[   16.881714] ------------[ cut here ]------------
[   16.881778] refcount_t: underflow; use-after-free.
[   16.881828] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   16.881888] Modules linked in: xt_conntrack nf_conntrack nf_defrag_ipv4 nft_compat nf_tables nf_defrag_ipv6
[   16.881960] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   16.882020] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   16.882060] Workqueue: netns cleanup_net
[   16.882107] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   16.882147] Code: 9f e8 e8 54 ba ff 90 0f 0b 90 90 c3 80 3d 00 e6 2b 01 00 75 89 c6 05 f7 e5 2b 01 01 90 48 c7 c7 f8 48 75 9f e8 c5 54 ba ff 90 <0f> 0b 90 90 c3 80 3d db e5 2b 01 00 0f 85 62 ff ff ff c6 05 ce e5
[   16.882261] RSP: 0018:ffffa119c0067d50 EFLAGS: 00010286
[   16.882298] RAX: 0000000000000000 RBX: ffffa119c0067d60 RCX: 00000000ffffdfff
[   16.882354] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   16.882400] RBP: ffffa119c0067858 R08: ffffffff9ff5ba28 R09: 00000000ffffdfff
[   16.882447] R10: ffffffff9fe7ba40 R11: ffffffff9ff2ba40 R12: dead000000000122
[   16.882496] R13: 00000000fffbad92 R14: 0000000000000001 R15: ffff902b86a03000
[   16.882544] FS:  0000000000000000(0000) GS:ffff902c1e591000(0000) knlGS:0000000000000000
[   16.882611] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.882653] CR2: 00007fc3fa7ae6e1 CR3: 0000000003f61003 CR4: 0000000000772ef0
[   16.882709] PKRU: 55555554
[   16.882730] Call Trace:
[   16.882749]  <TASK>
[   16.882770]  netdev_run_todo+0x21a/0x550
[   16.882804]  ops_undo_list+0x1e3/0x1f0
[   16.882839]  cleanup_net+0x1b7/0x300
[   16.882871]  process_one_work+0x162/0x380
[   16.882908]  worker_thread+0x299/0x3c0
[   16.882939]  ? rescuer_thread+0x4c0/0x4c0
[   16.882968]  kthread+0x101/0x1f0
[   16.883000]  ? kthreads_online_cpu+0x110/0x110
[   16.883039]  ? kthreads_online_cpu+0x110/0x110
[   16.883081]  ret_from_fork+0x11c/0x140
[   16.883182]  ? kthreads_online_cpu+0x110/0x110
[   16.883221]  ret_from_fork_asm+0x11/0x20
[   16.883256]  </TASK>
[   16.883273] ---[ end trace 0000000000000000 ]---