------------[ cut here ]------------ ODEBUG: activate active (active state 1) object: ffff88811f8ac800 object type: rcu_head hint: 0x0 WARNING: CPU: 1 PID: 34 at lib/debugobjects.c:514 debug_print_object+0x7a/0xa0 lib/debugobjects.c:514 Modules linked in: CPU: 1 PID: 34 Comm: kworker/u4:3 Not tainted 6.5.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023 Workqueue: netns cleanup_net RIP: 0010:debug_print_object+0x7a/0xa0 lib/debugobjects.c:514 Code: 01 4c 8b 4d 00 48 c7 c7 90 41 01 84 89 15 8e 9a 4f 04 8b 53 10 8b 4b 14 50 4c 8b 43 18 48 8b 14 d5 60 9b 8b 83 e8 a6 32 54 ff <0f> 0b 58 83 05 b0 4d c6 02 01 48 83 c4 08 5b 5d c3 83 05 a2 4d c6 RSP: 0018:ffffc9000033bbb8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff8881203295c8 RCX: 0000000000000000 RDX: ffff888107251b80 RSI: ffffffff811c5051 RDI: 0000000000000001 RBP: ffffffff83833320 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000004 R12: ffff88811f8ac800 R13: ffffffff86219f28 R14: ffffffff86219f20 R15: ffffffff83833320 FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056498b9b2950 CR3: 0000000004474000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_object_activate+0x1fd/0x280 lib/debugobjects.c:733 debug_rcu_head_queue kernel/rcu/rcu.h:226 [inline] kvfree_call_rcu+0x30/0x3b0 kernel/rcu/tree.c:3359 tcx_entry_free include/net/tcx.h:96 [inline] tcx_uninstall+0x1b1/0x2a0 kernel/bpf/tcx.c:115 dev_tcx_uninstall include/net/tcx.h:174 [inline] unregister_netdevice_many_notify+0x31c/0xc30 net/core/dev.c:10899 ip6_tnl_exit_batch_net+0x1d9/0x210 net/ipv6/ip6_tunnel.c:2278 ops_exit_list+0x74/0x80 net/core/net_namespace.c:175 cleanup_net+0x319/0x530 net/core/net_namespace.c:614 process_one_work+0x3f8/0x8b0 kernel/workqueue.c:2597 worker_thread+0x5e/0x5c0 kernel/workqueue.c:2748 kthread+0x138/0x180 kernel/kthread.c:389 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308