netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 ===================================================== WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected 5.14.0-rc2-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor033/8463 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: ffff888035761018 (&new->fa_lock){.+.+}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1012 [inline] ffff888035761018 (&new->fa_lock){.+.+}-{2:2}, at: kill_fasync fs/fcntl.c:1033 [inline] ffff888035761018 (&new->fa_lock){.+.+}-{2:2}, at: kill_fasync+0x132/0x460 fs/fcntl.c:1026 and this task is already holding: ffff888034e40028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] ffff888034e40028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x970 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 HARDIRQ-irq-safe lock: (&dev->event_lock){-...}-{2:2} ... which became HARDIRQ-irq-safe at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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+0x102/0x280 kernel/irq/handle.c:213 handle_edge_irq+0x25f/0xd00 kernel/irq/chip.c:819 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline] handle_irq arch/x86/kernel/irq.c:231 [inline] __common_interrupt+0x9d/0x210 arch/x86/kernel/irq.c:250 common_interrupt+0x9f/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] _raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191 spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] i8042_command+0x12e/0x150 drivers/input/serio/i8042.c:352 i8042_aux_write+0xd7/0x120 drivers/input/serio/i8042.c:387 serio_write include/linux/serio.h:125 [inline] ps2_do_sendbyte+0x2cf/0x710 drivers/input/serio/libps2.c:40 ps2_sendbyte+0x58/0x150 drivers/input/serio/libps2.c:92 cypress_ps2_sendbyte+0x2e/0x160 drivers/input/mouse/cypress_ps2.c:42 cypress_ps2_read_cmd_status drivers/input/mouse/cypress_ps2.c:116 [inline] cypress_send_ext_cmd+0x1d0/0x8e0 drivers/input/mouse/cypress_ps2.c:189 cypress_detect+0x75/0x190 drivers/input/mouse/cypress_ps2.c:205 psmouse_do_detect drivers/input/mouse/psmouse-base.c:1009 [inline] psmouse_try_protocol+0x211/0x370 drivers/input/mouse/psmouse-base.c:1023 psmouse_extensions+0x557/0x930 drivers/input/mouse/psmouse-base.c:1146 psmouse_switch_protocol+0x52a/0x740 drivers/input/mouse/psmouse-base.c:1542 psmouse_connect+0x5e9/0xfd0 drivers/input/mouse/psmouse-base.c:1632 serio_connect_driver drivers/input/serio/serio.c:47 [inline] serio_driver_probe+0x72/0xa0 drivers/input/serio/serio.c:778 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x23c/0xcd0 drivers/base/dd.c:595 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:747 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:777 __driver_attach+0x22d/0x4e0 drivers/base/dd.c:1136 bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301 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/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 to a HARDIRQ-irq-unsafe lock: (&new->fa_lock){.+.+}-{2:2} ... which became HARDIRQ-irq-unsafe at: ... lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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:1012 [inline] kill_fasync fs/fcntl.c:1033 [inline] kill_fasync+0x132/0x460 fs/fcntl.c:1026 sock_wake_async+0xd2/0x160 net/socket.c:1354 sk_wake_async include/net/sock.h:2327 [inline] sk_wake_async+0x108/0x290 include/net/sock.h:2323 tcp_rcv_synsent_state_process net/ipv4/tcp_input.c:6179 [inline] tcp_rcv_state_process+0x1afe/0x4bd0 net/ipv4/tcp_input.c:6371 tcp_v4_do_rcv+0x323/0x880 net/ipv4/tcp_ipv4.c:1716 sk_backlog_rcv include/net/sock.h:1023 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2655 release_sock+0x54/0x1b0 net/core/sock.c:3179 inet_wait_for_connect net/ipv4/af_inet.c:597 [inline] __inet_stream_connect+0x5db/0xed0 net/ipv4/af_inet.c:689 tcp_sendmsg_fastopen net/ipv4/tcp.c:1190 [inline] tcp_sendmsg_locked+0x209e/0x2f10 net/ipv4/tcp.c:1232 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1461 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:703 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:723 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2392 ___sys_sendmsg+0xf3/0x170 net/socket.c:2446 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2475 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae other info that might help us debug this: Chain exists of: &dev->event_lock --> &client->buffer_lock --> &new->fa_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&new->fa_lock); local_irq_disable(); lock(&dev->event_lock); lock(&client->buffer_lock); lock(&dev->event_lock); *** DEADLOCK *** 7 locks held by syz-executor033/8463: #0: ffff888022081110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x1d3/0x760 drivers/input/evdev.c:513 #1: ffff88801c45a230 (&dev->event_lock){-...}-{2:2}, at: input_inject_event+0xa6/0x320 drivers/input/input.c:471 #2: ffffffff8b97b9c0 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:53 [inline] #2: ffffffff8b97b9c0 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:50 [inline] #2: ffffffff8b97b9c0 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0x92/0x320 drivers/input/input.c:470 #3: ffffffff8b97b9c0 (rcu_read_lock){....}-{1:2}, at: input_dev_toggle drivers/input/input.c:1712 [inline] #3: ffffffff8b97b9c0 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x710 drivers/input/input.c:1832 #4: ffffffff8b97b9c0 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x59/0x3e0 drivers/input/evdev.c:296 #5: ffff888034e40028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] #5: ffff888034e40028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x970 drivers/input/evdev.c:261 #6: ffffffff8b97b9c0 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x3d/0x460 fs/fcntl.c:1031 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:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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+0x102/0x280 kernel/irq/handle.c:213 handle_edge_irq+0x25f/0xd00 kernel/irq/chip.c:819 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline] handle_irq arch/x86/kernel/irq.c:231 [inline] __common_interrupt+0x9d/0x210 arch/x86/kernel/irq.c:250 common_interrupt+0x9f/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] _raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191 spin_unlock_irqrestore include/linux/spinlock.h:409 [inline] i8042_command+0x12e/0x150 drivers/input/serio/i8042.c:352 i8042_aux_write+0xd7/0x120 drivers/input/serio/i8042.c:387 serio_write include/linux/serio.h:125 [inline] ps2_do_sendbyte+0x2cf/0x710 drivers/input/serio/libps2.c:40 ps2_sendbyte+0x58/0x150 drivers/input/serio/libps2.c:92 cypress_ps2_sendbyte+0x2e/0x160 drivers/input/mouse/cypress_ps2.c:42 cypress_ps2_read_cmd_status drivers/input/mouse/cypress_ps2.c:116 [inline] cypress_send_ext_cmd+0x1d0/0x8e0 drivers/input/mouse/cypress_ps2.c:189 cypress_detect+0x75/0x190 drivers/input/mouse/cypress_ps2.c:205 psmouse_do_detect drivers/input/mouse/psmouse-base.c:1009 [inline] psmouse_try_protocol+0x211/0x370 drivers/input/mouse/psmouse-base.c:1023 psmouse_extensions+0x557/0x930 drivers/input/mouse/psmouse-base.c:1146 psmouse_switch_protocol+0x52a/0x740 drivers/input/mouse/psmouse-base.c:1542 psmouse_connect+0x5e9/0xfd0 drivers/input/mouse/psmouse-base.c:1632 serio_connect_driver drivers/input/serio/serio.c:47 [inline] serio_driver_probe+0x72/0xa0 drivers/input/serio/serio.c:778 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x23c/0xcd0 drivers/base/dd.c:595 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:747 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:777 __driver_attach+0x22d/0x4e0 drivers/base/dd.c:1136 bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301 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/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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+0xa6/0x320 drivers/input/input.c:471 __led_set_brightness drivers/leds/led-core.c:47 [inline] led_set_brightness_nopm drivers/leds/led-core.c:271 [inline] led_set_brightness_nosleep+0xe6/0x1a0 drivers/leds/led-core.c:287 led_set_brightness+0x134/0x170 drivers/leds/led-core.c:264 led_trigger_event drivers/leds/led-triggers.c:388 [inline] led_trigger_event+0x75/0xd0 drivers/leds/led-triggers.c:377 kbd_led_trigger_activate+0xc9/0x100 drivers/tty/vt/keyboard.c:1029 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:412 led_classdev_register include/linux/leds.h:190 [inline] input_leds_connect+0x4bd/0x860 drivers/input/input-leds.c:139 input_attach_handler+0x180/0x1f0 drivers/input/input.c:1035 input_register_device.cold+0xf0/0x304 drivers/input/input.c:2335 atkbd_connect+0x739/0xa00 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 call_driver_probe drivers/base/dd.c:517 [inline] really_probe+0x23c/0xcd0 drivers/base/dd.c:595 __driver_probe_device+0x338/0x4d0 drivers/base/dd.c:747 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:777 __driver_attach+0x22d/0x4e0 drivers/base/dd.c:1136 bus_for_each_dev+0x147/0x1d0 drivers/base/bus.c:301 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/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 } ... key at: [] __key.8+0x0/0x40 -> (&client->buffer_lock){....}-{2:2} { INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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+0x359/0x3e0 drivers/input/evdev.c:306 input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115 input_pass_values.part.0+0x230/0x710 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+0x1bd/0x320 drivers/input/input.c:476 evdev_write+0x430/0x760 drivers/input/evdev.c:530 vfs_write+0x28e/0xa40 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae } ... key at: [] __key.4+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+0x359/0x3e0 drivers/input/evdev.c:306 input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115 input_pass_values.part.0+0x230/0x710 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+0x1bd/0x320 drivers/input/input.c:476 evdev_write+0x430/0x760 drivers/input/evdev.c:530 vfs_write+0x28e/0xa40 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae the dependencies between the lock to be acquired and HARDIRQ-irq-unsafe lock: -> (&new->fa_lock){.+.+}-{2:2} { HARDIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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:1012 [inline] kill_fasync fs/fcntl.c:1033 [inline] kill_fasync+0x132/0x460 fs/fcntl.c:1026 sock_wake_async+0xd2/0x160 net/socket.c:1354 sk_wake_async include/net/sock.h:2327 [inline] sk_wake_async+0x108/0x290 include/net/sock.h:2323 tcp_rcv_synsent_state_process net/ipv4/tcp_input.c:6179 [inline] tcp_rcv_state_process+0x1afe/0x4bd0 net/ipv4/tcp_input.c:6371 tcp_v4_do_rcv+0x323/0x880 net/ipv4/tcp_ipv4.c:1716 sk_backlog_rcv include/net/sock.h:1023 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2655 release_sock+0x54/0x1b0 net/core/sock.c:3179 inet_wait_for_connect net/ipv4/af_inet.c:597 [inline] __inet_stream_connect+0x5db/0xed0 net/ipv4/af_inet.c:689 tcp_sendmsg_fastopen net/ipv4/tcp.c:1190 [inline] tcp_sendmsg_locked+0x209e/0x2f10 net/ipv4/tcp.c:1232 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1461 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:703 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:723 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2392 ___sys_sendmsg+0xf3/0x170 net/socket.c:2446 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2475 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae SOFTIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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:1012 [inline] kill_fasync fs/fcntl.c:1033 [inline] kill_fasync+0x132/0x460 fs/fcntl.c:1026 sock_wake_async+0xd2/0x160 net/socket.c:1354 sk_wake_async include/net/sock.h:2327 [inline] sk_wake_async+0x108/0x290 include/net/sock.h:2323 tcp_rcv_synsent_state_process net/ipv4/tcp_input.c:6179 [inline] tcp_rcv_state_process+0x1afe/0x4bd0 net/ipv4/tcp_input.c:6371 tcp_v4_do_rcv+0x323/0x880 net/ipv4/tcp_ipv4.c:1716 sk_backlog_rcv include/net/sock.h:1023 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2655 release_sock+0x54/0x1b0 net/core/sock.c:3179 inet_wait_for_connect net/ipv4/af_inet.c:597 [inline] __inet_stream_connect+0x5db/0xed0 net/ipv4/af_inet.c:689 tcp_sendmsg_fastopen net/ipv4/tcp.c:1190 [inline] tcp_sendmsg_locked+0x209e/0x2f10 net/ipv4/tcp.c:1232 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1461 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:703 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:723 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2392 ___sys_sendmsg+0xf3/0x170 net/socket.c:2446 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2475 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae INITIAL READ USE at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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:1012 [inline] kill_fasync fs/fcntl.c:1033 [inline] kill_fasync+0x132/0x460 fs/fcntl.c:1026 sock_wake_async+0xd2/0x160 net/socket.c:1354 sk_wake_async include/net/sock.h:2327 [inline] sk_wake_async+0x108/0x290 include/net/sock.h:2323 tcp_rcv_synsent_state_process net/ipv4/tcp_input.c:6179 [inline] tcp_rcv_state_process+0x1afe/0x4bd0 net/ipv4/tcp_input.c:6371 tcp_v4_do_rcv+0x323/0x880 net/ipv4/tcp_ipv4.c:1716 sk_backlog_rcv include/net/sock.h:1023 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2655 release_sock+0x54/0x1b0 net/core/sock.c:3179 inet_wait_for_connect net/ipv4/af_inet.c:597 [inline] __inet_stream_connect+0x5db/0xed0 net/ipv4/af_inet.c:689 tcp_sendmsg_fastopen net/ipv4/tcp.c:1190 [inline] tcp_sendmsg_locked+0x209e/0x2f10 net/ipv4/tcp.c:1232 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1461 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:703 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:723 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2392 ___sys_sendmsg+0xf3/0x170 net/socket.c:2446 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2475 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae } ... key at: [] __key.0+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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:1012 [inline] kill_fasync fs/fcntl.c:1033 [inline] kill_fasync+0x132/0x460 fs/fcntl.c:1026 __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+0x359/0x3e0 drivers/input/evdev.c:306 input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115 input_pass_values.part.0+0x230/0x710 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+0x1bd/0x320 drivers/input/input.c:476 evdev_write+0x430/0x760 drivers/input/evdev.c:530 vfs_write+0x28e/0xa40 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae stack backtrace: CPU: 0 PID: 8463 Comm: syz-executor033 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 print_bad_irq_dependency kernel/locking/lockdep.c:2565 [inline] check_irq_usage.cold+0x4c1/0x6b0 kernel/locking/lockdep.c:2804 check_prev_add kernel/locking/lockdep.c:3055 [inline] check_prevs_add kernel/locking/lockdep.c:3174 [inline] validate_chain kernel/locking/lockdep.c:3789 [inline] __lock_acquire+0x2a1f/0x54a0 kernel/locking/lockdep.c:5015 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __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:1012 [inline] kill_fasync fs/fcntl.c:1033 [inline] kill_fasync+0x132/0x460 fs/fcntl.c:1026 __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+0x359/0x3e0 drivers/input/evdev.c:306 input_to_handler+0x2a0/0x4c0 drivers/input/input.c:115 input_pass_values.part.0+0x230/0x710 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+0x1bd/0x320 drivers/input/input.c:476 evdev_write+0x430/0x760 drivers/input/evdev.c:530 vfs_write+0x28e/0xa40 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x447879 Code: 28 c3 e8 4a 15 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 RSP: 002b:00007ffe68b9efd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007ffe68b9efe8 RCX: 0000000000447879 RDX: 0000000000035000 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe68b9eff0 R13: 00007ffe68b9f010 R14: 00000000004b8018 R15: 00000000004004b8