===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 5.15.154-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor.2/4755 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: ffffffff8c60a058 (tasklist_lock){.+.+}-{2:2}, at: send_sigurg+0xc8/0x380 fs/fcntl.c:851 and this task is already holding: ffff8880165e0b38 (&f->f_owner.lock){....}-{2:2}, at: send_sigurg+0x25/0x380 fs/fcntl.c:835 which would create a new lock dependency: (&f->f_owner.lock){....}-{2:2} -> (tasklist_lock){.+.+}-{2:2} but this new dependency connects a SOFTIRQ-irq-safe lock: (&client->buffer_lock){..-.}-{2:2} ... which became SOFTIRQ-irq-safe at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:363 [inline] evdev_pass_values+0xe7/0xb60 drivers/input/evdev.c:261 evdev_events+0x198/0x2c0 drivers/input/evdev.c:306 input_to_handler drivers/input/input.c:126 [inline] input_pass_values+0x873/0x1200 drivers/input/input.c:156 input_handle_event+0xd3d/0x1600 drivers/input/input.c:426 input_event+0x9d/0xd0 drivers/input/input.c:457 hidinput_hid_event+0x1137/0x18e0 drivers/hid/hid-input.c:1467 hid_process_event+0x433/0x580 drivers/hid/hid-core.c:1539 hid_input_field drivers/hid/hid-core.c:1583 [inline] hid_report_raw_event+0xe9e/0x1640 drivers/hid/hid-core.c:1807 hid_input_report+0x419/0x4d0 drivers/hid/hid-core.c:1874 hid_irq_in+0x45c/0x690 drivers/hid/usbhid/hid-core.c:284 __usb_hcd_giveback_urb+0x371/0x530 drivers/usb/core/hcd.c:1674 dummy_timer+0x8ad/0x3200 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451 expire_timers kernel/time/timer.c:1496 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1767 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780 __do_softirq+0x3b3/0x93a kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 preempt_latency_start kernel/sched/core.c:5473 [inline] preempt_count_add+0xb3/0x180 kernel/sched/core.c:5496 delay_tsc+0x62/0xd0 arch/x86/lib/delay.c:79 try_check_zero+0x2f2/0x360 kernel/rcu/srcutree.c:702 srcu_advance_state kernel/rcu/srcutree.c:1227 [inline] process_srcu+0x1aa/0xc20 kernel/rcu/srcutree.c:1325 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 to a SOFTIRQ-irq-unsafe lock: (tasklist_lock){.+.+}-{2:2} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228 do_wait+0x2a7/0xaf0 kernel/exit.c:1576 kernel_wait+0xe5/0x230 kernel/exit.c:1766 call_usermodehelper_exec_sync kernel/umh.c:139 [inline] call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:166 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 other info that might help us debug this: Chain exists of: &client->buffer_lock --> &f->f_owner.lock --> tasklist_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(tasklist_lock); local_irq_disable(); lock(&client->buffer_lock); lock(&f->f_owner.lock); lock(&client->buffer_lock); *** DEADLOCK *** 2 locks held by syz-executor.2/4755: #0: ffff88801eb45a60 (sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1668 [inline] #0: ffff88801eb45a60 (sk_lock-AF_INET6){+.+.}-{0:0}, at: tcp_sendmsg+0x1e/0x40 net/ipv4/tcp.c:1455 #1: ffff8880165e0b38 (&f->f_owner.lock){....}-{2:2}, at: send_sigurg+0x25/0x380 fs/fcntl.c:835 the dependencies between SOFTIRQ-irq-safe lock and the holding lock: -> (&client->buffer_lock){..-.