Warning: Permanently added '10.128.1.57' (ED25519) to the list of known hosts. executing program [ 51.890065][ T3499] [ 51.892416][ T3499] ===================================================== [ 51.899331][ T3499] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected [ 51.906770][ T3499] 5.15.154-syzkaller #0 Not tainted [ 51.911952][ T3499] ----------------------------------------------------- [ 51.918864][ T3499] syz-executor254/3499 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 51.926916][ T3499] ffffffff8c60a058 (tasklist_lock){.+.+}-{2:2}, at: send_sigio+0xd2/0x330 [ 51.935452][ T3499] [ 51.935452][ T3499] and this task is already holding: [ 51.942801][ T3499] ffff888078c968b8 (&f->f_owner.lock){....}-{2:2}, at: send_sigio+0x2f/0x330 [ 51.951579][ T3499] which would create a new lock dependency: [ 51.957453][ T3499] (&f->f_owner.lock){....}-{2:2} -> (tasklist_lock){.+.+}-{2:2} [ 51.965185][ T3499] [ 51.965185][ T3499] but this new dependency connects a HARDIRQ-irq-safe lock: [ 51.974642][ T3499] (&dev->event_lock#2){-.-.}-{2:2} [ 51.974670][ T3499] [ 51.974670][ T3499] ... which became HARDIRQ-irq-safe at: [ 51.987582][ T3499] lock_acquire+0x1db/0x4f0 [ 51.992183][ T3499] _raw_spin_lock_irqsave+0xd1/0x120 [ 51.997558][ T3499] input_event+0x8a/0xd0 [ 52.001906][ T3499] psmouse_report_standard_packet+0x50/0x200 [ 52.007972][ T3499] psmouse_process_byte+0x45b/0x640 [ 52.013248][ T3499] psmouse_handle_byte+0x46/0x4b0 [ 52.018354][ T3499] psmouse_interrupt+0x697/0x10a0 [ 52.023468][ T3499] serio_interrupt+0x88/0x130 [ 52.028220][ T3499] i8042_interrupt+0x355/0x750 [ 52.033062][ T3499] __handle_irq_event_percpu+0x292/0xa70 [ 52.038774][ T3499] handle_irq_event+0xff/0x2b0 [ 52.043615][ T3499] handle_edge_irq+0x245/0xbf0 [ 52.048457][ T3499] __common_interrupt+0xd7/0x1f0 [ 52.053473][ T3499] common_interrupt+0x4a/0xc0 [ 52.058233][ T3499] asm_common_interrupt+0x22/0x40 [ 52.063352][ T3499] slab_free_freelist_hook+0x5a/0x160 [ 52.068811][ T3499] kmem_cache_free+0x91/0x1f0 [ 52.073589][ T3499] delayed_put_pid+0xbb/0x130 [ 52.078359][ T3499] rcu_core+0xa15/0x1650 [ 52.082799][ T3499] __do_softirq+0x3b3/0x93a [ 52.087400][ T3499] __irq_exit_rcu+0x155/0x240 [ 52.092177][ T3499] irq_exit_rcu+0x5/0x20 [ 52.096509][ T3499] sysvec_apic_timer_interrupt+0x91/0xb0 [ 52.102230][ T3499] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 52.108382][ T3499] __sanitizer_cov_trace_pc+0x0/0x60 [ 52.113750][ T3499] idr_get_free+0x3ed/0xab0 [ 52.118340][ T3499] idr_alloc_cyclic+0x1ec/0x5d0 [ 52.123271][ T3499] __kernfs_new_node+0x124/0x750 [ 52.128287][ T3499] kernfs_new_node+0x136/0x230 [ 52.133129][ T3499] kernfs_create_link+0xa1/0x1f0 [ 52.138146][ T3499] sysfs_do_create_link_sd+0x85/0x100 [ 52.143600][ T3499] module_add_driver+0x12c/0x2c0 [ 52.148652][ T3499] bus_add_driver+0x398/0x600 [ 52.153411][ T3499] driver_register+0x2bf/0x3a0 [ 52.158257][ T3499] usb_register_driver+0x206/0x3d0 [ 52.163582][ T3499] do_one_initcall+0x22b/0x7a0 [ 52.168454][ T3499] do_initcall_level+0x157/0x210 [ 52.173481][ T3499] do_initcalls+0x49/0x90 [ 52.177898][ T3499] kernel_init_freeable+0x425/0x5c0 [ 52.183181][ T3499] kernel_init+0x19/0x290 [ 52.187597][ T3499] ret_from_fork+0x1f/0x30 [ 52.192100][ T3499] [ 52.192100][ T3499] to a HARDIRQ-irq-unsafe lock: [ 52.199116][ T3499] (tasklist_lock){.+.+}-{2:2} [ 52.199144][ T3499] [ 52.199144][ T3499] ... which became HARDIRQ-irq-unsafe at: [ 52.211763][ T3499] ... [ 52.211774][ T3499] lock_acquire+0x1db/0x4f0 [ 52.218962][ T3499] _raw_read_lock+0x32/0x40 [ 52.223550][ T3499] do_wait+0x2a7/0xaf0 [ 52.227817][ T3499] kernel_wait+0xe5/0x230 [ 52.232235][ T3499] call_usermodehelper_exec_work+0xb5/0x220 [ 52.238211][ T3499] process_one_work+0x8a1/0x10c0 [ 52.243229][ T3499] worker_thread+0xaca/0x1280 [ 52.247987][ T3499] kthread+0x3f6/0x4f0 [ 52.252136][ T3499] ret_from_fork+0x1f/0x30 [ 52.256757][ T3499] [ 52.256757][ T3499] other info that might help us debug this: [ 52.256757][ T3499] [ 52.266980][ T3499] Chain exists of: [ 52.266980][ T3499] &dev->event_lock#2 --> &f->f_owner.lock --> tasklist_lock [ 52.266980][ T3499] [ 52.280189][ T3499] Possible interrupt unsafe locking scenario: [ 52.280189][ T3499] [ 52.288495][ T3499] CPU0 CPU1 [ 52.293849][ T3499] ---- ---- [ 52.299199][ T3499] lock(tasklist_lock); [ 52.303439][ T3499] local_irq_disable(); [ 52.310191][ T3499] lock(&dev->event_lock#2); [ 52.317382][ T3499] lock(&f->f_owner.lock); [ 52.324413][ T3499] [ 52.327852][ T3499] lock(&dev->event_lock#2); [ 52.332698][ T3499] [ 52.332698][ T3499] *** DEADLOCK *** [ 52.332698][ T3499] [ 52.340825][ T3499] 6 locks held by syz-executor254/3499: [ 52.346356][ T3499] #0: ffff888024b34460 (sb_writers#5){.+.+}-{0:0}, at: mnt_want_write+0x3b/0x80 [ 52.355492][ T3499] #1: ffffffff8ca3a110 (file_rwsem){.+.+}-{0:0}, at: __break_lease+0x186/0x13b0 [ 52.364617][ T3499] #2: ffff88801ce7c0c8 (&ctx->flc_lock){+.+.}-{2:2}, at: __break_lease+0x193/0x13b0 [ 52.374099][ T3499] #3: ffffffff8c91fae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x5/0x30 [ 52.383407][ T3499] #4: ffff888079d7b018 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x16a/0x490 [ 52.392535][ T3499] #5: ffff888078c968b8 (&f->f_owner.lock){....}-{2:2}, at: send_sigio+0x2f/0x330 [ 52.401790][ T3499] [ 52.401790][ T3499] the dependencies between HARDIRQ-irq-safe lock and the holding lock: [ 52.412181][ T3499] -> (&dev->event_lock#2){-.-.