[    2.009534] ------------[ cut here ]------------
[    2.009671] refcount_t: underflow; use-after-free.
[    2.009741] WARNING: CPU: 3 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    2.009836] Modules linked in: veth
[    2.009875] CPU: 3 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    2.009980] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.010046] Workqueue: netns cleanup_net
[    2.010119] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    2.010164] Code: bd 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 f1 bd 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
[    2.010394] RSP: 0018:ffffbc9700253d50 EFLAGS: 00010286
[    2.010446] RAX: 0000000000000000 RBX: ffffbc9700253d60 RCX: 00000000ffffdfff
[    2.010517] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    2.010583] RBP: ffffbc9700253880 R08: ffffffffbe356a28 R09: 00000000ffffdfff
[    2.010678] R10: ffffffffbe276a40 R11: ffffffffbe326a40 R12: dead000000000122
[    2.010745] R13: 00000000fffb7378 R14: 0000000000000001 R15: ffff9af802d67000
[    2.010819] FS:  0000000000000000(0000) GS:ffff9af880362000(0000) knlGS:0000000000000000
[    2.010883] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.010938] CR2: 00007fc2e9b60a50 CR3: 0000000001f9d005 CR4: 0000000000772ef0
[    2.011012] PKRU: 55555554
[    2.011042] Call Trace:
[    2.011070]  <TASK>
[    2.011094]  netdev_run_todo+0x21a/0x550
[    2.011139]  ops_undo_list+0x1e3/0x1f0
[    2.011179]  cleanup_net+0x1b7/0x2b0
[    2.011222]  process_one_work+0x162/0x380
[    2.011268]  worker_thread+0x299/0x3c0
[    2.011308]  ? rescuer_thread+0x4c0/0x4c0
[    2.011344]  kthread+0x101/0x1f0
[    2.011391]  ? kthreads_online_cpu+0x110/0x110
[    2.011440]  ? kthreads_online_cpu+0x110/0x110
[    2.011500]  ret_from_fork+0x11c/0x140
[    2.011557]  ? kthreads_online_cpu+0x110/0x110
[    2.011598]  ret_from_fork_asm+0x11/0x20
[    2.011649]  </TASK>
[    2.011675] ---[ end trace 0000000000000000 ]---
[    2.071472] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    3.104733] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    3.104916] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    4.128678] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    4.128890] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    5.152676] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    5.152883] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    6.176683] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    6.176971] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    7.200689] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    7.200941] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    8.224688] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK