netlink: 'syz-executor3': attribute type 21 has an invalid length. netlink: 'syz-executor3': attribute type 4 has an invalid length. ===================================================== WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected 4.17.0-rc2+ #30 Not tainted ----------------------------------------------------- kworker/0:1/24 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: (ptrval) (fs_reclaim){+.+.}, at: fs_reclaim_acquire.part.82+0x0/0x30 mm/page_alloc.c:463 and this task is already holding: (ptrval) (&(&dev->event_lock)->rlock){-...}, at: input_event+0x67/0xa0 drivers/input/input.c:435 which would create a new lock dependency: (&(&dev->event_lock)->rlock){-...} -> (fs_reclaim){+.+.} but this new dependency connects a HARDIRQ-irq-safe lock: (&(&dev->event_lock)->rlock){-...} ... which became HARDIRQ-irq-safe at: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:152 input_event+0x67/0xa0 drivers/input/input.c:435 input_report_key include/linux/input.h:393 [inline] psmouse_report_standard_buttons+0x31/0x90 drivers/input/mouse/psmouse-base.c:127 psmouse_report_standard_packet drivers/input/mouse/psmouse-base.c:145 [inline] psmouse_process_byte+0x1ef/0x710 drivers/input/mouse/psmouse-base.c:236 psmouse_handle_byte+0x4a/0x570 drivers/input/mouse/psmouse-base.c:278 psmouse_interrupt+0x38a/0x1420 drivers/input/mouse/psmouse-base.c:428 serio_interrupt+0x98/0x160 drivers/input/serio/serio.c:1018 i8042_interrupt+0x385/0x5e0 drivers/input/serio/i8042.c:586 __handle_irq_event_percpu+0x1c0/0xad0 kernel/irq/handle.c:149 handle_irq_event_percpu+0x98/0x1c0 kernel/irq/handle.c:189 handle_irq_event+0xa7/0x135 kernel/irq/handle.c:206 handle_edge_irq+0x20f/0x870 kernel/irq/chip.c:791 generic_handle_irq_desc include/linux/irqdesc.h:159 [inline] handle_irq+0x18c/0x2e7 arch/x86/kernel/irq_64.c:77 do_IRQ+0x78/0x190 arch/x86/kernel/irq.c:245 ret_from_intr+0x0/0x1e arch_local_irq_restore arch/x86/include/asm/paravirt.h:783 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0xa1/0xc0 kernel/locking/spinlock.c:184 spin_unlock_irqrestore include/linux/spinlock.h:365 [inline] i8042_command+0x3f/0x50 drivers/input/serio/i8042.c:350 i8042_aux_write+0xd6/0x110 drivers/input/serio/i8042.c:385 serio_write include/linux/serio.h:128 [inline] ps2_do_sendbyte+0x306/0x6b0 drivers/input/serio/libps2.c:44 ps2_sendbyte+0x51/0xa0 drivers/input/serio/libps2.c:96 cypress_ps2_sendbyte drivers/input/mouse/cypress_ps2.c:45 [inline] cypress_ps2_read_cmd_status drivers/input/mouse/cypress_ps2.c:119 [inline] cypress_send_ext_cmd+0x1d1/0x8b0 drivers/input/mouse/cypress_ps2.c:192 cypress_detect+0x78/0x1f0 drivers/input/mouse/cypress_ps2.c:208 psmouse_do_detect+0xad/0x110 drivers/input/mouse/psmouse-base.c:1001 psmouse_try_protocol+0x15d/0x2b0 drivers/input/mouse/psmouse-base.c:1015 psmouse_extensions+0x41f/0x830 drivers/input/mouse/psmouse-base.c:1138 psmouse_switch_protocol+0x53d/0x740 drivers/input/mouse/psmouse-base.c:1529 psmouse_connect+0x51e/0xc10 drivers/input/mouse/psmouse-base.c:1619 serio_connect_driver+0x4f/0x70 drivers/input/serio/serio.c:63 serio_driver_probe+0x47/0x60 drivers/input/serio/serio.c:794 really_probe drivers/base/dd.c:448 [inline] driver_probe_device+0x69b/0x960 drivers/base/dd.c:590 __driver_attach+0x1b2/0x1f0 drivers/base/dd.c:824 bus_for_each_dev+0x151/0x1d0 drivers/base/bus.c:311 driver_attach+0x3d/0x50 drivers/base/dd.c:843 serio_attach_driver drivers/input/serio/serio.c:824 [inline] serio_handle_event+0x70a/0xb20 drivers/input/serio/serio.c:243 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 to a HARDIRQ-irq-unsafe lock: (fs_reclaim){+.+.} ... which became HARDIRQ-irq-unsafe at: ... lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 fs_reclaim_acquire.part.82+0x24/0x30 mm/page_alloc.c:3739 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node_trace+0x39/0x770 mm/slab.c:3661 kmalloc_node include/linux/slab.h:550 [inline] kzalloc_node include/linux/slab.h:712 [inline] alloc_worker+0xbd/0x2e0 kernel/workqueue.c:1704 init_rescuer.part.25+0x1f/0x190 kernel/workqueue.c:4000 init_rescuer kernel/workqueue.c:3997 [inline] workqueue_init+0x51f/0x7d0 kernel/workqueue.c:5732 kernel_init_freeable+0x2ad/0x58e init/main.c:1115 kernel_init+0x11/0x1b3 init/main.c:1053 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(fs_reclaim); local_irq_disable(); lock(&(&dev->event_lock)->rlock); lock(fs_reclaim); lock(&(&dev->event_lock)->rlock); *** DEADLOCK *** 3 locks held by kworker/0:1/24: #0: (ptrval) ((wq_completion)"kacpi_notify"){+.+.}, at: __write_once_size include/linux/compiler.h:215 [inline] #0: (ptrval) ((wq_completion)"kacpi_notify"){+.+.}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: (ptrval) ((wq_completion)"kacpi_notify"){+.+.}, at: atomic64_set include/asm-generic/atomic-instrumented.h:40 [inline] #0: (ptrval) ((wq_completion)"kacpi_notify"){+.+.}, at: atomic_long_set include/asm-generic/atomic-long.h:57 [inline] #0: (ptrval) ((wq_completion)"kacpi_notify"){+.+.}, at: set_work_data kernel/workqueue.c:617 [inline] #0: (ptrval) ((wq_completion)"kacpi_notify"){+.+.}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: (ptrval) ((wq_completion)"kacpi_notify"){+.+.}, at: process_one_work+0xaef/0x1b50 kernel/workqueue.c:2116 #1: (ptrval) ((work_completion)(&dpc->work)){+.+.}, at: process_one_work+0xb46/0x1b50 kernel/workqueue.c:2120 #2: (ptrval) (&(&dev->event_lock)->rlock){-...}, at: input_event+0x67/0xa0 drivers/input/input.c:435 the dependencies between HARDIRQ-irq-safe lock and the holding lock: -> (&(&dev->event_lock)->rlock){-...} ops: 9 { IN-HARDIRQ-W at: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:152 input_event+0x67/0xa0 drivers/input/input.c:435 input_report_key include/linux/input.h:393 [inline] psmouse_report_standard_buttons+0x31/0x90 drivers/input/mouse/psmouse-base.c:127 psmouse_report_standard_packet drivers/input/mouse/psmouse-base.c:145 [inline] psmouse_process_byte+0x1ef/0x710 drivers/input/mouse/psmouse-base.c:236 psmouse_handle_byte+0x4a/0x570 drivers/input/mouse/psmouse-base.c:278 psmouse_interrupt+0x38a/0x1420 drivers/input/mouse/psmouse-base.c:428 serio_interrupt+0x98/0x160 drivers/input/serio/serio.c:1018 i8042_interrupt+0x385/0x5e0 drivers/input/serio/i8042.c:586 __handle_irq_event_percpu+0x1c0/0xad0 kernel/irq/handle.c:149 handle_irq_event_percpu+0x98/0x1c0 kernel/irq/handle.c:189 handle_irq_event+0xa7/0x135 kernel/irq/handle.c:206 handle_edge_irq+0x20f/0x870 kernel/irq/chip.c:791 generic_handle_irq_desc include/linux/irqdesc.h:159 [inline] handle_irq+0x18c/0x2e7 arch/x86/kernel/irq_64.c:77 do_IRQ+0x78/0x190 arch/x86/kernel/irq.c:245 