}-{2:2} { [ 52.418024][ T3499] IN-HARDIRQ-W at: [ 52.422269][ T3499] lock_acquire+0x1db/0x4f0 [ 52.428969][ T3499] _raw_spin_lock_irqsave+0xd1/0x120 [ 52.436430][ T3499] input_event+0x8a/0xd0 [ 52.442867][ T3499] psmouse_report_standard_packet+0x50/0x200 [ 52.451365][ T3499] psmouse_process_byte+0x45b/0x640 [ 52.458751][ T3499] psmouse_handle_byte+0x46/0x4b0 [ 52.466422][ T3499] psmouse_interrupt+0x697/0x10a0 [ 52.473634][ T3499] serio_interrupt+0x88/0x130 [ 52.480536][ T3499] i8042_interrupt+0x355/0x750 [ 52.487985][ T3499] __handle_irq_event_percpu+0x292/0xa70 [ 52.495792][ T3499] handle_irq_event+0xff/0x2b0 [ 52.502887][ T3499] handle_edge_irq+0x245/0xbf0 [ 52.509826][ T3499] __common_interrupt+0xd7/0x1f0 [ 52.516941][ T3499] common_interrupt+0x4a/0xc0 [ 52.523798][ T3499] asm_common_interrupt+0x22/0x40 [ 52.531009][ T3499] slab_free_freelist_hook+0x5a/0x160 [ 52.538550][ T3499] kmem_cache_free+0x91/0x1f0 [ 52.545395][ T3499] delayed_put_pid+0xbb/0x130 [ 52.552259][ T3499] rcu_core+0xa15/0x1650 [ 52.558677][ T3499] __do_softirq+0x3b3/0x93a [ 52.565357][ T3499] __irq_exit_rcu+0x155/0x240 [ 52.572206][ T3499] irq_exit_rcu+0x5/0x20 [ 52.578615][ T3499] sysvec_apic_timer_interrupt+0x91/0xb0 [ 52.586441][ T3499] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 52.594595][ T3499] __sanitizer_cov_trace_pc+0x0/0x60 [ 52.602183][ T3499] idr_get_free+0x3ed/0xab0 [ 52.608859][ T3499] idr_alloc_cyclic+0x1ec/0x5d0 [ 52.615889][ T3499] __kernfs_new_node+0x124/0x750 [ 52.623007][ T3499] kernfs_new_node+0x136/0x230 [ 52.629935][ T3499] kernfs_create_link+0xa1/0x1f0 [ 52.637037][ T3499] sysfs_do_create_link_sd+0x85/0x100 [ 52.644575][ T3499] module_add_driver+0x12c/0x2c0 [ 52.651770][ T3499] bus_add_driver+0x398/0x600 [ 52.658615][ T3499] driver_register+0x2bf/0x3a0 [ 52.665542][ T3499] usb_register_driver+0x206/0x3d0 [ 52.672838][ T3499] do_one_initcall+0x22b/0x7a0 [ 52.679765][ T3499] do_initcall_level+0x157/0x210 [ 52.686871][ T3499] do_initcalls+0x49/0x90 [ 52.693383][ T3499] kernel_init_freeable+0x425/0x5c0 [ 52.700748][ T3499] kernel_init+0x19/0x290 [ 52.707245][ T3499] ret_from_fork+0x1f/0x30 [ 52.713823][ T3499] IN-SOFTIRQ-W at: [ 52.718072][ T3499] lock_acquire+0x1db/0x4f0 [ 52.724735][ T3499] _raw_spin_lock_irqsave+0xd1/0x120 [ 52.732186][ T3499] input_event+0x8a/0xd0 [ 52.738607][ T3499] psmouse_report_standard_packet+0x50/0x200 [ 52.746751][ T3499] psmouse_process_byte+0x45b/0x640 [ 52.754141][ T3499] psmouse_handle_byte+0x46/0x4b0 [ 52.761347][ T3499] psmouse_interrupt+0x697/0x10a0 [ 52.768539][ T3499] serio_interrupt+0x88/0x130 [ 52.775384][ T3499] i8042_interrupt+0x355/0x750 [ 52.782396][ T3499] __handle_irq_event_percpu+0x292/0xa70 [ 52.790279][ T3499] handle_irq_event+0xff/0x2b0 [ 