[ 2.750829] openvswitch: Open vSwitch switching datapath [ 4.115113] netlink: 'python3': attribute type 2 has an invalid length. [ 4.115629] arpping: entered promiscuous mode [ 4.327412] ip (293) used greatest stack depth: 12168 bytes left [ 5.094481] c0: entered promiscuous mode [ 5.962330] s0: entered promiscuous mode [ 8.672121] s0 (unregistering): left promiscuous mode [ 8.676753] ------------[ cut here ]------------ [ 8.676894] refcount_t: underflow; use-after-free. [ 8.677010] WARNING: CPU: 2 PID: 413 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 8.677123] Modules linked in: openvswitch psample nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nsh [ 8.677215] CPU: 2 UID: 0 PID: 413 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 8.677315] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.677404] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 8.677483] Code: b6 e8 e8 54 ba ff 90 0f 0b 90 90 c3 80 3d 00 e6 2b 01 00 75 89 c6 05 f7 e5 2b 01 01 90 48 c7 c7 f8 48 15 b6 e8 c5 54 ba ff 90 <0f> 0b 90 90 c3 80 3d db e5 2b 01 00 0f 85 62 ff ff ff c6 05 ce e5 [ 8.677653] RSP: 0018:ffffc08c407cf730 EFLAGS: 00010282 [ 8.677721] RAX: 0000000000000000 RBX: ffffc08c407cf740 RCX: 00000000ffffdfff [ 8.677798] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 8.677869] RBP: ffffc08c407cf238 R08: ffffffffb695ba28 R09: 00000000ffffdfff [ 8.677938] R10: ffffffffb687ba40 R11: ffffffffb692ba40 R12: dead000000000122 [ 8.678015] R13: 00000000fffb8d73 R14: 0000000000000001 R15: ffff9e188a358000 [ 8.678127] FS: 00007f6a3c3ee800(0000) GS:ffff9e1907c91000(0000) knlGS:0000000000000000 [ 8.678201] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.678269] CR2: 00007fd7f5ea5900 CR3: 000000000c47c003 CR4: 0000000000772ef0 [ 8.678352] PKRU: 55555554 [ 8.678392] Call Trace: [ 8.678432] [ 8.678472] netdev_run_todo+0x21a/0x550 [ 8.678529] rtnl_dellink+0x15b/0x350 [ 8.678595] ? virtio_fs_enqueue_req+0x352/0x570 [ 8.678661] ? netdev_run_todo+0x63/0x550 [ 8.678720] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 8.678778] rtnetlink_rcv_msg+0x358/0x400 [ 8.678835] ? get_page_from_freelist+0x15b4/0x1770 [ 8.678895] ? rtnl_calcit.isra.0+0x110/0x110 [ 8.678953] netlink_rcv_skb+0x57/0x100 [ 8.679012] netlink_unicast+0x252/0x380 [ 8.679065] ? __alloc_skb+0xdb/0x190 [ 8.679109] netlink_sendmsg+0x1be/0x3e0 [ 8.679175] ____sys_sendmsg+0x132/0x260 [ 8.679227] ? copy_msghdr_from_user+0x6c/0xa0 [ 8.679295] ___sys_sendmsg+0x87/0xd0 [ 8.679345] ? do_wp_page+0x369/0xe90 [ 8.679394] ? ___pte_offset_map+0x1b/0xd0 [ 8.679444] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 8.679506] ? fsnotify_grab_connector+0x48/0x80 [ 8.679571] ? fsnotify_destroy_marks+0x29/0x150 [ 8.679641] __sys_sendmsg+0x71/0xd0 [ 8.679712] do_syscall_64+0xa4/0xfd0 [ 8.679796] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 8.679864] RIP: 0033:0x7f6a3c5bc1d7 [ 8.679916] 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 [ 8.680050] RSP: 002b:00007ffdc43a6688 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 8.680137] RAX: ffffffffffffffda RBX: 00007ffdc43a6db0 RCX: 00007f6a3c5bc1d7 [ 8.680217] RDX: 0000000000000000 RSI: 00007ffdc43a66f0 RDI: 0000000000000005 [ 8.680299] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 8.680371] R10: 00007f6a3c4b8f60 R11: 0000000000000246 R12: 0000000000000001 [ 8.680449] R13: 00000000690de5cf R14: 0000000000499600 R15: 0000000000000000 [ 8.680529] [ 8.680572] ---[ end trace 0000000000000000 ]--- [ 8.681141] ip (413) used greatest stack depth: 11744 bytes left [ 8.722622] c0 (unregistering): left promiscuous mode [ 9.362473] arpping: left promiscuous mode [ 11.227889] netlink: 'python3': attribute type 2 has an invalid length. [ 11.228317] ct4: entered promiscuous mode [ 12.095241] c0: entered promiscuous mode [ 12.960829] s0: entered promiscuous mode [ 29.976067] s0 (unregistering): left promiscuous mode [ 30.031556] c0 (unregistering): left promiscuous mode [ 30.654317] ct4: left promiscuous mode [ 32.685657] netlink: 'python3': attribute type 2 has an invalid length. [ 32.686117] cv4: entered promiscuous mode [ 33.612080] c0: entered promiscuous mode [ 34.424796] s0: entered promiscuous mode [ 39.574827] s0 (unregistering): left promiscuous mode [ 39.630821] c0 (unregistering): left promiscuous mode [ 40.283435] cv4: left promiscuous mode [ 42.042367] netlink: 'python3': attribute type 2 has an invalid length. [ 42.042795] nat4: entered promiscuous mode [ 42.947208] c0: entered promiscuous mode [ 43.742633] s0: entered promiscuous mode [ 60.594756] s0 (unregistering): left promiscuous mode [ 60.654774] c0 (unregistering): left promiscuous mode [ 61.360561] nat4: left promiscuous mode [ 63.438255] netlink: 'python3': attribute type 2 has an invalid length. [ 63.438590] natrelated4: entered promiscuous mode [ 64.294350] c0: entered promiscuous mode [ 65.123947] s0: entered promiscuous mode [ 70.650617] s0 (unregistering): left promiscuous mode [ 70.701701] c0 (unregistering): left promiscuous mode [ 71.310971] natrelated4: left promiscuous mode [ 73.124072] netlink: 'python3': attribute type 2 has an invalid length. [ 73.124415] nv0: entered promiscuous mode [ 73.860520] netlink: 'python3': attribute type 2 has an invalid length. [ 73.860672] openvswitch: nv0: Dropping previously announced user features [ 74.712024] left0: entered promiscuous mode [ 75.543856] right0: entered promiscuous mode [ 76.915209] right0: left promiscuous mode [ 78.215001] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 78.291686] python3 (1758) used greatest stack depth: 10568 bytes left [ 78.936115] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 79.122843] left0 (unregistering): left promiscuous mode [ 79.762118] nv0: left promiscuous mode [ 82.186509] ui0: entered promiscuous mode [ 82.982361] left0: entered promiscuous mode [ 85.757986] left0 (unregistering): left promiscuous mode [ 86.358201] ui0: left promiscuous mode [ 88.127739] tdp0: entered promiscuous mode [ 89.050733] left0: entered promiscuous mode [ 89.684077] left0: left promiscuous mode [ 90.477307] ovs-vxlan0: entered promiscuous mode [ 95.887030] ovs-vxlan0 (unregistering): left promiscuous mode [ 96.484211] tdp0: left promiscuous mode [ 98.462886] netlink: 'python3': attribute type 2 has an invalid length. [ 98.463565] dropreason: entered promiscuous mode [ 99.439841] c0: entered promiscuous mode [ 100.286757] s0: entered promiscuous mode [ 123.625255] s0 (unregistering): left promiscuous mode [ 123.675431] c0 (unregistering): left promiscuous mode [ 124.252326] dropreason: left promiscuous mode [ 126.141327] psample: entered promiscuous mode [ 127.076585] c0: entered promiscuous mode [ 127.226834] s0: entered promiscuous mode [ 128.721355] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 129.381127] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 130.067212] openvswitch: netlink: Flow actions may not be safe on all matching packets. [ 134.805130] s0 (unregistering): left promiscuous mode [ 134.867585] c0 (unregistering): left promiscuous mode [ 135.452969] psample: left promiscuous mode