------------[ cut here ]------------ WARNING: CPU: 1 PID: 11 at kernel/workqueue.c:1728 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 11 at kernel/workqueue.c:1728 is_chained_work kernel/workqueue.c:1669 [inline] WARNING: CPU: 1 PID: 11 at kernel/workqueue.c:1728 __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 Modules linked in: CPU: 1 PID: 11 Comm: kworker/u4:0 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 Workqueue: netns cleanup_net pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xdb8/0x12bc kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:1669 [inline] lr : __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 sp : ffff800080017b70 x29: ffff800080017bb0 x28: 1fffe00018337781 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000cac0a000 x24: 0000000000000008 x23: ffff0000cac0a1c0 x22: ffff0000c19bbc08 x21: 0000000000000100 x20: ffff0000c19bbc00 x19: ffff000120594c10 x18: 1fffe00036804396 x17: ffff800125436000 x16: ffff80008ad6b09c x15: 0000000000000002 x14: ffff80008eca0458 x13: dfff800000000000 x12: 0000000077767c79 x11: 000000006b4c79ee x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c19bbc00 x7 : ffff80008042755c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008d4611c0 x2 : ffff000120594c10 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] is_chained_work kernel/workqueue.c:1669 [inline] __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:1931 call_timer_fn+0x19c/0x8d4 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1746 [inline] __run_timers+0x57c/0x6fc kernel/time/timer.c:2038 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2051 __do_softirq+0x2d8/0xce4 kernel/softirq.c:553 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:434 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:632 irq_exit_rcu+0x14/0x84 kernel/softirq.c:644 __el1_irq arch/arm64/kernel/entry-common.c:537 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:551 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:556 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:594 preempt_count+0x2c/0x68 arch/arm64/include/asm/preempt.h:13 check_preemption_disabled+0x38/0xf8 lib/smp_processor_id.c:16 debug_smp_processor_id+0x20/0x2c lib/smp_processor_id.c:60 rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline] rcu_is_watching+0x5c/0x18c kernel/rcu/tree.c:700 rcu_read_unlock include/linux/rcupdate.h:779 [inline] inet_twsk_purge+0x744/0x85c net/ipv4/inet_timewait_sock.c:321 dccp_v4_exit_batch+0x20/0x2c net/dccp/ipv4.c:1042 ops_exit_list net/core/net_namespace.c:175 [inline] cleanup_net+0x5dc/0x8d0 net/core/net_namespace.c:618 process_one_work+0x694/0x1204 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 irq event stamp: 4169311 hardirqs last enabled at (4169310): [] __do_softirq+0x1bc/0xce4 kernel/softirq.c:537 hardirqs last disabled at (4169311): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (4169311): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (4169294): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (4169294): [] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (4169309): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]---