ret_from_intr+0x0/0x1e arch_local_irq_restore arch/x86/include/asm/paravirt.h:783 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0xa1/0xc0 kernel/locking/spinlock.c:184 spin_unlock_irqrestore include/linux/spinlock.h:365 [inline] i8042_command+0x3f/0x50 drivers/input/serio/i8042.c:350 i8042_aux_write+0xd6/0x110 drivers/input/serio/i8042.c:385 serio_write include/linux/serio.h:128 [inline] ps2_do_sendbyte+0x306/0x6b0 drivers/input/serio/libps2.c:44 ps2_sendbyte+0x51/0xa0 drivers/input/serio/libps2.c:96 cypress_ps2_sendbyte drivers/input/mouse/cypress_ps2.c:45 [inline] cypress_ps2_read_cmd_status drivers/input/mouse/cypress_ps2.c:119 [inline] cypress_send_ext_cmd+0x1d1/0x8b0 drivers/input/mouse/cypress_ps2.c:192 cypress_detect+0x78/0x1f0 drivers/input/mouse/cypress_ps2.c:208 psmouse_do_detect+0xad/0x110 drivers/input/mouse/psmouse-base.c:1001 psmouse_try_protocol+0x15d/0x2b0 drivers/input/mouse/psmouse-base.c:1015 psmouse_extensions+0x41f/0x830 drivers/input/mouse/psmouse-base.c:1138 psmouse_switch_protocol+0x53d/0x740 drivers/input/mouse/psmouse-base.c:1529 psmouse_connect+0x51e/0xc10 drivers/input/mouse/psmouse-base.c:1619 serio_connect_driver+0x4f/0x70 drivers/input/serio/serio.c:63 serio_driver_probe+0x47/0x60 drivers/input/serio/serio.c:794 really_probe drivers/base/dd.c:448 [inline] driver_probe_device+0x69b/0x960 drivers/base/dd.c:590 __driver_attach+0x1b2/0x1f0 drivers/base/dd.c:824 bus_for_each_dev+0x151/0x1d0 drivers/base/bus.c:311 driver_attach+0x3d/0x50 drivers/base/dd.c:843 serio_attach_driver drivers/input/serio/serio.c:824 [inline] serio_handle_event+0x70a/0xb20 drivers/input/serio/serio.c:243 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 INITIAL USE at: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x96/0xc0 kernel/locking/spinlock.c:152 input_inject_event+0xe0/0x3ed drivers/input/input.c:461 input_leds_brightness_set+0x81/0xb0 drivers/input/input-leds.c:66 __led_set_brightness drivers/leds/led-core.c:34 [inline] led_set_brightness_nopm+0x4c/0xe0 drivers/leds/led-core.c:261 led_set_brightness_nosleep drivers/leds/led-core.c:278 [inline] led_set_brightness+0x113/0x220 drivers/leds/led-core.c:253 led_trigger_event+0x77/0xd0 drivers/leds/led-triggers.c:292 kbd_led_trigger_activate+0xed/0x120 drivers/tty/vt/keyboard.c:969 led_trigger_set+0x668/0x930 drivers/leds/led-triggers.c:138 led_trigger_set_default+0x10a/0x180 drivers/leds/led-triggers.c:171 of_led_classdev_register+0x485/0x640 drivers/leds/led-class.c:302 input_leds_connect+0x410/0x7c0 drivers/input/input-leds.c:143 input_attach_handler+0x1b1/0x210 drivers/input/input.c:996 input_register_device.cold.22+0xe8/0x297 drivers/input/input.c:2152 atkbd_connect+0x6fe/0x930 drivers/input/keyboard/atkbd.c:1200 serio_connect_driver+0x4f/0x70 drivers/input/serio/serio.c:63 serio_driver_probe+0x47/0x60 drivers/input/serio/serio.c:794 really_probe drivers/base/dd.c:448 [inline] driver_probe_device+0x69b/0x960 drivers/base/dd.c:590 __driver_attach+0x1b2/0x1f0 drivers/base/dd.c:824 bus_for_each_dev+0x151/0x1d0 drivers/base/bus.c:311 driver_attach+0x3d/0x50 drivers/base/dd.c:843 serio_attach_driver drivers/input/serio/serio.c:824 [inline] serio_handle_event+0x70a/0xb20 drivers/input/serio/serio.c:243 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 } ... key at: [] __key.33441+0x0/0x40 ... acquired at: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 fs_reclaim_acquire.part.82+0x24/0x30 mm/page_alloc.c:3739 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc mm/slab.c:3378 [inline] __do_kmalloc mm/slab.c:3716 [inline] __kmalloc+0x45/0x760 mm/slab.c:3727 kmalloc_array include/linux/slab.h:631 [inline] kcalloc include/linux/slab.h:642 [inline] numa_crng_init drivers/char/random.c:798 [inline] crng_reseed+0x427/0x920 drivers/char/random.c:923 credit_entropy_bits+0x98d/0xa30 drivers/char/random.c:708 add_timer_randomness+0x26b/0x320 drivers/char/random.c:1133 add_input_randomness+0xce/0x3e0 drivers/char/random.c:1148 input_handle_event+0xb3/0x1210 drivers/input/input.c:375 input_event+0x7b/0xa0 drivers/input/input.c:436 input_report_key include/linux/input.h:393 [inline] acpi_button_notify+0x17a/0x360 drivers/acpi/button.c:435 acpi_device_notify drivers/acpi/bus.c:464 [inline] acpi_device_notify_fixed+0x68/0x80 drivers/acpi/bus.c:472 acpi_os_execute_deferred+0x57/0x80 drivers/acpi/osl.c:830 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 the dependencies between the lock to be acquired and HARDIRQ-irq-unsafe lock: -> (fs_reclaim){+.+.} ops: 2364913 { HARDIRQ-ON-W at: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 fs_reclaim_acquire.part.82+0x24/0x30 mm/page_alloc.c:3739 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node_trace+0x39/0x770 mm/slab.c:3661 kmalloc_node include/linux/slab.h:550 [inline] kzalloc_node include/linux/slab.h:712 [inline] alloc_worker+0xbd/0x2e0 kernel/workqueue.c:1704 init_rescuer.part.25+0x1f/0x190 kernel/workqueue.c:4000 init_rescuer kernel/workqueue.c:3997 [inline] workqueue_init+0x51f/0x7d0 kernel/workqueue.c:5732 kernel_init_freeable+0x2ad/0x58e init/main.c:1115 kernel_init+0x11/0x1b3 init/main.c:1053 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 SOFTIRQ-ON-W at: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 fs_reclaim_acquire.part.82+0x24/0x30 mm/page_alloc.c:3739 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node_trace+0x39/0x770 mm/slab.c:3661 kmalloc_node include/linux/slab.h:550 [inline] kzalloc_node include/linux/slab.h:712 [inline] alloc_worker+0xbd/0x2e0 kernel/workqueue.c:1704 init_rescuer.part.25+0x1f/0x190 kernel/workqueue.c:4000 init_rescuer kernel/workqueue.c:3997 [inline] workqueue_init+0x51f/0x7d0 kernel/workqueue.c:5732 kernel_init_freeable+0x2ad/0x58e init/main.c:1115 kernel_init+0x11/0x1b3 init/main.c:1053 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 INITIAL USE at: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 fs_reclaim_acquire.part.82+0x24/0x30 mm/page_alloc.c:3739 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc_node mm/slab.c:3299 [inline] kmem_cache_alloc_node_trace+0x39/0x770 mm/slab.c:3661 kmalloc_node include/linux/slab.h:550 [inline] kzalloc_node include/linux/slab.h:712 [inline] alloc_worker+0xbd/0x2e0 kernel/workqueue.c:1704 init_rescuer.part.25+0x1f/0x190 kernel/workqueue.c:4000 init_rescuer kernel/workqueue.c:3997 [inline] workqueue_init+0x51f/0x7d0 kernel/workqueue.c:5732 kernel_init_freeable+0x2ad/0x58e init/main.c:1115 kernel_init+0x11/0x1b3 init/main.c:1053 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 } ... key at: [] __fs_reclaim_map+0x0/0x40 ... acquired at: lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 fs_reclaim_acquire.part.82+0x24/0x30 mm/page_alloc.c:3739 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc mm/slab.c:3378 [inline] __do_kmalloc mm/slab.c:3716 [inline] __kmalloc+0x45/0x760 mm/slab.c:3727 kmalloc_array include/linux/slab.h:631 [inline] kcalloc include/linux/slab.h:642 [inline] numa_crng_init drivers/char/random.c:798 [inline] crng_reseed+0x427/0x920 drivers/char/random.c:923 credit_entropy_bits+0x98d/0xa30 drivers/char/random.c:708 add_timer_randomness+0x26b/0x320 drivers/char/random.c:1133 add_input_randomness+0xce/0x3e0 drivers/char/random.c:1148 input_handle_event+0xb3/0x1210 drivers/input/input.c:375 input_event+0x7b/0xa0 drivers/input/input.c:436 input_report_key include/linux/input.h:393 [inline] acpi_button_notify+0x17a/0x360 drivers/acpi/button.c:435 acpi_device_notify drivers/acpi/bus.c:464 [inline] acpi_device_notify_fixed+0x68/0x80 drivers/acpi/bus.c:472 acpi_os_execute_deferred+0x57/0x80 drivers/acpi/osl.c:830 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 stack backtrace: CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.17.0-rc2+ #30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: kacpi_notify acpi_os_execute_deferred Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 print_bad_irq_dependency kernel/locking/lockdep.c:1570 [inline] check_usage.cold.58+0x6d5/0xac7 kernel/locking/lockdep.c:1602 check_irq_usage kernel/locking/lockdep.c:1658 [inline] check_prev_add_irq kernel/locking/lockdep_states.h:7 [inline] check_prev_add kernel/locking/lockdep.c:1868 [inline] check_prevs_add kernel/locking/lockdep.c:1976 [inline] validate_chain kernel/locking/lockdep.c:2417 [inline] __lock_acquire+0x2417/0x5140 kernel/locking/lockdep.c:3431 lock_acquire+0x1dc/0x520 kernel/locking/lockdep.c:3920 fs_reclaim_acquire.part.82+0x24/0x30 mm/page_alloc.c:3739 fs_reclaim_acquire+0x14/0x20 mm/page_alloc.c:3740 slab_pre_alloc_hook mm/slab.h:418 [inline] slab_alloc mm/slab.c:3378 [inline] __do_kmalloc mm/slab.c:3716 [inline] __kmalloc+0x45/0x760 mm/slab.c:3727 kmalloc_array include/linux/slab.h:631 [inline] kcalloc include/linux/slab.h:642 [inline] numa_crng_init drivers/char/random.c:798 [inline] crng_reseed+0x427/0x920 drivers/char/random.c:923 credit_entropy_bits+0x98d/0xa30 drivers/char/random.c:708 add_timer_randomness+0x26b/0x320 drivers/char/random.c:1133 add_input_randomness+0xce/0x3e0 drivers/char/random.c:1148 input_handle_event+0xb3/0x1210 drivers/input/input.c:375 input_event+0x7b/0xa0 drivers/input/input.c:436 input_report_key include/linux/input.h:393 [inline] acpi_button_notify+0x17a/0x360 drivers/acpi/button.c:435 acpi_device_notify drivers/acpi/bus.c:464 [inline] acpi_device_notify_fixed+0x68/0x80 drivers/acpi/bus.c:472 acpi_os_execute_deferred+0x57/0x80 drivers/acpi/osl.c:830 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 BUG: sleeping function called from invalid context at mm/slab.h:421 in_atomic(): 1, irqs_disabled(): 1, pid: 24, name: kworker/0:1 INFO: lockdep is turned off. irq event stamp: 591388 hardirqs last enabled at (591387): [] restore_regs_and_return_to_kernel+0x0/0x2b hardirqs last disabled at (591388): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (591388): [] _raw_spin_lock_irqsave+0x74/0xc0 kernel/locking/spinlock.c:152 softirqs last enabled