===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 5.10.0-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor.4/25104 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: ffff888012e4f538 (&f->f_owner.lock){.+.?}-{2:2}, at: send_sigio+0x24/0x350 fs/fcntl.c:786 and this task is already holding: ffff88802a8a3600 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1002 [inline] ffff88802a8a3600 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1023 [inline] ffff88802a8a3600 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x14b/0x460 fs/fcntl.c:1016 which would create a new lock dependency: (&new->fa_lock){....}-{2:2} -> (&f->f_owner.lock){.+.?}-{2:2} but this new dependency connects a SOFTIRQ-irq-safe lock: (fasync_lock){+.+.}-{2:2} ... which became SOFTIRQ-irq-safe at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __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] fasync_remove_entry+0x2e/0x1f0 fs/fcntl.c:875 fasync_helper+0x9e/0xb0 fs/fcntl.c:983 __tty_fasync drivers/tty/tty_io.c:2128 [inline] tty_release+0x16d/0x1210 drivers/tty/tty_io.c:1666 __fput+0x285/0x920 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:168 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+0x1f0/0x200 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302 entry_SYSCALL_64_after_hwframe+0x44/0xa9 to a SOFTIRQ-irq-unsafe lock: (&f->f_owner.lock){.+.?}-{2:2} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x36/0x70 kernel/locking/spinlock.c:223 send_sigurg+0x1e/0xab0 fs/fcntl.c:824 sk_send_sigurg+0x76/0x300 net/core/sock.c:2938 tcp_check_urg.isra.0+0x1f4/0x710 net/ipv4/tcp_input.c:5508 tcp_urg net/ipv4/tcp_input.c:5549 [inline] tcp_rcv_established+0x106c/0x1eb0 net/ipv4/tcp_input.c:5883 tcp_v4_do_rcv+0x5d1/0x870 net/ipv4/tcp_ipv4.c:1676 tcp_v4_rcv+0x2d10/0x3750 net/ipv4/tcp_ipv4.c:2058 ip_protocol_deliver_rcu+0x5c/0x8a0 net/ipv4/ip_input.c:204 ip_local_deliver_finish+0x20a/0x370 net/ipv4/ip_input.c:231 NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:252 dst_input include/net/dst.h:447 [inline] ip_rcv_finish+0x1da/0x2f0 net/ipv4/ip_input.c:428 NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:539 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5305 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5419 process_backlog+0x232/0x6c0 net/core/dev.c:6309 napi_poll net/core/dev.c:6787 [inline] net_rx_action+0x461/0xe10 net/core/dev.c:6870 __do_softirq+0x2a0/0x9f6 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x132/0x200 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628 native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] arch_local_save_flags arch/x86/include/asm/irqflags.h:79 [inline] arch_local_irq_save arch/x86/include/asm/irqflags.h:120 [inline] rmqueue_pcplist mm/page_alloc.c:3439 [inline] rmqueue mm/page_alloc.c:3470 [inline] get_page_from_freelist+0xefe/0x4110 mm/page_alloc.c:3935 __alloc_pages_nodemask+0x2d6/0x730 mm/page_alloc.c:4988 alloc_pages_current+0x191/0x2a0 mm/mempolicy.c:2267 alloc_pages include/linux/gfp.h:547 [inline] __vmalloc_area_node+0x3de/0x7b0 mm/vmalloc.c:2508 __vmalloc_node_range mm/vmalloc.c:2574 [inline] __vmalloc_node mm/vmalloc.c:2617 [inline] vzalloc+0x116/0x1a0 mm/vmalloc.c:2670 xt_counters_alloc+0x4c/0x70 net/netfilter/x_tables.c:1348 __do_replace+0x9a/0x8a0 net/ipv4/netfilter/ip_tables.c:1048 do_replace net/ipv4/netfilter/ip_tables.c:1139 [inline] do_ipt_set_ctl+0x8e0/0xb50 net/ipv4/netfilter/ip_tables.c:1627 nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0x3c3/0x39f0 net/ipv4/ip_sockglue.c:1435 udp_setsockopt+0x76/0xc0 net/ipv4/udp.c:2713 ipv6_setsockopt+0x161/0x180 net/ipv6/ipv6_sockglue.c:998 tcp_setsockopt+0x136/0x2590 net/ipv4/tcp.c:3597 __sys_setsockopt+0x2db/0x610 net/socket.c:2115 __do_sys_setsockopt net/socket.c:2126 [inline] __se_sys_setsockopt net/socket.c:2123 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2123 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 other info that might help us debug this: Chain exists of: fasync_lock --> &new->fa_lock --> &f->f_owner.lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&f->f_owner.lock); local_irq_disable(); lock(fasync_lock); lock(&new->fa_lock); lock(fasync_lock); *** DEADLOCK *** 8 locks held by syz-executor.4/25104: #0: ffff88801d48c110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_write+0x1d3/0x760 drivers/input/evdev.c:513 #1: ffff88801d498230 (&dev->event_lock){-...