[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.25' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 76.735370][ T36] audit: type=1400 audit(1629625026.384:8): avc: denied { execmem } for pid=8439 comm="syz-executor707" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 76.739769][ T8439] [ 76.758281][ T8439] ===================================================== [ 76.758289][ T8439] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected [ 76.758299][ T8439] 5.14.0-rc6-syzkaller #0 Not tainted [ 76.758309][ T8439] ----------------------------------------------------- [ 76.758314][ T8439] syz-executor707/8439 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 76.758336][ T8439] ffff888021eb2478 (&f->f_owner.lock){.+.+}-{2:2}, at: send_sigio+0x24/0x380 [ 76.758393][ T8439] [ 76.758393][ T8439] and this task is already holding: [ 76.758398][ T8439] ffff88803c1c19f0 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x132/0x460 [ 76.809131][ T8439] which would create a new lock dependency: [ 76.809137][ T8439] (&new->fa_lock){....}-{2:2} -> (&f->f_owner.lock){.+.+}-{2:2} [ 76.809182][ T8439] [ 76.809182][ T8439] but this new dependency connects a HARDIRQ-irq-safe lock: [ 76.809191][ T8439] (&dev->event_lock){-...}-{2:2} [ 76.809209][ T8439] [ 76.809209][ T8439] ... which became HARDIRQ-irq-safe at: [ 76.809216][ T8439] lock_acquire+0x1ab/0x510 [ 76.809235][ T8439] _raw_spin_lock_irqsave+0x39/0x50 [ 76.809263][ T8439] input_event+0x7b/0xb0 [ 76.809281][ T8439] psmouse_report_standard_buttons+0x2c/0x80 [ 76.809307][ T8439] psmouse_process_byte+0x1e1/0x890 [ 76.878985][ T8439] psmouse_handle_byte+0x41/0x1b0 [ 76.879017][ T8439] psmouse_interrupt+0x304/0xf00 [ 76.879041][ T8439] serio_interrupt+0x88/0x150 [ 76.879061][ T8439] i8042_interrupt+0x27a/0x520 [ 76.879082][ T8439] __handle_irq_event_percpu+0x303/0x8f0 [ 76.879104][ T8439] handle_irq_event+0x102/0x280 [ 76.879124][ T8439] handle_edge_irq+0x25f/0xd00 [ 76.879147][ T8439] __common_interrupt+0x9d/0x210 [ 76.879169][ T8439] common_interrupt+0x9f/0xd0 [ 76.879193][ T8439] asm_common_interrupt+0x1e/0x40 [ 76.929040][ T8439] _raw_spin_unlock_irqrestore+0x38/0x70 [ 76.929065][ T8439] i8042_command+0x12e/0x150 [ 76.929087][ T8439] i8042_aux_write+0xd7/0x120 [ 76.929107][ T8439] ps2_do_sendbyte+0x2cf/0x710 [ 76.929129][ T8439] ps2_sendbyte+0x58/0x150 [ 76.929149][ T8439] cypress_ps2_sendbyte+0x2e/0x160 [ 76.929170][ T8439] cypress_send_ext_cmd+0x1d0/0x8e0 [ 76.963936][ T8439] cypress_detect+0x75/0x190 [ 76.963960][ T8439] psmouse_try_protocol+0x211/0x370 [ 76.963983][ T8439] psmouse_extensions+0x557/0x930 [ 76.964006][ T8439] psmouse_switch_protocol+0x52a/0x740 [ 76.964029][ T8439] psmouse_connect+0x5e9/0xfd0 [ 76.964046][ T8439] serio_driver_probe+0x72/0xa0 [ 76.964066][ T8439] really_probe+0x23c/0xcd0 [ 76.964087][ T8439] __driver_probe_device+0x338/0x4d0 [ 76.964108][ T8439] driver_probe_device+0x4c/0x1a0 [ 76.964129][ T8439] __driver_attach+0x22d/0x4e0 [ 76.964149][ T8439] bus_for_each_dev+0x147/0x1d0 [ 76.964168][ T8439] serio_handle_event+0x5f6/0xa30 [ 77.024230][ T8439] process_one_work+0x98d/0x1630 [ 77.024257][ T8439] worker_thread+0x658/0x11f0 [ 77.024278][ T8439] kthread+0x3e5/0x4d0 [ 77.024298][ T8439] ret_from_fork+0x1f/0x30 [ 77.024319][ T8439] [ 77.024319][ T8439] to a HARDIRQ-irq-unsafe lock: [ 77.024326][ T8439] (&f->f_owner.lock){.+.+}-{2:2} [ 77.024347][ T8439] [ 77.024347][ T8439] ... which became HARDIRQ-irq-unsafe at: [ 77.024354][ T8439] ... [ 77.024358][ T8439] lock_acquire+0x1ab/0x510 [ 77.069666][ T8439] _raw_read_lock+0x5b/0x70 [ 77.069688][ T8439] do_fcntl+0x8af/0x1210 [ 77.069707][ T8439] __x64_sys_fcntl+0x165/0x1e0 [ 77.069725][ T8439] do_syscall_64+0x35/0xb0 [ 77.069747][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 77.069768][ T8439] [ 77.069768][ T8439] other info that might help us debug this: [ 77.069768][ T8439] [ 77.069774][ T8439] Chain exists of: [ 77.069774][ T8439] &dev->event_lock --> &new->fa_lock --> &f->f_owner.lock [ 77.069774][ T8439] [ 77.069806][ T8439] Possible interrupt unsafe locking scenario: [ 77.069806][ T8439] [ 77.069811][ T8439] CPU0 CPU1 [ 77.069815][ T8439] ---- ---- [ 77.069820][ T8439] lock(&f->f_owner.lock); [ 77.069831][ T8439] local_irq_disable(); [ 77.069836][ T8439] lock(&dev->event_lock); [ 77.069849][ T8439] lock(&new->fa_lock); [ 77.069862][ T8439] [ 77.069865][ T8439] lock(&dev->event_lock); [ 77.069877][ T8439] [ 77.069877][ T8439] *** DEADLOCK *** [ 77.069877][ T8439] [ 77.069881][ T8439] 8 locks held by syz-executor707/8439: [ 77.069893][ T8439] #0: ffff88802433e110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x1d3/0x760 [ 77.183172][ T8439] #1: ffff88802405a230 (&dev->event_lock){-...}-{2:2}, at: input_inject_event+0xa6/0x320 [ 77.183222][ T8439] #2: ffffffff8b979840 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0x92/0x320 [ 77.212039][ T8439] #3: ffffffff8b979840 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x710 [ 77.222106][ T8439] #4: ffffffff8b979840 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x59/0x3e0 [ 77.231216][ T8439] #5: ffff88803c244028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x970 [ 77.241974][ T8439] #6: ffffffff8b979840 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x3d/0x460 [ 77.250988][ T8439] #7: ffff88803c1c19f0 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x132/0x460 [ 77.260090][ T8439] [ 77.260090][ T8439] the dependencies between HARDIRQ-irq-safe lock and the holding lock: [ 77.270465][ T8439] -> (&dev->event_lock){-...