[ 2.499784] 8021q: 802.1Q VLAN Support v1.8 [ 2.685556] br0: port 1(veth1) entered blocking state [ 2.685627] br0: port 1(veth1) entered disabled state [ 2.685688] veth1: entered allmulticast mode [ 2.685780] veth1: entered promiscuous mode [ 2.696357] br0: port 2(veth2) entered blocking state [ 2.696423] br0: port 2(veth2) entered disabled state [ 2.696498] veth2: entered allmulticast mode [ 2.696593] veth2: entered promiscuous mode [ 2.718968] br0: port 1(veth1) entered blocking state [ 2.719066] br0: port 1(veth1) entered forwarding state [ 2.730412] br0: port 2(veth2) entered blocking state [ 2.730480] br0: port 2(veth2) entered forwarding state [ 28.177478] GACT probability NOT on [ 28.178839] tc (365) used greatest stack depth: 11840 bytes left [ 50.570473] br1: port 1(veth0) entered blocking state [ 50.570614] br1: port 1(veth0) entered disabled state [ 50.570685] veth0: entered allmulticast mode [ 50.570793] veth0: entered promiscuous mode [ 50.583304] br1: port 1(veth0) entered blocking state [ 50.583374] br1: port 1(veth0) entered forwarding state [ 52.629319] veth0: left allmulticast mode [ 52.629408] veth0: left promiscuous mode [ 52.629467] br1: port 1(veth0) entered disabled state [ 52.666571] ------------[ cut here ]------------ [ 52.666710] refcount_t: underflow; use-after-free. [ 52.666794] WARNING: CPU: 0 PID: 590 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 52.666905] Modules linked in: act_gact cls_flower sch_ingress bridge stp llc 8021q vrf veth [ 52.667025] CPU: 0 UID: 0 PID: 590 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 52.667141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 52.667213] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 52.667277] Code: 87 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 87 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 [ 52.667481] RSP: 0018:ffffab1700bb7730 EFLAGS: 00010282 [ 52.667546] RAX: 0000000000000000 RBX: ffffab1700bb7740 RCX: 00000000ffffdfff [ 52.667641] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 52.667729] RBP: ffffab1700bb7248 R08: ffffffff88156a28 R09: 00000000ffffdfff [ 52.667816] R10: ffffffff88076a40 R11: ffffffff88126a40 R12: dead000000000122 [ 52.667901] R13: 00000000fffc395b R14: 0000000000000001 R15: ffff9bdb0644e000 [ 52.667989] FS: 00007fe31f1e7800(0000) GS:ffff9bdbb63d9000(0000) knlGS:0000000000000000 [ 52.668084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.668162] CR2: 00005565a6d15758 CR3: 000000000316f006 CR4: 0000000000772ef0 [ 52.668256] PKRU: 55555554 [ 52.668285] Call Trace: [ 52.668316] [ 52.668351] netdev_run_todo+0x21a/0x550 [ 52.668408] rtnl_dellink+0x15b/0x350 [ 52.668469] ? virtio_fs_enqueue_req+0x352/0x570 [ 52.668544] ? netdev_run_todo+0x63/0x550 [ 52.668599] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 52.668664] rtnetlink_rcv_msg+0x358/0x400 [ 52.668719] ? get_page_from_freelist+0x15b4/0x1770 [ 52.668786] ? rtnl_calcit.isra.0+0x110/0x110 [ 52.668841] netlink_rcv_skb+0x57/0x100 [ 52.668897] netlink_unicast+0x252/0x380 [ 52.668943] ? __alloc_skb+0xdb/0x190 [ 52.669011] netlink_sendmsg+0x1be/0x3e0 [ 52.669062] ____sys_sendmsg+0x132/0x260 [ 52.669118] ? copy_msghdr_from_user+0x6c/0xa0 [ 52.669184] ___sys_sendmsg+0x87/0xd0 [ 52.669248] ? do_wp_page+0x369/0xe90 [ 52.669303] ? ___pte_offset_map+0x1b/0xd0 [ 52.669355] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 52.669421] ? fsnotify_grab_connector+0x48/0x80 [ 52.669487] ? fsnotify_destroy_marks+0x29/0x150 [ 52.669550] __sys_sendmsg+0x71/0xd0 [ 52.669606] do_syscall_64+0xa4/0xfd0 [ 52.669659] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 52.669716] RIP: 0033:0x7fe31f3b51d7 [ 52.669768] 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 [ 52.669974] RSP: 002b:00007ffdeda49a68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 52.670068] RAX: ffffffffffffffda RBX: 00007ffdeda4a190 RCX: 00007fe31f3b51d7 [ 52.670150] RDX: 0000000000000000 RSI: 00007ffdeda49ad0 RDI: 0000000000000005 [ 52.670238] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 52.670330] R10: 00007fe31f2b1f60 R11: 0000000000000246 R12: 0000000000000002 [ 52.670415] R13: 00000000690dec4f R14: 0000000000499600 R15: 0000000000000000 [ 52.670508] [ 52.670538] ---[ end trace 0000000000000000 ]--- [ 52.671319] ip (590) used greatest stack depth: 11744 bytes left [ 60.485063] br0: vlan filtering disabled, automatically disabling multicast vlan snooping [ 60.558977] br0: port 2(veth2) entered disabled state [ 60.572384] br0: port 1(veth1) entered disabled state [ 60.584791] veth2: left allmulticast mode [ 60.584866] veth2: left promiscuous mode [ 60.584927] br0: port 2(veth2) entered disabled state [ 60.585104] veth1: left allmulticast mode [ 60.585152] veth1: left promiscuous mode [ 60.585200] br0: port 1(veth1) entered disabled state