=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
5.11.0-rc1-syzkaller #0 Not tainted
-----------------------------------------------------
syz-executor.4/16135 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffff88801c082b38 (&f->f_owner.lock){.+.?}-{2:2}, at: send_sigio+0x24/0x360 fs/fcntl.c:787
and this task is already holding:
ffff88802a7df9f0 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1004 [inline]
ffff88802a7df9f0 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1025 [inline]
ffff88802a7df9f0 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x14b/0x460 fs/fcntl.c:1018
which would create a new lock dependency:
(&new->fa_lock){....}-{2:2} -> (&f->f_owner.lock){.+.?}-{2:2}
but this new dependency connects a HARDIRQ-irq-safe lock:
(&dev->event_lock){-.-.}-{2:2}
... which became HARDIRQ-irq-safe at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
input_event drivers/input/input.c:445 [inline]
input_event+0x7b/0xb0 drivers/input/input.c:438
input_report_key include/linux/input.h:425 [inline]
psmouse_report_standard_buttons+0x2c/0x80 drivers/input/mouse/psmouse-base.c:123
psmouse_report_standard_packet drivers/input/mouse/psmouse-base.c:141 [inline]
psmouse_process_byte+0x1e1/0x890 drivers/input/mouse/psmouse-base.c:232
psmouse_handle_byte+0x41/0x1b0 drivers/input/mouse/psmouse-base.c:274
psmouse_interrupt+0x304/0xf00 drivers/input/mouse/psmouse-base.c:426
serio_interrupt+0x88/0x150 drivers/input/serio/serio.c:1002
i8042_interrupt+0x27a/0x520 drivers/input/serio/i8042.c:602
__handle_irq_event_percpu+0x303/0x8f0 kernel/irq/handle.c:156
handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
handle_irq_event+0x102/0x290 kernel/irq/handle.c:213
handle_edge_irq+0x25f/0xd00 kernel/irq/chip.c:819
asm_call_irq_on_stack+0xf/0x20
__run_irq_on_irqstack arch/x86/include/asm/irq_stack.h:48 [inline]
run_irq_on_irqstack_cond arch/x86/include/asm/irq_stack.h:101 [inline]
handle_irq arch/x86/kernel/irq.c:230 [inline]
__common_interrupt arch/x86/kernel/irq.c:249 [inline]
common_interrupt+0x120/0x200 arch/x86/kernel/irq.c:239
asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:619
unwind_next_frame+0xc28/0x1f90 arch/x86/kernel/unwind_orc.c:531
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:401 [inline]
____kasan_kmalloc.constprop.0+0x7f/0xa0 mm/kasan/common.c:429
kmalloc_node include/linux/slab.h:575 [inline]
__vmalloc_area_node+0x556/0x6e0 mm/vmalloc.c:2493
__vmalloc_node_range+0xec/0x170 mm/vmalloc.c:2574
alloc_thread_stack_node kernel/fork.c:244 [inline]
dup_task_struct kernel/fork.c:865 [inline]
copy_process+0x4b19/0x6fd0 kernel/fork.c:1942
kernel_clone+0xe7/0xab0 kernel/fork.c:2464
kernel_thread+0xb5/0xf0 kernel/fork.c:2516
call_usermodehelper_exec_work kernel/umh.c:172 [inline]
call_usermodehelper_exec_work+0xcc/0x180 kernel/umh.c:158
process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275
worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
kthread+0x3b1/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
to a HARDIRQ-irq-unsafe lock:
(&f->f_owner.lock){.+.?}-{2:2}
... which became HARDIRQ-irq-unsafe at:
...
