=====================================================
WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
6.1.62-syzkaller #0 Not tainted
-----------------------------------------------------
syz-executor.5/10741 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffff888077937600 (&new->fa_lock){...-}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:996 [inline]
ffff888077937600 (&new->fa_lock){...-}-{2:2}, at: kill_fasync+0x196/0x4d0 fs/fcntl.c:1017
and this task is already holding:
ffff8880293ae028 (&client->buffer_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline]
ffff8880293ae028 (&client->buffer_lock){..-.}-{2:2}, at: evdev_pass_values+0xee/0xad0 drivers/input/evdev.c:261
which would create a new lock dependency:
(&client->buffer_lock){..-.}-{2:2} -> (&new->fa_lock){...-}-{2:2}
but this new dependency connects a SOFTIRQ-irq-safe lock:
(&client->buffer_lock){..-.}-{2:2}
... which became SOFTIRQ-irq-safe at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:350 [inline]
evdev_pass_values+0xee/0xad0 drivers/input/evdev.c:261
evdev_events+0x1be/0x2f0 drivers/input/evdev.c:306
input_to_handler drivers/input/input.c:127 [inline]
input_pass_values+0x8e0/0x12a0 drivers/input/input.c:159
input_event_dispose+0x3fc/0x650 drivers/input/input.c:385
input_handle_event+0x97d/0xb00 drivers/input/input.c:402
input_event+0xa0/0xd0 drivers/input/input.c:431
hidinput_hid_event+0x13de/0x1d30 drivers/hid/hid-input.c:1706
hid_process_event+0x433/0x580 drivers/hid/hid-core.c:1537
hid_process_report drivers/hid/hid-core.c:1685 [inline]
hid_report_raw_event+0xfd5/0x17e0 drivers/hid/hid-core.c:2012
hid_input_report+0x420/0x4e0 drivers/hid/hid-core.c:2080
hid_irq_in+0x45c/0x690 drivers/hid/usbhid/hid-core.c:284
__usb_hcd_giveback_urb+0x371/0x530 drivers/usb/core/hcd.c:1675
dummy_timer+0x8ad/0x3200 drivers/usb/gadget/udc/dummy_hcd.c:1988
call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers+0x67c/0x890 kernel/time/timer.c:1790
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
__do_softirq+0x2e9/0xa4c kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
do_sys_openat2+0xc5/0x500
do_sys_open fs/open.c:1334 [inline]
__do_sys_openat fs/open.c:1350 [inline]
__se_sys_openat fs/open.c:1345 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1345
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
to a SOFTIRQ-irq-unsafe lock:
(tasklist_lock){.+.+}-{2:2}
... which became SOFTIRQ-irq-unsafe at:
...
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
do_wait+0x2c6/0xb80 kernel/exit.c:1602
kernel_wait+0xe5/0x230 kernel/exit.c:1792
call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:167
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
other info that might help us debug this:
Chain exists of:
&client->buffer_lock --> &new->fa_lock --> tasklist_lock
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(tasklist_lock);
local_irq_disable();
lock(&client->buffer_lock);
lock(&new->fa_lock);
<Interrupt>
lock(&client->buffer_lock);
*** DEADLOCK ***
7 locks held by syz-executor.5/10741:
#0: ffff8881463c1110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x26d/0x7c0 drivers/input/evdev.c:513
#1: ffff888140baa230 (&dev->event_lock#2){-.-.}-{2:2}, at: input_inject_event+0xc1/0x330 drivers/input/input.c:456
#2: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
#2: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#2: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0xd1/0x330 drivers/input/input.c:458
#3: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
#3: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#3: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: input_pass_values+0xa3/0x12a0 drivers/input/input.c:151
#4: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
#4: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#4: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x6b/0x2f0 drivers/input/evdev.c:298
#5: ffff8880293ae028 (&client->buffer_lock){..-.}-{2:2}, at: spin_lock include/linux/spinlock.h:350 [inline]
#5: ffff8880293ae028 (&client->buffer_lock){..-.}-{2:2}, at: evdev_pass_values+0xee/0xad0 drivers/input/evdev.c:261
