[ 2.891763] eth1: renamed from tmp [ 4.422125] br0: port 1(eth1) entered blocking state [ 4.422201] br0: port 1(eth1) entered disabled state [ 4.422251] eth1: entered allmulticast mode [ 4.422351] eth1: entered promiscuous mode [ 4.468010] br0: port 1(eth1) entered blocking state [ 4.468091] br0: port 1(eth1) entered forwarding state [ 4.491161] br0: port 1(eth1) entered disabled state [ 4.491273] br0: port 1(eth1) entered blocking state [ 4.491322] br0: port 1(eth1) entered forwarding state [ 9.977902] br0: port 1(eth1) entered disabled state [ 9.978034] br0: port 1(eth1) entered blocking state [ 9.978098] br0: port 1(eth1) entered forwarding state [ 11.627912] eth1: left allmulticast mode [ 11.627984] eth1: left promiscuous mode [ 11.628037] br0: port 1(eth1) entered disabled state [ 11.643611] ------------[ cut here ]------------ [ 11.643735] refcount_t: underflow; use-after-free. [ 11.643808] WARNING: CPU: 0 PID: 447 at lib/refcount.c:28 refcount_warn_saturate+0xbc/0x110 [ 11.643886] Modules linked in: [ 11.643922] CPU: 0 UID: 0 PID: 447 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(voluntary) [ 11.643988] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.644047] RIP: 0010:refcount_warn_saturate+0xbc/0x110 [ 11.644101] Code: 92 e8 e8 54 ba ff 90 0f 0b 90 90 c3 80 3d 00 e6 2b 01 00 75 89 c6 05 f7 e5 2b 01 01 90 48 c7 c7 f8 48 75 92 e8 c5 54 ba ff 90 <0f> 0b 90 90 c3 80 3d db e5 2b 01 00 0f 85 62 ff ff ff c6 05 ce e5 [ 11.644232] RSP: 0018:ffffba2bc086f730 EFLAGS: 00010282 [ 11.644278] RAX: 0000000000000000 RBX: ffffba2bc086f740 RCX: 00000000ffffdfff [ 11.644335] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 11.644426] RBP: ffffba2bc086f238 R08: ffffffff92f5ba28 R09: 00000000ffffdfff [ 11.644498] R10: ffffffff92e7ba40 R11: ffffffff92f2ba40 R12: dead000000000122 [ 11.644585] R13: 00000000fffb9918 R14: 0000000000000001 R15: ffff8cef01133000 [ 11.644661] FS: 00007fbd63dbc800(0000) GS:ffff8cefab591000(0000) knlGS:0000000000000000 [ 11.644725] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.644770] CR2: 00000000004e68c8 CR3: 0000000006204005 CR4: 0000000000772ef0 [ 11.644836] PKRU: 55555554 [ 11.644853] Call Trace: [ 11.644883] [ 11.644910] netdev_run_todo+0x21a/0x550 [ 11.644954] rtnl_dellink+0x15b/0x350 [ 11.644996] ? virtio_fs_enqueue_req+0x352/0x570 [ 11.645043] ? netdev_run_todo+0x63/0x550 [ 11.645084] ? rtnl_bridge_getlink+0x1a0/0x1a0 [ 11.645135] rtnetlink_rcv_msg+0x358/0x400 [ 11.645169] ? get_page_from_freelist+0x15b4/0x1770 [ 11.645213] ? rtnl_calcit.isra.0+0x110/0x110 [ 11.645255] netlink_rcv_skb+0x57/0x100 [ 11.645299] netlink_unicast+0x252/0x380 [ 11.645335] ? __alloc_skb+0xdb/0x190 [ 11.645377] netlink_sendmsg+0x1be/0x3e0 [ 11.645426] ____sys_sendmsg+0x132/0x260 [ 11.645465] ? copy_msghdr_from_user+0x6c/0xa0 [ 11.645506] ___sys_sendmsg+0x87/0xd0 [ 11.645538] ? do_wp_page+0x369/0xe90 [ 11.645591] ? ___pte_offset_map+0x1b/0xd0 [ 11.645641] ? nfulnl_rcv_nl_event+0x36/0xa0 [ 11.645694] ? fsnotify_grab_connector+0x48/0x80 [ 11.645742] ? fsnotify_destroy_marks+0x29/0x150 [ 11.645793] __sys_sendmsg+0x71/0xd0 [ 11.645833] do_syscall_64+0xa4/0xfd0 [ 11.645875] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 11.645915] RIP: 0033:0x7fbd63f8a1d7 [ 11.645949] 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 [ 11.646079] RSP: 002b:00007ffc0f331958 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 11.646145] RAX: ffffffffffffffda RBX: 00007ffc0f332080 RCX: 00007fbd63f8a1d7 [ 11.646204] RDX: 0000000000000000 RSI: 00007ffc0f3319c0 RDI: 0000000000000005 [ 11.646263] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000078 [ 11.646322] R10: 00007fbd63e86f60 R11: 0000000000000246 R12: 0000000000000001 [ 11.646403] R13: 00000000690de8b3 R14: 0000000000499600 R15: 0000000000000000 [ 11.646460] [ 11.646484] ---[ end trace 0000000000000000 ]--- [ 11.647345] ip (447) used greatest stack depth: 11744 bytes left [ 12.769834] eth1: renamed from tmp [ 12.830747] eth2: renamed from tmp [ 17.769819] eth1: renamed from tmp