[    1.984584] ------------[ cut here ]------------
[    1.984700] refcount_t: underflow; use-after-free.
[    1.984778] WARNING: CPU: 0 PID: 66 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    1.984881] Modules linked in: veth
[    1.984934] CPU: 0 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    1.985041] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    1.985119] Workqueue: netns cleanup_net
[    1.985170] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    1.985235] Code: b8 e8 f8 c3 ba ff 90 0f 0b 90 90 c3 80 3d 39 c1 eb 00 00 75 89 c6 05 30 c1 eb 00 01 90 48 c7 c7 30 a0 d1 b8 e8 d5 c3 ba ff 90 <0f> 0b 90 90 c3 80 3d 14 c1 eb 00 00 0f 85 62 ff ff ff c6 05 07 c1
[    1.985424] RSP: 0018:ffffac580024bd50 EFLAGS: 00010286
[    1.985481] RAX: 0000000000000000 RBX: ffffac580024bd60 RCX: 00000000ffffdfff
[    1.985572] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    1.985664] RBP: ffffac580024b880 R08: ffffffffb9156a28 R09: 00000000ffffdfff
[    1.985749] R10: ffffffffb9076a40 R11: ffffffffb9126a40 R12: dead000000000122
[    1.985833] R13: 00000000fffb735d R14: 0000000000000001 R15: ffffa07505771000
[    1.985920] FS:  0000000000000000(0000) GS:ffffa075853e2000(0000) knlGS:0000000000000000
[    1.986013] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.986089] CR2: 00007fd57d28fdb0 CR3: 0000000003135004 CR4: 0000000000772ef0
[    1.986176] PKRU: 55555554
[    1.986202] Call Trace:
[    1.986233]  <TASK>
[    1.986268]  netdev_run_todo+0x21a/0x550
[    1.986330]  ops_undo_list+0x1e3/0x1f0
[    1.986379]  cleanup_net+0x1b7/0x2b0
[    1.986429]  process_one_work+0x162/0x380
[    1.986482]  worker_thread+0x299/0x3c0
[    1.986532]  ? rescuer_thread+0x4c0/0x4c0
[    1.986586]  kthread+0x101/0x1f0
[    1.986634]  ? kthreads_online_cpu+0x110/0x110
[    1.986699]  ? kthreads_online_cpu+0x110/0x110
[    1.986756]  ret_from_fork+0x11c/0x140
[    1.986807]  ? kthreads_online_cpu+0x110/0x110
[    1.986864]  ret_from_fork_asm+0x11/0x20
[    1.986916]  </TASK>
[    1.986952] ---[ end trace 0000000000000000 ]---
[    2.018090] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    3.044604] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    3.044864] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    4.068579] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    4.068870] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    5.092581] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    5.092905] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    6.116573] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    6.116862] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    7.140571] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    7.140846] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    8.164577] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK