[    2.437514] GACT probability NOT on
[    2.438756] tc (273) used greatest stack depth: 11840 bytes left
[    7.056971] ------------[ cut here ]------------
[    7.057045] refcount_t: underflow; use-after-free.
[    7.057108] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    7.057176] Modules linked in: act_gact cls_flower sch_ingress
[    7.057226] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    7.057291] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    7.057331] Workqueue: netns cleanup_net
[    7.057368] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    7.057407] Code: 90 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 90 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
[    7.057526] RSP: 0018:ffffae7540067d50 EFLAGS: 00010286
[    7.057565] RAX: 0000000000000000 RBX: ffffae7540067d60 RCX: 00000000ffffdfff
[    7.057612] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    7.057661] RBP: ffffae7540067858 R08: ffffffff9115ba28 R09: 00000000ffffdfff
[    7.057712] R10: ffffffff9107ba40 R11: ffffffff9112ba40 R12: dead000000000122
[    7.057779] R13: 00000000fffb8713 R14: 0000000000000001 R15: ffff898a84b3d000
[    7.057828] FS:  0000000000000000(0000) GS:ffff898b2d391000(0000) knlGS:0000000000000000
[    7.057881] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    7.057942] CR2: 00005573fc822dec CR3: 0000000009011004 CR4: 0000000000772ef0
[    7.058003] PKRU: 55555554
[    7.058024] Call Trace:
[    7.058041]  <TASK>
[    7.058062]  netdev_run_todo+0x21a/0x550
[    7.058102]  ops_undo_list+0x1e3/0x1f0
[    7.058130]  cleanup_net+0x1b7/0x300
[    7.058161]  process_one_work+0x162/0x380
[    7.058197]  worker_thread+0x299/0x3c0
[    7.058228]  ? rescuer_thread+0x4c0/0x4c0
[    7.058265]  kthread+0x101/0x1f0
[    7.058304]  ? kthreads_online_cpu+0x110/0x110
[    7.058349]  ? kthreads_online_cpu+0x110/0x110
[    7.058388]  ret_from_fork+0x11c/0x140
[    7.058423]  ? kthreads_online_cpu+0x110/0x110
[    7.058461]  ret_from_fork_asm+0x11/0x20
[    7.058499]  </TASK>
[    7.058519] ---[ end trace 0000000000000000 ]---