[    1.692335] ip (254) used greatest stack depth: 12136 bytes left
[    1.778368] sctp: Hash tables configured (bind 256/256)
[    1.813908] ------------[ cut here ]------------
[    1.813971] refcount_t: underflow; use-after-free.
[    1.814029] WARNING: CPU: 3 PID: 66 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    1.814094] Modules linked in: sctp
[    1.814127] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    1.814199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    1.814242] Workqueue: netns cleanup_net
[    1.814279] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    1.814319] Code: 9b 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 95 9b 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
[    1.814463] RSP: 0018:ffffb7bac024fd50 EFLAGS: 00010286
[    1.814512] RAX: 0000000000000000 RBX: ffffb7bac024fd60 RCX: 00000000ffffdfff
[    1.814591] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    1.814665] RBP: ffffb7bac024f858 R08: ffffffff9c15ba28 R09: 00000000ffffdfff
[    1.814739] R10: ffffffff9c07ba40 R11: ffffffff9c12ba40 R12: dead000000000122
[    1.814793] R13: 00000000fffb72b9 R14: 0000000000000001 R15: ffff9a3a04db5000
[    1.814856] FS:  0000000000000000(0000) GS:ffff9a3aa2511000(0000) knlGS:0000000000000000
[    1.814916] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    1.814967] CR2: 000055ce06182938 CR3: 000000000e446004 CR4: 0000000000772ef0
[    1.815025] PKRU: 55555554
[    1.815041] Call Trace:
[    1.815060]  <TASK>
[    1.815083]  netdev_run_todo+0x21a/0x550
[    1.815125]  ops_undo_list+0x1e3/0x1f0
[    1.815157]  cleanup_net+0x1b7/0x300
[    1.815196]  process_one_work+0x162/0x380
[    1.815232]  worker_thread+0x299/0x3c0
[    1.815273]  ? rescuer_thread+0x4c0/0x4c0
[    1.815312]  kthread+0x101/0x1f0
[    1.815337]  ? kthreads_online_cpu+0x110/0x110
[    1.815378]  ? kthreads_online_cpu+0x110/0x110
[    1.815419]  ret_from_fork+0x11c/0x140
[    1.815455]  ? kthreads_online_cpu+0x110/0x110
[    1.815494]  ret_from_fork_asm+0x11/0x20
[    1.815536]  </TASK>
[    1.815551] ---[ end trace 0000000000000000 ]---