------------[ cut here ]------------ WARNING: net/ipv4/af_inet.c:157 at inet_sock_destruct+0x538/0x630 net/ipv4/af_inet.c:157, CPU#0: kworker/u8:18/6123 Modules linked in: CPU: 0 UID: 0 PID: 6123 Comm: kworker/u8:18 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Workqueue: netns cleanup_net pstate: 43400005 (nZcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : inet_sock_destruct+0x538/0x630 net/ipv4/af_inet.c:157 lr : inet_sock_destruct+0x538/0x630 net/ipv4/af_inet.c:157 sp : ffff800097bc7c30 x29: ffff800097bc7c40 x28: ffff8000891a8074 x27: 0000000000000001 x26: 1fffe0001b60a852 x25: dfff800000000000 x24: ffff0000db054708 x23: ffff0000db054200 x22: ffff0000db054290 x21: ffff0000dd440000 x20: 0000000000000f70 x19: 0000000000800101 x18: 00000000ffffffff x17: ffff80010c42d000 x16: ffff8000805387e4 x15: 0000000000000001 x14: 1fffe0001b60a894 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001b60a895 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000da943900 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000001 x3 : ffff800089af72d0 x2 : 0000000000000000 x1 : 0000000000000f70 x0 : 0000000000000000 Call trace: inet_sock_destruct+0x538/0x630 net/ipv4/af_inet.c:157 (P) udp_destruct_sock+0x28/0x38 net/ipv4/udp.c:1836 __sk_destruct+0x80/0x924 net/core/sock.c:2350 rcu_do_batch kernel/rcu/tree.c:2605 [inline] rcu_core+0x848/0x1774 kernel/rcu/tree.c:2857 rcu_core_si+0x10/0x1c kernel/rcu/tree.c:2874 handle_softirqs+0x31c/0xc88 kernel/softirq.c:622 __do_softirq+0x14/0x20 kernel/softirq.c:656 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:68 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:891 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:73 invoke_softirq kernel/softirq.c:503 [inline] __irq_exit_rcu+0x1b0/0x478 kernel/softirq.c:723 irq_exit_rcu+0x14/0x84 kernel/softirq.c:739 __el1_irq arch/arm64/kernel/entry-common.c:498 [inline] el1_interrupt+0x40/0x60 arch/arm64/kernel/entry-common.c:510 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:515 el1h_64_irq+0x6c/0x70 arch/arm64/kernel/entry.S:592 __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:26 [inline] (P) arch_local_irq_enable arch/arm64/include/asm/irqflags.h:48 [inline] (P) __local_bh_enable_ip+0x1f0/0x35c kernel/softirq.c:455 (P) __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline] _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] addrconf_ifdown+0x588/0x148c net/ipv6/addrconf.c:3907 addrconf_notify+0x2f4/0xd14 net/ipv6/addrconf.c:-1 notifier_call_chain+0x190/0x4cc kernel/notifier.c:85 raw_notifier_call_chain+0x3c/0x50 kernel/notifier.c:453 call_netdevice_notifiers_info net/core/dev.c:2230 [inline] call_netdevice_notifiers_extack net/core/dev.c:2268 [inline] call_netdevice_notifiers net/core/dev.c:2282 [inline] netif_close_many+0x2bc/0x448 net/core/dev.c:1785 unregister_netdevice_many_notify+0x960/0x2110 net/core/dev.c:12353 unregister_netdevice_many net/core/dev.c:12446 [inline] default_device_exit_batch+0x838/0x8b4 net/core/dev.c:13038 ops_exit_list net/core/net_namespace.c:205 [inline] ops_undo_list+0x428/0x7ec net/core/net_namespace.c:252 cleanup_net+0x3fc/0x638 net/core/net_namespace.c:696 process_one_work+0x7c0/0x1558 kernel/workqueue.c:3257 process_scheduled_works kernel/workqueue.c:3340 [inline] worker_thread+0x958/0xed8 kernel/workqueue.c:3421 kthread+0x5fc/0x75c kernel/kthread.c:463 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:844 irq event stamp: 796067 hardirqs last enabled at (796066): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (796067): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (796048): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (796048): [] addrconf_ifdown+0x588/0x148c net/ipv6/addrconf.c:3907 softirqs last disabled at (796051): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---