[ 16.295297][ T262] bond0: (slave eth0): Enslaving as a backup interface with a down link
[ 16.418853][ T263] bond0: (slave eth1): Enslaving as a backup interface with a down link
[ 16.536473][ T264] bond0: (slave eth2): Enslaving as a backup interface with a down link
[ 16.661103][ T265] bond0: (slave eth3): Enslaving as a backup interface with a down link
[ 16.771612][ T266] bond0: (slave eth0): Enslaving as a backup interface with an up link
[ 16.886864][ T267] bond0: (slave eth1): Enslaving as a backup interface with an up link
[ 16.994437][ T268] bond0: (slave eth0): Enslaving as a backup interface with an up link
[ 17.113877][ T269] bond0: (slave eth1): Enslaving as a backup interface with an up link
[ 17.227485][ T12] bond0: Warning: No 802.3ad response from the link partner for any adapters in the bond
[ 17.233875][ T271] bond0: (slave eth0): link status definitely up, 10000 Mbps full duplex
[ 17.234797][ T271] bond0: (slave eth1): link status definitely up, 10000 Mbps full duplex
[ 17.235399][ T271] bond0: (slave eth2): link status definitely up, 10000 Mbps full duplex
[ 17.235992][ T271] bond0: (slave eth3): link status definitely up, 10000 Mbps full duplex
[ 17.236544][ T271] bond0: active interface up!
[ 18.486546][ T271] bond0: (slave eth1): link status definitely down, disabling slave
[ 18.489703][ T271] bond0: (slave eth1): link status definitely down, disabling slave
[ 19.215545][ T271] bond0: (slave eth1): link status definitely up, 10000 Mbps full duplex
[ 19.218685][ T271] bond0: (slave eth1): link status definitely up, 10000 Mbps full duplex
[ 19.219139][ T271] bond0: active interface up!
[ 20.774539][ T271] bond0: (slave eth1): link status definitely down, disabling slave
[ 20.782495][ T12] bond0: (slave eth1): link status definitely down, disabling slave
[ 21.398531][ T271] bond0: (slave eth1): link status definitely up, 10000 Mbps full duplex
[ 21.407688][ T271] bond0: (slave eth1): link status definitely up, 10000 Mbps full duplex
[ 22.818846][ T12] bond0 (unregistering): (slave eth0): Releasing backup interface
[ 22.828993][ T12] bond0 (unregistering): (slave eth1): Releasing backup interface
[ 22.837213][ T12] bond0 (unregistering): (slave eth2): Releasing backup interface
[ 22.844935][ T12] bond0 (unregistering): (slave eth3): Removing an active aggregator
[ 22.845990][ T12] bond0 (unregistering): (slave eth3): Releasing backup interface
[ 22.860124][ T12] bond0 (unregistering): Released all slaves
[ 22.870709][ T271] bond0: (slave eth0): link status definitely down, disabling slave
[ 22.871314][ T271] bond0: (slave eth1): link status definitely down, disabling slave
[ 22.871722][ T271] bond0: now running without any active interface!
[ 22.880109][ T271] bond0: (slave eth0): link status definitely down, disabling slave
[ 22.881146][ T271] bond0: (slave eth1): link status definitely down, disabling slave
[ 22.884115][ T12] ==================================================================
[ 22.884442][ T12] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 22.884816][ T12] Read of size 1 at addr ffff8880088d169c by task kworker/u16:0/12
[ 22.885087][ T12]
[ 22.885170][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 22.885175][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.885178][ T12] Workqueue: netns cleanup_net
[ 22.885187][ T12] Call Trace:
[ 22.885189][ T12]
[ 22.885191][ T12] dump_stack_lvl+0x82/0xc0
[ 22.885197][ T12] print_address_description.constprop.0+0x2c/0x3a0
[ 22.885205][ T12] ? kobject_put+0xbb/0xd0
[ 22.885209][ T12] print_report+0xb4/0x270
[ 22.885212][ T12] ? kobject_put+0xbb/0xd0
[ 22.885214][ T12] ? kasan_addr_to_slab+0x21/0x70
[ 22.885217][ T12] ? kobject_put+0xbb/0xd0
[ 22.885219][ T12] kasan_report+0xca/0x100
[ 22.885222][ T12] ? kobject_put+0xbb/0xd0
[ 22.885228][ T12] kobject_put+0xbb/0xd0
[ 22.885230][ T12] netdev_run_todo+0x5f0/0xc60
[ 22.885236][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 22.885239][ T12] ? unregister_netdevice_many+0x20/0x20
[ 22.885242][ T12] ? generic_xdp_install+0x410/0x410
[ 22.885245][ T12] ? __lock_release+0x5d/0x170
[ 22.885255][ T12] ops_undo_list+0x714/0x890
[ 22.885260][ T12] ? netns_get+0x110/0x110
[ 22.885263][ T12] ? cleanup_net+0x2d6/0x830
[ 22.885268][ T12] cleanup_net+0x3b2/0x830
[ 22.885272][ T12] ? net_passive_dec+0x190/0x190
