[    1.787631] ------------[ cut here ]------------
[    1.787704] refcount_t: underflow; use-after-free.
[    1.787762] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    1.787835] Modules linked in: veth
[    1.787882] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    1.787961] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    1.788012] Workqueue: netns cleanup_net
[    1.788053] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    1.788099] Code: a8 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 a8 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
[    1.788243] RSP: 0018:ffffb59580067d50 EFLAGS: 00010286
[    1.788289] RAX: 0000000000000000 RBX: ffffb59580067d60 RCX: 00000000ffffdfff
[    1.788356] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    1.788414] RBP: ffffb59580067880 R08: ffffffffa9356a28 R09: 00000000ffffdfff
[    1.788481] R10: ffffffffa9276a40 R11: ffffffffa9326a40 R12: dead000000000122
[    1.788546] R13: 00000000fffb7298 R14: 0000000000000001 R15: ffff9eb983f39000
[    1.788617] FS:  0000000000000000(0000) GS:ffff9eba151e2000(0000) knlGS:0000000000000000
[    1.788687] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.788741] CR2: 00007f57b6bec000 CR3: 0000000003e13001 CR4: 0000000000772ef0
[    1.788802] PKRU: 55555554
[    1.788827] Call Trace:
[    1.788849]  <TASK>
[    1.788873]  netdev_run_todo+0x21a/0x550
[    1.788917]  ops_undo_list+0x1e3/0x1f0
[    1.788958]  cleanup_net+0x1b7/0x2b0
[    1.788994]  process_one_work+0x162/0x380
[    1.789038]  worker_thread+0x299/0x3c0
[    1.789074]  ? rescuer_thread+0x4c0/0x4c0
[    1.789110]  kthread+0x101/0x1f0
[    1.789147]  ? kthreads_online_cpu+0x110/0x110
[    1.789193]  ? kthreads_online_cpu+0x110/0x110
[    1.789240]  ret_from_fork+0x11c/0x140
[    1.789282]  ? kthreads_online_cpu+0x110/0x110
[    1.789327]  ret_from_fork_asm+0x11/0x20
[    1.789365]  </TASK>
[    1.789390] ---[ end trace 0000000000000000 ]---
[    1.826844] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    2.852667] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    2.852872] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    3.876610] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    3.876779] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    4.900613] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    4.900847] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    5.923618] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    5.923785] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    6.947614] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    6.947793] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    7.971614] TCP: TCP-AO: the keyid 100 from SYN packet is not present - not sending SYNACK
[    8.536517] connect-deny_ip (224) used greatest stack depth: 12488 bytes left