[ 2.525199] br1: port 1(veth1) entered blocking state [ 2.525294] br1: port 1(veth1) entered disabled state [ 2.525369] veth1: entered allmulticast mode [ 2.525482] veth1: entered promiscuous mode [ 2.536839] br1: port 1(veth1) entered blocking state [ 2.536924] br1: port 1(veth1) entered forwarding state [ 2.548502] br1: port 2(veth2) entered blocking state [ 2.548592] br1: port 2(veth2) entered disabled state [ 2.548664] veth2: entered allmulticast mode [ 2.548798] veth2: entered promiscuous mode [ 2.559326] br1: port 2(veth2) entered blocking state [ 2.559432] br1: port 2(veth2) entered forwarding state [ 8.763313] tc (330) used greatest stack depth: 11840 bytes left [ 14.290293] br1: port 2(veth2) entered disabled state [ 14.301432] veth2: left allmulticast mode [ 14.301506] veth2: left promiscuous mode [ 14.301578] br1: port 2(veth2) entered disabled state [ 14.313037] br1: port 1(veth1) entered disabled state [ 14.324492] veth1: left allmulticast mode [ 14.324551] veth1: left promiscuous mode [ 14.324598] br1: port 1(veth1) entered disabled state [ 14.351800] ------------[ cut here ]------------ [ 14.351957] refcount_t: underflow; use-after-free. [ 14.352052] WARNING: CPU: 2 PID: 659 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 14.352162] Modules linked in: act_skbedit cls_flower sch_prio sch_ingress bridge stp llc vrf veth [ 14.352290] CPU: 2 UID: 0 PID: 659 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 14.352402] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.352490] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 14.352589] Code: ae 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 d1 ae 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 [ 14.352730] RSP: 0018:ffffaed140a5f730 EFLAGS: 00010282 [ 14.352806] RAX: 0000000000000000 RBX: ffffaed140a5f740 RCX: 00000000ffffdfff [ 14.352930] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 14.353031] RBP: ffffaed140a5f248 R08: ffffffffaf156a28 R09: 00000000ffffdfff [ 14.353131] R10: ffffffffaf076a40 R11: ffffffffaf126a40 R12: dead000000000122 [ 14.353231] R13: 00000000fffba396 R14: 0000000000000001 R15: ffff895c83f70000 [ 14.353334] FS: 00007f911cbe6800(0000) GS:ffff895d0f4d9000(0000) knlGS:0000000000000000 [ 14.353440] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 14.353537] CR2: 00000000004e68d0 CR3: 0000000007e21006 CR4: 0000000000772ef0 [ 14.353640] PKRU: 55555554 [ 14.353692] Call Trace: [ 14.353748] [ 14.353807] netdev_run_todo+0x21a/0x550 [ 14.353884] rtnl_dellink+0x15b/0x350 [ 14.353957] ? virtio_fs_enqueue_req+0x352/0x570 [ 14.354041] ? netdev_run_todo+0x63/0x550 [ 14.354107] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 14.354185] rtnetlink_rcv_msg+0x358/0x400 [ 14.354250] ? get_page_from_freelist+0x15b4/0x1770 [ 14.354333] ? rtnl_calcit.isra.0+0x110/0x110 [ 14.354409] netlink_rcv_skb+0x57/0x100 [ 14.354480] netlink_unicast+0x252/0x380 [ 14.354545] ? __alloc_skb+0xdb/0x190 [ 14.354616] netlink_sendmsg+0x1be/0x3e0 [ 14.354680] ____sys_sendmsg+0x132/0x260 [ 14.354749] ? copy_msghdr_from_user+0x6c/0xa0 [ 14.354835] ___sys_sendmsg+0x87/0xd0 [ 14.354902] ? do_wp_page+0x369/0xe90 [ 14.354971] ? ___pte_offset_map+0x1b/0xd0 [ 14.355042] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 14.355123] ? fsnotify_grab_connector+0x48/0x80 [ 14.355203] ? fsnotify_destroy_marks+0x29/0x150 [ 14.355280] __sys_sendmsg+0x71/0xd0 [ 14.355348] do_syscall_64+0xa4/0xfd0 [ 14.355418] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 14.355503] RIP: 0033:0x7f911cdb41d7 [ 14.355570] 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 [ 14.355770] RSP: 002b:00007ffdba8f0bd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 14.355871] RAX: ffffffffffffffda RBX: 00007ffdba8f1300 RCX: 00007f911cdb41d7 [ 14.355971] RDX: 0000000000000000 RSI: 00007ffdba8f0c40 RDI: 0000000000000005 [ 14.356070] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 14.356169] R10: 00007f911ccb0f60 R11: 0000000000000246 R12: 0000000000000002 [ 14.356270] R13: 00000000690de7eb R14: 0000000000499600 R15: 0000000000000000 [ 14.356370] [ 14.356421] ---[ end trace 0000000000000000 ]--- [ 14.357130] ip (659) used greatest stack depth: 11744 bytes left