[    2.243405] sctp: Hash tables configured (bind 256/256)
[    2.277447] ip (251) used greatest stack depth: 12136 bytes left
[   45.990923] ------------[ cut here ]------------
[   45.991030] refcount_t: underflow; use-after-free.
[   45.991106] WARNING: CPU: 0 PID: 68 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   45.991216] Modules linked in: nf_conntrack_netlink nft_nat nft_numgen nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 sctp_diag nft_limit tcp_diag inet_diag nfnetlink_queue nft_queue nf_tables veth sctp ip6_udp_tunnel udp_tunnel
[   45.991453] CPU: 0 UID: 0 PID: 68 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   45.991552] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.991621] Workqueue: netns cleanup_net
[   45.991671] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   45.991722] Code: ad e8 18 ed b9 ff 90 0f 0b 90 90 c3 80 3d d9 ea ea 00 00 75 89 c6 05 d0 ea ea 00 01 90 48 c7 c7 78 de 91 ad e8 f5 ec b9 ff 90 <0f> 0b 90 90 c3 80 3d b4 ea ea 00 00 0f 85 62 ff ff ff c6 05 a7 ea
[   45.991906] RSP: 0018:ffffb6c1c025fd50 EFLAGS: 00010286
[   45.991965] RAX: 0000000000000000 RBX: ffffb6c1c025fd60 RCX: 00000000ffffdfff
[   45.992043] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   45.992119] RBP: ffffb6c1c025f868 R08: ffffffffadd56d28 R09: 00000000ffffdfff
[   45.992197] R10: ffffffffadc76d40 R11: ffffffffadd26d40 R12: dead000000000122
[   45.992275] R13: 00000000fffc1f40 R14: 0000000000000001 R15: ffff986a47b1b000
[   45.992353] FS:  0000000000000000(0000) GS:ffff986ad07d8000(0000) knlGS:0000000000000000
[   45.992437] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.992502] CR2: 00007f5b5ef8f760 CR3: 000000001fe41006 CR4: 0000000000772ef0
[   45.992578] PKRU: 55555554
[   45.992610] Call Trace:
[   45.992642]  <TASK>
[   45.992669]  netdev_run_todo+0x21a/0x550
[   45.992715]  ops_undo_list+0x1e3/0x1f0
[   45.992761]  cleanup_net+0x1b7/0x2b0
[   45.992799]  process_one_work+0x162/0x380
[   45.992864]  worker_thread+0x299/0x3c0
[   45.992910]  ? rescuer_thread+0x4c0/0x4c0
[   45.992949]  kthread+0x101/0x1f0
[   45.992997]  ? kthreads_online_cpu+0x110/0x110
[   45.993054]  ? kthreads_online_cpu+0x110/0x110
[   45.993106]  ret_from_fork+0x11c/0x140
[   45.993157]  ? kthreads_online_cpu+0x110/0x110
[   45.993208]  ret_from_fork_asm+0x11/0x20
[   45.993255]  </TASK>
[   45.993280] ---[ end trace 0000000000000000 ]---