===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 5.2.0-rc7+ #42 Not tainted ----------------------------------------------------- syz-executor.5/4249 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: 00000000dbc6de99 (&ctx->fd_wqh){....}, at: spin_lock include/linux/spinlock.h:338 [inline] 00000000dbc6de99 (&ctx->fd_wqh){....}, at: aio_poll fs/aio.c:1752 [inline] 00000000dbc6de99 (&ctx->fd_wqh){....}, at: __io_submit_one fs/aio.c:1826 [inline] 00000000dbc6de99 (&ctx->fd_wqh){....}, at: io_submit_one+0xefa/0x2ef0 fs/aio.c:1863 and this task is already holding: 000000009509bd4b (&(&ctx->ctx_lock)->rlock){..-.}, at: spin_lock_irq include/linux/spinlock.h:363 [inline] 000000009509bd4b (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll fs/aio.c:1750 [inline] 000000009509bd4b (&(&ctx->ctx_lock)->rlock){..-.}, at: __io_submit_one fs/aio.c:1826 [inline] 000000009509bd4b (&(&ctx->ctx_lock)->rlock){..-.}, at: io_submit_one+0xeb5/0x2ef0 fs/aio.c:1863 which would create a new lock dependency: (&(&ctx->ctx_lock)->rlock){..-.} -> (&ctx->fd_wqh){....} but this new dependency connects a SOFTIRQ-irq-safe lock: (&(&ctx->ctx_lock)->rlock){..-.} ... which became SOFTIRQ-irq-safe at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:167 spin_lock_irq include/linux/spinlock.h:363 [inline] free_ioctx_users+0x2d/0x490 fs/aio.c:620 percpu_ref_put_many include/linux/percpu-refcount.h:285 [inline] percpu_ref_put include/linux/percpu-refcount.h:301 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:124 [inline] percpu_ref_switch_to_atomic_rcu+0x407/0x540 lib/percpu-refcount.c:159 __rcu_reclaim kernel/rcu/rcu.h:222 [inline] rcu_do_batch kernel/rcu/tree.c:2092 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2310 [inline] rcu_core+0xba5/0x1500 kernel/rcu/tree.c:2291 __do_softirq+0x25c/0x94c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1068 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 skb_clone+0x0/0x3d0 net/core/skbuff.c:3110 tcp_transmit_skb net/ipv4/tcp_output.c:1172 [inline] tcp_write_xmit+0xe38/0x5680 net/ipv4/tcp_output.c:2402 __tcp_push_pending_frames+0xb4/0x350 net/ipv4/tcp_output.c:2578 tcp_push+0x4c4/0x6c0 net/ipv4/tcp.c:724 tcp_sendmsg_locked+0x27bb/0x3920 net/ipv4/tcp.c:1382 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1420 inet_sendmsg+0x141/0x5d0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:665 sock_write_iter+0x27c/0x3e0 net/socket.c:994 call_write_iter include/linux/fs.h:1872 [inline] new_sync_write+0x4d3/0x770 fs/read_write.c:483 __vfs_write+0xe1/0x110 fs/read_write.c:496 vfs_write+0x20c/0x580 fs/read_write.c:558 ksys_write+0x14f/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:620 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe to a SOFTIRQ-irq-unsafe lock: (&ctx->fault_pending_wqh){+.+.} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] handle_userfault+0x58e/0x18c0 fs/userfaultfd.c:461 shmem_getpage_gfp+0x1e25/0x2500 mm/shmem.c:1786 shmem_fault+0x22d/0x760 mm/shmem.c:2048 __do_fault+0x111/0x4d0 mm/memory.c:3127 do_read_fault mm/memory.c:3537 [inline] do_fault mm/memory.c:3666 [inline] handle_pte_fault mm/memory.c:3897 [inline] __handle_mm_fault+0x2c67/0x3eb0 mm/memory.c:4021 handle_mm_fault+0x3b7/0xa90 mm/memory.c:4058 do_user_addr_fault arch/x86/mm/fault.c:1457 [inline] __do_page_fault+0x5ef/0xda0 arch/x86/mm/fault.c:1523 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1554 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1156 copy_user_generic_unrolled+0x86/0xc0 arch/x86/lib/copy_user_64.S:89 copy_from_user include/linux/uaccess.h:144 [inline] sctp_getsockopt_local_addrs net/sctp/socket.c:6270 [inline] sctp_getsockopt net/sctp/socket.c:7851 [inline] sctp_getsockopt+0x2206/0x6720 net/sctp/socket.c:7786 sock_common_getsockopt+0x94/0xd0 net/core/sock.c:3085 __sys_getsockopt+0x15f/0x240 net/socket.c:2109 __do_sys_getsockopt net/socket.c:2120 [inline] __se_sys_getsockopt net/socket.c:2117 [inline] __x64_sys_getsockopt+0xbe/0x150 net/socket.c:2117 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: &(&ctx->ctx_lock)->rlock --> &ctx->fd_wqh --> &ctx->fault_pending_wqh Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ctx->fault_pending_wqh); local_irq_disable(); lock(&(&ctx->ctx_lock)->rlock); lock(&ctx->fd_wqh); lock(&(&ctx->ctx_lock)->rlock); *** DEADLOCK *** 1 lock held by syz-executor.5/4249: #0: 000000009509bd4b (&(&ctx->ctx_lock)->rlock){..-.}, at: spin_lock_irq include/linux/spinlock.h:363 [inline] #0: 000000009509bd4b (&(&ctx->ctx_lock)->rlock){..-.}, at: aio_poll fs/aio.c:1750 [inline] #0: 000000009509bd4b (&(&ctx->ctx_lock)->rlock){..-.}, at: __io_submit_one fs/aio.c:1826 [inline] #0: 000000009509bd4b (&(&ctx->ctx_lock)->rlock){..-.}, at: io_submit_one+0xeb5/0x2ef0 fs/aio.c:1863 the dependencies between SOFTIRQ-irq-safe lock and the holding lock: -> (&(&ctx->ctx_lock)->rlock){..-.} { IN-SOFTIRQ-W at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:167 spin_lock_irq include/linux/spinlock.h:363 [inline] free_ioctx_users+0x2d/0x490 fs/aio.c:620 percpu_ref_put_many include/linux/percpu-refcount.h:285 [inline] percpu_ref_put include/linux/percpu-refcount.h:301 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:124 [inline] percpu_ref_switch_to_atomic_rcu+0x407/0x540 lib/percpu-refcount.c:159 __rcu_reclaim kernel/rcu/rcu.h:222 [inline] rcu_do_batch kernel/rcu/tree.c:2092 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2310 [inline] rcu_core+0xba5/0x1500 kernel/rcu/tree.c:2291 __do_softirq+0x25c/0x94c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1068 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 skb_clone+0x0/0x3d0 net/core/skbuff.c:3110 tcp_transmit_skb net/ipv4/tcp_output.c:1172 [inline] tcp_write_xmit+0xe38/0x5680 net/ipv4/tcp_output.c:2402 __tcp_push_pending_frames+0xb4/0x350 net/ipv4/tcp_output.c:2578 tcp_push+0x4c4/0x6c0 net/ipv4/tcp.c:724 tcp_sendmsg_locked+0x27bb/0x3920 net/ipv4/tcp.c:1382 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1420 inet_sendmsg+0x141/0x5d0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:665 sock_write_iter+0x27c/0x3e0 net/socket.c:994 call_write_iter include/linux/fs.h:1872 [inline] new_sync_write+0x4d3/0x770 fs/read_write.c:483 __vfs_write+0xe1/0x110 fs/read_write.c:496 vfs_write+0x20c/0x580 fs/read_write.c:558 ksys_write+0x14f/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:620 