}-{2:2}, at: input_inject_event+0xa6/0x310 drivers/input/input.c:466 #2: ffffffff8b33a060 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:53 [inline] #2: ffffffff8b33a060 (rcu_read_lock){....}-{1:2}, at: is_event_supported drivers/input/input.c:50 [inline] #2: ffffffff8b33a060 (rcu_read_lock){....}-{1:2}, at: input_inject_event+0x92/0x310 drivers/input/input.c:465 #3: ffffffff8b33a060 (rcu_read_lock){....}-{1:2}, at: input_pass_values.part.0+0x0/0x700 drivers/input/input.c:833 #4: ffffffff8b33a060 (rcu_read_lock){....}-{1:2}, at: evdev_events+0x59/0x3f0 drivers/input/evdev.c:296 #5: ffff88806ea84028 (&client->buffer_lock){....}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] #5: ffff88806ea84028 (&client->buffer_lock){....}-{2:2}, at: evdev_pass_values.part.0+0xf6/0x970 drivers/input/evdev.c:261 #6: ffffffff8b33a060 (rcu_read_lock){....}-{1:2}, at: kill_fasync+0x3d/0x460 fs/fcntl.c:1021 #7: ffff88802a8a3600 (&new->fa_lock){....}-{2:2}, at: kill_fasync_rcu fs/fcntl.c:1002 [inline] #7: ffff88802a8a3600 (&new->fa_lock){....}-{2:2}, at: kill_fasync fs/fcntl.c:1023 [inline] #7: ffff88802a8a3600 (&new->fa_lock){....}-{2:2}, at: kill_fasync+0x14b/0x460 fs/fcntl.c:1016 the dependencies between SOFTIRQ-irq-safe lock and the holding lock: -> (fasync_lock){+.+.}-{2:2} { HARDIRQ-ON-W at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __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] fasync_remove_entry+0x2e/0x1f0 fs/fcntl.c:875 fasync_helper+0x9e/0xb0 fs/fcntl.c:983 __tty_fasync drivers/tty/tty_io.c:2128 [inline] tty_release+0x16d/0x1210 drivers/tty/tty_io.c:1666 __fput+0x285/0x920 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:168 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+0x1f0/0x200 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302 entry_SYSCALL_64_after_hwframe+0x44/0xa9 SOFTIRQ-ON-W at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __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] fasync_remove_entry+0x2e/0x1f0 fs/fcntl.c:875 fasync_helper+0x9e/0xb0 fs/fcntl.c:983 __tty_fasync drivers/tty/tty_io.c:2128 [inline] tty_release+0x16d/0x1210 drivers/tty/tty_io.c:1666 __fput+0x285/0x920 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:168 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+0x1f0/0x200 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302 entry_SYSCALL_64_after_hwframe+0x44/0xa9 INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_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] fasync_remove_entry+0x2e/0x1f0 fs/fcntl.c:875 fasync_helper+0x9e/0xb0 fs/fcntl.c:983 __tty_fasync drivers/tty/tty_io.c:2128 [inline] tty_release+0x16d/0x1210 drivers/tty/tty_io.c:1666 __fput+0x285/0x920 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:168 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+0x1f0/0x200 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302 entry_SYSCALL_64_after_hwframe+0x44/0xa9 } ... key at: [] fasync_lock+0x18/0x8e0 ... acquired at: __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:880 fasync_helper+0x9e/0xb0 fs/fcntl.c:983 lease_modify fs/locks.c:1522 [inline] lease_modify+0x28a/0x370 fs/locks.c:1509 locks_remove_lease fs/locks.c:2770 [inline] locks_remove_file+0x2b2/0x560 fs/locks.c:2795 __fput+0x1b8/0x920 fs/file_table.c:273 task_work_run+0xdd/0x190 kernel/task_work.c:168 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+0x1f0/0x200 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302 entry_SYSCALL_64_after_hwframe+0x44/0xa9 -> (&new->fa_lock){....}-{2:2} { INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline] _raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:311 fasync_remove_entry+0xb6/0x1f0 fs/fcntl.c:880 fasync_helper+0x9e/0xb0 fs/fcntl.c:983 lease_modify fs/locks.c:1522 [inline] lease_modify+0x28a/0x370 fs/locks.c:1509 locks_remove_lease fs/locks.c:2770 [inline] locks_remove_file+0x2b2/0x560 fs/locks.c:2795 __fput+0x1b8/0x920 fs/file_table.c:273 task_work_run+0xdd/0x190 kernel/task_work.c:168 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+0x1f0/0x200 kernel/entry/common.c:201 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302 entry_SYSCALL_64_after_hwframe+0x44/0xa9 INITIAL READ USE at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 kill_fasync_rcu fs/fcntl.c:1002 [inline] kill_fasync fs/fcntl.c:1023 [inline] kill_fasync+0x14b/0x460 fs/fcntl.c:1016 __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+0x324/0x1400 drivers/input/input.c:399 input_inject_event+0x2f5/0x310 drivers/input/input.c:471 evdev_write+0x430/0x760 drivers/input/evdev.c:530 vfs_write+0x28e/0xa30 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 } ... key at: [] __key.0+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 send_sigio+0x24/0x350 fs/fcntl.c:786 kill_fasync_rcu fs/fcntl.c:1009 [inline] kill_fasync fs/fcntl.c:1023 [inline] kill_fasync+0x205/0x460 fs/fcntl.c:1016 __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+0x324/0x1400 drivers/input/input.c:399 input_inject_event+0x2f5/0x310 drivers/input/input.c:471 evdev_write+0x430/0x760 drivers/input/evdev.c:530 vfs_write+0x28e/0xa30 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: -> (&f->f_owner.lock){.+.?}-{2:2} { HARDIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 f_getown_ex fs/fcntl.c:206 [inline] do_fcntl+0x8ab/0x1070 fs/fcntl.c:387 __do_sys_fcntl fs/fcntl.c:463 [inline] __se_sys_fcntl fs/fcntl.c:448 [inline] __x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:448 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 IN-SOFTIRQ-R at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x36/0x70 kernel/locking/spinlock.c:223 send_sigurg+0x1e/0xab0 fs/fcntl.c:824 sk_send_sigurg+0x76/0x300 net/core/sock.c:2938 tcp_check_urg.isra.0+0x1f4/0x710 net/ipv4/tcp_input.c:5508 tcp_urg net/ipv4/tcp_input.c:5549 [inline] tcp_rcv_established+0x106c/0x1eb0 net/ipv4/tcp_input.c:5883 tcp_v4_do_rcv+0x5d1/0x870 net/ipv4/tcp_ipv4.c:1676 tcp_v4_rcv+0x2d10/0x3750 net/ipv4/tcp_ipv4.c:2058 ip_protocol_deliver_rcu+0x5c/0x8a0 net/ipv4/ip_input.c:204 ip_local_deliver_finish+0x20a/0x370 net/ipv4/ip_input.c:231 NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ip_local_deliver+0x1b3/0x200 net/ipv4/ip_input.c:252 dst_input include/net/dst.h:447 [inline] ip_rcv_finish+0x1da/0x2f0 net/ipv4/ip_input.c:428 NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ip_rcv+0xaa/0xd0 net/ipv4/ip_input.c:539 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5305 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5419 process_backlog+0x232/0x6c0 net/core/dev.c:6309 napi_poll net/core/dev.c:6787 [inline] net_rx_action+0x461/0xe10 net/core/dev.c:6870 __do_softirq+0x2a0/0x9f6 kernel/softirq.c:298 asm_call_irq_on_stack+0xf/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0xaa/0xd0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x132/0x200 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x4d/0x100 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:628 native_save_fl arch/x86/include/asm/irqflags.h:29 [inline] arch_local_save_flags arch/x86/include/asm/irqflags.h:79 [inline] arch_local_irq_save arch/x86/include/asm/irqflags.h:120 [inline] rmqueue_pcplist mm/page_alloc.c:3439 [inline] rmqueue mm/page_alloc.c:3470 [inline] get_page_from_freelist+0xefe/0x4110 mm/page_alloc.c:3935 __alloc_pages_nodemask+0x2d6/0x730 mm/page_alloc.c:4988 alloc_pages_current+0x191/0x2a0 mm/mempolicy.c:2267 alloc_pages include/linux/gfp.h:547 [inline] __vmalloc_area_node+0x3de/0x7b0 mm/vmalloc.c:2508 __vmalloc_node_range mm/vmalloc.c:2574 [inline] __vmalloc_node mm/vmalloc.c:2617 [inline] vzalloc+0x116/0x1a0 mm/vmalloc.c:2670 xt_counters_alloc+0x4c/0x70 net/netfilter/x_tables.c:1348 __do_replace+0x9a/0x8a0 net/ipv4/netfilter/ip_tables.c:1048 do_replace net/ipv4/netfilter/ip_tables.c:1139 [inline] do_ipt_set_ctl+0x8e0/0xb50 net/ipv4/netfilter/ip_tables.c:1627 nf_setsockopt+0x83/0xe0 net/netfilter/nf_sockopt.c:101 ip_setsockopt+0x3c3/0x39f0 net/ipv4/ip_sockglue.c:1435 udp_setsockopt+0x76/0xc0 net/ipv4/udp.c:2713 ipv6_setsockopt+0x161/0x180 net/ipv6/ipv6_sockglue.c:998 tcp_setsockopt+0x136/0x2590 net/ipv4/tcp.c:3597 __sys_setsockopt+0x2db/0x610 net/socket.c:2115 __do_sys_setsockopt net/socket.c:2126 [inline] __se_sys_setsockopt net/socket.c:2123 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2123 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 SOFTIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 f_getown_ex fs/fcntl.c:206 [inline] do_fcntl+0x8ab/0x1070 fs/fcntl.c:387 __do_sys_fcntl fs/fcntl.c:463 [inline] __se_sys_fcntl fs/fcntl.c:448 [inline] __x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:448 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline] _raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:311 f_modown+0x2a/0x390 fs/fcntl.c:90 generic_add_lease fs/locks.c:1942 [inline] generic_setlease+0x10b7/0x1a20 fs/locks.c:2021 vfs_setlease+0xfd/0x120 fs/locks.c:2111 do_fcntl_add_lease fs/locks.c:2132 [inline] fcntl_setlease+0x134/0x2c0 fs/locks.c:2154 do_fcntl+0x2b6/0x1070 fs/fcntl.c:410 __do_sys_fcntl fs/fcntl.c:463 [inline] __se_sys_fcntl fs/fcntl.c:448 [inline] __x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:448 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 INITIAL READ USE at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 f_getown_ex fs/fcntl.c:206 [inline] do_fcntl+0x8ab/0x1070 fs/fcntl.c:387 __do_sys_fcntl fs/fcntl.c:463 [inline] __se_sys_fcntl fs/fcntl.c:448 [inline] __x64_sys_fcntl+0x165/0x1e0 fs/fcntl.c:448 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 } ... key at: [] __key.5+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 send_sigio+0x24/0x350 fs/fcntl.c:786 kill_fasync_rcu fs/fcntl.c:1009 [inline] kill_fasync fs/fcntl.c:1023 [inline] kill_fasync+0x205/0x460 fs/fcntl.c:1016 __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+0x324/0x1400 drivers/input/input.c:399 input_inject_event+0x2f5/0x310 drivers/input/input.c:471 evdev_write+0x430/0x760 drivers/input/evdev.c:530 vfs_write+0x28e/0xa30 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 stack backtrace: CPU: 0 PID: 25104 Comm: syz-executor.4 Not tainted 5.10.0-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+0x107/0x163 lib/dump_stack.c:120 print_bad_irq_dependency kernel/locking/lockdep.c:2452 [inline] check_irq_usage.cold+0x4f5/0x6c8 kernel/locking/lockdep.c:2681 check_prev_add kernel/locking/lockdep.c:2872 [inline] check_prevs_add kernel/locking/lockdep.c:2993 [inline] validate_chain kernel/locking/lockdep.c:3608 [inline] __lock_acquire+0x2af6/0x5500 kernel/locking/lockdep.c:4832 lock_acquire kernel/locking/lockdep.c:5437 [inline] lock_acquire+0x29d/0x740 kernel/locking/lockdep.c:5402 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:223 send_sigio+0x24/0x350 fs/fcntl.c:786 kill_fasync_rcu fs/fcntl.c:1009 [inline] kill_fasync fs/fcntl.c:1023 [inline] kill_fasync+0x205/0x460 fs/fcntl.c:1016 __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+0x324/0x1400 drivers/input/input.c:399 input_inject_event+0x2f5/0x310 drivers/input/input.c:471 evdev_write+0x430/0x760 drivers/input/evdev.c:530 vfs_write+0x28e/0xa30 fs/read_write.c:603 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e159 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fc7ed40fc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e159 RDX: 0000000000035000 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00000000016afb7f R14: 00007fc7ed4109c0 R15: 000000000119bf8c