}-{2:2} { [ 77.275993][ T8439] IN-HARDIRQ-W at: [ 77.280121][ T8439] lock_acquire+0x1ab/0x510 [ 77.286601][ T8439] _raw_spin_lock_irqsave+0x39/0x50 [ 77.293774][ T8439] input_event+0x7b/0xb0 [ 77.299992][ T8439] psmouse_report_standard_buttons+0x2c/0x80 [ 77.307953][ T8439] psmouse_process_byte+0x1e1/0x890 [ 77.315130][ T8439] psmouse_handle_byte+0x41/0x1b0 [ 77.322135][ T8439] psmouse_interrupt+0x304/0xf00 [ 77.329051][ T8439] serio_interrupt+0x88/0x150 [ 77.335718][ T8439] i8042_interrupt+0x27a/0x520 [ 77.342463][ T8439] __handle_irq_event_percpu+0x303/0x8f0 [ 77.350073][ T8439] handle_irq_event+0x102/0x280 [ 77.356900][ T8439] handle_edge_irq+0x25f/0xd00 [ 77.363648][ T8439] __common_interrupt+0x9d/0x210 [ 77.370617][ T8439] common_interrupt+0x9f/0xd0 [ 77.377281][ T8439] asm_common_interrupt+0x1e/0x40 [ 77.384285][ T8439] _raw_spin_unlock_irqrestore+0x38/0x70 [ 77.391893][ T8439] i8042_command+0x12e/0x150 [ 77.398459][ T8439] i8042_aux_write+0xd7/0x120 [ 77.405110][ T8439] ps2_do_sendbyte+0x2cf/0x710 [ 77.411851][ T8439] ps2_sendbyte+0x58/0x150 [ 77.418342][ T8439] cypress_ps2_sendbyte+0x2e/0x160 [ 77.425431][ T8439] cypress_send_ext_cmd+0x1d0/0x8e0 [ 77.432610][ T8439] cypress_detect+0x75/0x190 [ 77.439174][ T8439] psmouse_try_protocol+0x211/0x370 [ 77.446348][ T8439] psmouse_extensions+0x557/0x930 [ 77.453352][ T8439] psmouse_switch_protocol+0x52a/0x740 [ 77.460785][ T8439] psmouse_connect+0x5e9/0xfd0 [ 77.467524][ T8439] serio_driver_probe+0x72/0xa0 [ 77.474355][ T8439] really_probe+0x23c/0xcd0 [ 77.480843][ T8439] __driver_probe_device+0x338/0x4d0 [ 77.488102][ T8439] driver_probe_device+0x4c/0x1a0 [ 77.495101][ T8439] __driver_attach+0x22d/0x4e0 [ 77.501842][ T8439] bus_for_each_dev+0x147/0x1d0 [ 77.509066][ T8439] serio_handle_event+0x5f6/0xa30 [ 77.516112][ T8439] process_one_work+0x98d/0x1630 [ 77.523040][ T8439] worker_thread+0x658/0x11f0 [ 77.529693][ T8439] kthread+0x3e5/0x4d0 [ 77.535734][ T8439] ret_from_fork+0x1f/0x30 [ 77.542126][ T8439] INITIAL USE at: [ 77.546167][ T8439] lock_acquire+0x1ab/0x510 [ 77.552556][ T8439] _raw_spin_lock_irqsave+0x39/0x50 [ 77.559640][ T8439] input_inject_event+0xa6/0x320 [ 77.566477][ T8439] led_set_brightness_nosleep+0xe6/0x1a0 [ 77.574003][ T8439] led_set_brightness+0x134/0x170 [ 77.580937][ T8439] led_trigger_event+0x75/0xd0 [ 77.587589][ T8439] kbd_led_trigger_activate+0xc9/0x100 [ 77.594938][ T8439] led_trigger_set+0x61e/0xbd0 [ 77.601586][ T8439] led_trigger_set_default+0x1a6/0x230 [ 77.608938][ T8439] led_classdev_register_ext+0x5b1/0x7c0 [ 77.616461][ T8439] input_leds_connect+0x4bd/0x860 [ 77.623372][ T8439] input_attach_handler+0x180/0x1f0 [ 77.630461][ T8439] input_register_device.cold+0xf0/0x303 [ 77.637986][ T8439] atkbd_connect+0x739/0xa00 [ 77.644464][ T8439] serio_driver_probe+0x72/0xa0 [ 77.651200][ T8439] really_probe+0x23c/0xcd0 [ 77.657594][ T8439] __driver_probe_device+0x338/0x4d0 [ 77.664767][ T8439] driver_probe_device+0x4c/0x1a0 [ 77.671681][ T8439] __driver_attach+0x22d/0x4e0 [ 77.678333][ T8439] bus_for_each_dev+0x147/0x1d0 [ 77.685083][ T8439] serio_handle_event+0x5f6/0xa30 [ 77.691997][ T8439] process_one_work+0x98d/0x1630 [ 77.698826][ T8439] worker_thread+0x658/0x11f0 [ 77.705392][ T8439] kthread+0x3e5/0x4d0 [ 77.711355][ T8439] ret_from_fork+0x1f/0x30 [ 77.717673][ T8439] } [ 77.720322][ T8439] ... key at: [] __key.8+0x0/0x40 [ 77.727583][ T8439] -> (&client->buffer_lock){....}-{2:2} { [ 77.733389][ T8439] INITIAL USE at: [ 77.737349][ T8439] lock_acquire+0x1ab/0x510 [ 77.743566][ T8439] _raw_spin_lock+0x2a/0x40 [ 77.749783][ T8439] evdev_pass_values.part.0+0xf6/0x970 [ 77.756969][ T8439] evdev_events+0x359/0x3e0 [ 77.763184][ T8439] input_to_handler+0x2a0/0x4c0 [ 77.769749][ T8439] input_pass_values.part.0+0x230/0x710 [ 77.777008][ T8439] input_handle_event+0x373/0x1440 [ 77.783835][ T8439] input_inject_event+0x1bd/0x320 [ 77.790578][ T8439] evdev_write+0x430/0x760 [ 77.796716][ T8439] vfs_write+0x28e/0xa40 [ 77.802681][ T8439] ksys_write+0x1ee/0x250 [ 77.809085][ T8439] do_syscall_64+0x35/0xb0 [ 77.815220][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 77.822831][ T8439] } [ 77.825397][ T8439] ... key at: [] __key.4+0x0/0x40 [ 77.832576][ T8439] ... acquired at: [ 77.836444][ T8439] _raw_spin_lock+0x2a/0x40 [ 77.841137][ T8439] evdev_pass_values.part.0+0xf6/0x970 [ 77.846749][ T8439] evdev_events+0x359/0x3e0 [ 77.851406][ T8439] input_to_handler+0x2a0/0x4c0 [ 77.856417][ T8439] input_pass_values.part.0+0x230/0x710 [ 77.862111][ T8439] input_handle_event+0x373/0x1440 [ 77.867371][ T8439] input_inject_event+0x1bd/0x320 [ 77.872563][ T8439] evdev_write+0x430/0x760 [ 77.877129][ T8439] vfs_write+0x28e/0xa40 [ 77.881550][ T8439] ksys_write+0x1ee/0x250 [ 77.886039][ T8439] do_syscall_64+0x35/0xb0 [ 77.890609][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 77.896656][ T8439] [ 77.898971][ T8439] -> (&new->fa_lock){....}-{2:2} { [ 77.904069][ T8439] INITIAL READ USE at: [ 77.908737][ T8439] lock_acquire+0x1ab/0x510 [ 77.915214][ T8439] _raw_read_lock+0x5b/0x70 [ 77.921694][ T8439] kill_fasync+0x132/0x460 [ 77.928085][ T8439] evdev_pass_values.part.0+0x64e/0x970 [ 77.935608][ T8439] evdev_events+0x359/0x3e0 [ 77.942090][ T8439] input_to_handler+0x2a0/0x4c0 [ 77.948916][ T8439] input_pass_values.part.0+0x230/0x710 [ 77.956435][ T8439] input_handle_event+0x373/0x1440 [ 77.963521][ T8439] input_inject_event+0x1bd/0x320 [ 77.970520][ T8439] evdev_write+0x430/0x760 [ 77.976910][ T8439] vfs_write+0x28e/0xa40 [ 77.983129][ T8439] ksys_write+0x1ee/0x250 [ 77.989434][ T8439] do_syscall_64+0x35/0xb0 [ 