------------[ cut here ]------------ WARNING: CPU: 0 PID: 6848 at lib/ref_tracker.c:179 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] WARNING: CPU: 0 PID: 6848 at lib/ref_tracker.c:179 ref_tracker_dir_exit+0x390/0x4b4 lib/ref_tracker.c:178 Modules linked in: CPU: 0 UID: 0 PID: 6848 Comm: kworker/u8:18 Not tainted 6.13.0-rc3-syzkaller-g573067a5a685 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: netns cleanup_net pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ref_tracker_dir_exit+0x390/0x4b4 include/linux/spinlock.h:406 lr : spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] lr : ref_tracker_dir_exit+0x390/0x4b4 lib/ref_tracker.c:178 sp : ffff8000a36c78e0 x29: ffff8000a36c7960 x28: ffff0000ee4381e0 x27: 1ffff000146d8f20 x26: dfff800000000000 x25: ffff0000ee438230 x24: dead000000000100 x23: ffff0000ee438230 x22: ffff0000ee4381e0 x21: ffff0000ee438230 x20: ffff0000ee438230 x19: 1fffe00018e82058 x18: 1fffe000366fc27e x17: ffff80008f99d000 x16: ffff800080463930 x15: 0000000000000001 x14: 1fffe000366fecd0 x13: ffff8000a36c8000 x12: 0000000000000003 x11: 0000000000000001 x10: 0000000000000003 x9 : 0000000000000001 x8 : 0000000000000008 x7 : ffff8000803cf9cc x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff80008b746ea0 x0 : ffff800123ef6000 Call trace: spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] (P) ref_tracker_dir_exit+0x390/0x4b4 lib/ref_tracker.c:178 (P) net_free+0x80/0xf8 net/core/net_namespace.c:473 cleanup_net+0x98c/0xa34 net/core/net_namespace.c:671 process_one_work+0x7a8/0x15cc kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3391 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 1854380 hardirqs last enabled at (1854379): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1535 [inline] hardirqs last enabled at (1854379): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5123 hardirqs last disabled at (1854380): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (1854376): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (1854376): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (1854367): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]---