[ 2.665857] 8021q: 802.1Q VLAN Support v1.8 [ 2.708799] gre: GRE over IPv4 demultiplexer driver [ 2.710731] ip_gre: GRE over IPv4 tunneling driver [ 15.309145] ------------[ cut here ]------------ [ 15.309236] refcount_t: underflow; use-after-free. [ 15.309332] WARNING: CPU: 2 PID: 406 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 15.309435] Modules linked in: ip_gre gre 8021q vrf veth [ 15.309513] CPU: 2 UID: 0 PID: 406 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 15.309624] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.309708] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 15.309781] Code: a3 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 31 a3 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 [ 15.309966] RSP: 0018:ffffaee240967730 EFLAGS: 00010282 [ 15.310039] RAX: 0000000000000000 RBX: ffffaee240967740 RCX: 00000000ffffdfff [ 15.310126] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 15.310221] RBP: ffffaee240967248 R08: ffffffffa3756a28 R09: 00000000ffffdfff [ 15.310314] R10: ffffffffa3676a40 R11: ffffffffa3726a40 R12: dead000000000122 [ 15.310408] R13: 00000000fffba769 R14: 0000000000000001 R15: ffff903603c21000 [ 15.310503] FS: 00007f7b4e4a3800(0000) GS:ffff90369aed9000(0000) knlGS:0000000000000000 [ 15.310600] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 15.310685] CR2: 00000000004e7410 CR3: 0000000003efc001 CR4: 0000000000772ef0 [ 15.310782] PKRU: 55555554 [ 15.310830] Call Trace: [ 15.310880] [ 15.310928] netdev_run_todo+0x21a/0x550 [ 15.310996] rtnl_dellink+0x15b/0x350 [ 15.311061] ? virtio_fs_enqueue_req+0x352/0x570 [ 15.311141] ? netdev_run_todo+0x63/0x550 [ 15.311203] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 15.311276] rtnetlink_rcv_msg+0x358/0x400 [ 15.311338] ? get_page_from_freelist+0x15b4/0x1770 [ 15.311413] ? rtnl_calcit.isra.0+0x110/0x110 [ 15.311486] netlink_rcv_skb+0x57/0x100 [ 15.311551] netlink_unicast+0x252/0x380 [ 15.311616] ? __alloc_skb+0xdb/0x190 [ 15.311677] netlink_sendmsg+0x1be/0x3e0 [ 15.311737] ____sys_sendmsg+0x132/0x260 [ 15.311799] ? copy_msghdr_from_user+0x6c/0xa0 [ 15.311864] ___sys_sendmsg+0x87/0xd0 [ 15.311922] ? do_wp_page+0x369/0xe90 [ 15.311981] ? ___pte_offset_map+0x1b/0xd0 [ 15.312037] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 15.312115] ? fsnotify_grab_connector+0x48/0x80 [ 15.312184] ? fsnotify_destroy_marks+0x29/0x150 [ 15.312250] __sys_sendmsg+0x71/0xd0 [ 15.312307] do_syscall_64+0xa4/0xfd0 [ 15.312367] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 15.312433] RIP: 0033:0x7f7b4e6711d7 [ 15.312473] 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 [ 15.312667] RSP: 002b:00007fff72bcb448 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 15.312760] RAX: ffffffffffffffda RBX: 00007fff72bcbb70 RCX: 00007f7b4e6711d7 [ 15.312848] RDX: 0000000000000000 RSI: 00007fff72bcb4b0 RDI: 0000000000000005 [ 15.312939] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 15.313033] R10: 00007f7b4e56df60 R11: 0000000000000246 R12: 0000000000000002 [ 15.313127] R13: 00000000690dedd7 R14: 0000000000499600 R15: 0000000000000000 [ 15.313218] [ 15.313263] ---[ end trace 0000000000000000 ]--- [ 15.313781] ip (406) used greatest stack depth: 11744 bytes left