===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 5.11.0-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor.4/4076 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: ffff88802524a2b8 (&new->fa_lock){.+.?}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1012 [inline] ffff88802524a2b8 (&new->fa_lock){.+.?}-{2:2}, at: kill_fasync fs/fcntl.c:1033 [inline] ffff88802524a2b8 (&new->fa_lock){.+.?}-{2:2}, at: kill_fasync+0x14b/0x460 fs/fcntl.c:1026 and this task is already holding: ffff88801c143028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] ffff88801c143028 (&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 SOFTIRQ-irq-safe lock: (&evdev->mutex){+.+.}-{3:3} ... which became SOFTIRQ-irq-safe at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __mutex_lock_common kernel/locking/mutex.c:946 [inline] __mutex_lock+0x139/0x1120 kernel/locking/mutex.c:1093 evdev_mark_dead drivers/input/evdev.c:1314 [inline] evdev_cleanup+0x21/0x1a0 drivers/input/evdev.c:1323 evdev_disconnect+0x45/0xb0 drivers/input/evdev.c:1407 __input_unregister_device+0x206/0x470 drivers/input/input.c:2189 input_unregister_device+0xb4/0xf0 drivers/input/input.c:2379 pegasus_disconnect+0x61/0x1e0 drivers/input/tablet/pegasus_notetaker.c:393 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458 __device_release_driver+0x3bd/0x6f0 drivers/base/dd.c:1156 device_release_driver_internal drivers/base/dd.c:1187 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1210 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533 device_del+0x502/0xd40 drivers/base/core.c:3421 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1413 usb_disconnect.cold+0x27d/0x791 drivers/usb/core/hub.c:2218 hub_port_connect drivers/usb/core/hub.c:5074 [inline] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline] port_event drivers/usb/core/hub.c:5509 [inline] hub_event+0x1c9c/0x4320 drivers/usb/core/hub.c:5591 process_one_work+0x98d/0x1600 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:294 to a SOFTIRQ-irq-unsafe lock: (&new->fa_lock){.+.?}-{2:2} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x36/0x70 kernel/locking/spinlock.c:223 kill_fasync_rcu fs/fcntl.c:1012 [inline] kill_fasync fs/fcntl.c:1033 [inline] kill_fasync+0x14b/0x460 fs/fcntl.c:1026 sock_wake_async+0xf1/0x160 net/socket.c:1315 sk_wake_async include/net/sock.h:2292 [inline] sk_wake_async include/net/sock.h:2288 [inline] sk_send_sigurg net/core/sock.c:2953 [inline] sk_send_sigurg+0x1ae/0x300 net/core/sock.c:2949 tcp_check_urg.isra.0+0x1f4/0x710 net/ipv4/tcp_input.c:5503 tcp_urg net/ipv4/tcp_input.c:5544 [inline] tcp_rcv_established+0x106c/0x1eb0 net/ipv4/tcp_input.c:5878 tcp_v4_do_rcv+0x5d1/0x870 net/ipv4/tcp_ipv4.c:1679 tcp_v4_rcv+0x2d36/0x3780 net/ipv4/tcp_ipv4.c:2062 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:458 [inline] ip_rcv_finish+0x1da/0x2f0 net/ipv4/ip_input.c:429 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:540 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5365 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5479 process_backlog+0x232/0x6c0 net/core/dev.c:6346 __napi_poll+0xaf/0x440 net/core/dev.c:6892 napi_poll net/core/dev.c:6959 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7036 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu kernel/softirq.c:422 [inline] irq_exit_rcu+0x134/0x200 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 check_kcov_mode kernel/kcov.c:165 [inline] __sanitizer_cov_trace_pc+0x37/0x60 kernel/kcov.c:197 tomoyo_domain_quota_is_ok+0x2f1/0x550 security/tomoyo/util.c:1093 tomoyo_supervisor+0x2f2/0xf00 security/tomoyo/common.c:2089 tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline] tomoyo_path_number_perm+0x419/0x590 security/tomoyo/file.c:734 security_file_ioctl+0x50/0xb0 security/security.c:1495 __do_compat_sys_ioctl+0x50/0x230 fs/ioctl.c:803 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c other info that might help us debug this: Chain exists of: &evdev->mutex --> &client->buffer_lock --> &new->fa_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&new->fa_lock); local_irq_disable(); lock(&evdev->mutex); lock(&client->buffer_lock); lock(&evdev->mutex); *** DEADLOCK *** 7 locks held by syz-executor.4/4076: #0: ffff88801d86a110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x1d3/0x760 drivers/input/evdev.c:513 #1: ffff8881431e6230 (&dev->event_lock){-...