[ 22.885276][ T12] ? rcu_is_watching+0x12/0xb0
[ 22.885285][ T12] process_one_work+0xe35/0x1650
[ 22.885299][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 22.885310][ T12] ? assign_work+0x168/0x240
[ 22.885317][ T12] worker_thread+0x591/0xcf0
[ 22.885328][ T12] ? rescuer_thread+0xd10/0xd10
[ 22.885334][ T12] kthread+0x37b/0x5f0
[ 22.885340][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 22.885344][ T12] ? ret_from_fork+0x1b/0x270
[ 22.885351][ T12] ? __lock_release+0x5d/0x170
[ 22.885357][ T12] ? rcu_is_watching+0x12/0xb0
[ 22.885361][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 22.885367][ T12] ret_from_fork+0x1db/0x270
[ 22.885372][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 22.885377][ T12] ret_from_fork_asm+0x11/0x20
[ 22.885393][ T12]
[ 22.885395][ T12]
[ 22.892287][ T12] Allocated by task 238:
[ 22.892417][ T12] kasan_save_stack+0x24/0x40
[ 22.892692][ T12] kasan_save_track+0x14/0x30
[ 22.892909][ T12] __kasan_kmalloc+0x7b/0x90
[ 22.893075][ T12] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 22.893285][ T12] alloc_netdev_mqs+0x7d/0x1310
[ 22.893454][ T12] sit_init_net+0x169/0x550
[ 22.893614][ T12] ops_init+0x189/0x550
[ 22.893737][ T12] setup_net+0xf1/0x380
[ 22.893947][ T12] copy_net_ns+0x21a/0x380
[ 22.894100][ T12] create_new_namespaces+0x35f/0x900
[ 22.894255][ T12] unshare_nsproxy_namespaces+0x89/0x120
[ 22.894416][ T12] ksys_unshare+0x2a3/0x660
[ 22.894571][ T12] __x64_sys_unshare+0x31/0x40
[ 22.894816][ T12] do_syscall_64+0xc1/0xfd0
[ 22.894974][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 22.895166][ T12]
[ 22.895245][ T12] Freed by task 12:
[ 22.895360][ T12] kasan_save_stack+0x24/0x40
[ 22.895527][ T12] kasan_save_track+0x14/0x30
[ 22.895682][ T12] __kasan_save_free_info+0x3b/0x60
[ 22.895851][ T12] __kasan_slab_free+0x3f/0x60
[ 22.896010][ T12] kfree+0x21d/0x540
[ 22.896129][ T12] device_release+0x9c/0x210
[ 22.896294][ T12] kobject_cleanup+0xfe/0x360
[ 22.896697][ T12] netdev_run_todo+0x81f/0xc60
[ 22.896954][ T12] ops_undo_list+0x714/0x890
[ 22.897208][ T12] cleanup_net+0x3b2/0x830
[ 22.897450][ T12] process_one_work+0xe35/0x1650
[ 22.897621][ T12] worker_thread+0x591/0xcf0
[ 22.897800][ T12] kthread+0x37b/0x5f0
[ 22.897927][ T12] ret_from_fork+0x1db/0x270
[ 22.898101][ T12] ret_from_fork_asm+0x11/0x20
[ 22.898278][ T12]
[ 22.898365][ T12] The buggy address belongs to the object at ffff8880088d1000
[ 22.898365][ T12] which belongs to the cache kmalloc-4k of size 4096
[ 22.898783][ T12] The buggy address is located 1692 bytes inside of
[ 22.898783][ T12] freed 4096-byte region [ffff8880088d1000, ffff8880088d2000)
[ 22.899192][ T12]
[ 22.899280][ T12] The buggy address belongs to the physical page:
[ 22.899492][ T12] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x88d0
[ 22.899795][ T12] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 22.900145][ T12] flags: 0x80000000000040(head|node=0|zone=1)
[ 22.900367][ T12] page_type: f5(slab)
[ 22.900507][ T12] raw: 0080000000000040 ffff888001043700 ffffea0000178410 ffffea00001dba10
[ 22.900871][ T12] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 22.901301][ T12] head: 0080000000000040 ffff888001043700 ffffea0000178410 ffffea00001dba10
[ 22.901747][ T12] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 22.902362][ T12] head: 0080000000000003 ffffea0000223401 00000000ffffffff 00000000ffffffff
[ 22.902827][ T12] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 22.903433][ T12] page dumped because: kasan: bad access detected
[ 22.903746][ T12]
[ 22.903874][ T12] Memory state around the buggy address:
[ 22.904115][ T12] ffff8880088d1580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 22.904494][ T12] ffff8880088d1600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 22.904861][ T12] >ffff8880088d1680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 22.905230][ T12] ^
[ 22.905623][ T12] ffff8880088d1700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 22.905964][ T12] ffff8880088d1780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 22.906253][ T12] ==================================================================
[ 22.906561][ T12] Disabling lock debugging due to kernel taint
[ 22.906792][ T12] ------------[ cut here ]------------
[ 22.906938][ T12] refcount_t: underflow; use-after-free.