52.797207][ T3499] handle_edge_irq+0x245/0xbf0 [ 52.804132][ T3499] __common_interrupt+0xd7/0x1f0 [ 52.811230][ T3499] common_interrupt+0x4a/0xc0 [ 52.818068][ T3499] asm_common_interrupt+0x22/0x40 [ 52.825251][ T3499] slab_free_freelist_hook+0x5a/0x160 [ 52.832794][ T3499] kmem_cache_free+0x91/0x1f0 [ 52.839634][ T3499] delayed_put_pid+0xbb/0x130 [ 52.846473][ T3499] rcu_core+0xa15/0x1650 [ 52.852890][ T3499] __do_softirq+0x3b3/0x93a [ 52.859580][ T3499] __irq_exit_rcu+0x155/0x240 [ 52.866416][ T3499] irq_exit_rcu+0x5/0x20 [ 52.872819][ T3499] sysvec_apic_timer_interrupt+0x91/0xb0 [ 52.880636][ T3499] asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 52.888794][ T3499] __sanitizer_cov_trace_pc+0x0/0x60 [ 52.896243][ T3499] idr_get_free+0x3ed/0xab0 [ 52.902911][ T3499] idr_alloc_cyclic+0x1ec/0x5d0 [ 52.909931][ T3499] __kernfs_new_node+0x124/0x750 [ 52.917043][ T3499] kernfs_new_node+0x136/0x230 [ 52.923971][ T3499] kernfs_create_link+0xa1/0x1f0 [ 52.931071][ T3499] sysfs_do_create_link_sd+0x85/0x100 [ 52.938612][ T3499] module_add_driver+0x12c/0x2c0 [ 52.945726][ T3499] bus_add_driver+0x398/0x600 [ 52.952581][ T3499] driver_register+0x2bf/0x3a0 [ 52.959512][ T3499] usb_register_driver+0x206/0x3d0 [ 52.966834][ T3499] do_one_initcall+0x22b/0x7a0 [ 52.974291][ T3499] do_initcall_level+0x157/0x210 [ 52.981407][ T3499] do_initcalls+0x49/0x90 [ 52.987899][ T3499] kernel_init_freeable+0x425/0x5c0 [ 52.995261][ T3499] kernel_init+0x19/0x290 [ 53.001759][ T3499] ret_from_fork+0x1f/0x30 [ 53.008340][ T3499] INITIAL USE at: [ 53.012487][ T3499] lock_acquire+0x1db/0x4f0 [ 53.019083][ T3499] _raw_spin_lock_irqsave+0xd1/0x120 [ 53.026464][ T3499] input_inject_event+0xc0/0x300 [ 53.033493][ T3499] led_trigger_event+0x64/0xc0 [ 53.040401][ T3499] kbd_led_trigger_activate+0xb9/0x100 [ 53.047943][ T3499] led_trigger_set+0x513/0x930 [ 53.054780][ T3499] led_trigger_set_default+0x1c2/0x200 [ 53.062313][ T3499] led_classdev_register_ext+0x6cf/0x8d0 [ 53.070022][ T3499] input_leds_connect+0x503/0x740 [ 53.077125][ T3499] input_register_device+0xdae/0x1150 [ 53.084577][ T3499] atkbd_connect+0x7a7/0xa70 [ 53.091242][ T3499] serio_driver_probe+0x74/0x90 [ 53.098167][ T3499] really_probe+0x24e/0xb60 [ 53.104767][ T3499] __driver_probe_device+0x1a2/0x3d0 [ 53.112126][ T3499] driver_probe_device+0x50/0x420 [ 53.119222][ T3499] __driver_attach+0x479/0x690 [ 53.126060][ T3499] bus_for_each_dev+0x17c/0x1f0 [ 53.132988][ T3499] serio_handle_event+0x56a/0x8f0 [ 53.140089][ T3499] process_one_work+0x8a1/0x10c0 [ 53.147100][ T3499] worker_thread+0xaca/0x1280 [ 53.153859][ T3499] kthread+0x3f6/0x4f0 [ 53.160007][ T3499] ret_from_fork+0x1f/0x30 [ 53.166525][ T3499] } [ 53.169285][ T3499] ... key at: [] input_allocate_device.