}-{2:2}, at: input_inject_event+0xa6/0x310 drivers/input/input.c:471 #2: ffffffff8bf74160 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:53 [inline] #2: ffffffff8bf74160 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:50 [inline] #2: ffffffff8bf74160 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0x92/0x310 drivers/input/input.c:470 #3: ffffffff8bf74160 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x700 drivers/input/input.c:837 #4: ffffffff8bf74160 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x59/0x3f0 drivers/input/evdev.c:296 #5: ffff88801c143028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] #5: ffff88801c143028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x970 drivers/input/evdev.c:261 #6: ffffffff8bf74160 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x3d/0x460 fs/fcntl.c:1031 the dependencies between SOFTIRQ-irq-safe lock and the holding lock: -> (&evdev->mutex){+.+.}-{3:3} { HARDIRQ-ON-W at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __mutex_lock_common kernel/locking/mutex.c:946 [inline] __mutex_lock+0x139/0x1120 kernel/locking/mutex.c:1093 evdev_mark_dead drivers/input/evdev.c:1314 [inline] evdev_cleanup+0x21/0x1a0 drivers/input/evdev.c:1323 evdev_disconnect+0x45/0xb0 drivers/input/evdev.c:1407 __input_unregister_device+0x206/0x470 drivers/input/input.c:2189 input_unregister_device+0xb4/0xf0 drivers/input/input.c:2379 pegasus_disconnect+0x61/0x1e0 drivers/input/tablet/pegasus_notetaker.c:393 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458 __device_release_driver+0x3bd/0x6f0 drivers/base/dd.c:1156 device_release_driver_internal drivers/base/dd.c:1187 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1210 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533 device_del+0x502/0xd40 drivers/base/core.c:3421 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1413 usb_disconnect.cold+0x27d/0x791 drivers/usb/core/hub.c:2218 hub_port_connect drivers/usb/core/hub.c:5074 [inline] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline] port_event drivers/usb/core/hub.c:5509 [inline] hub_event+0x1c9c/0x4320 drivers/usb/core/hub.c:5591 process_one_work+0x98d/0x1600 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:294 SOFTIRQ-ON-W at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __mutex_lock_common kernel/locking/mutex.c:946 [inline] __mutex_lock+0x139/0x1120 kernel/locking/mutex.c:1093 evdev_mark_dead drivers/input/evdev.c:1314 [inline] evdev_cleanup+0x21/0x1a0 drivers/input/evdev.c:1323 evdev_disconnect+0x45/0xb0 drivers/input/evdev.c:1407 __input_unregister_device+0x206/0x470 drivers/input/input.c:2189 input_unregister_device+0xb4/0xf0 drivers/input/input.c:2379 pegasus_disconnect+0x61/0x1e0 drivers/input/tablet/pegasus_notetaker.c:393 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458 __device_release_driver+0x3bd/0x6f0 drivers/base/dd.c:1156 device_release_driver_internal drivers/base/dd.c:1187 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1210 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533 device_del+0x502/0xd40 drivers/base/core.c:3421 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1413 usb_disconnect.cold+0x27d/0x791 drivers/usb/core/hub.c:2218 hub_port_connect drivers/usb/core/hub.c:5074 [inline] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline] port_event drivers/usb/core/hub.c:5509 [inline] hub_event+0x1c9c/0x4320 drivers/usb/core/hub.c:5591 process_one_work+0x98d/0x1600 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:294 INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __mutex_lock_common kernel/locking/mutex.c:946 [inline] __mutex_lock+0x139/0x1120 kernel/locking/mutex.c:1093 evdev_mark_dead drivers/input/evdev.c:1314 [inline] evdev_cleanup+0x21/0x1a0 drivers/input/evdev.c:1323 evdev_disconnect+0x45/0xb0 drivers/input/evdev.c:1407 __input_unregister_device+0x206/0x470 drivers/input/input.c:2189 input_unregister_device+0xb4/0xf0 drivers/input/input.c:2379 pegasus_disconnect+0x61/0x1e0 drivers/input/tablet/pegasus_notetaker.c:393 usb_unbind_interface+0x1d8/0x8d0 drivers/usb/core/driver.c:458 __device_release_driver+0x3bd/0x6f0 drivers/base/dd.c:1156 device_release_driver_internal drivers/base/dd.c:1187 [inline] device_release_driver+0x26/0x40 drivers/base/dd.c:1210 bus_remove_device+0x2eb/0x5a0 drivers/base/bus.c:533 device_del+0x502/0xd40 drivers/base/core.c:3421 usb_disable_device+0x35b/0x7b0 drivers/usb/core/message.c:1413 usb_disconnect.cold+0x27d/0x791 drivers/usb/core/hub.c:2218 hub_port_connect drivers/usb/core/hub.c:5074 [inline] hub_port_connect_change drivers/usb/core/hub.c:5363 [inline] port_event drivers/usb/core/hub.c:5509 [inline] hub_event+0x1c9c/0x4320 drivers/usb/core/hub.c:5591 process_one_work+0x98d/0x1600 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:294 } ... key at: [] __key.6+0x0/0x40 ... acquired at: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159 evdev_set_mask drivers/input/evdev.c:980 [inline] evdev_do_ioctl+0x2d7/0x1820 drivers/input/evdev.c:1117 evdev_ioctl_handler drivers/input/evdev.c:1272 [inline] evdev_ioctl_compat+0x144/0x1a0 drivers/input/evdev.c:1288 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c -> (&client->buffer_lock){....}-{2:2} { INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159 evdev_set_mask drivers/input/evdev.c:980 [inline] evdev_do_ioctl+0x2d7/0x1820 drivers/input/evdev.c:1117 evdev_ioctl_handler drivers/input/evdev.c:1272 [inline] evdev_ioctl_compat+0x144/0x1a0 drivers/input/evdev.c:1288 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c } ... key at: [] __key.4+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __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+0x14b/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+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_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: -> (&new->fa_lock){.+.?}-{2:2} { HARDIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __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+0x14b/0x460 fs/fcntl.c:1026 sock_wake_async+0xd2/0x160 net/socket.c:1312 sk_wake_async include/net/sock.h:2292 [inline] sk_wake_async+0x16c/0x280 include/net/sock.h:2288 tcp_rcv_state_process+0x31ce/0x4cb0 net/ipv4/tcp_input.c:6423 tcp_v4_do_rcv+0x320/0x870 net/ipv4/tcp_ipv4.c:1701 sk_backlog_rcv include/net/sock.h:1016 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2556 release_sock+0x54/0x1b0 net/core/sock.c:3080 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:1189 [inline] tcp_sendmsg_locked+0x208f/0x2e40 net/ipv4/tcp.c:1231 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 __sys_sendto+0x21c/0x320 net/socket.c:1977 __do_sys_sendto net/socket.c:1989 [inline] __se_sys_sendto net/socket.c:1985 [inline] __ia32_sys_sendto+0xdb/0x1b0 net/socket.c:1985 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c IN-SOFTIRQ-R at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x36/0x70 kernel/locking/spinlock.c:223 kill_fasync_rcu fs/fcntl.c:1012 [inline] kill_fasync fs/fcntl.c:1033 [inline] kill_fasync+0x14b/0x460 fs/fcntl.c:1026 sock_wake_async+0xf1/0x160 net/socket.c:1315 sk_wake_async include/net/sock.h:2292 [inline] sk_wake_async include/net/sock.h:2288 [inline] sk_send_sigurg net/core/sock.c:2953 [inline] sk_send_sigurg+0x1ae/0x300 net/core/sock.c:2949 tcp_check_urg.isra.0+0x1f4/0x710 net/ipv4/tcp_input.c:5503 tcp_urg net/ipv4/tcp_input.c:5544 [inline] tcp_rcv_established+0x106c/0x1eb0 net/ipv4/tcp_input.c:5878 tcp_v4_do_rcv+0x5d1/0x870 net/ipv4/tcp_ipv4.c:1679 tcp_v4_rcv+0x2d36/0x3780 net/ipv4/tcp_ipv4.c:2062 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:458 [inline] ip_rcv_finish+0x1da/0x2f0 net/ipv4/ip_input.c:429 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:540 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5365 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5479 process_backlog+0x232/0x6c0 net/core/dev.c:6346 __napi_poll+0xaf/0x440 net/core/dev.c:6892 napi_poll net/core/dev.c:6959 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7036 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu kernel/softirq.c:422 [inline] irq_exit_rcu+0x134/0x200 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 check_kcov_mode kernel/kcov.c:165 [inline] __sanitizer_cov_trace_pc+0x37/0x60 kernel/kcov.c:197 tomoyo_domain_quota_is_ok+0x2f1/0x550 