[ 2.022185] ip (247) used greatest stack depth: 12424 bytes left [ 2.203309] ip (274) used greatest stack depth: 12344 bytes left [ 2.615561] gre: GRE over IPv4 demultiplexer driver [ 2.621333] ip6_gre: GRE over IPv6 tunneling driver [ 2.639588] ip6_tunnel: g1 xmit: Local address not yet configured! [ 2.655414] ip6_tunnel: g1 xmit: Local address not yet configured! [ 2.837612] 8021q: 802.1Q VLAN Support v1.8 [ 3.264278] GACT probability NOT on [ 3.265644] tc (370) used greatest stack depth: 11840 bytes left [ 3.437897] ip6_tunnel: g2 xmit: Local address not yet configured! [ 3.450784] ip6_tunnel: g2 xmit: Local address not yet configured! [ 16.952901] ------------[ cut here ]------------ [ 16.953009] refcount_t: underflow; use-after-free. [ 16.953067] WARNING: CPU: 3 PID: 563 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 16.953135] Modules linked in: act_gact cls_flower sch_ingress 8021q ip6_gre ip6_tunnel tunnel6 gre vrf veth [ 16.953223] CPU: 3 UID: 0 PID: 563 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 16.953283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.953330] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 16.953380] Code: b9 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 f1 b9 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 [ 16.953496] RSP: 0018:ffffc20d80bcf730 EFLAGS: 00010282 [ 16.953532] RAX: 0000000000000000 RBX: ffffc20d80bcf740 RCX: 00000000ffffdfff [ 16.953598] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 16.953652] RBP: ffffc20d80bcf248 R08: ffffffffba356a28 R09: 00000000ffffdfff [ 16.953706] R10: ffffffffba276a40 R11: ffffffffba326a40 R12: dead000000000122 [ 16.953761] R13: 00000000fffbadd7 R14: 0000000000000001 R15: ffff9e3dc61d0000 [ 16.953822] FS: 00007fc257af2800(0000) GS:ffff9e3e44359000(0000) knlGS:0000000000000000 [ 16.953881] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 16.953939] CR2: 00000000004e7450 CR3: 0000000007331003 CR4: 0000000000772ef0 [ 16.953998] PKRU: 55555554 [ 16.954014] Call Trace: [ 16.954033] [ 16.954048] netdev_run_todo+0x21a/0x550 [ 16.954097] rtnl_dellink+0x15b/0x350 [ 16.954133] ? virtio_fs_enqueue_req+0x352/0x570 [ 16.954175] ? netdev_run_todo+0x63/0x550 [ 16.954206] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 16.954244] rtnetlink_rcv_msg+0x358/0x400 [ 16.954276] ? get_page_from_freelist+0x15b4/0x1770 [ 16.954313] ? rtnl_calcit.isra.0+0x110/0x110 [ 16.954360] netlink_rcv_skb+0x57/0x100 [ 16.954393] netlink_unicast+0x252/0x380 [ 16.954422] ? __alloc_skb+0xdb/0x190 [ 16.954453] netlink_sendmsg+0x1be/0x3e0 [ 16.954484] ____sys_sendmsg+0x132/0x260 [ 16.954519] ? copy_msghdr_from_user+0x6c/0xa0 [ 16.954561] ___sys_sendmsg+0x87/0xd0 [ 16.954596] ? do_wp_page+0x369/0xe90 [ 16.954634] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 16.954678] ? fsnotify_grab_connector+0x48/0x80 [ 16.954716] ? fsnotify_destroy_marks+0x29/0x150 [ 16.954755] __sys_sendmsg+0x71/0xd0 [ 16.954802] do_syscall_64+0xa4/0xfd0 [ 16.954837] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 16.954879] RIP: 0033:0x7fc257cc01d7 [ 16.954921] 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 [ 16.955049] RSP: 002b:00007ffd34b00e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 16.955110] RAX: ffffffffffffffda RBX: 00007ffd34b01570 RCX: 00007fc257cc01d7 [ 16.955158] RDX: 0000000000000000 RSI: 00007ffd34b00eb0 RDI: 0000000000000005 [ 16.955206] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 16.955258] R10: 00007fc257bbcf60 R11: 0000000000000246 R12: 0000000000000002 [ 16.955313] R13: 00000000690de784 R14: 0000000000499600 R15: 0000000000000000 [ 16.955382] [ 16.955408] ---[ end trace 0000000000000000 ]--- [ 16.956034] ip (563) used greatest stack depth: 11744 bytes left