page_owner.c:148 reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1371 [inline] free_pcp_prepare+0x549/0xd20 mm/page_alloc.c:1421 free_unref_page_prepare mm/page_alloc.c:3343 [inline] free_unref_page_list+0x16f/0xf80 mm/page_alloc.c:3475 release_pages+0xff1/0x2290 mm/swap.c:980 __pagevec_release+0x77/0x100 mm/swap.c:1000 pagevec_release include/linux/pagevec.h:82 [inline] folio_batch_release include/linux/pagevec.h:146 [inline] truncate_inode_pages_range+0x319/0x1530 mm/truncate.c:373 kill_bdev block/bdev.c:77 [inline] blkdev_flush_mapping+0x18f/0x3c0 block/bdev.c:663 blkdev_put_whole+0xd1/0xf0 block/bdev.c:694 blkdev_put+0x226/0x770 block/bdev.c:954 blkdev_close+0x64/0x80 block/fops.c:495 __fput+0x277/0x9d0 fs/file_table.c:317 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+0x23c/0x250 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+0x46/0xb0 RIP: 0033:0x7ff050c3bd4b RSP: 002b:00007ff0512cfb80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007ff050c3bd4b RDX: 0000001b2df20000 RSI: 00007ff050c00000 RDI: 0000000000000003 RBP: 00007ff050d9d960 R08: 0000000000000000 R09: 00000000f8c351c7 R10: 00007fffe0193090 R11: 0000000000000293 R12: 00000000000a24d5 R13: 00007ff0512cfc80 R14: 00007ff0512cfca0 R15: 0000000000000032 task:syz-executor.2 state:R running task stack:28280 pid:23408 ppid: 3749 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5116 [inline] __schedule+0xa00/0x4b30 kernel/sched/core.c:6428 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:6736 irqentry_exit+0x31/0x80 kernel/entry/common.c:428 asm_sysvec_reschedule_ipi+0x1b/0x20 arch/x86/include/asm/idtentry.h:654 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:166 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x60 kernel/kcov.c:200 Code: 48 89 ef 5d e9 81 21 4c 00 5d be 03 00 00 00 e9 36 ca 81 02 66 0f 1f 44 00 00 48 8b be a8 01 00 00 e8 b4 ff ff ff 31 c0 c3 90 <65> 8b 05 39 fd 87 7e 89 c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b RSP: 0018:ffffc900058afc08 EFLAGS: 00000246 RAX: 0000000000040000 RBX: 0000000000000200 RCX: ffffc9000ee6d000 RDX: 0000000000040000 RSI: ffffffff814dc80d RDI: 0000000000000007 RBP: 0000000000000008 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000200 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000001 R14: ffff888011865000 R15: 0000000000001000 queue_work_on+0xb3/0x110 kernel/workqueue.c:1550 queue_work include/linux/workqueue.h:502 [inline] snd_virmidi_output_trigger+0xe7/0x130 sound/core/seq/seq_virmidi.c:171 snd_rawmidi_output_trigger sound/core/rawmidi.c:186 [inline] snd_rawmidi_output_trigger sound/core/rawmidi.c:182 [inline] snd_rawmidi_kernel_write1+0x548/0x870 sound/core/rawmidi.c:1502 snd_rawmidi_write+0x273/0xb90 sound/core/rawmidi.c:1555 vfs_write+0x269/0xac0 fs/read_write.c:589 ksys_write+0x1e8/0x250 fs/read_write.c:644 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+0x46/0xb0 RIP: 0033:0x7ff050c89109 RSP: 002b:00007ff051cfe168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ff050d9bf60 RCX: 00007ff050c89109 RDX: 00000000fffffd2c RSI: 0000000020000000 RDI: 0000000000000005 RBP: 00007ff050ce305d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ff0512cfb1f R14: 00007ff051cfe300 R15: 0000000000022000 task:syz-executor.2 state:S stack:25000 pid:23418 ppid: 3749 flags:0x00000000 Call Trace: context_switch kernel/sched/core.c:5116 [inline] __schedule+0xa00/0x4b30 kernel/sched/core.c:6428 schedule+0xd2/0x1f0 kernel/sched/core.c:6500 freezable_schedule include/linux/freezer.h:172 [inline] futex_wait_queue+0x144/0x3b0 kernel/futex/waitwake.c:355 futex_wait+0x2c9/0x670 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+0x46/0xb0 RIP: 0033:0x7ff050c89109 RSP: 002b:00007ff04fbfe218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007ff050d9c038 RCX: 00007ff050c89109 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff050d9c038 RBP: 00007ff050d9c030 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff050d9c03c R13: 00007ff0512cfb1f R14: 00007ff04fbfe300 R15: 0000000000022000 INFO: lockdep is turned off. ---------------- Code disassembly (best guess): 0: d3 c0 rol %cl,%eax 2: 24 08 and $0x8,%al 4: 85 c0 test %eax,%eax 6: 75 02 jne 0xa 8: 0f 0b ud2 a: 48 85 db test %rbx,%rbx d: 0f 85 25 01 00 00 jne 0x138 13: 4c 89 f7 mov %r14,%rdi 16: e8 fc f7 ff ff callq 0xfffff817 1b: e8 77 6b 2e 00 callq 0x2e6b97 20: fb sti 21: 65 48 8b 1c 25 80 6f mov %gs:0x26f80,%rbx 28: 02 00 * 2a: 48 8d bb 80 15 00 00 lea 0x1580(%rbx),%rdi <-- trapping instruction 31: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 38: fc ff df 3b: 48 89 fa mov %rdi,%rdx 3e: 48 rex.W 3f: c1 .byte 0xc1