[    2.072717] ------------[ cut here ]------------
[    2.072793] refcount_t: underflow; use-after-free.
[    2.072848] WARNING: CPU: 3 PID: 270 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    2.072916] Modules linked in: vxlan
[    2.072950] CPU: 3 UID: 0 PID: 270 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    2.073016] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.073065] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    2.073121] 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
[    2.073286] RSP: 0018:ffffaaaac05bf730 EFLAGS: 00010282
[    2.073326] RAX: 0000000000000000 RBX: ffffaaaac05bf740 RCX: 00000000ffffdfff
[    2.073393] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    2.073473] RBP: ffffaaaac05bf238 R08: ffffffff9115ba28 R09: 00000000ffffdfff
[    2.073558] R10: ffffffff9107ba40 R11: ffffffff9112ba40 R12: dead000000000122
[    2.073610] R13: 00000000fffb73aa R14: 0000000000000001 R15: ffff8e00c3264000
[    2.073661] FS:  00007f3fae311800(0000) GS:ffff8e016d511000(0000) knlGS:0000000000000000
[    2.073724] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.073772] CR2: 000055936c13c0c0 CR3: 0000000003ee9003 CR4: 0000000000772ef0
[    2.073824] PKRU: 55555554
[    2.073851] Call Trace:
[    2.073873]  <TASK>
[    2.073893]  netdev_run_todo+0x21a/0x550
[    2.073927]  rtnl_dellink+0x15b/0x350
[    2.073963]  ? virtio_fs_enqueue_req+0x352/0x570
[    2.074007]  ? netdev_run_todo+0x63/0x550
[    2.074038]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    2.074094]  rtnetlink_rcv_msg+0x358/0x400
[    2.074135]  ? get_page_from_freelist+0x15b4/0x1770
[    2.074194]  ? rtnl_calcit.isra.0+0x110/0x110
[    2.074242]  netlink_rcv_skb+0x57/0x100
[    2.074274]  netlink_unicast+0x252/0x380
[    2.074304]  ? __alloc_skb+0xdb/0x190
[    2.074339]  netlink_sendmsg+0x1be/0x3e0
[    2.074370]  ____sys_sendmsg+0x132/0x260
[    2.074401]  ? copy_msghdr_from_user+0x6c/0xa0
[    2.074440]  ___sys_sendmsg+0x87/0xd0
[    2.074465]  ? do_wp_page+0x369/0xe90
[    2.074498]  ? ___pte_offset_map+0x1b/0xd0
[    2.074530]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    2.074571]  ? fsnotify_grab_connector+0x48/0x80
[    2.074616]  ? fsnotify_destroy_marks+0x29/0x150
[    2.074656]  __sys_sendmsg+0x71/0xd0
[    2.074701]  do_syscall_64+0xa4/0xfd0
[    2.074749]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.074804] RIP: 0033:0x7f3fae4df1d7
[    2.074838] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[    2.075032] RSP: 002b:00007ffd225f6a78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    2.075111] RAX: ffffffffffffffda RBX: 00007ffd225f71a0 RCX: 00007f3fae4df1d7
[    2.075179] RDX: 0000000000000000 RSI: 00007ffd225f6ae0 RDI: 0000000000000005
[    2.075225] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[    2.075280] R10: 00007f3fae3dbf60 R11: 0000000000000246 R12: 0000000000000002
[    2.075339] R13: 00000000690df808 R14: 0000000000499600 R15: 0000000000000000
[    2.075387]  </TASK>
[    2.075409] ---[ end trace 0000000000000000 ]---
[    2.075765] ip (270) used greatest stack depth: 11744 bytes left
[   11.191886] br0: port 1(vx10) entered blocking state
[   11.191953] br0: port 1(vx10) entered disabled state
[   11.192013] vx10: entered allmulticast mode
[   11.192084] vx10: entered promiscuous mode
[   11.373132] vx10: left allmulticast mode
[   11.373208] vx10: left promiscuous mode
[   11.373272] br0: port 1(vx10) entered disabled state