}-{2:2} { IN-SOFTIRQ-W at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:363 [inline] evdev_pass_values+0xe7/0xb60 drivers/input/evdev.c:261 evdev_events+0x198/0x2c0 drivers/input/evdev.c:306 input_to_handler drivers/input/input.c:126 [inline] input_pass_values+0x873/0x1200 drivers/input/input.c:156 input_handle_event+0xd3d/0x1600 drivers/input/input.c:426 input_event+0x9d/0xd0 drivers/input/input.c:457 hidinput_hid_event+0x1137/0x18e0 drivers/hid/hid-input.c:1467 hid_process_event+0x433/0x580 drivers/hid/hid-core.c:1539 hid_input_field drivers/hid/hid-core.c:1583 [inline] hid_report_raw_event+0xe9e/0x1640 drivers/hid/hid-core.c:1807 hid_input_report+0x419/0x4d0 drivers/hid/hid-core.c:1874 hid_irq_in+0x45c/0x690 drivers/hid/usbhid/hid-core.c:284 __usb_hcd_giveback_urb+0x371/0x530 drivers/usb/core/hcd.c:1674 dummy_timer+0x8ad/0x3200 drivers/usb/gadget/udc/dummy_hcd.c:1987 call_timer_fn+0x16d/0x560 kernel/time/timer.c:1451 expire_timers kernel/time/timer.c:1496 [inline] __run_timers+0x67c/0x890 kernel/time/timer.c:1767 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1780 __do_softirq+0x3b3/0x93a kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x155/0x240 kernel/softirq.c:637 irq_exit_rcu+0x5/0x20 kernel/softirq.c:649 sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638 preempt_latency_start kernel/sched/core.c:5473 [inline] preempt_count_add+0xb3/0x180 kernel/sched/core.c:5496 delay_tsc+0x62/0xd0 arch/x86/lib/delay.c:79 try_check_zero+0x2f2/0x360 kernel/rcu/srcutree.c:702 srcu_advance_state kernel/rcu/srcutree.c:1227 [inline] process_srcu+0x1aa/0xc20 kernel/rcu/srcutree.c:1325 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 INITIAL USE at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:363 [inline] evdev_pass_values+0xe7/0xb60 drivers/input/evdev.c:261 evdev_events+0x198/0x2c0 drivers/input/evdev.c:306 input_to_handler drivers/input/input.c:126 [inline] input_pass_values+0x873/0x1200 drivers/input/input.c:156 input_handle_event+0xc9b/0x1600 drivers/input/input.c:415 input_inject_event+0x1fc/0x300 drivers/input/input.c:487 evdev_write+0x668/0x7c0 drivers/input/evdev.c:530 vfs_write+0x30c/0xe50 fs/read_write.c:592 ksys_write+0x1a2/0x2c0 fs/read_write.c:647 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 } ... key at: [] evdev_open.__key.23+0x0/0x20 -> (&new->fa_lock){....}-{2:2} { INITIAL USE at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline] _raw_write_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:316 fasync_remove_entry+0xfb/0x1d0 fs/fcntl.c:891 __fput+0x715/0x890 fs/file_table.c:277 task_work_run+0x129/0x1a0 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 INITIAL READ USE at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline] _raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236 kill_fasync_rcu fs/fcntl.c:1014 [inline] kill_fasync+0x16a/0x490 fs/fcntl.c:1035 __pass_event drivers/input/evdev.c:240 [inline] evdev_pass_values+0x5ad/0xb60 drivers/input/evdev.c:278 evdev_events+0x198/0x2c0 drivers/input/evdev.c:306 input_to_handler drivers/input/input.c:126 [inline] input_pass_values+0x873/0x1200 drivers/input/input.c:156 input_handle_event+0xc9b/0x1600 drivers/input/input.c:415 input_inject_event+0x1fc/0x300 drivers/input/input.c:487 evdev_write+0x668/0x7c0 drivers/input/evdev.c:530 vfs_write+0x30c/0xe50 fs/read_write.c:592 ksys_write+0x1a2/0x2c0 fs/read_write.c:647 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 } ... key at: [] fasync_insert_entry.