[    2.142160] ip (232) used greatest stack depth: 12344 bytes left
[    2.239643] bond0: (slave eth0): making interface the new active one
[    2.239739] bond0: (slave eth0): Enslaving as an active interface with an up link
[    6.459233] bond0: (slave eth0): Releasing backup interface
[    6.542325] bond0: (slave eth0): Enslaving as an active interface with an up link
[   10.752013] ------------[ cut here ]------------
[   10.752093] refcount_t: underflow; use-after-free.
[   10.752167] WARNING: CPU: 0 PID: 247 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   10.752259] Modules linked in:
[   10.752313] CPU: 0 UID: 0 PID: 247 Comm: kworker/u16:2 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   10.752421] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.752502] Workqueue: netns cleanup_net
[   10.752553] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   10.752613] Code: b3 e8 88 98 ba ff 90 0f 0b 90 90 c3 80 3d 69 b4 eb 00 00 75 89 c6 05 60 b4 eb 00 01 90 48 c7 c7 98 6e d4 b3 e8 65 98 ba ff 90 <0f> 0b 90 90 c3 80 3d 44 b4 eb 00 00 0f 85 62 ff ff ff c6 05 37 b4
[   10.752815] RSP: 0018:ffffa702805dfd50 EFLAGS: 00010286
[   10.752879] RAX: 0000000000000000 RBX: ffffa702805dfd60 RCX: 00000000ffffdfff
[   10.752970] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   10.753053] RBP: ffffa702805df878 R08: ffffffffb4156a28 R09: 00000000ffffdfff
[   10.753135] R10: ffffffffb4076a40 R11: ffffffffb4126a40 R12: dead000000000122
[   10.753215] R13: 00000000fffb95a0 R14: 0000000000000001 R15: ffff99164112d000
[   10.753302] FS:  0000000000000000(0000) GS:ffff9916ca3b7000(0000) knlGS:0000000000000000
[   10.753393] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.753458] CR2: 00007f31b7973840 CR3: 000000003cc41002 CR4: 0000000000772ef0
[   10.753541] PKRU: 55555554
[   10.753569] Call Trace:
[   10.753597]  <TASK>
[   10.753624]  netdev_run_todo+0x21a/0x550
[   10.753674]  ops_undo_list+0x1e3/0x1f0
[   10.753712]  cleanup_net+0x1b7/0x2b0
[   10.753769]  process_one_work+0x162/0x380
[   10.753815]  worker_thread+0x299/0x3c0
[   10.753856]  ? rescuer_thread+0x4c0/0x4c0
[   10.753896]  kthread+0x101/0x1f0
[   10.753944]  ? kthreads_online_cpu+0x110/0x110
[   10.754001]  ? kthreads_online_cpu+0x110/0x110
[   10.754067]  ret_from_fork+0x11c/0x140
[   10.754116]  ? kthreads_online_cpu+0x110/0x110
[   10.754168]  ret_from_fork_asm+0x11/0x20
[   10.754213]  </TASK>
[   10.754238] ---[ end trace 0000000000000000 ]---
[   10.754680] bond0: (slave eth0): Releasing backup interface
[   10.778303] bond0 (unregistering): Released all slaves