77.995828][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 78.003702][ T8439] } [ 78.006191][ T8439] ... key at: [] __key.0+0x0/0x40 [ 78.013802][ T8439] ... acquired at: [ 78.017585][ T8439] _raw_read_lock+0x5b/0x70 [ 78.022241][ T8439] kill_fasync+0x132/0x460 [ 78.026811][ T8439] evdev_pass_values.part.0+0x64e/0x970 [ 78.032509][ T8439] evdev_events+0x359/0x3e0 [ 78.037161][ T8439] input_to_handler+0x2a0/0x4c0 [ 78.042168][ T8439] input_pass_values.part.0+0x230/0x710 [ 78.047870][ T8439] input_handle_event+0x373/0x1440 [ 78.053128][ T8439] input_inject_event+0x1bd/0x320 [ 78.058301][ T8439] evdev_write+0x430/0x760 [ 78.062871][ T8439] vfs_write+0x28e/0xa40 [ 78.067264][ T8439] ksys_write+0x1ee/0x250 [ 78.071781][ T8439] do_syscall_64+0x35/0xb0 [ 78.076350][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 78.082404][ T8439] [ 78.084707][ T8439] [ 78.084707][ T8439] the dependencies between the lock to be acquired [ 78.084714][ T8439] and HARDIRQ-irq-unsafe lock: [ 78.098188][ T8439] -> (&f->f_owner.lock){.+.+}-{2:2} { [ 78.103546][ T8439] HARDIRQ-ON-R at: [ 78.107503][ T8439] lock_acquire+0x1ab/0x510 [ 78.113636][ T8439] _raw_read_lock+0x5b/0x70 [ 78.119764][ T8439] do_fcntl+0x8af/0x1210 [ 78.125645][ T8439] __x64_sys_fcntl+0x165/0x1e0 [ 78.132036][ T8439] do_syscall_64+0x35/0xb0 [ 78.138091][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 78.145623][ T8439] SOFTIRQ-ON-R at: [ 78.149591][ T8439] lock_acquire+0x1ab/0x510 [ 78.155896][ T8439] _raw_read_lock+0x5b/0x70 [ 78.162035][ T8439] do_fcntl+0x8af/0x1210 [ 78.167902][ T8439] __x64_sys_fcntl+0x165/0x1e0 [ 78.174291][ T8439] do_syscall_64+0x35/0xb0 [ 78.180338][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 78.187877][ T8439] INITIAL READ USE at: [ 78.192182][ T8439] lock_acquire+0x1ab/0x510 [ 78.198659][ T8439] _raw_read_lock+0x5b/0x70 [ 78.205133][ T8439] do_fcntl+0x8af/0x1210 [ 78.211364][ T8439] __x64_sys_fcntl+0x165/0x1e0 [ 78.218100][ T8439] do_syscall_64+0x35/0xb0 [ 78.224502][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 78.232372][ T8439] } [ 78.234844][ T8439] ... key at: [] __key.5+0x0/0x40 [ 78.241932][ T8439] ... acquired at: [ 78.245707][ T8439] lock_acquire+0x1ab/0x510 [ 78.250362][ T8439] _raw_read_lock_irqsave+0x70/0x90 [ 78.255710][ T8439] send_sigio+0x24/0x380 [ 78.260106][ T8439] kill_fasync+0x1ec/0x460 [ 78.264674][ T8439] evdev_pass_values.part.0+0x64e/0x970 [ 78.270372][ T8439] evdev_events+0x359/0x3e0 [ 78.275027][ T8439] input_to_handler+0x2a0/0x4c0 [ 78.280042][ T8439] input_pass_values.part.0+0x230/0x710 [ 78.285740][ T8439] input_handle_event+0x373/0x1440 [ 78.291000][ T8439] input_inject_event+0x1bd/0x320 [ 78.296175][ T8439] evdev_write+0x430/0x760 [ 78.300742][ T8439] vfs_write+0x28e/0xa40 [ 78.305138][ T8439] ksys_write+0x1ee/0x250 [ 78.309965][ T8439] do_syscall_64+0x35/0xb0 [ 78.314547][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 78.320589][ T8439] [ 78.322887][ T8439] [ 78.322887][ T8439] stack backtrace: [ 78.328750][ T8439] CPU: 1 PID: 8439 Comm: syz-executor707 Not tainted 5.14.0-rc6-syzkaller #0 [ 78.337486][ T8439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.347519][ T8439] Call Trace: [ 78.350779][ T8439] dump_stack_lvl+0xcd/0x134 [ 78.355352][ T8439] check_irq_usage.cold+0x4c1/0x6b0 [ 78.360534][ T8439] ? deref_stack_reg+0x150/0x150 [ 78.365453][ T8439] ? print_shortest_lock_dependencies_backwards+0x80/0x80 [ 78.372559][ T8439] ? is_module_text_address+0x29/0x50 [ 78.377916][ T8439] ? check_path.constprop.0+0x24/0x50 [ 78.383271][ T8439] ? register_lock_class+0xb7/0x10c0 [ 78.388542][ T8439] ? stack_trace_save+0x8c/0xc0 [ 78.393369][ T8439] ? lockdep_lock+0xc6/0x200 [ 78.397939][ T8439] ? call_rcu_zapped+0xb0/0xb0 [ 78.402683][ T8439] __lock_acquire+0x2a1f/0x54a0 [ 78.407854][ T8439] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 78.413814][ T8439] lock_acquire+0x1ab/0x510 [ 78.418292][ T8439] ? send_sigio+0x24/0x380 [ 78.422688][ T8439] ? lock_release+0x720/0x720 [ 78.427398][ T8439] ? lock_release+0x720/0x720 [ 78.432108][ T8439] ? lock_release+0x720/0x720 [ 78.436765][ T8439] _raw_read_lock_irqsave+0x70/0x90 [ 78.441944][ T8439] ? send_sigio+0x24/0x380 [ 78.446338][ T8439] send_sigio+0x24/0x380 [ 78.450560][ T8439] kill_fasync+0x1ec/0x460 [ 78.454952][ T8439] evdev_pass_values.part.0+0x64e/0x970 [ 78.460481][ T8439] ? evdev_release+0x410/0x410 [ 78.465226][ T8439] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 78.470926][ T8439] evdev_events+0x359/0x3e0 [ 78.475410][ T8439] ? evdev_pass_values.part.0+0x970/0x970 [ 78.481117][ T8439] input_to_handler+0x2a0/0x4c0 [ 78.485948][ T8439] input_pass_values.part.0+0x230/0x710 [ 78.491474][ T8439] input_handle_event+0x373/0x1440 [ 78.496562][ T8439] input_inject_event+0x1bd/0x320 [ 78.501567][ T8439] evdev_write+0x430/0x760 [ 78.505973][ T8439] ? evdev_read+0xe40/0xe40 [ 78.510923][ T8439] ? security_file_permission+0x248/0x560 [ 78.516638][ T8439] ? evdev_read+0xe40/0xe40 [ 78.521125][ T8439] vfs_write+0x28e/0xa40 [ 78.525449][ T8439] ksys_write+0x1ee/0x250 [ 78.529783][ T8439] ? __ia32_sys_read+0xb0/0xb0 [ 78.534529][ T8439] ? syscall_enter_from_user_mode+0x21/0x70 [ 78.540403][ T8439] do_syscall_64+0x35/0xb0 [ 78.544800][ T8439] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 78.550676][ T8439] RIP: 0033:0x443589 [ 78.554547][ T8439] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 78.574128][ T8439] RSP: 002b:00007ffdbfc2efa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 78.582519][ T8439] RAX: ffffffffffffffda RBX: 00000000004004a0 RCX: 0000000000443589 [ 78.590468][ T8439] RDX: 0000