======================================================== WARNING: possible irq lock inversion dependency detected 6.11.0-rc7-syzkaller-00020-g8d8d276ba2fb #0 Not tainted -------------------------------------------------------- swapper/0/0 just changed the state of lock: ffff88801fb26230 (&dev->event_lock#2){..-.}-{2:2}, at: input_inject_event+0xc5/0x340 drivers/input/input.c:423 but this lock took another, SOFTIRQ-READ-unsafe lock in the past: (tasklist_lock){.+.+}-{2:2} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Chain exists of: &dev->event_lock#2 --> &client->buffer_lock --> tasklist_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(tasklist_lock); local_irq_disable(); lock(&dev->event_lock#2); lock(&client->buffer_lock); lock(&dev->event_lock#2); *** DEADLOCK *** 2 locks held by swapper/0/0: #0: ffffc90000007c00 (drivers/tty/vt/keyboard.c:274){+.-.}-{0:0}, at: call_timer_fn+0xc0/0x650 kernel/time/timer.c:1789 #1: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline] #1: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline] #1: ffffffff8e938320 (rcu_read_lock){....}-{1:2}, at: input_handler_for_each_handle+0x29/0x1d0 drivers/input/input.c:2676 the shortest dependencies between 2nd lock and 1st lock: -> (tasklist_lock){.+.+}-{2:2} { HARDIRQ-ON-R at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228 __do_wait+0x12d/0x850 kernel/exit.c:1591 do_wait+0x1e9/0x560 kernel/exit.c:1635 kernel_wait+0xe9/0x240 kernel/exit.c:1811 call_usermodehelper_exec_sync kernel/umh.c:137 [inline] call_usermodehelper_exec_work+0xbd/0x230 kernel/umh.c:164 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 SOFTIRQ-ON-R at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228 __do_wait+0x12d/0x850 kernel/exit.c:1591 do_wait+0x1e9/0x560 kernel/exit.c:1635 kernel_wait+0xe9/0x240 kernel/exit.c:1811 call_usermodehelper_exec_sync kernel/umh.c:137 [inline] call_usermodehelper_exec_work+0xbd/0x230 kernel/umh.c:164 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INITIAL USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline] _raw_write_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:326 copy_process+0x228b/0x3dc0 kernel/fork.c:2500 kernel_clone+0x226/0x8f0 kernel/fork.c:2781 user_mode_thread+0x132/0x1a0 kernel/fork.c:2859 rest_init+0x23/0x300 init/main.c:712 start_kernel+0x47a/0x500 init/main.c:1103 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507 x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488 common_startup_64+0x13e/0x147 INITIAL READ USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228 __do_wait+0x12d/0x850 kernel/exit.c:1591 do_wait+0x1e9/0x560 kernel/exit.c:1635 kernel_wait+0xe9/0x240 kernel/exit.c:1811 call_usermodehelper_exec_sync kernel/umh.c:137 [inline] call_usermodehelper_exec_work+0xbd/0x230 kernel/umh.c:164 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 } ... key at: [] tasklist_lock+0x18/0x40 ... acquired at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock include/linux/rwlock_api_smp.h:150 [inline] _raw_read_lock+0x36/0x50 kernel/locking/spinlock.c:228 send_sigurg+0xee/0x3c0 fs/fcntl.c:871 sk_send_sigurg+0x75/0x2f0 net/core/sock.c:3432 tcp_check_urg+0x207/0x740 net/ipv4/tcp_input.c:5831 tcp_urg+0x15c/0x450 net/ipv4/tcp_input.c:5872 tcp_rcv_established+0xfaf/0x2020 net/ipv4/tcp_input.c:6227 tcp_v4_do_rcv+0x96d/0xc70 net/ipv4/tcp_ipv4.c:1911 sk_backlog_rcv include/net/sock.h:1111 [inline] __release_sock+0x214/0x350 net/core/sock.c:3004 release_sock+0x61/0x1f0 net/core/sock.c:3558 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1355 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x1a6/0x270 net/socket.c:745 __sys_sendto+0x3a4/0x4f0 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __ia32_sys_sendto+0xdd/0x100 net/socket.c:2212 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e -> (&f->f_owner.lock){...