at (591386): [] __do_softirq+0x778/0xaf5 kernel/softirq.c:311 softirqs last disabled at (591377): [] invoke_softirq kernel/softirq.c:365 [inline] softirqs last disabled at (591377): [] irq_exit+0x1d1/0x200 kernel/softirq.c:405 CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.17.0-rc2+ #30 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: kacpi_notify acpi_os_execute_deferred Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1b9/0x294 lib/dump_stack.c:113 ___might_sleep.cold.87+0x11f/0x13a kernel/sched/core.c:6188 __might_sleep+0x95/0x190 kernel/sched/core.c:6141 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3378 [inline] __do_kmalloc mm/slab.c:3716 [inline] __kmalloc+0x2b9/0x760 mm/slab.c:3727 kmalloc_array include/linux/slab.h:631 [inline] kcalloc include/linux/slab.h:642 [inline] numa_crng_init drivers/char/random.c:798 [inline] crng_reseed+0x427/0x920 drivers/char/random.c:923 credit_entropy_bits+0x98d/0xa30 drivers/char/random.c:708 add_timer_randomness+0x26b/0x320 drivers/char/random.c:1133 add_input_randomness+0xce/0x3e0 drivers/char/random.c:1148 input_handle_event+0xb3/0x1210 drivers/input/input.c:375 input_event+0x7b/0xa0 drivers/input/input.c:436 input_report_key include/linux/input.h:393 [inline] acpi_button_notify+0x17a/0x360 drivers/acpi/button.c:435 acpi_device_notify drivers/acpi/bus.c:464 [inline] acpi_device_notify_fixed+0x68/0x80 drivers/acpi/bus.c:472 acpi_os_execute_deferred+0x57/0x80 drivers/acpi/osl.c:830 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:412 random: crng init done cannot load conntrack support for proto=7 kernel msg: ebtables bug: please report to author: Entries_size never zero netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. kernel msg: ebtables bug: please report to author: entries_size too small cannot load conntrack support for proto=7 netlink: 11 bytes leftover after parsing attributes in process `syz-executor0'. IPVS: set_ctl: invalid protocol: 98 0.0.0.6:20000 lc netlink: 3 bytes leftover after parsing attributes in process `syz-executor0'. kernel msg: ebtables bug: please report to author: Entries_size never zero netlink: 11 bytes leftover after parsing attributes in process `syz-executor0'. kernel msg: ebtables bug: please report to author: entries_size too small IPVS: set_ctl: invalid protocol: 98 0.0.0.6:20000 lc netlink: 'syz-executor6': attribute type 4 has an invalid length. bond0: option active_slave: mode dependency failed, not supported in mode balance-rr(0) netlink: 'syz-executor6': attribute type 4 has an invalid length. bond0: option active_slave: mode dependency failed, not supported in mode balance-rr(0) netlink: 'syz-executor0': attribute type 33 has an invalid length. netlink: 'syz-executor0': attribute type 33 has an invalid length. netlink: 'syz-executor3': attribute type 1 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 'syz-executor3': attribute type 1 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor3'. device lo entered promiscuous mode IPVS: set_ctl: invalid protocol: 56 0.0.0.0:20003 fo device lo left promiscuous mode device lo entered promiscuous mode IPVS: set_ctl: invalid protocol: 56 0.0.0.0:20003 fo netlink: 'syz-executor4': attribute type 1 has an invalid length. netlink: 'syz-executor4': attribute type 1 has an invalid length.