[    2.768534] gre: GRE over IPv4 demultiplexer driver
[    2.771728] ip_gre: GRE over IPv4 tunneling driver
[    2.993239] 8021q: 802.1Q VLAN Support v1.8
[    3.397817] GACT probability NOT on
[    3.399094] tc (373) used greatest stack depth: 11840 bytes left
[   17.087314] ------------[ cut here ]------------
[   17.087479] refcount_t: underflow; use-after-free.
[   17.087567] WARNING: CPU: 2 PID: 566 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[   17.087655] Modules linked in: act_gact cls_flower sch_ingress 8021q ip_gre gre vrf veth
[   17.087742] CPU: 2 UID: 0 PID: 566 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[   17.087828] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.087908] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[   17.087971] Code: 99 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 11 99 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
[   17.088112] RSP: 0018:ffffaddcc0b6f730 EFLAGS: 00010282
[   17.088173] RAX: 0000000000000000 RBX: ffffaddcc0b6f740 RCX: 00000000ffffdfff
[   17.088252] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[   17.088335] RBP: ffffaddcc0b6f248 R08: ffffffff99556a28 R09: 00000000ffffdfff
[   17.088409] R10: ffffffff99476a40 R11: ffffffff99526a40 R12: dead000000000122
[   17.088479] R13: 00000000fffbae51 R14: 0000000000000001 R15: ffff9612043fb000
[   17.088550] FS:  00007fe43abc6800(0000) GS:ffff9612a50d9000(0000) knlGS:0000000000000000
[   17.088622] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.088683] CR2: 00000000004e7458 CR3: 0000000001b20004 CR4: 0000000000772ef0
[   17.088754] PKRU: 55555554
[   17.088793] Call Trace:
[   17.088835]  <TASK>
[   17.088874]  netdev_run_todo+0x21a/0x550
[   17.088931]  rtnl_dellink+0x15b/0x350
[   17.088984]  ? virtio_fs_enqueue_req+0x352/0x570
[   17.089067]  ? netdev_run_todo+0x63/0x550
[   17.089118]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[   17.089173]  rtnetlink_rcv_msg+0x358/0x400
[   17.089226]  ? get_page_from_freelist+0x15b4/0x1770
[   17.089290]  ? rtnl_calcit.isra.0+0x110/0x110
[   17.089349]  netlink_rcv_skb+0x57/0x100
[   17.089402]  netlink_unicast+0x252/0x380
[   17.089450]  ? __alloc_skb+0xdb/0x190
[   17.089500]  netlink_sendmsg+0x1be/0x3e0
[   17.089549]  ____sys_sendmsg+0x132/0x260
[   17.089605]  ? copy_msghdr_from_user+0x6c/0xa0
[   17.089662]  ___sys_sendmsg+0x87/0xd0
[   17.089711]  ? do_wp_page+0x369/0xe90
[   17.089762]  ? ___pte_offset_map+0x1b/0xd0
[   17.089811]  ? nfulnl_rcv_nl_event+0x36/0xa0
[   17.089870]  ? fsnotify_grab_connector+0x48/0x80
[   17.089929]  ? fsnotify_destroy_marks+0x29/0x150
[   17.089985]  __sys_sendmsg+0x71/0xd0
[   17.090034]  do_syscall_64+0xa4/0xfd0
[   17.090093]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   17.090150] RIP: 0033:0x7fe43ad941d7
[   17.090202] 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
[   17.090337] RSP: 002b:00007ffeff6af3a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   17.090407] RAX: ffffffffffffffda RBX: 00007ffeff6afad0 RCX: 00007fe43ad941d7
[   17.090476] RDX: 0000000000000000 RSI: 00007ffeff6af410 RDI: 0000000000000005
[   17.090545] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   17.090615] R10: 00007fe43ac90f60 R11: 0000000000000246 R12: 0000000000000002
[   17.090684] R13: 00000000690dedb3 R14: 0000000000499600 R15: 0000000000000000
[   17.090753]  </TASK>
[   17.090792] ---[ end trace 0000000000000000 ]---
[   17.091417] ip (566) used greatest stack depth: 11744 bytes left