[ 2.939109] br: port 1(veth1) entered blocking state [ 2.939205] br: port 1(veth1) entered disabled state [ 2.939269] veth1: entered allmulticast mode [ 2.939380] veth1: entered promiscuous mode [ 2.939538] br: port 1(veth1) entered blocking state [ 2.939601] br: port 1(veth1) entered forwarding state [ 2.954765] br: port 2(veth3) entered blocking state [ 2.954888] br: port 2(veth3) entered disabled state [ 2.954970] veth3: entered allmulticast mode [ 2.955077] veth3: entered promiscuous mode [ 2.955196] br: port 2(veth3) entered blocking state [ 2.955275] br: port 2(veth3) entered forwarding state [ 2.971076] br: port 3(veth4) entered blocking state [ 2.971163] br: port 3(veth4) entered disabled state [ 2.971213] veth4: entered allmulticast mode [ 2.971334] veth4: entered promiscuous mode [ 2.971467] br: port 3(veth4) entered blocking state [ 2.971515] br: port 3(veth4) entered forwarding state [ 78.044125] Mirror/redirect action on [ 78.045796] tc (793) used greatest stack depth: 12000 bytes left [ 106.392895] ------------[ cut here ]------------ [ 106.393063] refcount_t: underflow; use-after-free. [ 106.393158] WARNING: CPU: 2 PID: 959 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 106.393285] Modules linked in: act_mirred cls_matchall sch_red dummy bridge stp llc sch_tbf vrf veth [ 106.393393] CPU: 2 UID: 0 PID: 959 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 106.393483] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 106.393553] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 106.393619] Code: 84 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 11 84 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 [ 106.393775] RSP: 0018:ffffa63d804b7730 EFLAGS: 00010282 [ 106.393851] RAX: 0000000000000000 RBX: ffffa63d804b7740 RCX: 00000000ffffdfff [ 106.393945] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 106.394023] RBP: ffffa63d804b7248 R08: ffffffff84556a28 R09: 00000000ffffdfff [ 106.394118] R10: ffffffff84476a40 R11: ffffffff84526a40 R12: dead000000000122 [ 106.394206] R13: 00000000fffd0b23 R14: 0000000000000001 R15: ffff91e4c5eb9000 [ 106.394289] FS: 00007f139a12b800(0000) GS:ffff91e57a0d9000(0000) knlGS:0000000000000000 [ 106.394375] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 106.394463] CR2: 000055ab1e7ca728 CR3: 0000000002f08004 CR4: 0000000000772ef0 [ 106.394543] PKRU: 55555554 [ 106.394589] Call Trace: [ 106.394644] [ 106.394697] netdev_run_todo+0x21a/0x550 [ 106.394782] rtnl_dellink+0x15b/0x350 [ 106.394849] ? virtio_fs_enqueue_req+0x352/0x570 [ 106.394935] ? netdev_run_todo+0x63/0x550 [ 106.394991] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 106.395054] rtnetlink_rcv_msg+0x358/0x400 [ 106.395117] ? get_page_from_freelist+0x15b4/0x1770 [ 106.395188] ? rtnl_calcit.isra.0+0x110/0x110 [ 106.395266] netlink_rcv_skb+0x57/0x100 [ 106.395346] netlink_unicast+0x252/0x380 [ 106.395403] ? __alloc_skb+0xdb/0x190 [ 106.395463] netlink_sendmsg+0x1be/0x3e0 [ 106.395519] ____sys_sendmsg+0x132/0x260 [ 106.395587] ? copy_msghdr_from_user+0x6c/0xa0 [ 106.395653] ___sys_sendmsg+0x87/0xd0 [ 106.395721] ? do_wp_page+0x369/0xe90 [ 106.395789] ? ___pte_offset_map+0x1b/0xd0 [ 106.395848] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 106.395937] ? fsnotify_grab_connector+0x48/0x80 [ 106.396007] ? fsnotify_destroy_marks+0x29/0x150 [ 106.396077] __sys_sendmsg+0x71/0xd0 [ 106.396134] do_syscall_64+0xa4/0xfd0 [ 106.396206] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 106.396291] RIP: 0033:0x7f139a2f91d7 [ 106.396352] 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 [ 106.396503] RSP: 002b:00007ffea10ee948 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 106.396586] RAX: ffffffffffffffda RBX: 00007ffea10ef070 RCX: 00007f139a2f91d7 [ 106.396716] RDX: 0000000000000000 RSI: 00007ffea10ee9b0 RDI: 0000000000000005 [ 106.396798] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 106.396897] R10: 00007f139a1f5f60 R11: 0000000000000246 R12: 0000000000000002 [ 106.396993] R13: 00000000690de5ce R14: 0000000000499600 R15: 0000000000000000 [ 106.397101] [ 106.397154] ---[ end trace 0000000000000000 ]--- [ 106.397841] ip (959) used greatest stack depth: 11744 bytes left [ 106.476419] br: port 3(veth4) entered disabled state [ 106.476514] veth4: left allmulticast mode [ 106.476556] veth4: left promiscuous mode [ 106.476590] br: port 3(veth4) entered disabled state [ 106.491351] br: port 2(veth3) entered disabled state [ 106.491453] veth3: left allmulticast mode [ 106.491496] veth3: left promiscuous mode [ 106.491546] br: port 2(veth3) entered disabled state [ 106.507916] br: port 1(veth1) entered disabled state [ 106.508041] veth1: left allmulticast mode [ 106.508092] veth1: left promiscuous mode [ 106.508150] br: port 1(veth1) entered disabled state