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe INITIAL USE at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x60/0x80 kernel/locking/spinlock.c:167 spin_lock_irq include/linux/spinlock.h:363 [inline] free_ioctx_users+0x2d/0x490 fs/aio.c:620 percpu_ref_put_many include/linux/percpu-refcount.h:285 [inline] percpu_ref_put include/linux/percpu-refcount.h:301 [inline] percpu_ref_call_confirm_rcu lib/percpu-refcount.c:124 [inline] percpu_ref_switch_to_atomic_rcu+0x407/0x540 lib/percpu-refcount.c:159 __rcu_reclaim kernel/rcu/rcu.h:222 [inline] rcu_do_batch kernel/rcu/tree.c:2092 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2310 [inline] rcu_core+0xba5/0x1500 kernel/rcu/tree.c:2291 __do_softirq+0x25c/0x94c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1068 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:806 skb_clone+0x0/0x3d0 net/core/skbuff.c:3110 tcp_transmit_skb net/ipv4/tcp_output.c:1172 [inline] tcp_write_xmit+0xe38/0x5680 net/ipv4/tcp_output.c:2402 __tcp_push_pending_frames+0xb4/0x350 net/ipv4/tcp_output.c:2578 tcp_push+0x4c4/0x6c0 net/ipv4/tcp.c:724 tcp_sendmsg_locked+0x27bb/0x3920 net/ipv4/tcp.c:1382 tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1420 inet_sendmsg+0x141/0x5d0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:665 sock_write_iter+0x27c/0x3e0 net/socket.c:994 call_write_iter include/linux/fs.h:1872 [inline] new_sync_write+0x4d3/0x770 fs/read_write.c:483 __vfs_write+0xe1/0x110 fs/read_write.c:496 vfs_write+0x20c/0x580 fs/read_write.c:558 ksys_write+0x14f/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:620 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe } ... key at: [] __key.53436+0x0/0x40 ... acquired at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] aio_poll fs/aio.c:1752 [inline] __io_submit_one fs/aio.c:1826 [inline] io_submit_one+0xefa/0x2ef0 fs/aio.c:1863 __do_sys_io_submit fs/aio.c:1922 [inline] __se_sys_io_submit fs/aio.c:1892 [inline] __x64_sys_io_submit+0x1bd/0x570 fs/aio.c:1892 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: -> (&ctx->fault_pending_wqh){+.+.} { HARDIRQ-ON-W at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] handle_userfault+0x58e/0x18c0 fs/userfaultfd.c:461 shmem_getpage_gfp+0x1e25/0x2500 mm/shmem.c:1786 shmem_fault+0x22d/0x760 mm/shmem.c:2048 __do_fault+0x111/0x4d0 mm/memory.c:3127 do_read_fault mm/memory.c:3537 [inline] do_fault mm/memory.c:3666 [inline] handle_pte_fault mm/memory.c:3897 [inline] __handle_mm_fault+0x2c67/0x3eb0 mm/memory.c:4021 handle_mm_fault+0x3b7/0xa90 mm/memory.c:4058 do_user_addr_fault arch/x86/mm/fault.c:1457 [inline] __do_page_fault+0x5ef/0xda0 arch/x86/mm/fault.c:1523 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1554 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1156 copy_user_generic_unrolled+0x86/0xc0 arch/x86/lib/copy_user_64.S:89 copy_from_user include/linux/uaccess.h:144 [inline] sctp_getsockopt_local_addrs net/sctp/socket.c:6270 [inline] sctp_getsockopt net/sctp/socket.c:7851 [inline] sctp_getsockopt+0x2206/0x6720 net/sctp/socket.c:7786 sock_common_getsockopt+0x94/0xd0 net/core/sock.c:3085 __sys_getsockopt+0x15f/0x240 net/socket.c:2109 __do_sys_getsockopt net/socket.c:2120 [inline] __se_sys_getsockopt net/socket.c:2117 [inline] __x64_sys_getsockopt+0xbe/0x150 net/socket.c:2117 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe SOFTIRQ-ON-W at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] handle_userfault+0x58e/0x18c0 fs/userfaultfd.c:461 shmem_getpage_gfp+0x1e25/0x2500 mm/shmem.c:1786 shmem_fault+0x22d/0x760 mm/shmem.c:2048 __do_fault+0x111/0x4d0 mm/memory.c:3127 do_read_fault mm/memory.c:3537 [inline] do_fault mm/memory.c:3666 [inline] handle_pte_fault mm/memory.c:3897 [inline] __handle_mm_fault+0x2c67/0x3eb0 mm/memory.c:4021 handle_mm_fault+0x3b7/0xa90 mm/memory.c:4058 do_user_addr_fault arch/x86/mm/fault.c:1457 [inline] __do_page_fault+0x5ef/0xda0 arch/x86/mm/fault.c:1523 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1554 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1156 copy_user_generic_unrolled+0x86/0xc0 arch/x86/lib/copy_user_64.S:89 copy_from_user include/linux/uaccess.h:144 [inline] sctp_getsockopt_local_addrs net/sctp/socket.c:6270 [inline] sctp_getsockopt net/sctp/socket.c:7851 [inline] sctp_getsockopt+0x2206/0x6720 net/sctp/socket.c:7786 sock_common_getsockopt+0x94/0xd0 net/core/sock.c:3085 __sys_getsockopt+0x15f/0x240 net/socket.c:2109 __do_sys_getsockopt net/socket.c:2120 [inline] __se_sys_getsockopt net/socket.c:2117 [inline] __x64_sys_getsockopt+0xbe/0x150 net/socket.c:2117 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe INITIAL USE at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] handle_userfault+0x58e/0x18c0 fs/userfaultfd.c:461 shmem_getpage_gfp+0x1e25/0x2500 mm/shmem.c:1786 shmem_fault+0x22d/0x760 mm/shmem.c:2048 __do_fault+0x111/0x4d0 mm/memory.c:3127 do_read_fault mm/memory.c:3537 [inline] do_fault mm/memory.c:3666 [inline] handle_pte_fault mm/memory.c:3897 [inline] __handle_mm_fault+0x2c67/0x3eb0 mm/memory.c:4021 handle_mm_fault+0x3b7/0xa90 mm/memory.c:4058 do_user_addr_fault arch/x86/mm/fault.c:1457 [inline] __do_page_fault+0x5ef/0xda0 arch/x86/mm/fault.c:1523 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1554 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1156 copy_user_generic_unrolled+0x86/0xc0 arch/x86/lib/copy_user_64.S:89 copy_from_user include/linux/uaccess.h:144 [inline] sctp_getsockopt_local_addrs net/sctp/socket.c:6270 [inline] sctp_getsockopt net/sctp/socket.c:7851 [inline] sctp_getsockopt+0x2206/0x6720 net/sctp/socket.c:7786 sock_common_getsockopt+0x94/0xd0 net/core/sock.c:3085 __sys_getsockopt+0x15f/0x240 net/socket.c:2109 __do_sys_getsockopt net/socket.c:2120 [inline] __se_sys_getsockopt net/socket.c:2117 [inline] __x64_sys_getsockopt+0xbe/0x150 net/socket.c:2117 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe } ... key at: [] __key.46109+0x0/0x40 ... acquired at: __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] userfaultfd_ctx_read fs/userfaultfd.c:1045 [inline] userfaultfd_read+0x540/0x1940 fs/userfaultfd.c:1203 do_loop_readv_writev fs/read_write.c:714 [inline] do_loop_readv_writev fs/read_write.c:701 [inline] do_iter_read+0x4a4/0x660 fs/read_write.c:935 vfs_readv+0xf0/0x160 fs/read_write.c:997 do_readv+0x15b/0x330 fs/read_write.c:1034 __do_sys_readv fs/read_write.c:1125 [inline] __se_sys_readv fs/read_write.c:1122 [inline] __x64_sys_readv+0x75/0xb0 fs/read_write.c:1122 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> (&ctx->fd_wqh){....