[ 2.533163] br0: port 1(veth1) entered blocking state [ 2.533259] br0: port 1(veth1) entered disabled state [ 2.533328] veth1: entered allmulticast mode [ 2.533438] veth1: entered promiscuous mode [ 2.557145] br0: port 1(veth1) entered blocking state [ 2.557234] br0: port 1(veth1) entered forwarding state [ 7.773770] br0: port 1(veth1) entered disabled state [ 7.786199] veth1: left allmulticast mode [ 7.786296] veth1: left promiscuous mode [ 7.786356] br0: port 1(veth1) entered disabled state [ 7.804100] ------------[ cut here ]------------ [ 7.804221] refcount_t: underflow; use-after-free. [ 7.804288] WARNING: CPU: 3 PID: 316 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 7.804378] Modules linked in: bridge stp llc vrf veth [ 7.804447] CPU: 3 UID: 0 PID: 316 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 7.804545] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 7.804592] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 7.804630] Code: 8d 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 8d 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 [ 7.804751] RSP: 0018:ffffbc69c04c3730 EFLAGS: 00010282 [ 7.804798] RAX: 0000000000000000 RBX: ffffbc69c04c3740 RCX: 00000000ffffdfff [ 7.804864] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 7.804922] RBP: ffffbc69c04c3248 R08: ffffffff8df56a28 R09: 00000000ffffdfff [ 7.804975] R10: ffffffff8de76a40 R11: ffffffff8df26a40 R12: dead000000000122 [ 7.805066] R13: 00000000fffb8a1c R14: 0000000000000001 R15: ffff9da503e38000 [ 7.805151] FS: 00007fec8ce18800(0000) GS:ffff9da5b0759000(0000) knlGS:0000000000000000 [ 7.805235] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 7.805305] CR2: 00000000004e68c8 CR3: 000000000648a005 CR4: 0000000000772ef0 [ 7.805371] PKRU: 55555554 [ 7.805398] Call Trace: [ 7.805428] [ 7.805453] netdev_run_todo+0x21a/0x550 [ 7.805496] rtnl_dellink+0x15b/0x350 [ 7.805537] ? virtio_fs_enqueue_req+0x352/0x570 [ 7.805584] ? netdev_run_todo+0x63/0x550 [ 7.805613] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 7.805653] rtnetlink_rcv_msg+0x358/0x400 [ 7.805684] ? get_page_from_freelist+0x15b4/0x1770 [ 7.805730] ? rtnl_calcit.isra.0+0x110/0x110 [ 7.805767] netlink_rcv_skb+0x57/0x100 [ 7.805808] netlink_unicast+0x252/0x380 [ 7.805845] ? __alloc_skb+0xdb/0x190 [ 7.805878] netlink_sendmsg+0x1be/0x3e0 [ 7.805908] ____sys_sendmsg+0x132/0x260 [ 7.805947] ? copy_msghdr_from_user+0x6c/0xa0 [ 7.805989] ___sys_sendmsg+0x87/0xd0 [ 7.806019] ? do_wp_page+0x369/0xe90 [ 7.806065] ? ___pte_offset_map+0x1b/0xd0 [ 7.806100] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 7.806146] ? fsnotify_grab_connector+0x48/0x80 [ 7.806189] ? fsnotify_destroy_marks+0x29/0x150 [ 7.806228] __sys_sendmsg+0x71/0xd0 [ 7.806267] do_syscall_64+0xa4/0xfd0 [ 7.806304] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 7.806348] RIP: 0033:0x7fec8cfe61d7 [ 7.806378] 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 [ 7.806511] RSP: 002b:00007ffdebecebd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 7.806570] RAX: ffffffffffffffda RBX: 00007ffdebecf300 RCX: 00007fec8cfe61d7 [ 7.806625] RDX: 0000000000000000 RSI: 00007ffdebecec40 RDI: 0000000000000005 [ 7.806679] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078 [ 7.806733] R10: 00007fec8cee2f60 R11: 0000000000000246 R12: 0000000000000002 [ 7.806790] R13: 00000000690de916 R14: 0000000000499600 R15: 0000000000000000 [ 7.806859] [ 7.806880] ---[ end trace 0000000000000000 ]--- [ 7.807510] ip (316) used greatest stack depth: 11744 bytes left