__key.6+0x0/0x20 [ 53.178580][ T3499] -> (&client->buffer_lock){....}-{2:2} { [ 53.184479][ T3499] INITIAL USE at: [ 53.188535][ T3499] lock_acquire+0x1db/0x4f0 [ 53.194942][ T3499] _raw_spin_lock+0x2a/0x40 [ 53.201358][ T3499] evdev_pass_values+0xe7/0xb60 [ 53.208110][ T3499] evdev_events+0x198/0x2c0 [ 53.214530][ T3499] input_pass_values+0x873/0x1200 [ 53.221479][ T3499] input_handle_event+0xc9b/0x1600 [ 53.228493][ T3499] input_inject_event+0x1fc/0x300 [ 53.235420][ T3499] evdev_write+0x668/0x7c0 [ 53.241768][ T3499] vfs_write+0x30c/0xe50 [ 53.247916][ T3499] ksys_write+0x1a2/0x2c0 [ 53.254146][ T3499] do_syscall_64+0x3b/0xb0 [ 53.260467][ T3499] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.268265][ T3499] } [ 53.270937][ T3499] ... key at: [] evdev_open.__key.23+0x0/0x20 [ 53.279267][ T3499] ... acquired at: [ 53.283227][ T3499] lock_acquire+0x1db/0x4f0 [ 53.287894][ T3499] _raw_spin_lock+0x2a/0x40 [ 53.292559][ T3499] evdev_pass_values+0xe7/0xb60 [ 53.297590][ T3499] evdev_events+0x198/0x2c0 [ 53.302253][ T3499] input_pass_values+0x873/0x1200 [ 53.307457][ T3499] input_handle_event+0xc9b/0x1600 [ 53.312735][ T3499] input_inject_event+0x1fc/0x300 [ 53.317926][ T3499] evdev_write+0x668/0x7c0 [ 53.322506][ T3499] vfs_write+0x30c/0xe50 [ 53.326915][ T3499] ksys_write+0x1a2/0x2c0 [ 53.331412][ T3499] do_syscall_64+0x3b/0xb0 [ 53.336012][ T3499] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.342072][ T3499] [ 53.344384][ T3499] -> (&new->fa_lock){....}-{2:2} { [ 53.349585][ T3499] INITIAL READ USE at: [ 53.353989][ T3499] lock_acquire+0x1db/0x4f0 [ 53.360651][ T3499] _raw_read_lock_irqsave+0xd9/0x120 [ 53.368137][ T3499] kill_fasync+0x16a/0x490 [ 53.374737][ T3499] evdev_pass_values+0x5ad/0xb60 [ 53.381840][ T3499] evdev_events+0x198/0x2c0 [ 53.388503][ T3499] input_pass_values+0x873/0x1200 [ 53.395697][ T3499] input_handle_event+0xc9b/0x1600 [ 53.402989][ T3499] input_inject_event+0x1fc/0x300 [ 53.410193][ T3499] evdev_write+0x668/0x7c0 [ 53.416786][ T3499] vfs_write+0x30c/0xe50 [ 53.423197][ T3499] ksys_write+0x1a2/0x2c0 [ 53.429701][ T3499] do_syscall_64+0x3b/0xb0 [ 53.436277][ T3499] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.444335][ T3499] } [ 53.446910][ T3499] ... key at: [] fasync_insert_entry.__key+0x0/0x20 [ 53.455667][ T3499] ... acquired at: [ 53.459554][ T3499] lock_acquire+0x1db/0x4f0 [ 53.464230][ T3499] _raw_read_lock_irqsave+0xd9/0x120 [ 53.469705][ T3499] kill_fasync+0x16a/0x490 [ 53.474294][ T3499] evdev_pass_values+0x5ad/0xb60 [ 53.479402][ T3499] evdev_events+0x198/0x2c0 [ 53.484071][ T3499] input_pass_values+0x873/0x1200 [ 53.489258][ T3499] input_handle_event+0xc9b/0x1600 [ 53.494536][ T3499] input_inject_event+0x1fc/0x300 [ 53.499731][ T3499] evdev_write+0x668/0x7c0 [ 53.504317][ T3499] vfs_write+0x30c/0xe50 [ 53.508729][ T3499] ksys_write+0x1a2/0x2c0 [ 53.513225][ T3499] do_syscall_64+0x3b/0xb0 [ 53.517826][ T3499] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.523901][ T3499] [ 53.526218][ T3499] -> (&f->f_owner.lock){....