[ 2.297793] br0: port 1(veth1) entered blocking state [ 2.297881] br0: port 1(veth1) entered disabled state [ 2.297955] veth1: entered allmulticast mode [ 2.298059] veth1: entered promiscuous mode [ 2.308791] br0: port 2(veth3) entered blocking state [ 2.308933] br0: port 2(veth3) entered disabled state [ 2.309023] veth3: entered allmulticast mode [ 2.309138] veth3: entered promiscuous mode [ 2.341547] br0: port 1(veth1) entered blocking state [ 2.341612] br0: port 1(veth1) entered forwarding state [ 2.363947] br0: port 2(veth3) entered blocking state [ 2.364031] br0: port 2(veth3) entered forwarding state [ 7.531349] br0: port 2(veth3) entered disabled state [ 7.551450] br0: port 1(veth1) entered disabled state [ 7.572550] veth3: left allmulticast mode [ 7.572623] veth3: left promiscuous mode [ 7.572687] br0: port 2(veth3) entered disabled state [ 7.572807] veth1: left allmulticast mode [ 7.572854] veth1: left promiscuous mode [ 7.572901] br0: port 1(veth1) entered disabled state [ 7.594669] ------------[ cut here ]------------ [ 7.594784] refcount_t: underflow; use-after-free. [ 7.594857] WARNING: CPU: 0 PID: 305 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 7.594950] Modules linked in: bridge stp llc veth [ 7.595013] CPU: 0 UID: 0 PID: 305 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 7.595112] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 7.595177] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 7.595230] Code: b6 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 b1 b6 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 [ 7.595422] RSP: 0018:ffffad964037b730 EFLAGS: 00010282 [ 7.595485] RAX: 0000000000000000 RBX: ffffad964037b740 RCX: 00000000ffffdfff [ 7.595567] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 7.595653] RBP: ffffad964037b248 R08: ffffffffb6f56a28 R09: 00000000ffffdfff [ 7.595740] R10: ffffffffb6e76a40 R11: ffffffffb6f26a40 R12: dead000000000122 [ 7.595820] R13: 00000000fffb8937 R14: 0000000000000001 R15: ffff8e3d82edb000 [ 7.595900] FS: 00007f43b2b9f800(0000) GS:ffff8e3e075d9000(0000) knlGS:0000000000000000 [ 7.595987] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.596060] CR2: 00000000004e68c8 CR3: 0000000002f13001 CR4: 0000000000772ef0 [ 7.596141] PKRU: 55555554 [ 7.596173] Call Trace: [ 7.596206] [ 7.596234] netdev_run_todo+0x21a/0x550 [ 7.596288] rtnl_dellink+0x15b/0x350 [ 7.596344] ? virtio_fs_enqueue_req+0x352/0x570 [ 7.596407] ? netdev_run_todo+0x63/0x550 [ 7.596447] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 7.596500] rtnetlink_rcv_msg+0x358/0x400 [ 7.596551] ? get_page_from_freelist+0x15b4/0x1770 [ 7.596614] ? rtnl_calcit.isra.0+0x110/0x110 [ 7.596681] netlink_rcv_skb+0x57/0x100 [ 7.596730] netlink_unicast+0x252/0x380 [ 7.596775] ? __alloc_skb+0xdb/0x190 [ 7.596823] netlink_sendmsg+0x1be/0x3e0 [ 7.596872] ____sys_sendmsg+0x132/0x260 [ 7.596926] ? copy_msghdr_from_user+0x6c/0xa0 [ 7.596985] ___sys_sendmsg+0x87/0xd0 [ 7.597032] ? do_wp_page+0x369/0xe90 [ 7.597078] ? ___pte_offset_map+0x1b/0xd0 [ 7.597129] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 7.597187] ? fsnotify_grab_connector+0x48/0x80 [ 7.597249] ? fsnotify_destroy_marks+0x29/0x150 [ 7.597311] __sys_sendmsg+0x71/0xd0 [ 7.597360] do_syscall_64+0xa4/0xfd0 [ 7.597413] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 7.597473] RIP: 0033:0x7f43b2d6d1d7 [ 7.597522] 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 [ 7.597716] RSP: 002b:00007ffe63775b98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 7.597804] RAX: ffffffffffffffda RBX: 00007ffe637762c0 RCX: 00007f43b2d6d1d7 [ 7.597884] RDX: 0000000000000000 RSI: 00007ffe63775c00 RDI: 0000000000000005 [ 7.597963] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 7.598041] R10: 00007f43b2c69f60 R11: 0000000000000246 R12: 0000000000000002 [ 7.598119] R13: 00000000690deefc R14: 0000000000499600 R15: 0000000000000000 [ 7.598200] [ 7.598226] ---[ end trace 0000000000000000 ]--- [ 7.598815] ip (305) used greatest stack depth: 11744 bytes left