[ 22.907183][ T12] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 22.908575][ T12] Modules linked in:
[ 22.908703][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 22.909050][ T12] Tainted: [B]=BAD_PAGE
[ 22.909168][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.909482][ T12] Workqueue: netns cleanup_net
[ 22.909695][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 22.909989][ T12] Code: a2 b5 02 80 fb 01 0f 87 db 6e d8 fe 83 e3 01 0f 85 51 ff ff ff c6 05 c2 a2 b5 02 01 90 48 c7 c7 60 a8 e5 af e8 72 c3 17 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 20 69 a0 ff e9 ba fe ff ff
[ 22.910832][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 22.911157][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 22.911572][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 22.911892][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff60fe134
[ 22.912119][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 22.912672][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 22.912944][ T12] FS: 0000000000000000(0000) GS:ffff88807e981000(0000) knlGS:0000000000000000
[ 22.913440][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 22.913659][ T12] CR2: 00007f1169512760 CR3: 000000003cb35002 CR4: 0000000000772ef0
[ 22.914033][ T12] PKRU: 55555554
[ 22.914164][ T12] Call Trace:
[ 22.914360][ T12]
[ 22.914456][ T12] netdev_run_todo+0x5f0/0xc60
[ 22.914664][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 22.914823][ T12] ? unregister_netdevice_many+0x20/0x20
[ 22.915059][ T12] ? generic_xdp_install+0x410/0x410
[ 22.915335][ T12] ? __lock_release+0x5d/0x170
[ 22.915549][ T12] ops_undo_list+0x714/0x890
[ 22.915700][ T12] ? netns_get+0x110/0x110
[ 22.915936][ T12] ? cleanup_net+0x2d6/0x830
[ 22.916138][ T12] cleanup_net+0x3b2/0x830
[ 22.916331][ T12] ? net_passive_dec+0x190/0x190
[ 22.916542][ T12] ? rcu_is_watching+0x12/0xb0
[ 22.916714][ T12] process_one_work+0xe35/0x1650
[ 22.916864][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 22.917142][ T12] ? assign_work+0x168/0x240
[ 22.917351][ T12] worker_thread+0x591/0xcf0
[ 22.917565][ T12] ? rescuer_thread+0xd10/0xd10
[ 22.917826][ T12] kthread+0x37b/0x5f0
[ 22.917977][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 22.918141][ T12] ? ret_from_fork+0x1b/0x270
[ 22.918348][ T12] ? __lock_release+0x5d/0x170
[ 22.918646][ T12] ? rcu_is_watching+0x12/0xb0
[ 22.918834][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 22.919021][ T12] ret_from_fork+0x1db/0x270
[ 22.919218][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 22.919460][ T12] ret_from_fork_asm+0x11/0x20
[ 22.919724][ T12]
[ 22.919912][ T12] irq event stamp: 28041
[ 22.920097][ T12] hardirqs last enabled at (28041): [] irqentry_exit+0x3b/0x80
[ 22.920886][ T12] hardirqs last disabled at (28040): [] handle_softirqs+0x47f/0x610
[ 22.921488][ T12] softirqs last enabled at (26524): [] handle_softirqs+0x352/0x610
[ 22.922392][ T12] softirqs last disabled at (26349): [] irq_exit_rcu+0xab/0x100
[ 22.922815][ T12] ---[ end trace 0000000000000000 ]---
[ 22.941644][ T12] bond0: (slave eth1): Releasing backup interface
[ 22.955993][ T12] bond0: (slave eth0): Releasing backup interface
[ 22.986694][ T12] bond0: (slave eth1): Releasing backup interface
[ 23.008261][ T12] bond0: (slave eth0): Releasing backup interface
[ 23.134333][ T12] bond0 (unregistering): Released all slaves
[ 23.409110][ T12] bond0 (unregistering): Released all slaves