security/tomoyo/util.c:1093 tomoyo_supervisor+0x2f2/0xf00 security/tomoyo/common.c:2089 tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline] tomoyo_path_number_perm+0x419/0x590 security/tomoyo/file.c:734 security_file_ioctl+0x50/0xb0 security/security.c:1495 __do_compat_sys_ioctl+0x50/0x230 fs/ioctl.c:803 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c SOFTIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __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+0x14b/0x460 fs/fcntl.c:1026 sock_wake_async+0xd2/0x160 net/socket.c:1312 sk_wake_async include/net/sock.h:2292 [inline] sk_wake_async+0x16c/0x280 include/net/sock.h:2288 tcp_rcv_state_process+0x31ce/0x4cb0 net/ipv4/tcp_input.c:6423 tcp_v4_do_rcv+0x320/0x870 net/ipv4/tcp_ipv4.c:1701 sk_backlog_rcv include/net/sock.h:1016 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2556 release_sock+0x54/0x1b0 net/core/sock.c:3080 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:1189 [inline] tcp_sendmsg_locked+0x208f/0x2e40 net/ipv4/tcp.c:1231 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 __sys_sendto+0x21c/0x320 net/socket.c:1977 __do_sys_sendto net/socket.c:1989 [inline] __se_sys_sendto net/socket.c:1985 [inline] __ia32_sys_sendto+0xdb/0x1b0 net/socket.c:1985 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline] _raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:311 fasync_remove_entry+0xb6/0x1f0 fs/fcntl.c:890 fasync_helper+0x9e/0xb0 fs/fcntl.c:993 vcs_fasync+0x57/0xb0 drivers/tty/vt/vc_screen.c:741 __fput+0x712/0x920 fs/file_table.c:277 task_work_run+0xdd/0x1a0 kernel/task_work.c:140 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:174 [inline] exit_to_user_mode_prepare+0x249/0x250 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:301 __do_fast_syscall_32+0x62/0x80 arch/x86/entry/common.c:142 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c INITIAL READ USE at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __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+0x14b/0x460 fs/fcntl.c:1026 sock_wake_async+0xd2/0x160 net/socket.c:1312 sk_wake_async include/net/sock.h:2292 [inline] sk_wake_async+0x16c/0x280 include/net/sock.h:2288 tcp_rcv_state_process+0x31ce/0x4cb0 net/ipv4/tcp_input.c:6423 tcp_v4_do_rcv+0x320/0x870 net/ipv4/tcp_ipv4.c:1701 sk_backlog_rcv include/net/sock.h:1016 [inline] __release_sock+0x134/0x3b0 net/core/sock.c:2556 release_sock+0x54/0x1b0 net/core/sock.c:3080 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:1189 [inline] tcp_sendmsg_locked+0x208f/0x2e40 net/ipv4/tcp.c:1231 tcp_sendmsg+0x2b/0x40 net/ipv4/tcp.c:1457 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 __sys_sendto+0x21c/0x320 net/socket.c:1977 __do_sys_sendto net/socket.c:1989 [inline] __se_sys_sendto net/socket.c:1985 [inline] __ia32_sys_sendto+0xdb/0x1b0 net/socket.c:1985 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c } ... key at: [] __key.0+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __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+0x14b/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+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_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c stack backtrace: CPU: 1 PID: 4076 Comm: syz-executor.4 Not tainted 5.11.0-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+0xfa/0x151 lib/dump_stack.c:120 print_bad_irq_dependency kernel/locking/lockdep.c:2460 [inline] check_irq_usage.cold+0x50d/0x744 kernel/locking/lockdep.c:2689 check_prev_add kernel/locking/lockdep.c:2940 [inline] check_prevs_add kernel/locking/lockdep.c:3059 [inline] validate_chain kernel/locking/lockdep.c:3674 [inline] __lock_acquire+0x2b2c/0x54c0 kernel/locking/lockdep.c:4900 lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x730 kernel/locking/lockdep.c:5475 __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+0x14b/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+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_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f82549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f557c5fc EFLAGS: 00000296 ORIG_RAX: 0000000000000004 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000200 RDX: 0000000000000030 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000