cm109 3-1:0.8: cm109_urb_ctl_callback: usb_submit_urb (urb_irq) failed -90 ======================================================== WARNING: possible irq lock inversion dependency detected 6.11.0-rc6-syzkaller-00183-gb831f83e40a2 #0 Not tainted -------------------------------------------------------- syz.0.3785/14126 just changed the state of lock: ffff888021682230 (&dev->event_lock#2){..-.}-{2:2}, at: input_inject_event+0xc5/0x340 drivers/input/input.c:423 but this lock took another, SOFTIRQ-READ-unsafe lock in the past: (tasklist_lock){.+.+}-{2:2} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Chain exists of: &dev->event_lock#2 --> &new->fa_lock --> tasklist_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(tasklist_lock); local_irq_disable(); lock(&dev->event_lock#2); lock(&new->fa_lock); lock(&dev->event_lock#2); *** DEADLOCK *** 5 locks held by syz.0.3785/14126: #0: ffff888041b61498 (&mm->mmap_lock){++++}-{3:3}, at: mmap_read_lock include/linux/mmap_lock.h:144 [inline] #0: ffff888041b61498 (&mm->mmap_lock){++++}-{3:3}, at: exit_mmap+0x159/0xc80 mm/mmap.c:3396 #1: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #1: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #1: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: __pte_offset_map+0x82/0x380 mm/pgtable-generic.c:287 #2: ffff888027c755b8 (ptlock_ptr(ptdesc)#2){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline] #2: ffff888027c755b8 (ptlock_ptr(ptdesc)#2){+.+.}-{2:2}, at: __pte_offset_map_lock+0x1ba/0x300 mm/pgtable-generic.c:375 #3: ffffc90000007c00 (drivers/tty/vt/keyboard.c:274){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 kernel/time/timer.c:1789 #4: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #4: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #4: ffffffff8e738320 (rcu_read_lock){....}-{1:2}, at: input_handler_for_each_handle+0x29/0x1d0 drivers/input/input.c:2676 the shortest dependencies between 2nd lock and 1st lock: -> (tasklist_lock){.+.+}-{2:2} { HARDIRQ-ON-R at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228 __do_wait+0x12d/0x850 kernel/exit.c:1591 do_wait+0x1e9/0x560 kernel/exit.c:1635 kernel_wait+0xe9/0x240 kernel/exit.c:1811 call_usermodehelper_exec_sync kernel/umh.c:137 [inline] call_usermodehelper_exec_work+0xbd/0x230 kernel/umh.c:164 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 SOFTIRQ-ON-R at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228 __do_wait+0x12d/0x850 kernel/exit.c:1591 do_wait+0x1e9/0x560 kernel/exit.c:1635 kernel_wait+0xe9/0x240 kernel/exit.c:1811 call_usermodehelper_exec_sync kernel/umh.c:137 [inline] call_usermodehelper_exec_work+0xbd/0x230 kernel/umh.c:164 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INITIAL USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline] _raw_write_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:326 copy_process+0x228b/0x3dc0 kernel/fork.c:2500 kernel_clone+0x223/0x880 kernel/fork.c:2781 user_mode_thread+0x132/0x1a0 kernel/fork.c:2859 rest_init+0x23/0x300 init/main.c:712 start_kernel+0x47a/0x500 init/main.c:1103 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507 x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488 common_startup_64+0x13e/0x147 INITIAL READ USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228 __do_wait+0x12d/0x850 kernel/exit.c:1591 do_wait+0x1e9/0x560 kernel/exit.c:1635 kernel_wait+0xe9/0x240 kernel/exit.c:1811 call_usermodehelper_exec_sync kernel/umh.c:137 [inline] call_usermodehelper_exec_work+0xbd/0x230 kernel/umh.c:164 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 } ... key at: [] tasklist_lock+0x18/0x40 ... acquired at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228 send_sigio+0xfc/0x360 fs/fcntl.c:830 dnotify_handle_event+0x13c/0x440 fs/notify/dnotify/dnotify.c:114 fsnotify_handle_event fs/notify/fsnotify.c:347 [inline] send_to_group fs/notify/fsnotify.c:395 [inline] fsnotify+0x18ab/0x1f70 fs/notify/fsnotify.c:604 fsnotify_parent include/linux/fsnotify.h:99 [inline] fsnotify_dentry include/linux/fsnotify.h:108 [inline] fsnotify_change+0x24f/0x2a0 include/linux/fsnotify.h:450 notify_change+0xc0c/0xe90 fs/attr.c:508 chmod_common+0x2ab/0x4c0 fs/open.c:654 vfs_fchmod fs/open.c:670 [inline] __do_sys_fchmod fs/open.c:679 [inline] __se_sys_fchmod fs/open.c:673 [inline] __x64_sys_fchmod+0xf8/0x160 fs/open.c:673 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> (&f->f_owner.lock){....}-{2:2} { INITIAL USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline] _raw_write_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:326 f_modown+0x38/0x340 fs/fcntl.c:93 __f_setown fs/fcntl.c:112 [inline] f_setown+0x14f/0x200 fs/fcntl.c:140 do_fcntl+0x67d/0x1730 fs/fcntl.c:412 __do_sys_fcntl fs/fcntl.c:492 [inline] __se_sys_fcntl+0xd2/0x1c0 fs/fcntl.c:477 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f INITIAL READ USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 send_sigio+0x33/0x360 fs/fcntl.c:816 kill_fasync_rcu fs/fcntl.c:1035 [inline] kill_fasync+0x23a/0x4d0 fs/fcntl.c:1049 pipe_release+0x1bf/0x330 fs/pipe.c:738 __fput+0x24a/0x8a0 fs/file_table.c:422 task_work_run+0x24f/0x310 kernel/task_work.c:228 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+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f } ... key at: [] init_file.__key+0x0/0x20 ... acquired at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 send_sigio+0x33/0x360 fs/fcntl.c:816 kill_fasync_rcu fs/fcntl.c:1035 [inline] kill_fasync+0x23a/0x4d0 fs/fcntl.c:1049 pipe_release+0x1bf/0x330 fs/pipe.c:738 __fput+0x24a/0x8a0 fs/file_table.c:422 task_work_run+0x24f/0x310 kernel/task_work.c:228 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+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> (&new->fa_lock){....}-{2:2} { INITIAL USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline] _raw_write_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:326 fasync_remove_entry+0xff/0x1d0 fs/fcntl.c:905 pipe_fasync+0x10b/0x1f0 fs/pipe.c:756 __fput+0x73e/0x8a0 fs/file_table.c:419 task_work_run+0x24f/0x310 kernel/task_work.c:228 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+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f INITIAL READ USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 kill_fasync_rcu fs/fcntl.c:1028 [inline] kill_fasync+0x19e/0x4d0 fs/fcntl.c:1049 pipe_release+0x1bf/0x330 fs/pipe.c:738 __fput+0x24a/0x8a0 fs/file_table.c:422 task_work_run+0x24f/0x310 kernel/task_work.c:228 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+0x168/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f } ... key at: [] fasync_insert_entry.__key+0x0/0x20 ... acquired at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 kill_fasync_rcu fs/fcntl.c:1028 [inline] kill_fasync+0x19e/0x4d0 fs/fcntl.c:1049 mousedev_notify_readers+0x719/0xc80 drivers/input/mousedev.c:309 mousedev_event+0x5d9/0x1390 drivers/input/mousedev.c:394 input_handler_events_default+0x107/0x1c0 drivers/input/input.c:2552 input_pass_values+0x286/0x860 drivers/input/input.c:126 input_event_dispose+0x30f/0x600 drivers/input/input.c:341 input_handle_event+0xa71/0xbe0 drivers/input/input.c:369 input_inject_event+0x22f/0x340 drivers/input/input.c:428 evdev_write+0x672/0x7c0 drivers/input/evdev.c:521 vfs_write+0x2a2/0xc90 fs/read_write.c:588 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> (&dev->event_lock#2){..