[    4.067141] ------------[ cut here ]------------
[    4.067196] refcount_t: underflow; use-after-free.
[    4.067249] WARNING: CPU: 3 PID: 319 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    4.067314] Modules linked in:
[    4.067351] CPU: 3 UID: 0 PID: 319 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    4.067418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    4.067458] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    4.067496] Code: 99 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 b5 99 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
[    4.067611] RSP: 0018:ffffa009c079f730 EFLAGS: 00010282
[    4.067649] RAX: 0000000000000000 RBX: ffffa009c079f740 RCX: 00000000ffffdfff
[    4.067703] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    4.067750] RBP: ffffa009c079f238 R08: ffffffff9a35ba28 R09: 00000000ffffdfff
[    4.067797] R10: ffffffff9a27ba40 R11: ffffffff9a32ba40 R12: dead000000000122
[    4.067844] R13: 00000000fffb7b81 R14: 0000000000000001 R15: ffff90df41133000
[    4.067898] FS:  00007f3fb8b0f800(0000) GS:ffff90dfe4311000(0000) knlGS:0000000000000000
[    4.067951] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    4.067995] CR2: 00000000004e6e48 CR3: 0000000005ded003 CR4: 0000000000772ef0
[    4.068044] PKRU: 55555554
[    4.068064] Call Trace:
[    4.068081]  <TASK>
[    4.068101]  netdev_run_todo+0x21a/0x550
[    4.068136]  rtnl_dellink+0x15b/0x350
[    4.068171]  ? __rmqueue_pcplist+0x895/0xb90
[    4.068210]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    4.068247]  rtnetlink_rcv_msg+0x358/0x400
[    4.068277]  ? get_page_from_freelist+0x15b4/0x1770
[    4.068320]  ? rtnl_calcit.isra.0+0x110/0x110
[    4.068355]  netlink_rcv_skb+0x57/0x100
[    4.068386]  netlink_unicast+0x252/0x380
[    4.068414]  ? __alloc_skb+0xdb/0x190
[    4.068444]  netlink_sendmsg+0x1be/0x3e0
[    4.068474]  ____sys_sendmsg+0x132/0x260
[    4.068504]  ? copy_msghdr_from_user+0x6c/0xa0
[    4.068543]  ___sys_sendmsg+0x87/0xd0
[    4.068566]  ? do_wp_page+0x369/0xe90
[    4.068595]  ? ___pte_offset_map+0x1b/0xd0
[    4.068626]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    4.068663]  ? fsnotify_grab_connector+0x48/0x80
[    4.068705]  ? fsnotify_destroy_marks+0x29/0x150
[    4.068742]  __sys_sendmsg+0x71/0xd0
[    4.068772]  do_syscall_64+0xa4/0xfd0
[    4.068802]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    4.068840] RIP: 0033:0x7f3fb8cdd1d7
[    4.068870] 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
[    4.068983] RSP: 002b:00007ffe7a881db8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    4.069035] RAX: ffffffffffffffda RBX: 00007ffe7a8824e0 RCX: 00007f3fb8cdd1d7
[    4.069080] RDX: 0000000000000000 RSI: 00007ffe7a881e20 RDI: 0000000000000005
[    4.069133] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[    4.069186] R10: 00007f3fb8bd9f60 R11: 0000000000000246 R12: 0000000000000002
[    4.069238] R13: 00000000690df7b7 R14: 0000000000499600 R15: 0000000000000000
[    4.069283]  </TASK>
[    4.069298] ---[ end trace 0000000000000000 ]---
[    4.069740] ip (319) used greatest stack depth: 11744 bytes left
[    4.123524] br: port 1(vx) entered blocking state
[    4.123584] br: port 1(vx) entered disabled state
[    4.123640] vx: entered allmulticast mode
[    4.123712] vx: entered promiscuous mode
[    4.123759] br: port 1(vx) entered blocking state
[    4.123797] br: port 1(vx) entered forwarding state
[    6.265312] vx: left allmulticast mode
[    6.265369] vx: left promiscuous mode
[    6.265413] br: port 1(vx) entered disabled state
[    6.359801] br: port 1(vx) entered blocking state
[    6.359890] br: port 1(vx) entered disabled state
[    6.359979] vx: entered allmulticast mode
[    6.360069] vx: entered promiscuous mode
[    6.360279] br: port 1(vx) entered blocking state
[    6.360367] br: port 1(vx) entered forwarding state
[    8.499124] vx: left allmulticast mode
[    8.499218] vx: left promiscuous mode
[    8.499274] br: port 1(vx) entered disabled state
[    8.579858] dd: entered promiscuous mode
[   10.721046] dd: left promiscuous mode
[   10.793850] dd: entered promiscuous mode
[   10.807260] br: port 1(mv) entered blocking state
[   10.807343] br: port 1(mv) entered disabled state
[   10.807409] mv: entered allmulticast mode
[   10.807450] dd: entered allmulticast mode
[   10.807535] br: port 1(mv) entered blocking state
[   10.807591] br: port 1(mv) entered forwarding state
[   12.954295] mv: left allmulticast mode
[   12.954351] dd: left allmulticast mode
[   12.954413] br: port 1(mv) entered disabled state
[   12.966579] dd: left promiscuous mode