------------[ cut here ]------------ WARNING: CPU: 0 PID: 578 at kernel/workqueue.c:1728 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 0 PID: 578 at kernel/workqueue.c:1728 is_chained_work kernel/workqueue.c:1669 [inline] WARNING: CPU: 0 PID: 578 at kernel/workqueue.c:1728 __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 Modules linked in: CPU: 0 PID: 578 Comm: kworker/u4:7 Not tainted 6.8.0-rc6-syzkaller-g9910665503b3 #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 : ffff800080007b70 x29: ffff800080007bb0 x28: 1fffe00018e293c1 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000d9cf1800 x24: 0000000000000008 x23: ffff0000d9cf19c0 x22: ffff0000c7149e08 x21: 0000000000000100 x20: ffff0000c7149e00 x19: ffff0000cfca0c10 x18: 1fffe000367fff96 x17: ffff800125414000 x16: ffff80008ad67f9c x15: 0000000000000002 x14: ffff80008eca0458 x13: dfff800000000000 x12: 0000000077767c79 x11: 000000006b4c79ee x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c7149e00 x7 : ffff800080426480 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008d45fde0 x2 : ffff0000cfca0c10 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 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:176 [inline] arch_local_irq_restore+0x8/0xc arch/arm64/include/asm/irqflags.h:196 lock_is_held include/linux/lockdep.h:231 [inline] __might_resched+0x48/0x4d0 kernel/sched/core.c:10138 inet_twsk_purge+0x110/0x85c net/ipv4/inet_timewait_sock.c:276 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: 6137101 hardirqs last enabled at (6137100): [] __do_softirq+0x1bc/0xce4 kernel/softirq.c:537 hardirqs last disabled at (6137101): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (6137101): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (6137058): [] softirq_handle_end kernel/softirq.c:399 [inline] softirqs last enabled at (6137058): [] __do_softirq+0xac8/0xce4 kernel/softirq.c:582 softirqs last disabled at (6137099): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]---