[ 2.583667] gre: GRE over IPv4 demultiplexer driver [ 2.585133] ip_gre: GRE over IPv4 tunneling driver [ 2.779184] 8021q: 802.1Q VLAN Support v1.8 [ 3.185330] GACT probability NOT on [ 3.186983] tc (374) used greatest stack depth: 11840 bytes left [ 173.919995] ------------[ cut here ]------------ [ 173.920198] refcount_t: underflow; use-after-free. [ 173.920281] WARNING: CPU: 3 PID: 17273 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 173.920409] Modules linked in: act_gact cls_flower sch_ingress 8021q ip_gre gre vrf veth [ 173.920503] CPU: 3 UID: 0 PID: 17273 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 173.920633] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 173.920694] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 173.920748] 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 11 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 [ 173.920992] RSP: 0018:ffffbfd900a27730 EFLAGS: 00010282 [ 173.921046] RAX: 0000000000000000 RBX: ffffbfd900a27740 RCX: 00000000ffffdfff [ 173.921141] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 173.921221] RBP: ffffbfd900a27248 R08: ffffffff8c556a28 R09: 00000000ffffdfff [ 173.921303] R10: ffffffff8c476a40 R11: ffffffff8c526a40 R12: dead000000000122 [ 173.921387] R13: 00000000fffe12fe R14: 0000000000000001 R15: ffffa0c782029000 [ 173.921473] FS: 00007ff1bce12800(0000) GS:ffffa0c832159000(0000) knlGS:0000000000000000 [ 173.921557] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 173.921631] CR2: 00000000004e7458 CR3: 000000000ad29004 CR4: 0000000000772ef0 [ 173.921712] PKRU: 55555554 [ 173.921750] Call Trace: [ 173.921783] [ 173.921818] netdev_run_todo+0x21a/0x550 [ 173.921881] rtnl_dellink+0x15b/0x350 [ 173.921931] ? virtio_fs_enqueue_req+0x352/0x570 [ 173.922002] ? netdev_run_todo+0x63/0x550 [ 173.922047] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 173.922100] rtnetlink_rcv_msg+0x358/0x400 [ 173.922145] ? get_page_from_freelist+0x15b4/0x1770 [ 173.922213] ? rtnl_calcit.isra.0+0x110/0x110 [ 173.922268] netlink_rcv_skb+0x57/0x100 [ 173.922318] netlink_unicast+0x252/0x380 [ 173.922357] ? __alloc_skb+0xdb/0x190 [ 173.922404] netlink_sendmsg+0x1be/0x3e0 [ 173.922446] ____sys_sendmsg+0x132/0x260 [ 173.922501] ? copy_msghdr_from_user+0x6c/0xa0 [ 173.922549] ___sys_sendmsg+0x87/0xd0 [ 173.922588] ? do_wp_page+0x369/0xe90 [ 173.922634] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 173.922693] ? fsnotify_grab_connector+0x48/0x80 [ 173.922749] ? fsnotify_destroy_marks+0x29/0x150 [ 173.922796] __sys_sendmsg+0x71/0xd0 [ 173.922839] do_syscall_64+0xa4/0xfd0 [ 173.922888] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 173.922938] RIP: 0033:0x7ff1bcfe01d7 [ 173.923007] 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 [ 173.923180] RSP: 002b:00007ffc7d404778 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 173.923249] RAX: ffffffffffffffda RBX: 00007ffc7d404ea0 RCX: 00007ff1bcfe01d7 [ 173.923326] RDX: 0000000000000000 RSI: 00007ffc7d4047e0 RDI: 0000000000000005 [ 173.923399] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 173.923462] R10: 00007ff1bcedcf60 R11: 0000000000000246 R12: 0000000000000002 [ 173.923540] R13: 00000000690deacf R14: 0000000000499600 R15: 0000000000000000 [ 173.923608] [ 173.923631] ---[ end trace 0000000000000000 ]--- [ 173.924400] ip (17273) used greatest stack depth: 11744 bytes left