[ 2.365435] ip (264) used greatest stack depth: 12408 bytes left [ 2.399669] ip (270) used greatest stack depth: 12136 bytes left [ 2.527858] veth0: renamed from veth-rt-1 [ 2.655961] veth0: renamed from veth-rt-2 [ 58.710424] ------------[ cut here ]------------ [ 58.710554] refcount_t: underflow; use-after-free. [ 58.710647] WARNING: CPU: 2 PID: 67 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 58.710732] Modules linked in: [ 58.710786] CPU: 2 UID: 0 PID: 67 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 58.710913] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 58.710980] Workqueue: netns cleanup_net [ 58.711037] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 58.711098] Code: 89 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 89 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 [ 58.711253] RSP: 0018:ffffb5a700257d50 EFLAGS: 00010286 [ 58.711314] RAX: 0000000000000000 RBX: ffffb5a700257d60 RCX: 00000000ffffdfff [ 58.711407] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 58.711478] RBP: ffffb5a700257858 R08: ffffffff8a15ba28 R09: 00000000ffffdfff [ 58.711559] R10: ffffffff8a07ba40 R11: ffffffff8a12ba40 R12: dead000000000122 [ 58.711652] R13: 00000000fffc50f6 R14: 0000000000000001 R15: ffff9a51843d5000 [ 58.711736] FS: 0000000000000000(0000) GS:ffff9a5234491000(0000) knlGS:0000000000000000 [ 58.711838] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.711920] CR2: 00007ffda9846b18 CR3: 0000000003059006 CR4: 0000000000772ef0 [ 58.712056] PKRU: 55555554 [ 58.712098] Call Trace: [ 58.712141] [ 58.712194] netdev_run_todo+0x21a/0x550 [ 58.712262] ops_undo_list+0x1e3/0x1f0 [ 58.712319] cleanup_net+0x1b7/0x300 [ 58.712394] process_one_work+0x162/0x380 [ 58.712451] worker_thread+0x299/0x3c0 [ 58.712509] ? rescuer_thread+0x4c0/0x4c0 [ 58.712566] kthread+0x101/0x1f0 [ 58.712657] ? kthreads_online_cpu+0x110/0x110 [ 58.712760] ? kthreads_online_cpu+0x110/0x110 [ 58.712844] ret_from_fork+0x11c/0x140 [ 58.712897] ? kthreads_online_cpu+0x110/0x110 [ 58.712954] ret_from_fork_asm+0x11/0x20 [ 58.713030] [ 58.713080] ---[ end trace 0000000000000000 ]---