}-{2:2} { [ 53.531603][ T3499] INITIAL USE at: [ 53.535635][ T3499] lock_acquire+0x1db/0x4f0 [ 53.541701][ T3499] _raw_write_lock_irq+0xcf/0x110 [ 53.548290][ T3499] f_modown+0x38/0x340 [ 53.553918][ T3499] generic_setlease+0xf12/0x1390 [ 53.560418][ T3499] fcntl_setlease+0x341/0x3f0 [ 53.566796][ T3499] do_fcntl+0x10a/0x1600 [ 53.572630][ T3499] __se_sys_fcntl+0xd8/0x1b0 [ 53.578787][ T3499] do_syscall_64+0x3b/0xb0 [ 53.584880][ T3499] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.592349][ T3499] INITIAL READ USE at: [ 53.596677][ T3499] lock_acquire+0x1db/0x4f0 [ 53.603172][ T3499] _raw_read_lock_irqsave+0xd9/0x120 [ 53.610481][ T3499] send_sigio+0x2f/0x330 [ 53.616712][ T3499] kill_fasync+0x20c/0x490 [ 53.623118][ T3499] evdev_pass_values+0x5ad/0xb60 [ 53.630181][ T3499] evdev_events+0x198/0x2c0 [ 53.636694][ T3499] input_pass_values+0x873/0x1200 [ 53.643838][ T3499] input_handle_event+0xc9b/0x1600 [ 53.650949][ T3499] input_inject_event+0x1fc/0x300 [ 53.657994][ T3499] evdev_write+0x668/0x7c0 [ 53.664401][ T3499] vfs_write+0x30c/0xe50 [ 53.670654][ T3499] ksys_write+0x1a2/0x2c0 [ 53.676994][ T3499] do_syscall_64+0x3b/0xb0 [ 53.683415][ T3499] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.691333][ T3499] } [ 53.693819][ T3499] ... key at: [] __alloc_file.__key+0x0/0x10 [ 53.701879][ T3499] ... acquired at: [ 53.705720][ T3499] lock_acquire+0x1db/0x4f0 [ 53.710509][ T3499] _raw_read_lock_irqsave+0xd9/0x120 [ 53.715984][ T3499] send_sigio+0x2f/0x330 [ 53.720403][ T3499] kill_fasync+0x20c/0x490 [ 53.725103][ T3499] evdev_pass_values+0x5ad/0xb60 [ 53.730221][ T3499] evdev_events+0x198/0x2c0 [ 53.734909][ T3499] input_pass_values+0x873/0x1200 [ 53.740098][ T3499] input_handle_event+0xc9b/0x1600 [ 53.745371][ T3499] input_inject_event+0x1fc/0x300 [ 53.750559][ T3499] evdev_write+0x668/0x7c0 [ 53.755302][ T3499] vfs_write+0x30c/0xe50 [ 53.759722][ T3499] ksys_write+0x1a2/0x2c0 [ 53.764218][ T3499] do_syscall_64+0x3b/0xb0 [ 53.768833][ T3499] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 53.774911][ T3499] [ 53.777228][ T3499] [ 53.777228][ T3499] the dependencies between the lock to be acquired [ 53.777236][ T3499] and HARDIRQ-irq-unsafe lock: [ 53.790813][ T3499] -> (tasklist_lock){.+.