[ 2.760371] br1: port 1(veth1) entered blocking state [ 2.760446] br1: port 1(veth1) entered disabled state [ 2.760513] veth1: entered allmulticast mode [ 2.760612] veth1: entered promiscuous mode [ 2.772280] br1: port 1(veth1) entered blocking state [ 2.772347] br1: port 1(veth1) entered forwarding state [ 2.783535] br1: port 2(veth2) entered blocking state [ 2.783589] br1: port 2(veth2) entered disabled state [ 2.783675] veth2: entered allmulticast mode [ 2.783755] veth2: entered promiscuous mode [ 2.795065] br1: port 2(veth2) entered blocking state [ 2.795147] br1: port 2(veth2) entered forwarding state [ 2.836612] 8021q: 802.1Q VLAN Support v1.8 [ 2.955190] GACT probability NOT on [ 2.956477] tc (322) used greatest stack depth: 12000 bytes left [ 8.297611] Mirror/redirect action on [ 34.068983] ------------[ cut here ]------------ [ 34.069086] refcount_t: underflow; use-after-free. [ 34.069154] WARNING: CPU: 3 PID: 543 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 34.069222] Modules linked in: act_mirred cls_flower act_gact cls_matchall 8021q bridge stp llc sch_ingress vrf veth [ 34.069305] CPU: 3 UID: 0 PID: 543 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 34.069374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.069424] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 34.069463] Code: 96 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 51 96 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 [ 34.069595] RSP: 0018:ffffab494052f730 EFLAGS: 00010282 [ 34.069652] RAX: 0000000000000000 RBX: ffffab494052f740 RCX: 00000000ffffdfff [ 34.069700] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 34.069761] RBP: ffffab494052f248 R08: ffffffff96956a28 R09: 00000000ffffdfff [ 34.069827] R10: ffffffff96876a40 R11: ffffffff96926a40 R12: dead000000000122 [ 34.069887] R13: 00000000fffbf0b4 R14: 0000000000000001 R15: ffff9b6243150000 [ 34.069960] FS: 00007f10dec98800(0000) GS:ffff9b62e7d59000(0000) knlGS:0000000000000000 [ 34.070023] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.070071] CR2: 00000000004e5a00 CR3: 0000000004758005 CR4: 0000000000772ef0 [ 34.070121] PKRU: 55555554 [ 34.070144] Call Trace: [ 34.070166] [ 34.070186] netdev_run_todo+0x21a/0x550 [ 34.070223] rtnl_dellink+0x15b/0x350 [ 34.070258] ? virtio_fs_enqueue_req+0x352/0x570 [ 34.070304] ? netdev_run_todo+0x63/0x550 [ 34.070338] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 34.070378] rtnetlink_rcv_msg+0x358/0x400 [ 34.070409] ? get_page_from_freelist+0x15b4/0x1770 [ 34.070448] ? rtnl_calcit.isra.0+0x110/0x110 [ 34.070486] netlink_rcv_skb+0x57/0x100 [ 34.070520] netlink_unicast+0x252/0x380 [ 34.070551] ? __alloc_skb+0xdb/0x190 [ 34.070585] netlink_sendmsg+0x1be/0x3e0 [ 34.070609] ____sys_sendmsg+0x132/0x260 [ 34.070648] ? copy_msghdr_from_user+0x6c/0xa0 [ 34.070695] ___sys_sendmsg+0x87/0xd0 [ 34.070726] ? do_wp_page+0x369/0xe90 [ 34.070761] ? ___pte_offset_map+0x1b/0xd0 [ 34.070789] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 34.070830] ? fsnotify_grab_connector+0x48/0x80 [ 34.070912] ? fsnotify_destroy_marks+0x29/0x150 [ 34.070964] __sys_sendmsg+0x71/0xd0 [ 34.071002] do_syscall_64+0xa4/0xfd0 [ 34.071038] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 34.071086] RIP: 0033:0x7f10dee661d7 [ 34.071122] 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 [ 34.071244] RSP: 002b:00007ffd8613c8e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 34.071303] RAX: ffffffffffffffda RBX: 00007ffd8613d010 RCX: 00007f10dee661d7 [ 34.071360] RDX: 0000000000000000 RSI: 00007ffd8613c950 RDI: 0000000000000005 [ 34.071415] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 34.071469] R10: 00007f10ded62f60 R11: 0000000000000246 R12: 0000000000000002 [ 34.071525] R13: 00000000690de6d4 R14: 0000000000499600 R15: 0000000000000000 [ 34.071585] [ 34.071605] ---[ end trace 0000000000000000 ]--- [ 34.072285] ip (543) used greatest stack depth: 11744 bytes left [ 34.172490] br1: port 1(veth1) entered disabled state [ 34.184997] br1: port 2(veth2) entered disabled state [ 34.196779] veth2: left allmulticast mode [ 34.196844] veth2: left promiscuous mode [ 34.196891] br1: port 2(veth2) entered disabled state [ 34.197023] veth1: left allmulticast mode [ 34.197099] veth1: left promiscuous mode [ 34.197141] br1: port 1(veth1) entered disabled state