[    2.021591] gre: GRE over IPv4 demultiplexer driver
[    2.175620] ip_gre: GRE over IPv4 tunneling driver
[    2.430725] ------------[ cut here ]------------
[    2.430783] refcount_t: underflow; use-after-free.
[    2.430828] WARNING: CPU: 3 PID: 66 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    2.430891] Modules linked in: ip_gre gre
[    2.430924] CPU: 3 UID: 0 PID: 66 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    2.430989] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.431039] Workqueue: netns cleanup_net
[    2.431074] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    2.431113] Code: 86 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 15 86 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
[    2.431235] RSP: 0018:ffffb7a48024fd50 EFLAGS: 00010286
[    2.431273] RAX: 0000000000000000 RBX: ffffb7a48024fd60 RCX: 00000000ffffdfff
[    2.431320] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    2.431373] RBP: ffffb7a48024f858 R08: ffffffff8695ba28 R09: 00000000ffffdfff
[    2.431422] R10: ffffffff8687ba40 R11: ffffffff8692ba40 R12: dead000000000122
[    2.431477] R13: 00000000fffb7519 R14: 0000000000000001 R15: ffff90e2464b2000
[    2.431526] FS:  0000000000000000(0000) GS:ffff90e2f7d11000(0000) knlGS:0000000000000000
[    2.431584] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.431633] CR2: 00007f758d3d5f88 CR3: 0000000004ef5002 CR4: 0000000000772ef0
[    2.431684] PKRU: 55555554
[    2.431705] Call Trace:
[    2.431722]  <TASK>
[    2.431743]  netdev_run_todo+0x21a/0x550
[    2.431776]  ops_undo_list+0x1e3/0x1f0
[    2.431804]  cleanup_net+0x1b7/0x300
[    2.431835]  process_one_work+0x162/0x380
[    2.431869]  worker_thread+0x299/0x3c0
[    2.431907]  ? rescuer_thread+0x4c0/0x4c0
[    2.431938]  kthread+0x101/0x1f0
[    2.431969]  ? kthreads_online_cpu+0x110/0x110
[    2.432008]  ? kthreads_online_cpu+0x110/0x110
[    2.432048]  ret_from_fork+0x11c/0x140
[    2.432079]  ? kthreads_online_cpu+0x110/0x110
[    2.432131]  ret_from_fork_asm+0x11/0x20
[    2.432175]  </TASK>
[    2.432200] ---[ end trace 0000000000000000 ]---
[   10.990944] ip6_gre: GRE over IPv6 tunneling driver
[   16.677635] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   18.086634] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   19.429637] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   20.837626] ip6_tunnel: tep0 xmit: Local address not yet configured!