[ 3.128918] 8021q: 802.1Q VLAN Support v1.8 [ 3.195391] gre: GRE over IPv4 demultiplexer driver [ 3.203686] ip6_gre: GRE over IPv6 tunneling driver [ 8.861578] GACT probability NOT on [ 8.862984] tc (430) used greatest stack depth: 11840 bytes left [ 11.699312] ------------[ cut here ]------------ [ 11.699433] refcount_t: underflow; use-after-free. [ 11.699488] WARNING: CPU: 0 PID: 647 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 11.699560] Modules linked in: act_gact cls_flower sch_ingress ip6_gre ip6_tunnel tunnel6 gre 8021q dummy vrf veth [ 11.699652] CPU: 0 UID: 0 PID: 647 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 11.699729] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.699778] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 11.699829] Code: a4 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 a4 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 [ 11.699962] RSP: 0018:ffffad0680d0f730 EFLAGS: 00010282 [ 11.699999] RAX: 0000000000000000 RBX: ffffad0680d0f740 RCX: 00000000ffffdfff [ 11.700058] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 11.700112] RBP: ffff88e148ff0000 R08: ffffffffa4d56a28 R09: 00000000ffffdfff [ 11.700183] R10: ffffffffa4c76a40 R11: ffffffffa4d26a40 R12: 0000000000000001 [ 11.700251] R13: 00000000fffb9935 R14: 0000000000000001 R15: ffff88e148ff0000 [ 11.700326] FS: 00007fbef622d800(0000) GS:ffff88e1d97d9000(0000) knlGS:0000000000000000 [ 11.700385] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.700457] CR2: 00007f54472d85f0 CR3: 0000000009ff1005 CR4: 0000000000772ef0 [ 11.700542] PKRU: 55555554 [ 11.700566] Call Trace: [ 11.700585] [ 11.700604] netdev_run_todo+0x21a/0x550 [ 11.700642] rtnl_dellink+0x15b/0x350 [ 11.700681] ? virtio_fs_enqueue_req+0x352/0x570 [ 11.700727] ? netdev_run_todo+0x63/0x550 [ 11.700770] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 11.700816] rtnetlink_rcv_msg+0x358/0x400 [ 11.700851] ? get_page_from_freelist+0x15b4/0x1770 [ 11.700896] ? rtnl_calcit.isra.0+0x110/0x110 [ 11.700945] netlink_rcv_skb+0x57/0x100 [ 11.700982] netlink_unicast+0x252/0x380 [ 11.701020] ? __alloc_skb+0xdb/0x190 [ 11.701058] netlink_sendmsg+0x1be/0x3e0 [ 11.701086] ____sys_sendmsg+0x132/0x260 [ 11.701123] ? copy_msghdr_from_user+0x6c/0xa0 [ 11.701178] ___sys_sendmsg+0x87/0xd0 [ 11.701210] ? do_wp_page+0x369/0xe90 [ 11.701262] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 11.701310] ? fsnotify_grab_connector+0x48/0x80 [ 11.701355] ? fsnotify_destroy_marks+0x29/0x150 [ 11.701394] __sys_sendmsg+0x71/0xd0 [ 11.701434] do_syscall_64+0xa4/0xfd0 [ 11.701483] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.701545] RIP: 0033:0x7fbef63fb1d7 [ 11.701591] 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 [ 11.701739] RSP: 002b:00007ffe16ae1d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.701809] RAX: ffffffffffffffda RBX: 00007ffe16ae2490 RCX: 00007fbef63fb1d7 [ 11.701864] RDX: 0000000000000000 RSI: 00007ffe16ae1dd0 RDI: 0000000000000005 [ 11.701927] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 11.701983] R10: 00007fbef62f7f60 R11: 0000000000000246 R12: 0000000000000002 [ 11.702070] R13: 00000000690de861 R14: 0000000000499600 R15: 0000000000000000 [ 11.702134] [ 11.702163] ---[ end trace 0000000000000000 ]--- [ 11.702827] ip (647) used greatest stack depth: 11744 bytes left