-}-{2:2} { IN-SOFTIRQ-R at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 send_sigurg+0x29/0x3c0 fs/fcntl.c:855 sk_send_sigurg+0x75/0x2f0 net/core/sock.c:3432 tcp_check_urg+0x207/0x740 net/ipv4/tcp_input.c:5831 tcp_urg+0x15c/0x450 net/ipv4/tcp_input.c:5872 tcp_rcv_established+0xfaf/0x2020 net/ipv4/tcp_input.c:6227 tcp_v6_do_rcv+0x5c8/0x13a0 net/ipv6/tcp_ipv6.c:1640 tcp_v6_rcv+0x253a/0x2fb0 net/ipv6/tcp_ipv6.c:1912 ip6_protocol_deliver_rcu+0xc79/0x1580 net/ipv6/ip6_input.c:438 ip6_input_finish+0x187/0x2d0 net/ipv6/ip6_input.c:483 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314 __netif_receive_skb_one_core net/core/dev.c:5661 [inline] __netif_receive_skb+0x1ea/0x650 net/core/dev.c:5775 process_backlog+0x662/0x15b0 net/core/dev.c:6108 __napi_poll+0xcb/0x490 net/core/dev.c:6772 napi_poll net/core/dev.c:6841 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6963 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 sk_stream_wait_memory+0x762/0xfa0 net/core/stream.c:145 tcp_sendmsg_locked+0x1471/0x4e10 net/ipv4/tcp.c:1312 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1354 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xef/0x270 net/socket.c:745 __sys_sendto+0x3a4/0x4f0 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __ia32_sys_sendto+0xdd/0x100 net/socket.c:2212 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e INITIAL USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline] _raw_write_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:326 f_modown+0x38/0x340 fs/fcntl.c:93 fcntl_dirnotify+0x57d/0x740 fs/notify/dnotify/dnotify.c:368 do_fcntl+0x492/0x1730 fs/fcntl.c:441 do_compat_fcntl64+0x572/0x1050 fs/fcntl.c:696 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e INITIAL READ USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 send_sigio+0x33/0x360 fs/fcntl.c:816 kill_fasync_rcu fs/fcntl.c:1035 [inline] kill_fasync+0x23a/0x4d0 fs/fcntl.c:1049 sock_wake_async+0x147/0x170 sk_wake_async+0x18a/0x290 include/net/sock.h:2440 tcp_rcv_state_process+0x1dda/0x4570 net/ipv4/tcp_input.c:6808 tcp_v6_do_rcv+0x8bc/0x13a0 net/ipv6/tcp_ipv6.c:1665 sk_backlog_rcv include/net/sock.h:1111 [inline] __release_sock+0x1c8/0x350 net/core/sock.c:3004 release_sock+0x61/0x1f0 net/core/sock.c:3558 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1355 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xef/0x270 net/socket.c:745 __sys_sendto+0x3a4/0x4f0 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __ia32_sys_sendto+0xdd/0x100 net/socket.c:2212 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e } ... key at: [] init_file.__key+0x0/0x20 ... acquired at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 send_sigio+0x33/0x360 fs/fcntl.c:816 kill_fasync_rcu fs/fcntl.c:1035 [inline] kill_fasync+0x23a/0x4d0 fs/fcntl.c:1049 sock_wake_async+0x147/0x170 sk_wake_async+0x18a/0x290 include/net/sock.h:2440 tcp_rcv_state_process+0x1dda/0x4570 net/ipv4/tcp_input.c:6808 tcp_v6_do_rcv+0x8bc/0x13a0 net/ipv6/tcp_ipv6.c:1665 sk_backlog_rcv include/net/sock.h:1111 [inline] __release_sock+0x1c8/0x350 net/core/sock.c:3004 release_sock+0x61/0x1f0 net/core/sock.c:3558 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1355 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xef/0x270 net/socket.c:745 __sys_sendto+0x3a4/0x4f0 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __ia32_sys_sendto+0xdd/0x100 net/socket.c:2212 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e -> (&new->fa_lock){...-}-{2:2} { IN-SOFTIRQ-R at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 kill_fasync_rcu fs/fcntl.c:1028 [inline] kill_fasync+0x19e/0x4d0 fs/fcntl.c:1049 sock_wake_async+0x147/0x170 sk_wake_async_rcu include/net/sock.h:2448 [inline] sock_def_readable+0x3df/0x5b0 net/core/sock.c:3376 tcp_data_queue+0x20fd/0x76c0 net/ipv4/tcp_input.c:5283 tcp_rcv_established+0xfba/0x2020 net/ipv4/tcp_input.c:6230 tcp_v6_do_rcv+0x5c8/0x13a0 net/ipv6/tcp_ipv6.c:1640 tcp_v6_rcv+0x253a/0x2fb0 net/ipv6/tcp_ipv6.c:1912 ip6_protocol_deliver_rcu+0xc79/0x1580 net/ipv6/ip6_input.c:438 ip6_input_finish+0x187/0x2d0 net/ipv6/ip6_input.c:483 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314 __netif_receive_skb_one_core net/core/dev.c:5661 [inline] __netif_receive_skb+0x1ea/0x650 net/core/dev.c:5775 process_backlog+0x662/0x15b0 net/core/dev.c:6108 __napi_poll+0xcb/0x490 net/core/dev.c:6772 napi_poll net/core/dev.c:6841 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:6963 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 do_softirq+0x11b/0x1e0 kernel/softirq.c:455 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 sk_stream_wait_memory+0x762/0xfa0 net/core/stream.c:145 tcp_sendmsg_locked+0x1471/0x4e10 net/ipv4/tcp.c:1312 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1354 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xef/0x270 net/socket.c:745 __sys_sendto+0x3a4/0x4f0 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __ia32_sys_sendto+0xdd/0x100 net/socket.c:2212 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e INITIAL USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_write_lock_irq include/linux/rwlock_api_smp.h:195 [inline] _raw_write_lock_irq+0xd3/0x120 kernel/locking/spinlock.c:326 fasync_remove_entry+0xff/0x1d0 fs/fcntl.c:905 sock_fasync+0x8a/0x100 net/socket.c:1446 __fput+0x73e/0x8a0 fs/file_table.c:419 task_work_run+0x24f/0x310 kernel/task_work.c:228 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x168/0x370 kernel/entry/common.c:218 __do_fast_syscall_32+0xc4/0x110 arch/x86/entry/common.c:389 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e INITIAL READ USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 kill_fasync_rcu fs/fcntl.c:1028 [inline] kill_fasync+0x19e/0x4d0 fs/fcntl.c:1049 sock_wake_async+0x147/0x170 sk_wake_async+0x18a/0x290 include/net/sock.h:2440 tcp_rcv_state_process+0x1dda/0x4570 net/ipv4/tcp_input.c:6808 tcp_v6_do_rcv+0x8bc/0x13a0 net/ipv6/tcp_ipv6.c:1665 sk_backlog_rcv include/net/sock.h:1111 [inline] __release_sock+0x1c8/0x350 net/core/sock.c:3004 release_sock+0x61/0x1f0 net/core/sock.c:3558 tcp_sendmsg+0x3a/0x50 net/ipv4/tcp.c:1355 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xef/0x270 net/socket.c:745 __sys_sendto+0x3a4/0x4f0 net/socket.c:2204 __do_sys_sendto net/socket.c:2216 [inline] __se_sys_sendto net/socket.c:2212 [inline] __ia32_sys_sendto+0xdd/0x100 net/socket.c:2212 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e } ... key at: [] fasync_insert_entry.__key+0x0/0x20 ... acquired at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline] _raw_read_lock_irqsave+0xdd/0x130 kernel/locking/spinlock.c:236 kill_fasync_rcu fs/fcntl.c:1028 [inline] kill_fasync+0x19e/0x4d0 fs/fcntl.c:1049 __pass_event drivers/input/evdev.c:240 [inline] evdev_pass_values+0x58a/0xad0 drivers/input/evdev.c:278 evdev_events+0x1c2/0x300 drivers/input/evdev.c:306 input_pass_values+0x286/0x860 drivers/input/input.c:126 input_event_dispose+0x30f/0x600 drivers/input/input.c:341 input_handle_event+0xa71/0xbe0 drivers/input/input.c:369 input_inject_event+0x22f/0x340 drivers/input/input.c:428 evdev_write+0x672/0x7c0 drivers/input/evdev.c:521 vfs_write+0x2a2/0xc90 fs/read_write.c:588 ksys_write+0x1a0/0x2c0 fs/read_write.c:643 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e -> (&client->buffer_lock){....}-{2:2} { INITIAL USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] evdev_handle_get_val+0x67/0x820 drivers/input/evdev.c:891 evdev_do_ioctl drivers/input/evdev.c:1154 [inline] evdev_ioctl_handler+0x12f8/0x21b0 drivers/input/evdev.c:1263 __do_compat_sys_ioctl fs/ioctl.c:1007 [inline] __se_compat_sys_ioctl+0x51c/0xca0 fs/ioctl.c:950 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e } ... key at: [] evdev_open.__key.24+0x0/0x20 ... acquired at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] evdev_handle_get_val+0x67/0x820 drivers/input/evdev.c:891 evdev_do_ioctl drivers/input/evdev.c:1154 [inline] evdev_ioctl_handler+0x12f8/0x21b0 drivers/input/evdev.c:1263 __do_compat_sys_ioctl fs/ioctl.c:1007 [inline] __se_compat_sys_ioctl+0x51c/0xca0 fs/ioctl.c:950 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386 do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e -> (&dev->event_lock#2){..-.}-{2:2} { IN-SOFTIRQ-W at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 input_inject_event+0xc5/0x340 drivers/input/input.c:423 kd_sound_helper+0x101/0x210 drivers/tty/vt/keyboard.c:256 input_handler_for_each_handle+0x103/0x1d0 drivers/input/input.c:2679 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline] acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702 cpuidle_enter_state+0x112/0x480 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:230 [inline] do_idle+0x375/0x5d0 kernel/sched/idle.c:326 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424 rest_init+0x2dc/0x300 init/main.c:747 start_kernel+0x47a/0x500 init/main.c:1103 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507 x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488 common_startup_64+0x13e/0x147 INITIAL USE at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 input_inject_event+0xc5/0x340 drivers/input/input.c:423 kbd_led_trigger_activate+0xb8/0x100 drivers/tty/vt/keyboard.c:1036 led_trigger_set+0x582/0x9c0 drivers/leds/led-triggers.c:212 led_match_default_trigger drivers/leds/led-triggers.c:269 [inline] led_trigger_set_default+0x229/0x260 drivers/leds/led-triggers.c:287 led_classdev_register_ext+0x6e6/0x8a0 drivers/leds/led-class.c:555 led_classdev_register include/linux/leds.h:273 [inline] input_leds_connect+0x489/0x630 drivers/input/input-leds.c:145 input_attach_handler drivers/input/input.c:1027 [inline] input_register_device+0xd3b/0x1110 drivers/input/input.c:2473 atkbd_connect+0x752/0xa00 drivers/input/keyboard/atkbd.c:1342 serio_connect_driver drivers/input/serio/serio.c:44 [inline] serio_driver_probe+0x7f/0xa0 drivers/input/serio/serio.c:775 really_probe+0x2b8/0xad0 drivers/base/dd.c:657 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:799 driver_probe_device+0x50/0x430 drivers/base/dd.c:829 __driver_attach+0x45f/0x710 drivers/base/dd.c:1215 bus_for_each_dev+0x239/0x2b0 drivers/base/bus.c:368 serio_attach_driver drivers/input/serio/serio.c:804 [inline] serio_handle_event+0x1c7/0x920 drivers/input/serio/serio.c:224 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd10 kernel/workqueue.c:3389 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 } ... key at: [] input_allocate_device.