#6: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:306 [inline]
#6: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#6: ffffffff8d12a060 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x51/0x4d0 fs/fcntl.c:1016
the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
-> (&client->buffer_lock){..-.}-{2:2} {
IN-SOFTIRQ-W at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:350 [inline]
evdev_pass_values+0xee/0xad0 drivers/input/evdev.c:261
evdev_events+0x1be/0x2f0 drivers/input/evdev.c:306
input_to_handler drivers/input/input.c:127 [inline]
input_pass_values+0x8e0/0x12a0 drivers/input/input.c:159
input_event_dispose+0x3fc/0x650 drivers/input/input.c:385
input_handle_event+0x97d/0xb00 drivers/input/input.c:402
input_event+0xa0/0xd0 drivers/input/input.c:431
hidinput_hid_event+0x13de/0x1d30 drivers/hid/hid-input.c:1706
hid_process_event+0x433/0x580 drivers/hid/hid-core.c:1537
hid_process_report drivers/hid/hid-core.c:1685 [inline]
hid_report_raw_event+0xfd5/0x17e0 drivers/hid/hid-core.c:2012
hid_input_report+0x420/0x4e0 drivers/hid/hid-core.c:2080
hid_irq_in+0x45c/0x690 drivers/hid/usbhid/hid-core.c:284
__usb_hcd_giveback_urb+0x371/0x530 drivers/usb/core/hcd.c:1675
dummy_timer+0x8ad/0x3200 drivers/usb/gadget/udc/dummy_hcd.c:1988
call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers+0x67c/0x890 kernel/time/timer.c:1790
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
__do_softirq+0x2e9/0xa4c kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
do_sys_openat2+0xc5/0x500
do_sys_open fs/open.c:1334 [inline]
__do_sys_openat fs/open.c:1350 [inline]
__se_sys_openat fs/open.c:1345 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1345
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
INITIAL USE at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:350 [inline]
evdev_pass_values+0xee/0xad0 drivers/input/evdev.c:261
evdev_events+0x1be/0x2f0 drivers/input/evdev.c:306
input_to_handler drivers/input/input.c:127 [inline]
input_pass_values+0x8e0/0x12a0 drivers/input/input.c:159
input_event_dispose+0x3fc/0x650 drivers/input/input.c:385
input_handle_event+0x97d/0xb00 drivers/input/input.c:402
input_event+0xa0/0xd0 drivers/input/input.c:431
hidinput_hid_event+0x13de/0x1d30 drivers/hid/hid-input.c:1706
hid_process_event+0x433/0x580 drivers/hid/hid-core.c:1537
hid_process_report drivers/hid/hid-core.c:1685 [inline]
hid_report_raw_event+0xfd5/0x17e0 drivers/hid/hid-core.c:2012
hid_input_report+0x420/0x4e0 drivers/hid/hid-core.c:2080
hid_irq_in+0x45c/0x690 drivers/hid/usbhid/hid-core.c:284
__usb_hcd_giveback_urb+0x371/0x530 drivers/usb/core/hcd.c:1675
dummy_timer+0x8ad/0x3200 drivers/usb/gadget/udc/dummy_hcd.c:1988
call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1474
expire_timers kernel/time/timer.c:1519 [inline]
__run_timers+0x67c/0x890 kernel/time/timer.c:1790
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1803
__do_softirq+0x2e9/0xa4c kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:650
irq_exit_rcu+0x5/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:649
do_sys_openat2+0xc5/0x500
do_sys_open fs/open.c:1334 [inline]
__do_sys_openat fs/open.c:1350 [inline]
__se_sys_openat fs/open.c:1345 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1345
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
}
... key at: [<ffffffff92048520>] evdev_open.__key.25+0x0/0x20
the dependencies between the lock to be acquired
and SOFTIRQ-irq-unsafe lock:
-> (tasklist_lock){.+.+}-{2:2} {
HARDIRQ-ON-R at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
do_wait+0x2c6/0xb80 kernel/exit.c:1602
kernel_wait+0xe5/0x230 kernel/exit.c:1792
call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:167
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
SOFTIRQ-ON-R at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
do_wait+0x2c6/0xb80 kernel/exit.c:1602
kernel_wait+0xe5/0x230 kernel/exit.c:1792
call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:167
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
INITIAL USE at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
_raw_write_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:326
