[    2.338111] ------------[ cut here ]------------
[    2.338233] refcount_t: underflow; use-after-free.
[    2.338317] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    2.338400] Modules linked in: nf_conntrack_netlink nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
[    2.338495] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    2.338583] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.338638] Workqueue: netns cleanup_net
[    2.338681] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    2.338727] Code: b7 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 b1 b7 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
[    2.338902] RSP: 0018:ffffb22680067d50 EFLAGS: 00010286
[    2.338952] RAX: 0000000000000000 RBX: ffffb22680067d60 RCX: 00000000ffffdfff
[    2.339017] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001