+}-{2:2} { [ 53.795934][ T3499] HARDIRQ-ON-R at: [ 53.799902][ T3499] lock_acquire+0x1db/0x4f0 [ 53.806046][ T3499] _raw_read_lock+0x32/0x40 [ 53.812194][ T3499] do_wait+0x2a7/0xaf0 [ 53.817914][ T3499] kernel_wait+0xe5/0x230 [ 53.823887][ T3499] call_usermodehelper_exec_work+0xb5/0x220 [ 53.831423][ T3499] process_one_work+0x8a1/0x10c0 [ 53.838006][ T3499] worker_thread+0xaca/0x1280 [ 53.844334][ T3499] kthread+0x3f6/0x4f0 [ 53.850066][ T3499] ret_from_fork+0x1f/0x30 [ 53.856125][ T3499] SOFTIRQ-ON-R at: [ 53.860116][ T3499] lock_acquire+0x1db/0x4f0 [ 53.866262][ T3499] _raw_read_lock+0x32/0x40 [ 53.872427][ T3499] do_wait+0x2a7/0xaf0 [ 53.878144][ T3499] kernel_wait+0xe5/0x230 [ 53.884130][ T3499] call_usermodehelper_exec_work+0xb5/0x220 [ 53.891675][ T3499] process_one_work+0x8a1/0x10c0 [ 53.898263][ T3499] worker_thread+0xaca/0x1280 [ 53.904585][ T3499] kthread+0x3f6/0x4f0 [ 53.910313][ T3499] ret_from_fork+0x1f/0x30 [ 53.916380][ T3499] INITIAL USE at: [ 53.920271][ T3499] lock_acquire+0x1db/0x4f0 [ 53.926351][ T3499] _raw_write_lock_irq+0xcf/0x110 [ 53.932936][ T3499] copy_process+0x22be/0x3ef0 [ 53.939172][ T3499] kernel_clone+0x210/0x960 [ 53.945229][ T3499] kernel_thread+0x168/0x1e0 [ 53.951385][ T3499] rest_init+0x21/0x330 [ 53.957097][ T3499] start_kernel+0x48c/0x540 [ 53.963152][ T3499] secondary_startup_64_no_verify+0xb1/0xbb [ 53.970602][ T3499] INITIAL READ USE at: [ 53.974956][ T3499] lock_acquire+0x1db/0x4f0 [ 53.981456][ T3499] _raw_read_lock+0x32/0x40 [ 53.987973][ T3499] do_wait+0x2a7/0xaf0 [ 53.994033][ T3499] kernel_wait+0xe5/0x230 [ 54.000351][ T3499] call_usermodehelper_exec_work+0xb5/0x220 [ 54.008236][ T3499] process_one_work+0x8a1/0x10c0 [ 54.015162][ T3499] worker_thread+0xaca/0x1280 [ 54.021826][ T3499] kthread+0x3f6/0x4f0 [ 54.027881][ T3499] ret_from_fork+0x1f/0x30 [ 54.034303][ T3499] } [ 54.036806][ T3499] ... key at: [] tasklist_lock+0x18/0x40 [ 54.044551][ T3499] ... acquired at: [ 54.048352][ T3499] lock_acquire+0x1db/0x4f0 [ 54.053021][ T3499] _raw_read_lock+0x32/0x40 [ 54.057799][ T3499] send_sigio+0xd2/0x330 [ 54.062226][ T3499] kill_fasync+0x20c/0x490 [ 54.066824][ T3499] lease_break_callback+0x22/0x30 [ 54.072021][ T3499] __break_lease+0x4d1/0x13b0 [ 54.076866][ T3499] vfs_truncate+0x267/0x3a0 [ 54.081540][ T3499] do_sys_truncate+0xda/0x190 [ 54.086399][ T3499] do_syscall_64+0x3b/0xb0 [ 54.090982][ T3499] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 54.097047][ T3499] [ 54.099362][ T3499] [ 54.099362][ T3499] stack backtrace: [ 54.105237][ T3499] CPU: 0 PID: 3499 Comm: syz-executor254 Not tainted 5.15.154-syzkaller #0 [ 54.113811][ T3499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 54.123861][ T3499] Call Trace: [ 54.127134][ T3499] [ 54.130056][ T3499] dump_stack_lvl+0x1e3/0x2d0 [ 54.134727][ T3499] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 