FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 ====================================================== WARNING: possible circular locking dependency detected 5.15.114-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.1/30644 is trying to acquire lock: ffff80001497f7f8 ((console_sem).lock){-.-.}-{2:2}, at: down_trylock+0x28/0xd8 kernel/locking/semaphore.c:138 but task is already holding lock: ffff0001b481f498 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x108/0x214 kernel/time/timer.c:946 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&base->lock){-.-.}-{2:2}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xc4/0x14c kernel/locking/spinlock.c:162 lock_timer_base+0x108/0x214 kernel/time/timer.c:946 __mod_timer+0x1b4/0xd30 kernel/time/timer.c:1019 add_timer+0x6c/0x88 kernel/time/timer.c:1144 __queue_delayed_work kernel/workqueue.c:1687 [inline] queue_delayed_work_on+0x1f4/0x330 kernel/workqueue.c:1712 queue_delayed_work include/linux/workqueue.h:517 [inline] schedule_delayed_work include/linux/workqueue.h:621 [inline] psi_group_change+0xd50/0x12a0 kernel/sched/psi.c:758 psi_task_change+0x1dc/0x2e8 kernel/sched/psi.c:826 psi_enqueue kernel/sched/stats.h:104 [inline] enqueue_task kernel/sched/core.c:1973 [inline] activate_task+0x268/0x2d0 kernel/sched/core.c:2005 wake_up_new_task+0x314/0x964 kernel/sched/core.c:4518 kernel_clone+0x47c/0xa58 kernel/fork.c:2625 kernel_thread+0x148/0x1bc kernel/fork.c:2653 rest_init+0x2c/0x38c init/main.c:701 arch_call_rest_init+0x14/0x20 init/main.c:889 start_kernel+0x444/0x604 init/main.c:1144 __primary_switched+0xa8/0xb0 arch/arm64/kernel/head.S:468 -> #2 (&rq->__lock){-.-.}-{2:2}: _raw_spin_lock_nested+0xb4/0x110 kernel/locking/spinlock.c:368 raw_spin_rq_lock_nested+0x2c/0x44 kernel/sched/core.c:475 raw_spin_rq_lock kernel/sched/sched.h:1326 [inline] rq_lock kernel/sched/sched.h:1621 [inline] task_fork_fair+0x7c/0x23c kernel/sched/fair.c:11494 sched_cgroup_fork+0x334/0x3d8 kernel/sched/core.c:4462 copy_process+0x24d4/0x3750 kernel/fork.c:2312 kernel_clone+0x1d8/0xa58 kernel/fork.c:2601 kernel_thread+0x148/0x1bc kernel/fork.c:2653 rest_init+0x2c/0x38c init/main.c:701 arch_call_rest_init+0x14/0x20 init/main.c:889 start_kernel+0x444/0x604 init/main.c:1144 __primary_switched+0xa8/0xb0 arch/arm64/kernel/head.S:468 -> #1 (&p->pi_lock){-.-.}-{2:2}: __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xc4/0x14c kernel/locking/spinlock.c:162 try_to_wake_up+0xb0/0xc2c kernel/sched/core.c:4026 wake_up_process+0x18/0x24 kernel/sched/core.c:4211 __up+0x11c/0x148 kernel/locking/semaphore.c:265 up+0x90/0xb0 kernel/locking/semaphore.c:190 __up_console_sem+0x8c/0x100 kernel/printk/printk.c:256 console_unlock+0x1160/0x1394 kernel/printk/printk.c:2750 vprintk_emit+0x13c/0x218 kernel/printk/printk.c:2268 dev_vprintk_emit+0x29c/0x328 drivers/base/core.c:4595 dev_printk_emit+0xec/0x13c drivers/base/core.c:4606 __netdev_printk+0x2b4/0x39c net/core/dev.c:11433 netdev_info+0x104/0x150 net/core/dev.c:11488 nsim_udp_tunnel_unset_port+0x274/0x454 drivers/net/netdevsim/udp_tunnels.c:64 udp_tunnel_nic_device_sync_by_port net/ipv4/udp_tunnel_nic.c:246 [inline] __udp_tunnel_nic_device_sync+0x878/0x1084 net/ipv4/udp_tunnel_nic.c:289 udp_tunnel_nic_flush+0x474/0x954 net/ipv4/udp_tunnel_nic.c:668 udp_tunnel_nic_unregister net/ipv4/udp_tunnel_nic.c:869 [inline] udp_tunnel_nic_netdevice_event+0x85c/0x139c net/ipv4/udp_tunnel_nic.c:909 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391 call_netdevice_notifiers_info net/core/dev.c:1998 [inline] call_netdevice_notifiers_extack net/core/dev.c:2010 [inline] call_netdevice_notifiers net/core/dev.c:2024 [inline] unregister_netdevice_many+0xec4/0x189c net/core/dev.c:11067 unregister_netdevice_queue+0x2d0/0x31c net/core/dev.c:11000 unregister_netdevice include/linux/netdevice.h:3012 [inline] nsim_destroy+0x58/0x164 drivers/net/netdevsim/netdev.c:382 __nsim_dev_port_del+0x148/0x1a8 drivers/net/netdevsim/dev.c:1352 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1365 [inline] nsim_dev_reload_destroy+0x13c/0x214 drivers/net/netdevsim/dev.c:1564 nsim_dev_reload_down+0xfc/0x16c drivers/net/netdevsim/dev.c:886 devlink_reload+0x1f4/0x630 net/core/devlink.c:3963 devlink_nl_cmd_reload+0x884/0xbc4 net/core/devlink.c:4084 genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline] genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0xc18/0x1018 net/netlink/genetlink.c:792 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2504 genl_rcv+0x38/0x50 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1923 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2412 ___sys_sendmsg+0x214/0x294 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg net/socket.c:2502 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2502 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 -> #0 ((console_sem).lock){-.-.}-{2:2}: check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3787 [inline] __lock_acquire+0x32cc/0x7620 kernel/locking/lockdep.c:5011 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5622 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xc4/0x14c kernel/locking/spinlock.c:162 down_trylock+0x28/0xd8 kernel/locking/semaphore.c:138 __down_trylock_console_sem+0x80/0x144 kernel/printk/printk.c:239 console_trylock+0xb8/0x1f8 kernel/printk/printk.c:2565 console_trylock_spinning+0x1c/0x280 kernel/printk/printk.c:1867 vprintk_emit+0x120/0x218 kernel/printk/printk.c:2267 vprintk_default+0xa0/0xe4 kernel/printk/printk.c:2279 vprintk+0x218/0x2f0 kernel/printk/printk_safe.c:50 _printk+0xdc/0x128 kernel/printk/printk.c:2289 fail_dump lib/fault-inject.c:45 [inline] should_fail+0x3e0/0x5cc lib/fault-inject.c:146 __should_failslab+0xbc/0x110 mm/failslab.c:33 should_failslab+0x10/0x28 mm/slab_common.c:1337 slab_pre_alloc_hook+0x64/0xe8 mm/slab.h:494 slab_alloc_node mm/slub.c:3134 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0x98/0x45c mm/slub.c:3233 kmem_cache_zalloc include/linux/slab.h:711 [inline] fill_pool lib/debugobjects.c:171 [inline] debug_objects_fill_pool+0x4b0/0x7d4 lib/debugobjects.c:600 debug_object_activate+0x114/0x790 lib/debugobjects.c:696 debug_timer_activate kernel/time/timer.c:729 [inline] __mod_timer+0x830/0xd30 kernel/time/timer.c:1050 add_timer+0x6c/0x88 kernel/time/timer.c:1144 __queue_delayed_work kernel/workqueue.c:1687 [inline] queue_delayed_work_on+0x1f4/0x330 kernel/workqueue.c:1712 queue_delayed_work include/linux/workqueue.h:517 [inline] schedule_delayed_work include/linux/workqueue.h:621 [inline] kvfree_call_rcu+0x3c8/0x684 kernel/rcu/tree.c:3581 drop_sysctl_table+0x274/0x3a0 fs/proc/proc_sysctl.c:1680 unregister_sysctl_table+0x94/0x130 fs/proc/proc_sysctl.c:1718 unregister_net_sysctl_table+0x20/0x30 net/sysctl_net.c:175 __devinet_sysctl_unregister net/ipv4/devinet.c:2600 [inline] devinet_sysctl_unregister net/ipv4/devinet.c:2628 [inline] inetdev_destroy net/ipv4/devinet.c:324 [inline] inetdev_event+0x534/0x1234 net/ipv4/devinet.c:1598 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391 call_netdevice_notifiers_info net/core/dev.c:1998 [inline] call_netdevice_notifiers_extack net/core/dev.c:2010 [inline] call_netdevice_notifiers net/core/dev.c:2024 [inline] unregister_netdevice_many+0xec4/0x189c net/core/dev.c:11067 rtnl_delete_link net/core/rtnetlink.c:3065 [inline] rtnl_dellink+0x428/0x6cc net/core/rtnetlink.c:3117 rtnetlink_rcv_msg+0xa74/0xdac net/core/rtnetlink.c:5587 