__key.5+0x0/0x20 ... acquired at: mark_lock+0x223/0x350 kernel/locking/lockdep.c:4677 __lock_acquire+0xbf9/0x2040 kernel/locking/lockdep.c:5096 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 input_inject_event+0xc5/0x340 drivers/input/input.c:423 kd_sound_helper+0x101/0x210 drivers/tty/vt/keyboard.c:256 input_handler_for_each_handle+0x103/0x1d0 drivers/input/input.c:2679 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 native_safe_halt arch/x86/include/asm/irqflags.h:48 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:106 [inline] acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:111 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702 cpuidle_enter_state+0x112/0x480 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:230 [inline] do_idle+0x375/0x5d0 kernel/sched/idle.c:326 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424 rest_init+0x2dc/0x300 init/main.c:747 start_kernel+0x47a/0x500 init/main.c:1103 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507 x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488 common_startup_64+0x13e/0x147 stack backtrace: CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.11.0-rc7-syzkaller-00020-g8d8d276ba2fb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Call Trace: __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 mark_lock_irq+0x80c/0xc20 kernel/locking/lockdep.c:4242 mark_lock+0x223/0x350 kernel/locking/lockdep.c:4677 __lock_acquire+0xbf9/0x2040 kernel/locking/lockdep.c:5096 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162 input_inject_event+0xc5/0x340 drivers/input/input.c:423 kd_sound_helper+0x101/0x210 drivers/tty/vt/keyboard.c:256 input_handler_for_each_handle+0x103/0x1d0 drivers/input/input.c:2679 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline] RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline] RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112 Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d7 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d b5 73 b0 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 RSP: 0018:ffffffff8e607ca8 EFLAGS: 00000246 RAX: ffffffff8e694680 RBX: ffff88801e686864 RCX: 000000000027d8d1 RDX: 0000000000000001 RSI: ffff88801e686800 RDI: ffff88801e686864 RBP: 000000000003a678 R08: ffff8880b8837c7b R09: 1ffff11017106f8f R10: dffffc0000000000 R11: ffffffff8bb9ccc0 R12: ffff8880217d2000 R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8f0e4220 acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:702 cpuidle_enter_state+0x112/0x480 drivers/cpuidle/cpuidle.c:267 cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:388 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:230 [inline] do_idle+0x375/0x5d0 kernel/sched/idle.c:326 cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:424 rest_init+0x2dc/0x300 init/main.c:747 start_kernel+0x47a/0x500 init/main.c:1103 x86_64_start_reservations+0x2a/0x30 arch/x86/kernel/head64.c:507 x86_64_start_kernel+0x9f/0xa0 arch/x86/kernel/head64.c:488 common_startup_64+0x13e/0x147 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 65 48 8b 04 25 00 d7 mov %gs:0x3d700,%rax 10: 03 00 12: 48 f7 00 08 00 00 00 testq $0x8,(%rax) 19: 75 10 jne 0x2b 1b: 66 90 xchg %ax,%ax 1d: 0f 00 2d b5 73 b0 00 verw 0xb073b5(%rip) # 0xb073d9 24: f3 0f 1e fa endbr64 28: fb sti 29: f4 hlt * 2a: fa cli <-- trapping instruction 2b: c3 ret 2c: cc int3 2d: cc int3 2e: cc int3 2f: cc int3 30: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) 37: 00 00 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop