[    2.466251] br1: port 1(veth1) entered blocking state
[    2.466324] br1: port 1(veth1) entered disabled state
[    2.466384] veth1: entered allmulticast mode
[    2.466459] veth1: entered promiscuous mode
[    2.491847] br1: port 1(veth1) entered blocking state
[    2.491953] br1: port 1(veth1) entered forwarding state
[    2.505083] br1: port 2(veth2) entered blocking state
[    2.505186] br1: port 2(veth2) entered disabled state
[    2.505288] veth2: entered allmulticast mode
[    2.505415] veth2: entered promiscuous mode
[    2.530010] br1: port 2(veth2) entered blocking state
[    2.530094] br1: port 2(veth2) entered forwarding state
[   20.218488] br1: port 2(veth2) entered disabled state
[   20.233597] veth2: left allmulticast mode
[   20.233702] veth2: left promiscuous mode
[   20.233767] br1: port 2(veth2) entered disabled state
[   20.248409] br1: port 1(veth1) entered disabled state
[   20.262276] veth1: left allmulticast mode
[   20.262380] veth1: left promiscuous mode
[   20.262442] br1: port 1(veth1) entered disabled state
[   20.308007] ------------[ cut here ]------------
[   20.308091] refcount_t: underflow; use-after-free.
[   20.308155] WARNING: CPU: 0 PID: 835 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   20.308223] Modules linked in: bridge stp llc vrf veth
[   20.308330] CPU: 0 UID: 0 PID: 835 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   20.308431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.308498] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   20.308558] Code: 8c e8 18 df ba ff 90 0f 0b 90 90 c3 80 3d f9 da eb 00 00 75 89 c6 05 f0 da eb 00 01 90 48 c7 c7 28 e0 f1 8c e8 f5 de ba ff 90 <0f> 0b 90 90 c3 80 3d d4 da eb 00 00 0f 85 62 ff ff ff c6 05 c7 da
[   20.308756] RSP: 0018:ffffbb2240c57730 EFLAGS: 00010282
[   20.308817] RAX: 0000000000000000 RBX: ffffbb2240c57740 RCX: 00000000ffffdfff
[   20.308892] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   20.308998] RBP: ffffbb2240c57248 R08: ffffffff8d356a28 R09: 00000000ffffdfff
[   20.309086] R10: ffffffff8d276a40 R11: ffffffff8d326a40 R12: dead000000000122
[   20.309168] R13: 00000000fffbbadc R14: 0000000000000001 R15: ffff98a5c55d3000
[   20.309251] FS:  00007f18234c5800(0000) GS:ffff98a6711d9000(0000) knlGS:0000000000000000
[   20.309342] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.309405] CR2: 00000000004e68d0 CR3: 000000000788b001 CR4: 0000000000772ef0
[   20.309488] PKRU: 55555554
[   20.309521] Call Trace:
[   20.309551]  <TASK>
[   20.309582]  netdev_run_todo+0x21a/0x550
[   20.309640]  rtnl_dellink+0x15b/0x350
[   20.309697]  ? virtio_fs_enqueue_req+0x352/0x570
[   20.309761]  ? netdev_run_todo+0x63/0x550
[   20.309811]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[   20.309874]  rtnetlink_rcv_msg+0x358/0x400
[   20.309927]  ? get_page_from_freelist+0x15b4/0x1770
[   20.309990]  ? rtnl_calcit.isra.0+0x110/0x110
[   20.310056]  netlink_rcv_skb+0x57/0x100
[   20.310108]  netlink_unicast+0x252/0x380
[   20.310157]  ? __alloc_skb+0xdb/0x190
[   20.310207]  netlink_sendmsg+0x1be/0x3e0
[   20.310256]  ____sys_sendmsg+0x132/0x260
[   20.310311]  ? copy_msghdr_from_user+0x6c/0xa0
[   20.310374]  ___sys_sendmsg+0x87/0xd0
[   20.310420]  ? do_wp_page+0x369/0xe90
[   20.310473]  ? ___pte_offset_map+0x1b/0xd0
[   20.310526]  ? nfulnl_rcv_nl_event+0x36/0xa0
[   20.310592]  ? fsnotify_grab_connector+0x48/0x80
[   20.310655]  ? fsnotify_destroy_marks+0x29/0x150
[   20.310721]  __sys_sendmsg+0x71/0xd0
[   20.310771]  do_syscall_64+0xa4/0xfd0
[   20.310819]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   20.310884] RIP: 0033:0x7f18236931d7
[   20.310931] 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
[   20.311136] RSP: 002b:00007ffc1bc76c28 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.311221] RAX: ffffffffffffffda RBX: 00007ffc1bc77350 RCX: 00007f18236931d7
[   20.311305] RDX: 0000000000000000 RSI: 00007ffc1bc76c90 RDI: 0000000000000005
[   20.311388] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   20.311468] R10: 00007f182358ff60 R11: 0000000000000246 R12: 0000000000000002
[   20.311549] R13: 00000000690de75a R14: 0000000000499600 R15: 0000000000000000
[   20.311601]  </TASK>
[   20.311635] ---[ end trace 0000000000000000 ]---
[   20.312295] ip (835) used greatest stack depth: 11744 bytes left