__key+0x0/0x20 ... acquired at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline] _raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236 kill_fasync_rcu fs/fcntl.c:1014 [inline] kill_fasync+0x16a/0x490 fs/fcntl.c:1035 __pass_event drivers/input/evdev.c:240 [inline] evdev_pass_values+0x5ad/0xb60 drivers/input/evdev.c:278 evdev_events+0x198/0x2c0 drivers/input/evdev.c:306 input_to_handler drivers/input/input.c:126 [inline] input_pass_values+0x873/0x1200 drivers/input/input.c:156 input_handle_event+0xc9b/0x1600 drivers/input/input.c:415 input_inject_event+0x1fc/0x300 drivers/input/input.c:487 evdev_write+0x668/0x7c0 drivers/input/evdev.c:530 vfs_write+0x30c/0xe50 fs/read_write.c:592 ksys_write+0x1a2/0x2c0 fs/read_write.c:647 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 -> (&f->f_owner.lock){....}-{2:2} { INITIAL USE at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline] _raw_write_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:316 f_modown+0x38/0x340 fs/fcntl.c:91 fcntl_dirnotify+0x688/0x890 fs/notify/dnotify/dnotify.c:351 do_fcntl+0x605/0x1600 fs/fcntl.c:422 __do_sys_fcntl fs/fcntl.c:472 [inline] __se_sys_fcntl+0xd8/0x1b0 fs/fcntl.c:457 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 INITIAL READ USE at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline] _raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236 send_sigio+0x2f/0x330 fs/fcntl.c:796 kill_fasync_rcu fs/fcntl.c:1021 [inline] kill_fasync+0x20c/0x490 fs/fcntl.c:1035 __pass_event drivers/input/evdev.c:240 [inline] evdev_pass_values+0x5ad/0xb60 drivers/input/evdev.c:278 evdev_events+0x198/0x2c0 drivers/input/evdev.c:306 input_to_handler drivers/input/input.c:126 [inline] input_pass_values+0x873/0x1200 drivers/input/input.c:156 input_handle_event+0xc9b/0x1600 drivers/input/input.c:415 input_inject_event+0x1fc/0x300 drivers/input/input.c:487 evdev_write+0x668/0x7c0 drivers/input/evdev.c:530 vfs_write+0x30c/0xe50 fs/read_write.c:592 ksys_write+0x1a2/0x2c0 fs/read_write.c:647 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 } ... key at: [] __alloc_file.__key+0x0/0x10 ... acquired at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline] _raw_read_lock_irqsave+0xd9/0x120 kernel/locking/spinlock.c:236 send_sigio+0x2f/0x330 fs/fcntl.c:796 kill_fasync_rcu fs/fcntl.c:1021 [inline] kill_fasync+0x20c/0x490 fs/fcntl.c:1035 __pass_event drivers/input/evdev.c:240 [inline] evdev_pass_values+0x5ad/0xb60 drivers/input/evdev.c:278 evdev_events+0x198/0x2c0 drivers/input/evdev.c:306 input_to_handler drivers/input/input.c:126 [inline] input_pass_values+0x873/0x1200 drivers/input/input.c:156 input_handle_event+0xc9b/0x1600 drivers/input/input.c:415 input_inject_event+0x1fc/0x300 drivers/input/input.c:487 evdev_write+0x668/0x7c0 drivers/input/evdev.c:530 vfs_write+0x30c/0xe50 fs/read_write.c:592 ksys_write+0x1a2/0x2c0 fs/read_write.c:647 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: -> (tasklist_lock){.+.+}-{2:2} { HARDIRQ-ON-R at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228 do_wait+0x2a7/0xaf0 kernel/exit.c:1576 kernel_wait+0xe5/0x230 kernel/exit.c:1766 call_usermodehelper_exec_sync kernel/umh.c:139 [inline] call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:166 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 SOFTIRQ-ON-R at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228 do_wait+0x2a7/0xaf0 kernel/exit.c:1576 kernel_wait+0xe5/0x230 kernel/exit.c:1766 call_usermodehelper_exec_sync kernel/umh.c:139 [inline] call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:166 