[    4.416475] ------------[ cut here ]------------
[    4.416560] refcount_t: underflow; use-after-free.
[    4.416613] WARNING: CPU: 0 PID: 318 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    4.416681] Modules linked in:
[    4.416710] CPU: 0 UID: 0 PID: 318 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    4.416773] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.416822] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    4.416864] 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 75 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
[    4.416992] RSP: 0018:ffffb641c0747730 EFLAGS: 00010282
[    4.417030] RAX: 0000000000000000 RBX: ffffb641c0747740 RCX: 00000000ffffdfff
[    4.417082] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    4.417132] RBP: ffffb641c0747238 R08: ffffffff89f5ba28 R09: 00000000ffffdfff
[    4.417188] R10: ffffffff89e7ba40 R11: ffffffff89f2ba40 R12: dead000000000122
[    4.417239] R13: 00000000fffb7ce0 R14: 0000000000000001 R15: ffff8c8082d61000
[    4.417290] FS:  00007f091ec9d800(0000) GS:ffff8c8134591000(0000) knlGS:0000000000000000
[    4.417346] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.417397] CR2: 000055630a6e2148 CR3: 0000000006eb1006 CR4: 0000000000772ef0
[    4.417457] PKRU: 55555554
[    4.417481] Call Trace:
[    4.417505]  <TASK>
[    4.417526]  netdev_run_todo+0x21a/0x550
[    4.417560]  rtnl_dellink+0x15b/0x350
[    4.417595]  ? virtio_fs_enqueue_req+0x352/0x570
[    4.417638]  ? netdev_run_todo+0x63/0x550
[    4.417663]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    4.417697]  rtnetlink_rcv_msg+0x358/0x400
[    4.417729]  ? get_page_from_freelist+0x15b4/0x1770
[    4.417767]  ? rtnl_calcit.isra.0+0x110/0x110
[    4.417807]  netlink_rcv_skb+0x57/0x100
[    4.417845]  netlink_unicast+0x252/0x380
[    4.417875]  ? __alloc_skb+0xdb/0x190
[    4.417906]  netlink_sendmsg+0x1be/0x3e0
[    4.417931]  ____sys_sendmsg+0x132/0x260
[    4.417966]  ? copy_msghdr_from_user+0x6c/0xa0
[    4.418004]  ___sys_sendmsg+0x87/0xd0
[    4.418032]  ? do_wp_page+0x369/0xe90
[    4.418068]  ? ___pte_offset_map+0x1b/0xd0
[    4.418104]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    4.418145]  ? fsnotify_grab_connector+0x48/0x80
[    4.418186]  ? fsnotify_destroy_marks+0x29/0x150
[    4.418226]  __sys_sendmsg+0x71/0xd0
[    4.418257]  do_syscall_64+0xa4/0xfd0
[    4.418287]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    4.418325] RIP: 0033:0x7f091ee6b1d7
[    4.418352] 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
[    4.418484] RSP: 002b:00007ffdebd78298 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    4.418543] RAX: ffffffffffffffda RBX: 00007ffdebd789c0 RCX: 00007f091ee6b1d7
[    4.418594] RDX: 0000000000000000 RSI: 00007ffdebd78300 RDI: 0000000000000005
[    4.418645] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[    4.418695] R10: 00007f091ed67f60 R11: 0000000000000246 R12: 0000000000000002
[    4.418744] R13: 00000000690de915 R14: 0000000000499600 R15: 0000000000000000
[    4.418795]  </TASK>
[    4.418817] ---[ end trace 0000000000000000 ]---
[    4.419361] ip (318) used greatest stack depth: 11744 bytes left
[    4.483769] br: port 1(vx) entered blocking state
[    4.483902] br: port 1(vx) entered disabled state
[    4.484012] vx: entered allmulticast mode
[    4.484139] vx: entered promiscuous mode
[    4.484238] br: port 1(vx) entered blocking state
[    4.484343] br: port 1(vx) entered forwarding state
[    6.649914] vx: left allmulticast mode
[    6.649975] vx: left promiscuous mode
[    6.650019] br: port 1(vx) entered disabled state
[    6.762123] br: port 1(vx) entered blocking state
[    6.762202] br: port 1(vx) entered disabled state
[    6.762267] vx: entered allmulticast mode
[    6.762342] vx: entered promiscuous mode
[    6.762398] br: port 1(vx) entered blocking state
[    6.762462] br: port 1(vx) entered forwarding state
[    8.938555] vx: left allmulticast mode
[    8.938673] vx: left promiscuous mode
[    8.938741] br: port 1(vx) entered disabled state
[    9.041499] dd: entered promiscuous mode
[   11.213142] dd: left promiscuous mode
[   11.311683] dd: entered promiscuous mode
[   11.328357] br: port 1(mv) entered blocking state
[   11.328461] br: port 1(mv) entered disabled state
[   11.328548] mv: entered allmulticast mode
[   11.328664] dd: entered allmulticast mode
[   11.328832] br: port 1(mv) entered blocking state
[   11.328956] br: port 1(mv) entered forwarding state
[   13.504293] mv: left allmulticast mode
[   13.504353] dd: left allmulticast mode
[   13.504391] br: port 1(mv) entered disabled state
[   13.519574] dd: left promiscuous mode