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
f_getown_ex fs/fcntl.c:206 [inline]
do_fcntl+0x8ab/0x1070 fs/fcntl.c:387
__do_sys_fcntl fs/fcntl.c:463 [inline]
__se_sys_fcntl fs/fcntl.c:448 [inline]
__x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:448
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
other info that might help us debug this:
Chain exists of:
&dev->event_lock --> &new->fa_lock --> &f->f_owner.lock
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&f->f_owner.lock);
local_irq_disable();
lock(&dev->event_lock);
lock(&new->fa_lock);
<Interrupt>
lock(&dev->event_lock);
*** DEADLOCK ***
8 locks held by syz-executor.4/16135:
#0: ffff8880203b3110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x1d3/0x760 drivers/input/evdev.c:513
#1: ffff88801f00e230 (&dev->event_lock){-.-.}-{2:2}, at: input_inject_event+0xa6/0x310 drivers/input/input.c:471
#2: ffffffff8b363860 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:53 [inline]
#2: ffffffff8b363860 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:50 [inline]
#2: ffffffff8b363860 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0x92/0x310 drivers/input/input.c:470
#3: ffffffff8b363860 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x700 drivers/input/input.c:837
#4: ffffffff8b363860 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x59/0x3f0 drivers/input/evdev.c:296
#5: ffff88802158c028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline]
#5: ffff88802158c028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x970 drivers/input/evdev.c:261
#6: ffffffff8b363860 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x3d/0x460 fs/fcntl.c:1023
#7: ffff88802a7df9f0 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1004 [inline]
#7: ffff88802a7df9f0 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1025 [inline]
#7: ffff88802a7df9f0 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x14b/0x460 fs/fcntl.c:1018
the dependencies between HARDIRQ-irq-safe lock and the holding lock:
-> (&dev->event_lock){-.-.}-{2:2} {
IN-HARDIRQ-W at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
input_event drivers/input/input.c:445 [inline]
input_event+0x7b/0xb0 drivers/input/input.c:438
input_report_key include/linux/input.h:425 [inline]
psmouse_report_standard_buttons+0x2c/0x80 drivers/input/mouse/psmouse-base.c:123
psmouse_report_standard_packet drivers/input/mouse/psmouse-base.c:141 [inline]
psmouse_process_byte+0x1e1/0x890 drivers/input/mouse/psmouse-base.c:232
psmouse_handle_byte+0x41/0x1b0 drivers/input/mouse/psmouse-base.c:274
psmouse_interrupt+0x304/0xf00 drivers/input/mouse/psmouse-base.c:426
serio_interrupt+0x88/0x150 drivers/input/serio/serio.c:1002
i8042_interrupt+0x27a/0x520 drivers/input/serio/i8042.c:602
__handle_irq_event_percpu+0x303/0x8f0 kernel/irq/handle.c:156
handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
handle_irq_event+0x102/0x290 kernel/irq/handle.c:213
handle_edge_irq+0x25f/0xd00 kernel/irq/chip.c:819
asm_call_irq_on_stack+0xf/0x20
__run_irq_on_irqstack arch/x86/include/asm/irq_stack.h:48 [inline]
run_irq_on_irqstack_cond arch/x86/include/asm/irq_stack.h:101 [inline]
handle_irq arch/x86/kernel/irq.c:230 [inline]
__common_interrupt arch/x86/kernel/irq.c:249 [inline]
common_interrupt+0x120/0x200 arch/x86/kernel/irq.c:239
asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:619
unwind_next_frame+0xc28/0x1f90 arch/x86/kernel/unwind_orc.c:531
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121
kasan_save_stack+0x1b/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:46 [inline]
set_alloc_info mm/kasan/common.c:401 [inline]
____kasan_kmalloc.constprop.0+0x7f/0xa0 mm/kasan/common.c:429
kmalloc_node include/linux/slab.h:575 [inline]
__vmalloc_area_node+0x556/0x6e0 mm/vmalloc.c:2493
__vmalloc_node_range+0xec/0x170 mm/vmalloc.c:2574
alloc_thread_stack_node kernel/fork.c:244 [inline]
dup_task_struct kernel/fork.c:865 [inline]
copy_process+0x4b19/0x6fd0 kernel/fork.c:1942
kernel_clone+0xe7/0xab0 kernel/fork.c:2464
kernel_thread+0xb5/0xf0 kernel/fork.c:2516
call_usermodehelper_exec_work kernel/umh.c:172 [inline]
call_usermodehelper_exec_work+0xcc/0x180 kernel/umh.c:158
process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275
worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
kthread+0x3b1/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
IN-SOFTIRQ-W at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
input_event drivers/input/input.c:445 [inline]
input_event+0x7b/0xb0 drivers/input/input.c:438
hidinput_hid_event+0x14d3/0x18b0 drivers/hid/hid-input.c:1401
hid_process_event+0x491/0x570 drivers/hid/hid-core.c:1519
hid_input_field drivers/hid/hid-core.c:1563 [inline]
hid_report_raw_event+0xd86/0x1230 drivers/hid/hid-core.c:1783
hid_input_report+0x360/0x4c0 drivers/hid/hid-core.c:1850
hid_irq_in+0x50e/0x690 drivers/hid/usbhid/hid-core.c:284
__usb_hcd_giveback_urb+0x2b0/0x5c0 drivers/usb/core/hcd.c:1657
usb_hcd_giveback_urb+0x367/0x410 drivers/usb/core/hcd.c:1728
dummy_timer+0x11f4/0x3280 drivers/usb/gadget/udc/dummy_hcd.c:1971
call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1417
expire_timers kernel/time/timer.c:1462 [inline]
__run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1731
__run_timers kernel/time/timer.c:1712 [inline]
run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1744
__do_softirq+0x2a5/0x9f7 kernel/softirq.c:343
asm_call_irq_on_stack+0xf/0x20
__run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline]
run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline]
do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77
invoke_softirq kernel/softirq.c:226 [inline]
__irq_exit_rcu kernel/softirq.c:420 [inline]
irq_exit_rcu+0x134/0x200 kernel/softirq.c:432
sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628
native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline]
arch_local_irq_restore arch/x86/include/asm/irqflags.h:84 [inline]
kcov_remote_stop+0x10c/0x3f0 kernel/kcov.c:1016
hub_event+0xe27/0x42d0 drivers/usb/core/hub.c:5636
process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275
worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
kthread+0x3b1/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
INITIAL USE at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159
input_inject_event+0xa6/0x310 drivers/input/input.c:471
__led_set_brightness drivers/leds/led-core.c:48 [inline]
led_set_brightness_nopm drivers/leds/led-core.c:275 [inline]
led_set_brightness_nosleep+0xe6/0x1a0 drivers/leds/led-core.c:292
led_set_brightness+0x134/0x170 drivers/leds/led-core.c:267
led_trigger_event drivers/leds/led-triggers.c:387 [inline]
led_trigger_event+0x70/0xd0 drivers/leds/led-triggers.c:377
kbd_led_trigger_activate+0xfa/0x130 drivers/tty/vt/keyboard.c:1017
led_trigger_set+0x61e/0xbd0 drivers/leds/led-triggers.c:195
led_trigger_set_default drivers/leds/led-triggers.c:259 [inline]
led_trigger_set_default+0x1a6/0x230 drivers/leds/led-triggers.c:246
led_classdev_register_ext+0x5b1/0x7c0 drivers/leds/led-class.c:417
led_classdev_register include/linux/leds.h:190 [inline]
input_leds_connect+0x3fb/0x740 drivers/input/input-leds.c:139
input_attach_handler+0x180/0x1f0 drivers/input/input.c:1035
input_register_device.cold+0xf0/0x307 drivers/input/input.c:2335
atkbd_connect+0x736/0xa00 drivers/input/keyboard/atkbd.c:1293
serio_connect_driver drivers/input/serio/serio.c:47 [inline]
serio_driver_probe+0x72/0xa0 drivers/input/serio/serio.c:778
really_probe+0x291/0xde0 drivers/base/dd.c:561
driver_probe_device+0x26b/0x3d0 drivers/base/dd.c:745
device_driver_attach+0x228/0x290 drivers/base/dd.c:1020
__driver_attach+0x15b/0x2f0 drivers/base/dd.c:1097
bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:305
serio_attach_driver drivers/input/serio/serio.c:808 [inline]
serio_handle_event+0x5f6/0xa30 drivers/input/serio/serio.c:227
process_one_work+0x98d/0x15f0 kernel/workqueue.c:2275
worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
kthread+0x3b1/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
}
... key at: [<ffffffff8fa6be00>] __key.8+0x0/0x40
... acquired at:
__raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151
spin_lock include/linux/spinlock.h:354 [inline]
evdev_pass_values.part.0+0xf6/0x970 drivers/input/evdev.c:261
evdev_pass_values drivers/input/evdev.c:253 [inline]
evdev_events+0x28b/0x3f0 drivers/input/evdev.c:306
input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
input_pass_values.part.0+0x284/0x700 drivers/input/input.c:145
input_pass_values drivers/input/input.c:134 [inline]
input_handle_event+0x373/0x1440 drivers/input/input.c:404
input_inject_event+0x2f5/0x310 drivers/input/input.c:476
evdev_write+0x430/0x760 drivers/input/evdev.c:530
vfs_write+0x28e/0xa30 fs/read_write.c:603
ksys_write+0x1ee/0x250 fs/read_write.c:658
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
-> (&client->buffer_lock){....}-{2:2} {
INITIAL USE at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline]
_raw_spin_lock_irq+0x32/0x50 kernel/locking/spinlock.c:167
spin_lock_irq include/linux/spinlock.h:379 [inline]
evdev_fetch_next_event drivers/input/evdev.c:545 [inline]
evdev_read+0x402/0xe40 drivers/input/evdev.c:586
do_loop_readv_writev fs/read_write.c:761 [inline]
do_loop_readv_writev fs/read_write.c:748 [inline]
do_iter_read+0x48e/0x6e0 fs/read_write.c:803
vfs_readv+0xe5/0x150 fs/read_write.c:921
do_readv+0x27f/0x300 fs/read_write.c:958
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
}
... key at: [<ffffffff8fa6c280>] __key.4+0x0/0x40
... acquired at:
__raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
kill_fasync_rcu fs/fcntl.c:1004 [inline]
kill_fasync fs/fcntl.c:1025 [inline]
kill_fasync+0x14b/0x460 fs/fcntl.c:1018
__pass_event drivers/input/evdev.c:240 [inline]
evdev_pass_values.part.0+0x64e/0x970 drivers/input/evdev.c:278
evdev_pass_values drivers/input/evdev.c:253 [inline]
evdev_events+0x28b/0x3f0 drivers/input/evdev.c:306
input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
input_pass_values.part.0+0x284/0x700 drivers/input/input.c:145
input_pass_values drivers/input/input.c:134 [inline]
input_handle_event+0x373/0x1440 drivers/input/input.c:404
input_inject_event+0x2f5/0x310 drivers/input/input.c:476
evdev_write+0x430/0x760 drivers/input/evdev.c:530
vfs_write+0x28e/0xa30 fs/read_write.c:603
ksys_write+0x1ee/0x250 fs/read_write.c:658
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
-> (&new->fa_lock){....}-{2:2} {
INITIAL READ USE at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
kill_fasync_rcu fs/fcntl.c:1004 [inline]
kill_fasync fs/fcntl.c:1025 [inline]
kill_fasync+0x14b/0x460 fs/fcntl.c:1018
__pass_event drivers/input/evdev.c:240 [inline]
evdev_pass_values.part.0+0x64e/0x970 drivers/input/evdev.c:278
evdev_pass_values drivers/input/evdev.c:253 [inline]
evdev_events+0x28b/0x3f0 drivers/input/evdev.c:306
input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
input_pass_values.part.0+0x284/0x700 drivers/input/input.c:145
input_pass_values drivers/input/input.c:134 [inline]
input_handle_event+0x373/0x1440 drivers/input/input.c:404
input_inject_event+0x2f5/0x310 drivers/input/input.c:476
evdev_write+0x430/0x760 drivers/input/evdev.c:530
vfs_write+0x28e/0xa30 fs/read_write.c:603
ksys_write+0x1ee/0x250 fs/read_write.c:658
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
}
... key at: [<ffffffff8ef9a960>] __key.0+0x0/0x40
... acquired at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
_raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:231
send_sigio+0x24/0x360 fs/fcntl.c:787
kill_fasync_rcu fs/fcntl.c:1011 [inline]
kill_fasync fs/fcntl.c:1025 [inline]
kill_fasync+0x205/0x460 fs/fcntl.c:1018
__pass_event drivers/input/evdev.c:240 [inline]
evdev_pass_values.part.0+0x64e/0x970 drivers/input/evdev.c:278
evdev_pass_values drivers/input/evdev.c:253 [inline]
evdev_events+0x28b/0x3f0 drivers/input/evdev.c:306
input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
input_pass_values.part.0+0x284/0x700 drivers/input/input.c:145
input_pass_values drivers/input/input.c:134 [inline]
input_handle_event+0x373/0x1440 drivers/input/input.c:404
input_inject_event+0x2f5/0x310 drivers/input/input.c:476
evdev_write+0x430/0x760 drivers/input/evdev.c:530
vfs_write+0x28e/0xa30 fs/read_write.c:603
ksys_write+0x1ee/0x250 fs/read_write.c:658
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
the dependencies between the lock to be acquired
and HARDIRQ-irq-unsafe lock:
-> (&f->f_owner.lock){.+.?}-{2:2} {
HARDIRQ-ON-R at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
f_getown_ex fs/fcntl.c:206 [inline]
do_fcntl+0x8ab/0x1070 fs/fcntl.c:387
__do_sys_fcntl fs/fcntl.c:463 [inline]
__se_sys_fcntl fs/fcntl.c:448 [inline]
__x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:448
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
IN-SOFTIRQ-R at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
_raw_read_lock_irqsave+0x45/0x90 kernel/locking/spinlock.c:231
send_sigurg+0x1e/0xac0 fs/fcntl.c:826
sk_send_sigurg+0x76/0x300 net/core/sock.c:2938
tcp_check_urg.isra.0+0x1f4/0x710 net/ipv4/tcp_input.c:5508
tcp_urg net/ipv4/tcp_input.c:5549 [inline]
tcp_rcv_established+0x106c/0x1eb0 net/ipv4/tcp_input.c:5883
tcp_v4_do_rcv+0x5d1/0x870 net/ipv4/tcp_ipv4.c:1676
tcp_v4_rcv+0x2d10/0x3750 net/ipv4/tcp_ipv4.c:2058
ip_protocol_deliver_rcu+0x5c/0x8a0 net/ipv4/ip_input.c:204
ip_local_deliver_finish+0x20a/0x370 net/ipv4/ip_input.c:231
NF_HOOK include/linux/netfilter.h:301 [inline]
NF_HOOK include/linux/netfilter.h:295 [inline]
ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:252
dst_input include/net/dst.h:447 [inline]
ip_rcv_finish+0x1da/0x2f0 net/ipv4/ip_input.c:428
NF_HOOK include/linux/netfilter.h:301 [inline]
NF_HOOK include/linux/netfilter.h:295 [inline]
ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:539
__netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5323
__netif_receive_skb+0x27/0x1c0 net/core/dev.c:5437
process_backlog+0x232/0x6c0 net/core/dev.c:6327
napi_poll net/core/dev.c:6805 [inline]
net_rx_action+0x461/0xe10 net/core/dev.c:6888
__do_softirq+0x2a5/0x9f7 kernel/softirq.c:343
run_ksoftirqd kernel/softirq.c:650 [inline]
run_ksoftirqd+0x2d/0x50 kernel/softirq.c:642
smpboot_thread_fn+0x655/0x9e0 kernel/smpboot.c:165
kthread+0x3b1/0x4a0 kernel/kthread.c:292
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
SOFTIRQ-ON-R at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
_raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223
f_getown_ex fs/fcntl.c:206 [inline]
do_fcntl+0x8ab/0x1070 fs/fcntl.c:387
__do_sys_fcntl fs/fcntl.c:463 [inline]
__se_sys_fcntl fs/fcntl.c:448 [inline]
__x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:448
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
INITIAL USE at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline]
_raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:311
f_modown+0x2a/0x390 fs/fcntl.c:90
__f_setown fs/fcntl.c:109 [inline]
f_setown+0xf4/0x230 fs/fcntl.c:137
do_fcntl+0x749/0x1070 fs/fcntl.c:384
__do_sys_fcntl fs/fcntl.c:463 [inline]
__se_sys_fcntl fs/fcntl.c:448 [inline]
__x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:448
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
INITIAL READ USE at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
_raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:231