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 INITIAL USE at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline] _raw_write_lock_irq+0xcf/0x110 kernel/locking/spinlock.c:316 copy_process+0x22be/0x3ef0 kernel/fork.c:2337 kernel_clone+0x210/0x960 kernel/fork.c:2604 kernel_thread+0x168/0x1e0 kernel/fork.c:2656 rest_init+0x21/0x330 init/main.c:704 start_kernel+0x48c/0x540 init/main.c:1138 secondary_startup_64_no_verify+0xb1/0xbb INITIAL READ USE at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228 do_wait+0x2a7/0xaf0 kernel/exit.c:1576 kernel_wait+0xe5/0x230 kernel/exit.c:1766 call_usermodehelper_exec_sync kernel/umh.c:139 [inline] call_usermodehelper_exec_work+0xb5/0x220 kernel/umh.c:166 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457 kthread+0x3f6/0x4f0 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:300 } ... key at: [] tasklist_lock+0x18/0x40 ... acquired at: lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228 send_sigurg+0xc8/0x380 fs/fcntl.c:851 sk_send_sigurg+0x6a/0xb0 net/core/sock.c:3128 tcp_check_urg net/ipv4/tcp_input.c:5609 [inline] tcp_urg+0x2b8/0xb40 net/ipv4/tcp_input.c:5650 tcp_rcv_established+0xe33/0x1e20 net/ipv4/tcp_input.c:5984 tcp_v6_do_rcv+0x4f2/0x10f0 net/ipv6/tcp_ipv6.c:1526 sk_backlog_rcv include/net/sock.h:1059 [inline] __release_sock+0x198/0x4b0 net/core/sock.c:2724 release_sock+0x5d/0x1c0 net/core/sock.c:3265 tcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1457 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] __sys_sendto+0x564/0x720 net/socket.c:2058 __do_sys_sendto net/socket.c:2070 [inline] __se_sys_sendto net/socket.c:2066 [inline] __x64_sys_sendto+0xda/0xf0 net/socket.c:2066 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 stack backtrace: CPU: 0 PID: 4755 Comm: syz-executor.2 Not tainted 5.15.154-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 print_bad_irq_dependency kernel/locking/lockdep.c:2567 [inline] check_irq_usage kernel/locking/lockdep.c:2806 [inline] check_prev_add kernel/locking/lockdep.c:3057 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain+0x4d01/0x5930 kernel/locking/lockdep.c:3788 __lock_acquire+0x1295/0x1ff0 kernel/locking/lockdep.c:5012 lock_acquire+0x1db/0x4f0 kernel/locking/lockdep.c:5623 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228 send_sigurg+0xc8/0x380 fs/fcntl.c:851 sk_send_sigurg+0x6a/0xb0 net/core/sock.c:3128 tcp_check_urg net/ipv4/tcp_input.c:5609 [inline] tcp_urg+0x2b8/0xb40 net/ipv4/tcp_input.c:5650 tcp_rcv_established+0xe33/0x1e20 net/ipv4/tcp_input.c:5984 tcp_v6_do_rcv+0x4f2/0x10f0 net/ipv6/tcp_ipv6.c:1526 sk_backlog_rcv include/net/sock.h:1059 [inline] __release_sock+0x198/0x4b0 net/core/sock.c:2724 release_sock+0x5d/0x1c0 net/core/sock.c:3265 tcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1457 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] __sys_sendto+0x564/0x720 net/socket.c:2058 __do_sys_sendto net/socket.c:2070 [inline] __se_sys_sendto net/socket.c:2066 [inline] __x64_sys_sendto+0xda/0xf0 net/socket.c:2066 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fa121e8ce69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa1203ff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fa121fbaf80 RCX: 00007fa121e8ce69 RDX: 0000000000000002 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 00007fa121ed947a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fa121fbaf80 R15: 00007ffeada465e8