54.140359][ T3499] ? panic+0x850/0x850 [ 54.144437][ T3499] ? print_shortest_lock_dependencies+0xee/0x150 [ 54.150768][ T3499] validate_chain+0x4d01/0x5930 [ 54.155619][ T3499] ? reacquire_held_locks+0x660/0x660 [ 54.160992][ T3499] ? __lock_acquire+0x1295/0x1ff0 [ 54.166008][ T3499] ? mark_lock+0x98/0x340 [ 54.170349][ T3499] __lock_acquire+0x1295/0x1ff0 [ 54.175232][ T3499] lock_acquire+0x1db/0x4f0 [ 54.179734][ T3499] ? send_sigio+0xd2/0x330 [ 54.184146][ T3499] ? read_lock_is_recursive+0x10/0x10 [ 54.189515][ T3499] ? read_lock_is_recursive+0x10/0x10 [ 54.194889][ T3499] ? do_raw_read_lock+0x38/0x80 [ 54.199750][ T3499] ? _raw_read_lock_irqsave+0xe5/0x120 [ 54.205293][ T3499] ? _raw_read_lock+0x40/0x40 [ 54.209977][ T3499] ? _raw_read_lock_irqsave+0xe5/0x120 [ 54.215435][ T3499] ? _raw_read_lock+0x40/0x40 [ 54.220205][ T3499] _raw_read_lock+0x32/0x40 [ 54.224708][ T3499] ? send_sigio+0xd2/0x330 [ 54.229122][ T3499] send_sigio+0xd2/0x330 [ 54.233380][ T3499] kill_fasync+0x20c/0x490 [ 54.237792][ T3499] lease_break_callback+0x22/0x30 [ 54.242819][ T3499] __break_lease+0x4d1/0x13b0 [ 54.247501][ T3499] ? lease_modify+0x380/0x380 [ 54.252187][ T3499] ? privileged_wrt_inode_uidgid+0x210/0x260 [ 54.258174][ T3499] ? generic_permission+0x2f8/0x4f0 [ 54.263380][ T3499] ? inode_permission+0xf7/0x450 [ 54.268313][ T3499] ? bpf_lsm_inode_permission+0x5/0x10 [ 54.273799][ T3499] ? security_inode_permission+0xad/0xf0 [ 54.279432][ T3499] vfs_truncate+0x267/0x3a0 [ 54.283931][ T3499] do_sys_truncate+0xda/0x190 [ 54.288603][ T3499] ? break_lease+0xd0/0xd0 [ 54.293032][ T3499] ? syscall_enter_from_user_mode+0x2e/0x240 [ 54.299017][ T3499] ? lockdep_hardirqs_on+0x94/0x130 [ 54.304207][ T3499] ? syscall_enter_from_user_mode+0x2e/0x240 [ 54.310459][ T3499] do_syscall_64+0x3b/0xb0 [ 54.314869][ T3499] ? clear_bhb_loop+0x15/0x70 [ 54.319539][ T3499] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 54.325425][ T3499] RIP: 0033:0x7fb9c62ab939 [ 54.329831][ T3499] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 executing program executing program executing program executing program executing program [ 54.349426][ T3499] RSP: 002b:00007fff85e171c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 54.357833][ T3499] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb9c62ab939 [ 54.365794][ T3499] RDX: 00007fb9c62ab939 RSI: 0000000000000000 RDI: 0000000020000040 [ 54.373883][ T3499] RBP: 00007fb9c631e5f0 R08: 0000000000000006 R09: 0000000000000006 [ 54.381858][ T3499] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000001 [ 54.389819][ T3499] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 54.397791][ T3499] executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program