} { INITIAL USE at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x95/0xcd kernel/locking/spinlock.c:159 __wake_up_common_lock+0xc7/0x190 kernel/sched/wait.c:121 __wake_up+0xe/0x10 kernel/sched/wait.c:146 handle_userfault+0x925/0x18c0 fs/userfaultfd.c:487 shmem_getpage_gfp+0x1e25/0x2500 mm/shmem.c:1786 shmem_fault+0x22d/0x760 mm/shmem.c:2048 __do_fault+0x111/0x4d0 mm/memory.c:3127 do_read_fault mm/memory.c:3537 [inline] do_fault mm/memory.c:3666 [inline] handle_pte_fault mm/memory.c:3897 [inline] __handle_mm_fault+0x2c67/0x3eb0 mm/memory.c:4021 handle_mm_fault+0x3b7/0xa90 mm/memory.c:4058 do_user_addr_fault arch/x86/mm/fault.c:1457 [inline] __do_page_fault+0x5ef/0xda0 arch/x86/mm/fault.c:1523 do_page_fault+0x71/0x57d arch/x86/mm/fault.c:1554 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1156 copy_user_generic_unrolled+0x86/0xc0 arch/x86/lib/copy_user_64.S:89 copy_from_user include/linux/uaccess.h:144 [inline] sctp_getsockopt_local_addrs net/sctp/socket.c:6270 [inline] sctp_getsockopt net/sctp/socket.c:7851 [inline] sctp_getsockopt+0x2206/0x6720 net/sctp/socket.c:7786 sock_common_getsockopt+0x94/0xd0 net/core/sock.c:3085 __sys_getsockopt+0x15f/0x240 net/socket.c:2109 __do_sys_getsockopt net/socket.c:2120 [inline] __se_sys_getsockopt net/socket.c:2117 [inline] __x64_sys_getsockopt+0xbe/0x150 net/socket.c:2117 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe } ... key at: [] __key.46112+0x0/0x40 ... acquired at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] aio_poll fs/aio.c:1752 [inline] __io_submit_one fs/aio.c:1826 [inline] io_submit_one+0xefa/0x2ef0 fs/aio.c:1863 __do_sys_io_submit fs/aio.c:1922 [inline] __se_sys_io_submit fs/aio.c:1892 [inline] __x64_sys_io_submit+0x1bd/0x570 fs/aio.c:1892 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe stack backtrace: CPU: 1 PID: 4249 Comm: syz-executor.5 Not tainted 5.2.0-rc7+ #42 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 print_bad_irq_dependency kernel/locking/lockdep.c:1920 [inline] check_irq_usage.cold+0x711/0xba0 kernel/locking/lockdep.c:2114 check_prev_add kernel/locking/lockdep.c:2315 [inline] check_prevs_add kernel/locking/lockdep.c:2418 [inline] validate_chain kernel/locking/lockdep.c:2800 [inline] __lock_acquire+0x2469/0x5490 kernel/locking/lockdep.c:3793 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:4303 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] aio_poll fs/aio.c:1752 [inline] __io_submit_one fs/aio.c:1826 [inline] io_submit_one+0xefa/0x2ef0 fs/aio.c:1863 __do_sys_io_submit fs/aio.c:1922 [inline] __se_sys_io_submit fs/aio.c:1892 [inline] __x64_sys_io_submit+0x1bd/0x570 fs/aio.c:1892 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4597c9 Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fac9606bc78 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004597c9 RDX: 0000000020000000 RSI: 0000000000000001 RDI: 00007fac9604a000 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac9606c6d4 R13: 00000000004c0b97 R14: 00000000004d3908 R15: 00000000ffffffff