send_sigurg+0x1e/0xac0 fs/fcntl.c:826
sk_send_sigurg+0x76/0x300 net/core/sock.c:2938
tcp_check_urg.isra.0+0x1f4/0x710 net/ipv4/tcp_input.c:5508
tcp_urg net/ipv4/tcp_input.c:5549 [inline]
tcp_rcv_established+0x106c/0x1eb0 net/ipv4/tcp_input.c:5883
tcp_v4_do_rcv+0x5d1/0x870 net/ipv4/tcp_ipv4.c:1676
sk_backlog_rcv include/net/sock.h:1016 [inline]
__release_sock+0x134/0x3a0 net/core/sock.c:2542
release_sock+0x54/0x1b0 net/core/sock.c:3066
sk_stream_wait_memory+0x608/0xed0 net/core/stream.c:145
tcp_sendmsg_locked+0x1034/0x2d30 net/ipv4/tcp.c:1419
tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1459
inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:817
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:672
__sys_sendto+0x21c/0x320 net/socket.c:1975
__do_sys_sendto net/socket.c:1987 [inline]
__se_sys_sendto net/socket.c:1983 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:1983
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
}
... key at: [<ffffffff8ef99b80>] __key.5+0x0/0x40
... acquired at:
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
_raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:231
send_sigio+0x24/0x360 fs/fcntl.c:787
kill_fasync_rcu fs/fcntl.c:1011 [inline]
kill_fasync fs/fcntl.c:1025 [inline]
kill_fasync+0x205/0x460 fs/fcntl.c:1018
__pass_event drivers/input/evdev.c:240 [inline]
evdev_pass_values.part.0+0x64e/0x970 drivers/input/evdev.c:278
evdev_pass_values drivers/input/evdev.c:253 [inline]
evdev_events+0x28b/0x3f0 drivers/input/evdev.c:306
input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
input_pass_values.part.0+0x284/0x700 drivers/input/input.c:145
input_pass_values drivers/input/input.c:134 [inline]
input_handle_event+0x373/0x1440 drivers/input/input.c:404
input_inject_event+0x2f5/0x310 drivers/input/input.c:476
evdev_write+0x430/0x760 drivers/input/evdev.c:530
vfs_write+0x28e/0xa30 fs/read_write.c:603
ksys_write+0x1ee/0x250 fs/read_write.c:658
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
stack backtrace:
CPU: 0 PID: 16135 Comm: syz-executor.4 Not tainted 5.11.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x107/0x163 lib/dump_stack.c:120
print_bad_irq_dependency kernel/locking/lockdep.c:2452 [inline]
check_irq_usage.cold+0x4f5/0x6c8 kernel/locking/lockdep.c:2681
check_prev_add kernel/locking/lockdep.c:2872 [inline]
check_prevs_add kernel/locking/lockdep.c:2993 [inline]
validate_chain kernel/locking/lockdep.c:3608 [inline]
__lock_acquire+0x2af6/0x5500 kernel/locking/lockdep.c:4832
lock_acquire kernel/locking/lockdep.c:5437 [inline]
lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline]
_raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:231
send_sigio+0x24/0x360 fs/fcntl.c:787
kill_fasync_rcu fs/fcntl.c:1011 [inline]
kill_fasync fs/fcntl.c:1025 [inline]
kill_fasync+0x205/0x460 fs/fcntl.c:1018
__pass_event drivers/input/evdev.c:240 [inline]
evdev_pass_values.part.0+0x64e/0x970 drivers/input/evdev.c:278
evdev_pass_values drivers/input/evdev.c:253 [inline]
evdev_events+0x28b/0x3f0 drivers/input/evdev.c:306
input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115
input_pass_values.part.0+0x284/0x700 drivers/input/input.c:145
input_pass_values drivers/input/input.c:134 [inline]
input_handle_event+0x373/0x1440 drivers/input/input.c:404
input_inject_event+0x2f5/0x310 drivers/input/input.c:476
evdev_write+0x430/0x760 drivers/input/evdev.c:530
vfs_write+0x28e/0xa30 fs/read_write.c:603
ksys_write+0x1ee/0x250 fs/read_write.c:658
do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e299
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f1cec606c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e299
RDX: 0000000000035000 RSI: 0000000020000040 RDI: 0000000000000005
RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffca4dc5b3f R14: 00007f1cec6079c0 R15: 000000000119bf8c