[ 2.721549] gre: GRE over IPv4 demultiplexer driver [ 2.726784] ip6_gre: GRE over IPv6 tunneling driver [ 2.743219] ip6_tunnel: g1 xmit: Local address not yet configured! [ 2.758291] ip6_tunnel: g1 xmit: Local address not yet configured! [ 2.939644] 8021q: 802.1Q VLAN Support v1.8 [ 3.335045] GACT probability NOT on [ 3.496725] ip6_tunnel: g2 xmit: Local address not yet configured! [ 3.508124] ip6_tunnel: g2 xmit: Local address not yet configured! [ 18.158749] ------------[ cut here ]------------ [ 18.158858] refcount_t: underflow; use-after-free. [ 18.158922] WARNING: CPU: 3 PID: 563 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 18.159011] Modules linked in: act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth [ 18.159145] CPU: 3 UID: 0 PID: 563 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 18.159248] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.159315] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 18.159368] Code: aa 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 91 aa 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 [ 18.159569] RSP: 0018:ffffac8780bb7730 EFLAGS: 00010282 [ 18.159622] RAX: 0000000000000000 RBX: ffffac8780bb7740 RCX: 00000000ffffdfff [ 18.159711] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 18.159805] RBP: ffffac8780bb7248 R08: ffffffffaad56a28 R09: 00000000ffffdfff [ 18.159896] R10: ffffffffaac76a40 R11: ffffffffaad26a40 R12: dead000000000122 [ 18.159979] R13: 00000000fffbb27f R14: 0000000000000001 R15: ffff943408673000 [ 18.160064] FS: 00007f1083960800(0000) GS:ffff943493959000(0000) knlGS:0000000000000000 [ 18.160151] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.160220] CR2: 000056347cc74ab0 CR3: 000000000a36a001 CR4: 0000000000772ef0 [ 18.160307] PKRU: 55555554 [ 18.160334] Call Trace: [ 18.160362] [ 18.160391] netdev_run_todo+0x21a/0x550 [ 18.160442] rtnl_dellink+0x15b/0x350 [ 18.160495] ? virtio_fs_enqueue_req+0x352/0x570 [ 18.160563] ? netdev_run_todo+0x63/0x550 [ 18.160613] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 18.160677] rtnetlink_rcv_msg+0x358/0x400 [ 18.160723] ? get_page_from_freelist+0x15b4/0x1770 [ 18.160789] ? rtnl_calcit.isra.0+0x110/0x110 [ 18.160846] netlink_rcv_skb+0x57/0x100 [ 18.160897] netlink_unicast+0x252/0x380 [ 18.160935] ? __alloc_skb+0xdb/0x190 [ 18.160984] netlink_sendmsg+0x1be/0x3e0 [ 18.161028] ____sys_sendmsg+0x132/0x260 [ 18.161076] ? copy_msghdr_from_user+0x6c/0xa0 [ 18.161140] ___sys_sendmsg+0x87/0xd0 [ 18.161180] ? do_wp_page+0x369/0xe90 [ 18.161229] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 18.161294] ? fsnotify_grab_connector+0x48/0x80 [ 18.161360] ? fsnotify_destroy_marks+0x29/0x150 [ 18.161415] __sys_sendmsg+0x71/0xd0 [ 18.161456] do_syscall_64+0xa4/0xfd0 [ 18.161503] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 18.161557] RIP: 0033:0x7f1083b2e1d7 [ 18.161605] 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 [ 18.161800] RSP: 002b:00007fff6fc88798 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 18.161880] RAX: ffffffffffffffda RBX: 00007fff6fc88ec0 RCX: 00007f1083b2e1d7 [ 18.161928] RDX: 0000000000000000 RSI: 00007fff6fc88800 RDI: 0000000000000005 [ 18.161984] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 18.162035] R10: 00007f1083a2af60 R11: 0000000000000246 R12: 0000000000000002 [ 18.162102] R13: 00000000690dedb0 R14: 0000000000499600 R15: 0000000000000000 [ 18.162154] [ 18.162176] ---[ end trace 0000000000000000 ]--- [ 18.162796] ip (563) used greatest stack depth: 11744 bytes left