-.}-{2:2} { IN-SOFTIRQ-W at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 input_inject_event+0xc5/0x340 drivers/input/input.c:423 kd_sound_helper+0x101/0x210 drivers/tty/vt/keyboard.c:256 input_handler_for_each_handle+0x103/0x1d0 drivers/input/input.c:2679 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 __sanitizer_cov_trace_pc+0x0/0x70 __folio_rmap_sanity_checks+0x61/0x670 include/linux/rmap.h:201 __folio_remove_rmap mm/rmap.c:1518 [inline] folio_remove_rmap_ptes+0x3d/0x490 mm/rmap.c:1599 zap_present_folio_ptes mm/memory.c:1517 [inline] zap_present_ptes mm/memory.c:1576 [inline] zap_pte_range mm/memory.c:1618 [inline] zap_pmd_range mm/memory.c:1736 [inline] zap_pud_range mm/memory.c:1765 [inline] zap_p4d_range mm/memory.c:1786 [inline] unmap_page_range+0x1b93/0x42c0 mm/memory.c:1807 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897 exit_mmap+0x264/0xc80 mm/mmap.c:3412 __mmput+0x115/0x380 kernel/fork.c:1345 exit_mm+0x220/0x310 kernel/exit.c:571 do_exit+0x9b2/0x27f0 kernel/exit.c:869 do_group_exit+0x207/0x2c0 kernel/exit.c:1031 get_signal+0x16a1/0x1740 kernel/signal.c:2917 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f INITIAL USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 input_inject_event+0xc5/0x340 drivers/input/input.c:423 kbd_led_trigger_activate+0xb8/0x100 drivers/tty/vt/keyboard.c:1036 led_trigger_set+0x582/0x9c0 drivers/leds/led-triggers.c:212 led_match_default_trigger drivers/leds/led-triggers.c:269 [inline] led_trigger_set_default+0x229/0x260 drivers/leds/led-triggers.c:287 led_classdev_register_ext+0x6e6/0x8a0 drivers/leds/led-class.c:555 led_classdev_register include/linux/leds.h:273 [inline] input_leds_connect+0x489/0x630 drivers/input/input-leds.c:145 input_attach_handler drivers/input/input.c:1027 [inline] input_register_device+0xd3b/0x1110 drivers/input/input.c:2473 atkbd_connect+0x752/0xa00 drivers/input/keyboard/atkbd.c:1342 serio_connect_driver drivers/input/serio/serio.c:44 [inline] serio_driver_probe+0x7f/0xa0 drivers/input/serio/serio.c:775 really_probe+0x2b8/0xad0 drivers/base/dd.c:657 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:799 driver_probe_device+0x50/0x430 drivers/base/dd.c:829 __driver_attach+0x45f/0x710 drivers/base/dd.c:1215 bus_for_each_dev+0x239/0x2b0 drivers/base/bus.c:368 serio_attach_driver drivers/input/serio/serio.c:804 [inline] serio_handle_event+0x1c7/0x920 drivers/input/serio/serio.c:224 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 } ... key at: [] input_allocate_device.__key.5+0x0/0x20 ... acquired at: mark_lock+0x223/0x350 kernel/locking/lockdep.c:4677 __lock_acquire+0xbf9/0x2040 kernel/locking/lockdep.c:5096 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 input_inject_event+0xc5/0x340 drivers/input/input.c:423 kd_sound_helper+0x101/0x210 drivers/tty/vt/keyboard.c:256 input_handler_for_each_handle+0x103/0x1d0 drivers/input/input.c:2679 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 __sanitizer_cov_trace_pc+0x0/0x70 __folio_rmap_sanity_checks+0x61/0x670 include/linux/rmap.h:201 __folio_remove_rmap mm/rmap.c:1518 [inline] folio_remove_rmap_ptes+0x3d/0x490 mm/rmap.c:1599 zap_present_folio_ptes mm/memory.c:1517 [inline] zap_present_ptes mm/memory.c:1576 [inline] zap_pte_range mm/memory.c:1618 [inline] zap_pmd_range mm/memory.c:1736 [inline] zap_pud_range mm/memory.c:1765 [inline] zap_p4d_range mm/memory.c:1786 [inline] unmap_page_range+0x1b93/0x42c0 