[    2.109766] ip (263) used greatest stack depth: 12296 bytes left
[    2.281102] veth0: renamed from veth-rt-1
[    2.398703] veth0: renamed from veth-rt-2
[    2.672548] ip (304) used greatest stack depth: 12168 bytes left
[   30.409905] ------------[ cut here ]------------
[   30.409987] refcount_t: underflow; use-after-free.
[   30.410051] WARNING: CPU: 0 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   30.410141] Modules linked in:
[   30.410187] CPU: 0 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   30.410329] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.410398] Workqueue: netns cleanup_net
[   30.410448] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   30.410505] Code: a8 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 55 a8 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
[   30.410677] RSP: 0000:ffffbaf580257d50 EFLAGS: 00010286
[   30.410725] RAX: 0000000000000000 RBX: ffffbaf580257d60 RCX: 00000000ffffdfff
[   30.410811] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   30.410893] RBP: ffffbaf580257858 R08: ffffffffa8d5ba28 R09: 00000000ffffdfff
[   30.410967] R10: ffffffffa8c7ba40 R11: ffffffffa8d2ba40 R12: dead000000000122
[   30.411041] R13: 00000000fffbe26a R14: 0000000000000001 R15: ffff92da44df7000
[   30.411119] FS:  0000000000000000(0000) GS:ffff92dad5791000(0000) knlGS:0000000000000000
[   30.411197] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.411258] CR2: 00007f6956360b30 CR3: 000000000791f003 CR4: 0000000000772ef0
[   30.411335] PKRU: 55555554
[   30.411358] Call Trace:
[   30.411385]  <TASK>
[   30.411408]  netdev_run_todo+0x21a/0x550
[   30.411449]  ops_undo_list+0x1e3/0x1f0
[   30.411493]  cleanup_net+0x1b7/0x300
[   30.411530]  process_one_work+0x162/0x380
[   30.411563]  worker_thread+0x299/0x3c0
[   30.411599]  ? rescuer_thread+0x4c0/0x4c0
[   30.411643]  kthread+0x101/0x1f0
[   30.411683]  ? kthreads_online_cpu+0x110/0x110
[   30.411732]  ? kthreads_online_cpu+0x110/0x110
[   30.411782]  ret_from_fork+0x11c/0x140
[   30.411839]  ? kthreads_online_cpu+0x110/0x110
[   30.411890]  ret_from_fork_asm+0x11/0x20
[   30.411936]  </TASK>
[   30.411960] ---[ end trace 0000000000000000 ]---