copy_process+0x24b6/0x4060 kernel/fork.c:2401
kernel_clone+0x222/0x920 kernel/fork.c:2682
user_mode_thread+0x12e/0x190 kernel/fork.c:2758
rest_init+0x23/0x300 init/main.c:692
start_kernel+0x0/0x53f init/main.c:887
start_kernel+0x496/0x53f init/main.c:1134
secondary_startup_64_no_verify+0xcf/0xdb
INITIAL READ USE at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
do_wait+0x2c6/0xb80 kernel/exit.c:1602
kernel_wait+0xe5/0x230 kernel/exit.c:1792
call_usermodehelper_exec_sync kernel/umh.c:140 [inline]
call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:167
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
}
... key at: [<ffffffff8ce0a058>] tasklist_lock+0x18/0x40
... acquired at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock include/linux/rwlock_api_smp.h:150 [inline]
_raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
send_sigurg+0xea/0x3b0 fs/fcntl.c:833
sk_send_sigurg+0x6a/0xb0 net/core/sock.c:3353
tcp_check_urg+0x202/0x740 net/ipv4/tcp_input.c:5633
tcp_urg+0x154/0x440 net/ipv4/tcp_input.c:5674
tcp_rcv_established+0xe58/0x1f00 net/ipv4/tcp_input.c:6021
tcp_v6_do_rcv+0x53c/0x1270 net/ipv6/tcp_ipv6.c:1489
sk_backlog_rcv include/net/sock.h:1117 [inline]
__release_sock+0x198/0x4b0 net/core/sock.c:2926
release_sock+0x5d/0x1c0 net/core/sock.c:3490
tcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1489
sock_sendmsg_nosec net/socket.c:716 [inline]
__sock_sendmsg net/socket.c:728 [inline]
__sys_sendto+0x471/0x5f0 net/socket.c:2134
__do_sys_sendto net/socket.c:2146 [inline]
__se_sys_sendto net/socket.c:2142 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2142
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
-> (&f->f_owner.lock){...-}-{2:2} {
IN-SOFTIRQ-R at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
send_sigurg+0x25/0x3b0 fs/fcntl.c:817
sk_send_sigurg+0x6a/0xb0 net/core/sock.c:3353
tcp_check_urg+0x202/0x740 net/ipv4/tcp_input.c:5633
tcp_urg+0x154/0x440 net/ipv4/tcp_input.c:5674
tcp_rcv_established+0xe58/0x1f00 net/ipv4/tcp_input.c:6021
tcp_v4_do_rcv+0x487/0xb00 net/ipv4/tcp_ipv4.c:1677
tcp_v4_rcv+0x29e0/0x3250 net/ipv4/tcp_ipv4.c:2099
ip_protocol_deliver_rcu+0x381/0x740 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x2b4/0x4f0 net/ipv4/ip_input.c:233
NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302
NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302
__netif_receive_skb_one_core net/core/dev.c:5525 [inline]
__netif_receive_skb+0x1c6/0x530 net/core/dev.c:5639
process_backlog+0x381/0x760 net/core/dev.c:5967
__napi_poll+0xc7/0x470 net/core/dev.c:6534
napi_poll net/core/dev.c:6601 [inline]
net_rx_action+0x70f/0xeb0 net/core/dev.c:6712
__do_softirq+0x2e9/0xa4c kernel/softirq.c:571
run_ksoftirqd+0xc1/0x120 kernel/softirq.c:934
smpboot_thread_fn+0x52c/0xa30 kernel/smpboot.c:164
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
INITIAL USE at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
_raw_write_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:326
f_modown+0x38/0x340 fs/fcntl.c:91
__f_setown fs/fcntl.c:110 [inline]
f_setown+0x14c/0x200 fs/fcntl.c:138
sock_ioctl+0x58d/0x770 net/socket.c:1251
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
INITIAL READ USE at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock_irq include/linux/rwlock_api_smp.h:169 [inline]
_raw_read_lock_irq+0xd6/0x120 kernel/locking/spinlock.c:244
f_getown+0x25/0x280 fs/fcntl.c:154
sock_ioctl+0x3ee/0x770 net/socket.c:1255
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xf1/0x160 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
}
... key at: [<ffffffff91d4e400>] __alloc_file.__key+0x0/0x10
... acquired at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
send_sigio+0x2f/0x360 fs/fcntl.c:778
kill_fasync_rcu fs/fcntl.c:1003 [inline]
kill_fasync+0x232/0x4d0 fs/fcntl.c:1017
pipe_release+0x1be/0x320 fs/pipe.c:730
__fput+0x3b7/0x890 fs/file_table.c:320
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
-> (&new->fa_lock){...-}-{2:2} {
IN-SOFTIRQ-R at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
kill_fasync_rcu fs/fcntl.c:996 [inline]
kill_fasync+0x196/0x4d0 fs/fcntl.c:1017
sock_wake_async+0x145/0x170
sk_wake_async+0x186/0x280 include/net/sock.h:2566
sock_def_readable+0x1a7/0x280 net/core/sock.c:3297
tcp_data_queue+0x21c5/0x6fd0 net/ipv4/tcp_input.c:5098
tcp_rcv_established+0xe63/0x1f00 net/ipv4/tcp_input.c:6024
tcp_v4_do_rcv+0x487/0xb00 net/ipv4/tcp_ipv4.c:1677
tcp_v4_rcv+0x29e0/0x3250 net/ipv4/tcp_ipv4.c:2099
ip_protocol_deliver_rcu+0x381/0x740 net/ipv4/ip_input.c:205
ip_local_deliver_finish+0x2b4/0x4f0 net/ipv4/ip_input.c:233
NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302
NF_HOOK+0x39d/0x450 include/linux/netfilter.h:302
__netif_receive_skb_one_core net/core/dev.c:5525 [inline]
__netif_receive_skb+0x1c6/0x530 net/core/dev.c:5639
process_backlog+0x381/0x760 net/core/dev.c:5967
__napi_poll+0xc7/0x470 net/core/dev.c:6534
napi_poll net/core/dev.c:6601 [inline]
net_rx_action+0x70f/0xeb0 net/core/dev.c:6712
__do_softirq+0x2e9/0xa4c kernel/softirq.c:571
run_ksoftirqd+0xc1/0x120 kernel/softirq.c:934
smpboot_thread_fn+0x52c/0xa30 kernel/smpboot.c:164
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
INITIAL USE at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline]
_raw_write_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:326
fasync_remove_entry+0xfb/0x1d0 fs/fcntl.c:873
sock_fasync+0x86/0xf0 net/socket.c:1412
__fput+0x70d/0x890 fs/file_table.c:317
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
INITIAL READ USE at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
kill_fasync_rcu fs/fcntl.c:996 [inline]
kill_fasync+0x196/0x4d0 fs/fcntl.c:1017
pipe_release+0x1be/0x320 fs/pipe.c:730
__fput+0x3b7/0x890 fs/file_table.c:320
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297
do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
}
... key at: [<ffffffff91d4f080>] fasync_insert_entry.__key+0x0/0x20
... acquired at:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
kill_fasync_rcu fs/fcntl.c:996 [inline]
kill_fasync+0x196/0x4d0 fs/fcntl.c:1017
__pass_event drivers/input/evdev.c:240 [inline]
evdev_pass_values+0x586/0xad0 drivers/input/evdev.c:278
evdev_events+0x1be/0x2f0 drivers/input/evdev.c:306
input_to_handler drivers/input/input.c:127 [inline]
input_pass_values+0x8e0/0x12a0 drivers/input/input.c:159
input_event_dispose+0x366/0x650 drivers/input/input.c:374
input_handle_event+0x97d/0xb00 drivers/input/input.c:402
input_inject_event+0x224/0x330 drivers/input/input.c:461
evdev_write+0x668/0x7c0 drivers/input/evdev.c:530
vfs_write+0x2d9/0xba0 fs/read_write.c:582
ksys_write+0x19c/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
stack backtrace:
CPU: 0 PID: 10741 Comm: syz-executor.5 Not tainted 6.1.62-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
print_bad_irq_dependency kernel/locking/lockdep.c:2604 [inline]
check_irq_usage kernel/locking/lockdep.c:2843 [inline]
check_prev_add kernel/locking/lockdep.c:3094 [inline]
check_prevs_add kernel/locking/lockdep.c:3209 [inline]
validate_chain+0x4d2e/0x58e0 kernel/locking/lockdep.c:3824
__lock_acquire+0x125b/0x1f80 kernel/locking/lockdep.c:5048
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5661
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236
kill_fasync_rcu fs/fcntl.c:996 [inline]
kill_fasync+0x196/0x4d0 fs/fcntl.c:1017
__pass_event drivers/input/evdev.c:240 [inline]
evdev_pass_values+0x586/0xad0 drivers/input/evdev.c:278
evdev_events+0x1be/0x2f0 drivers/input/evdev.c:306
input_to_handler drivers/input/input.c:127 [inline]
input_pass_values+0x8e0/0x12a0 drivers/input/input.c:159
input_event_dispose+0x366/0x650 drivers/input/input.c:374
input_handle_event+0x97d/0xb00 drivers/input/input.c:402
input_inject_event+0x224/0x330 drivers/input/input.c:461
evdev_write+0x668/0x7c0 drivers/input/evdev.c:530
vfs_write+0x2d9/0xba0 fs/read_write.c:582
ksys_write+0x19c/0x2c0 fs/read_write.c:637
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd352c7cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd3539b60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fd352d9bf80 RCX: 00007fd352c7cae9
RDX: 0000000000000373 RSI: 0000000020000040 RDI: 0000000000000003
RBP: 00007fd352cc847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fd352d9bf80 R15: 00007fffc60e6688
</TASK>