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2504 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5605 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1923 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2412 ___sys_sendmsg+0x214/0x294 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg net/socket.c:2502 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2502 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 other info that might help us debug this: Chain exists of: (console_sem).lock --> &rq->__lock --> &base->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&base->lock); lock(&rq->__lock); lock(&base->lock); lock((console_sem).lock); *** DEADLOCK *** 4 locks held by syz-executor.1/30644: #0: ffff8000169b5c08 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffff8000169b5c08 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0xa2c/0xdac net/core/rtnetlink.c:5584 #1: ffff800014bc34f8 (sysctl_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:363 [inline] #1: ffff800014bc34f8 (sysctl_lock){+.+.}-{2:2}, at: start_unregistering fs/proc/proc_sysctl.c:300 [inline] #1: ffff800014bc34f8 (sysctl_lock){+.+.}-{2:2}, at: drop_sysctl_table+0x154/0x3a0 fs/proc/proc_sysctl.c:1676 #2: ffff0001b481f278 (krc.lock){..-.}-{2:2}, at: krc_this_cpu_lock kernel/rcu/tree.c:3186 [inline] #2: ffff0001b481f278 (krc.lock){..-.}-{2:2}, at: add_ptr_to_bulk_krc_lock kernel/rcu/tree.c:3470 [inline] #2: ffff0001b481f278 (krc.lock){..-.}-{2:2}, at: kvfree_call_rcu+0x120/0x684 kernel/rcu/tree.c:3561 #3: ffff0001b481f498 (&base->lock){-.-.}-{2:2}, at: lock_timer_base+0x108/0x214 kernel/time/timer.c:946 stack backtrace: CPU: 1 PID: 30644 Comm: syz-executor.1 Not tainted 5.15.114-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 print_circular_bug+0x150/0x1b8 kernel/locking/lockdep.c:2011 check_noncircular+0x2cc/0x378 kernel/locking/lockdep.c:2133 check_prev_add kernel/locking/lockdep.c:3053 [inline] check_prevs_add kernel/locking/lockdep.c:3172 [inline] validate_chain kernel/locking/lockdep.c:3787 [inline] __lock_acquire+0x32cc/0x7620 kernel/locking/lockdep.c:5011 lock_acquire+0x240/0x77c kernel/locking/lockdep.c:5622 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xc4/0x14c kernel/locking/spinlock.c:162 down_trylock+0x28/0xd8 kernel/locking/semaphore.c:138 __down_trylock_console_sem+0x80/0x144 kernel/printk/printk.c:239 console_trylock+0xb8/0x1f8 kernel/printk/printk.c:2565 console_trylock_spinning+0x1c/0x280 kernel/printk/printk.c:1867 vprintk_emit+0x120/0x218 kernel/printk/printk.c:2267 vprintk_default+0xa0/0xe4 kernel/printk/printk.c:2279 vprintk+0x218/0x2f0 kernel/printk/printk_safe.c:50 _printk+0xdc/0x128 kernel/printk/printk.c:2289 fail_dump lib/fault-inject.c:45 [inline] should_fail+0x3e0/0x5cc lib/fault-inject.c:146 __should_failslab+0xbc/0x110 mm/failslab.c:33 should_failslab+0x10/0x28 mm/slab_common.c:1337 slab_pre_alloc_hook+0x64/0xe8 mm/slab.h:494 slab_alloc_node mm/slub.c:3134 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0x98/0x45c mm/slub.c:3233 kmem_cache_zalloc include/linux/slab.h:711 [inline] fill_pool lib/debugobjects.c:171 [inline] debug_objects_fill_pool+0x4b0/0x7d4 lib/debugobjects.c:600 debug_object_activate+0x114/0x790 lib/debugobjects.c:696 debug_timer_activate kernel/time/timer.c:729 [inline] __mod_timer+0x830/0xd30 kernel/time/timer.c:1050 add_timer+0x6c/0x88 kernel/time/timer.c:1144 __queue_delayed_work kernel/workqueue.c:1687 [inline] queue_delayed_work_on+0x1f4/0x330 kernel/workqueue.c:1712 queue_delayed_work include/linux/workqueue.h:517 [inline] schedule_delayed_work include/linux/workqueue.h:621 [inline] kvfree_call_rcu+0x3c8/0x684 kernel/rcu/tree.c:3581 drop_sysctl_table+0x274/0x3a0 fs/proc/proc_sysctl.c:1680 unregister_sysctl_table+0x94/0x130 fs/proc/proc_sysctl.c:1718 unregister_net_sysctl_table+0x20/0x30 net/sysctl_net.c:175 __devinet_sysctl_unregister net/ipv4/devinet.c:2600 [inline] devinet_sysctl_unregister net/ipv4/devinet.c:2628 [inline] inetdev_destroy net/ipv4/devinet.c:324 [inline] inetdev_event+0x534/0x1234 net/ipv4/devinet.c:1598 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391 call_netdevice_notifiers_info net/core/dev.c:1998 [inline] call_netdevice_notifiers_extack net/core/dev.c:2010 [inline] call_netdevice_notifiers net/core/dev.c:2024 [inline] unregister_netdevice_many+0xec4/0x189c net/core/dev.c:11067 rtnl_delete_link net/core/rtnetlink.c:3065 [inline] rtnl_dellink+0x428/0x6cc net/core/rtnetlink.c:3117 rtnetlink_rcv_msg+0xa74/0xdac net/core/rtnetlink.c:5587 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2504 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5605 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1923 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2412 ___sys_sendmsg+0x214/0x294 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg net/socket.c:2502 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2502 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 CPU: 1 PID: 30644 Comm: syz-executor.1 Not tainted 5.15.114-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:52 [inline] should_fail+0x400/0x5cc lib/fault-inject.c:146 __should_failslab+0xbc/0x110 mm/failslab.c:33 should_failslab+0x10/0x28 mm/slab_common.c:1337 slab_pre_alloc_hook+0x64/0xe8 mm/slab.h:494 slab_alloc_node mm/slub.c:3134 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0x98/0x45c mm/slub.c:3233 kmem_cache_zalloc include/linux/slab.h:711 [inline] fill_pool lib/debugobjects.c:171 [inline] debug_objects_fill_pool+0x4b0/0x7d4 lib/debugobjects.c:600 debug_object_activate+0x114/0x790 lib/debugobjects.c:696 debug_timer_activate kernel/time/timer.c:729 [inline] __mod_timer+0x830/0xd30 kernel/time/timer.c:1050 add_timer+0x6c/0x88 kernel/time/timer.c:1144 __queue_delayed_work kernel/workqueue.c:1687 [inline] queue_delayed_work_on+0x1f4/0x330 kernel/workqueue.c:1712 queue_delayed_work include/linux/workqueue.h:517 [inline] schedule_delayed_work include/linux/workqueue.h:621 [inline] kvfree_call_rcu+0x3c8/0x684 kernel/rcu/tree.c:3581 drop_sysctl_table+0x274/0x3a0 fs/proc/proc_sysctl.c:1680 unregister_sysctl_table+0x94/0x130 fs/proc/proc_sysctl.c:1718 unregister_net_sysctl_table+0x20/0x30 net/sysctl_net.c:175 __devinet_sysctl_unregister net/ipv4/devinet.c:2600 [inline] devinet_sysctl_unregister net/ipv4/devinet.c:2628 [inline] inetdev_destroy net/ipv4/devinet.c:324 [inline] inetdev_event+0x534/0x1234 net/ipv4/devinet.c:1598 notifier_call_chain kernel/notifier.c:83 [inline] raw_notifier_call_chain+0xd4/0x164 kernel/notifier.c:391 call_netdevice_notifiers_info net/core/dev.c:1998 [inline] call_netdevice_notifiers_extack net/core/dev.c:2010 [inline] call_netdevice_notifiers net/core/dev.c:2024 [inline] unregister_netdevice_many+0xec4/0x189c net/core/dev.c:11067 rtnl_delete_link net/core/rtnetlink.c:3065 [inline] rtnl_dellink+0x428/0x6cc net/core/rtnetlink.c:3117 rtnetlink_rcv_msg+0xa74/0xdac net/core/rtnetlink.c:5587 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2504 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5605 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1923 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2412 ___sys_sendmsg+0x214/0x294 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg net/socket.c:2502 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2502 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 bond219 (unregistering): Released all slaves