[    2.102853] gre: GRE over IPv4 demultiplexer driver
[    2.105361] ip_gre: GRE over IPv4 tunneling driver
[    2.265763] ------------[ cut here ]------------
[    2.265861] refcount_t: underflow; use-after-free.
[    2.265923] WARNING: CPU: 0 PID: 286 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110
[    2.265984] Modules linked in: ip_gre gre
[    2.266017] CPU: 0 UID: 0 PID: 286 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) 
[    2.266079] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    2.266119] RIP: 0010:refcount_warn_saturate+0xbc/0x110
[    2.266164] Code: aa 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 55 aa 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
[    2.266281] RSP: 0018:ffffa4fa80313730 EFLAGS: 00010282
[    2.266330] RAX: 0000000000000000 RBX: ffffa4fa80313740 RCX: 00000000ffffdfff
[    2.266378] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    2.266425] RBP: ffffa4fa80313238 R08: ffffffffaad5ba28 R09: 00000000ffffdfff
[    2.266479] R10: ffffffffaac7ba40 R11: ffffffffaad2ba40 R12: dead000000000122
[    2.266538] R13: 00000000fffb747a R14: 0000000000000001 R15: ffff917b01f3f000
[    2.266595] FS:  00007f75d7cd1800(0000) GS:ffff917b93791000(0000) knlGS:0000000000000000
[    2.266649] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    2.266694] CR2: 00000000004e6798 CR3: 0000000005dc3003 CR4: 0000000000772ef0
[    2.266749] PKRU: 55555554
[    2.266772] Call Trace:
[    2.266790]  <TASK>
[    2.266811]  netdev_run_todo+0x21a/0x550
[    2.266843]  rtnl_dellink+0x15b/0x350
[    2.266879]  ? virtio_fs_enqueue_req+0x352/0x570
[    2.266920]  ? netdev_run_todo+0x63/0x550
[    2.266944]  ? rtnl_bridge_getlink+0x1a0/0x1a0
[    2.266983]  rtnetlink_rcv_msg+0x358/0x400
[    2.267014]  ? get_page_from_freelist+0x15b4/0x1770
[    2.267053]  ? rtnl_calcit.isra.0+0x110/0x110
[    2.267091]  netlink_rcv_skb+0x57/0x100
[    2.267123]  netlink_unicast+0x252/0x380
[    2.267154]  ? __alloc_skb+0xdb/0x190
[    2.267184]  netlink_sendmsg+0x1be/0x3e0
[    2.267215]  ____sys_sendmsg+0x132/0x260
[    2.267247]  ? copy_msghdr_from_user+0x6c/0xa0
[    2.267285]  ___sys_sendmsg+0x87/0xd0
[    2.267316]  ? do_wp_page+0x369/0xe90
[    2.267347]  ? ___pte_offset_map+0x1b/0xd0
[    2.267379]  ? nfulnl_rcv_nl_event+0x36/0xa0
[    2.267422]  ? fsnotify_grab_connector+0x48/0x80
[    2.267460]  ? fsnotify_destroy_marks+0x29/0x150
[    2.267499]  __sys_sendmsg+0x71/0xd0
[    2.267529]  do_syscall_64+0xa4/0xfd0
[    2.267572]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[    2.267610] RIP: 0033:0x7f75d7e9f1d7
[    2.267642] 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
[    2.267767] RSP: 002b:00007ffc0359afe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[    2.267834] RAX: ffffffffffffffda RBX: 00007ffc0359b720 RCX: 00007f75d7e9f1d7
[    2.267887] RDX: 0000000000000000 RSI: 00007ffc0359b050 RDI: 0000000000000005
[    2.267936] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[    2.267993] R10: 00007f75d7d9b510 R11: 0000000000000246 R12: 0000000000000002
[    2.268043] R13: 00000000690de9b2 R14: 0000000000499600 R15: 0000000000000000
[    2.268093]  </TASK>
[    2.268118] ---[ end trace 0000000000000000 ]---
[    2.268778] ip (286) used greatest stack depth: 11744 bytes left
[    6.307888] ip6_gre: GRE over IPv6 tunneling driver