team0 (unregistering): Port device team_slave_0 removed bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): (slave bond_slave_0): Releasing backup interface ------------[ cut here ]------------ refcount_t: decrement hit 0; leaking memory. WARNING: CPU: 0 PID: 30866 at lib/refcount.c:31 refcount_warn_saturate+0x17c/0x1a0 lib/refcount.c:31 Modules linked in: CPU: 0 PID: 30866 Comm: kworker/u4:22 Not tainted 5.16.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net RIP: 0010:refcount_warn_saturate+0x17c/0x1a0 lib/refcount.c:31 Code: d5 8a 31 c0 e8 c5 43 38 fd 0f 0b e9 64 ff ff ff e8 19 6a 6e fd c6 05 94 38 d5 09 01 48 c7 c7 80 02 d5 8a 31 c0 e8 a4 43 38 fd <0f> 0b e9 43 ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c a2 fe ff RSP: 0018:ffffc90004c677c0 EFLAGS: 00010246 RAX: 5e92940694b8c400 RBX: 0000000000000004 RCX: ffff888023290000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 0000000000000004 R08: ffffffff8169fd72 R09: ffffed1017344f2c R10: ffffed1017344f2c R11: 0000000000000000 R12: ffffffff8c5c5848 R13: ffff8880763b8018 R14: ffff8880145da850 R15: 1ffff1100ec77003 FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9e6993e000 CR3: 0000000070994000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject_cleanup+0x1c0/0x280 lib/kobject.c:705 netdev_queue_update_kobjects+0x3c2/0x430 net/core/net-sysfs.c:1725 remove_queue_kobjects net/core/net-sysfs.c:1822 [inline] netdev_unregister_kobject+0x100/0x1b0 net/core/net-sysfs.c:1972 unregister_netdevice_many+0x148b/0x19e0 net/core/dev.c:11104 default_device_exit_batch+0x44b/0x4b0 net/core/dev.c:11607 ops_exit_list net/core/net_namespace.c:171 [inline] cleanup_net+0x7ec/0xc50 net/core/net_namespace.c:593 process_one_work+0x853/0x1140 kernel/workqueue.c:2298 worker_thread+0xac1/0x1320 kernel/workqueue.c:2445 kthread+0x468/0x490 kernel/kthread.c:327 ret_from_fork+0x1f/0x30