[ 2.158207] ip (248) used greatest stack depth: 12296 bytes left [ 3.045915] 8021q: 802.1Q VLAN Support v1.8 [ 3.109436] gre: GRE over IPv4 demultiplexer driver [ 3.116433] ip6_gre: GRE over IPv6 tunneling driver [ 3.132420] ip (355) used greatest stack depth: 12104 bytes left [ 8.807950] GACT probability NOT on [ 8.809211] tc (431) used greatest stack depth: 11840 bytes left [ 11.631740] ------------[ cut here ]------------ [ 11.631852] refcount_t: underflow; use-after-free. [ 11.631913] WARNING: CPU: 0 PID: 648 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 11.631978] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth [ 11.632063] CPU: 0 UID: 0 PID: 648 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 11.632129] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.632176] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 11.632216] 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 51 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 [ 11.632338] RSP: 0018:ffffa8f680d13730 EFLAGS: 00010282 [ 11.632375] RAX: 0000000000000000 RBX: ffffa8f680d13740 RCX: 00000000ffffdfff [ 11.632430] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 11.632481] RBP: ffff953947017000 R08: ffffffff99956a28 R09: 00000000ffffdfff [ 11.632545] R10: ffffffff99876a40 R11: ffffffff99926a40 R12: 0000000000000001 [ 11.632603] R13: 00000000fffb98f3 R14: 0000000000000001 R15: ffff953947017000 [ 11.632654] FS: 00007f8f453c6800(0000) GS:ffff9539e4bd9000(0000) knlGS:0000000000000000 [ 11.632722] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.632770] CR2: 00000000004e7430 CR3: 000000000715a006 CR4: 0000000000772ef0 [ 11.632823] PKRU: 55555554 [ 11.632846] Call Trace: [ 11.632865] [ 11.632886] netdev_run_todo+0x21a/0x550 [ 11.632927] rtnl_dellink+0x15b/0x350 [ 11.632964] ? virtio_fs_enqueue_req+0x352/0x570 [ 11.633007] ? netdev_run_todo+0x63/0x550 [ 11.633039] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 11.633079] rtnetlink_rcv_msg+0x358/0x400 [ 11.633110] ? get_page_from_freelist+0x15b4/0x1770 [ 11.633152] ? rtnl_calcit.isra.0+0x110/0x110 [ 11.633191] netlink_rcv_skb+0x57/0x100 [ 11.633224] netlink_unicast+0x252/0x380 [ 11.633253] ? __alloc_skb+0xdb/0x190 [ 11.633284] netlink_sendmsg+0x1be/0x3e0 [ 11.633316] ____sys_sendmsg+0x132/0x260 [ 11.633352] ? copy_msghdr_from_user+0x6c/0xa0 [ 11.633390] ___sys_sendmsg+0x87/0xd0 [ 11.633420] ? do_wp_page+0x369/0xe90 [ 11.633451] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 11.633490] ? fsnotify_grab_connector+0x48/0x80 [ 11.633538] ? fsnotify_destroy_marks+0x29/0x150 [ 11.633578] __sys_sendmsg+0x71/0xd0 [ 11.633610] do_syscall_64+0xa4/0xfd0 [ 11.633642] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.633679] RIP: 0033:0x7f8f455941d7 [ 11.633719] 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 [ 11.633853] RSP: 002b:00007ffcdac0e978 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.633910] RAX: ffffffffffffffda RBX: 00007ffcdac0f0a0 RCX: 00007f8f455941d7 [ 11.633960] RDX: 0000000000000000 RSI: 00007ffcdac0e9e0 RDI: 0000000000000005 [ 11.634016] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 11.634071] R10: 00007f8f45490f60 R11: 0000000000000246 R12: 0000000000000002 [ 11.634125] R13: 00000000690dee41 R14: 0000000000499600 R15: 0000000000000000 [ 11.634182] [ 11.634204] ---[ end trace 0000000000000000 ]--- [ 11.634764] ip (648) used greatest stack depth: 11744 bytes left