mm/memory.c:1807 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897 exit_mmap+0x264/0xc80 mm/mmap.c:3412 __mmput+0x115/0x380 kernel/fork.c:1345 exit_mm+0x220/0x310 kernel/exit.c:571 do_exit+0x9b2/0x27f0 kernel/exit.c:869 do_group_exit+0x207/0x2c0 kernel/exit.c:1031 get_signal+0x16a1/0x1740 kernel/signal.c:2917 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f stack backtrace: CPU: 0 UID: 0 PID: 14126 Comm: syz.0.3785 Not tainted 6.11.0-rc6-syzkaller-00183-gb831f83e40a2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 mark_lock_irq+0x80c/0xc20 kernel/locking/lockdep.c:4242 mark_lock+0x223/0x350 kernel/locking/lockdep.c:4677 __lock_acquire+0xbf9/0x2040 kernel/locking/lockdep.c:5096 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 input_inject_event+0xc5/0x340 drivers/input/input.c:423 kd_sound_helper+0x101/0x210 drivers/tty/vt/keyboard.c:256 input_handler_for_each_handle+0x103/0x1d0 drivers/input/input.c:2679 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:209 Code: 89 fb e8 23 00 00 00 48 8b 3d bc 26 75 0c 48 89 de 5b e9 53 75 58 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 c0 d6 03 00 65 8b 15 50 4a RSP: 0018:ffffc90010eaf290 EFLAGS: 00000a87 RAX: 0000000000000000 RBX: ffffea0001a676b0 RCX: ffff888026213c00 RDX: ffff888026213c00 RSI: 0000000000000000 RDI: 0000000080000000 RBP: 0000000000000000 R08: ffffffff81e6ff30 R09: 1ffffd400034ced0 R10: dffffc0000000000 R11: fffff9400034ced1 R12: ffffea0001a67680 R13: ffffea0001a67680 R14: 0000000000000001 R15: 0000000000000000 __folio_rmap_sanity_checks+0x61/0x670 include/linux/rmap.h:201 __folio_remove_rmap mm/rmap.c:1518 [inline] folio_remove_rmap_ptes+0x3d/0x490 mm/rmap.c:1599 zap_present_folio_ptes mm/memory.c:1517 [inline] zap_present_ptes mm/memory.c:1576 [inline] zap_pte_range mm/memory.c:1618 [inline] zap_pmd_range mm/memory.c:1736 [inline] zap_pud_range mm/memory.c:1765 [inline] zap_p4d_range mm/memory.c:1786 [inline] unmap_page_range+0x1b93/0x42c0 mm/memory.c:1807 unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897 exit_mmap+0x264/0xc80 mm/mmap.c:3412 __mmput+0x115/0x380 kernel/fork.c:1345 exit_mm+0x220/0x310 kernel/exit.c:571 do_exit+0x9b2/0x27f0 kernel/exit.c:869 do_group_exit+0x207/0x2c0 kernel/exit.c:1031 get_signal+0x16a1/0x1740 kernel/signal.c:2917 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f98f777cef9 Code: Unable to access opcode bytes at 0x7f98f777cecf. RSP: 002b:00007f98f854a0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f98f7935f88 RCX: 00007f98f777cef9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f98f7935f88 RBP: 00007f98f7935f80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f98f7935f8c R13: 0000000000000000 R14: 00007ffd3163e830 R15: 00007ffd3163e918 GRED: Unable to relocate VQ 0x0 after dequeue, screwing up backlog GRED: Unable to relocate VQ 0x0 after dequeue, screwing up backlog cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_urb_ctl_callback: urb status -71 cm109 3-1:0.8: cm109_submit_buzz_toggle: usb_submit_urb (urb_ctl) failed -19 ---------------- Code disassembly (best guess): 0: 89 fb mov %edi,%ebx 2: e8 23 00 00 00 call 0x2a 7: 48 8b 3d bc 26 75 0c mov 0xc7526bc(%rip),%rdi # 0xc7526ca e: 48 89 de mov %rbx,%rsi 11: 5b pop %rbx 12: e9 53 75 58 00 jmp 0x58756a 17: 0f 1f 00 nopl (%rax) 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop 28: 90 nop 29: 90 nop * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 48 8b 04 24 mov (%rsp),%rax 32: 65 48 8b 0c 25 c0 d6 mov %gs:0x3d6c0,%rcx 39: 03 00 3b: 65 gs 3c: 8b .byte 0x8b 3d: 15 .byte 0x15 3e: 50 push %rax 3f: 4a rex.WX