[ 15.047402][ T243] ip (243) used greatest stack depth: 24152 bytes left
[ 17.563101][ T262] bond0: (slave eth0): Enslaving as a backup interface with a down link
[ 17.711460][ T263] bond0: (slave eth1): Enslaving as a backup interface with a down link
[ 18.009287][ T266] bond0: (slave eth0): Enslaving as a backup interface with an up link
[ 18.140655][ T267] bond0: (slave eth1): Enslaving as a backup interface with an up link
[ 86.004204][ T12] bond0: Warning: No 802.3ad response from the link partner for any adapters in the bond
[ 86.009880][ T12] bond0: (slave eth0): link status definitely up, 10000 Mbps full duplex
[ 86.011164][ T12] bond0: (slave eth1): link status definitely up, 10000 Mbps full duplex
[ 86.012780][ T12] bond0: active interface up!
[ 99.337315][ T1305] bond0: (slave eth0): Releasing backup interface
[ 99.337729][ T1305] bond0: (slave eth0): the permanent HWaddr of slave - 86:35:e4:e0:b0:31 - is still in use by bond - set the HWaddr of slave to a different address to avoid conflicts
[ 99.338654][ T1305] bond0: active interface up!
[ 99.449485][ T71] bond0: (slave eth0): link status definitely down, disabling slave
[ 99.554304][ T71] bond0: (slave eth0): link status definitely up, 10000 Mbps full duplex
[ 99.554825][ T71] bond0: active interface up!
[ 99.619239][ T1307] bond0: (slave eth1): Releasing backup interface
[ 99.642033][ T71] bond0: (slave eth1): link status definitely down, disabling slave
[ 99.642520][ T71] bond0: now running without any active interface!
[ 99.749069][ T71] bond0: (slave eth1): link status definitely up, 10000 Mbps full duplex
[ 99.750386][ T71] bond0: active interface up!
[ 231.409375][ T71] bond0 (unregistering): (slave eth0): Removing an active aggregator
[ 231.410723][ T71] bond0 (unregistering): (slave eth0): Releasing backup interface
[ 231.423918][ T71] bond0 (unregistering): Released all slaves
[ 231.451584][ T71] ==================================================================
[ 231.452068][ T71] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 231.452433][ T71] Read of size 1 at addr ffff8880088f469c by task kworker/u16:1/71
[ 231.452781][ T71]
[ 231.452904][ T71] CPU: 2 UID: 0 PID: 71 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 231.452911][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 231.452914][ T71] Workqueue: netns cleanup_net
[ 231.452925][ T71] Call Trace:
[ 231.452928][ T71]
[ 231.452931][ T71] dump_stack_lvl+0x82/0xc0
[ 231.452939][ T71] print_address_description.constprop.0+0x2c/0x3a0
[ 231.452948][ T71] ? kobject_put+0xbb/0xd0
[ 231.452953][ T71] print_report+0xb4/0x270
[ 231.452957][ T71] ? kobject_put+0xbb/0xd0
[ 231.452961][ T71] ? kasan_addr_to_slab+0x21/0x70
[ 231.452966][ T71] ? kobject_put+0xbb/0xd0
[ 231.452970][ T71] kasan_report+0xca/0x100
[ 231.452976][ T71] ? kobject_put+0xbb/0xd0
[ 231.452984][ T71] kobject_put+0xbb/0xd0
[ 231.452989][ T71] netdev_run_todo+0x5f0/0xc60
[ 231.452997][ T71] ? dev_ingress_queue_create+0x190/0x190
[ 231.453001][ T71] ? unregister_netdevice_many+0x20/0x20
[ 231.453006][ T71] ? generic_xdp_install+0x410/0x410
[ 231.453010][ T71] ? __lock_release+0x5d/0x170
[ 231.453024][ T71] ops_undo_list+0x714/0x890
[ 231.453033][ T71] ? netns_get+0x110/0x110
[ 231.453037][ T71] ? cleanup_net+0x2d6/0x830
[ 231.453046][ T71] cleanup_net+0x3b2/0x830
[ 231.453052][ T71] ? net_passive_dec+0x190/0x190
[ 231.453060][ T71] ? rcu_is_watching+0x12/0xb0
[ 231.453069][ T71] process_one_work+0xe35/0x1650
[ 231.453083][ T71] ? pwq_dec_nr_in_flight+0x550/0x550
[ 231.453092][ T71] ? assign_work+0x168/0x240
[ 231.453099][ T71] worker_thread+0x591/0xcf0
[ 231.453109][ T71] ? rescuer_thread+0xd10/0xd10
[ 231.453114][ T71] kthread+0x37b/0x5f0
[ 231.453122][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 231.453125][ T71] ? ret_from_fork+0x1b/0x270
[ 231.453135][ T71] ? __lock_release+0x5d/0x170
[ 231.453141][ T71] ? rcu_is_watching+0x12/0xb0
[ 231.453145][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 231.453151][ T71] ret_from_fork+0x1db/0x270
[ 231.453156][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 231.453161][ T71] ret_from_fork_asm+0x11/0x20
[ 231.453177][ T71]
[ 231.453179][ T71]
[ 231.464084][ T71] Allocated by task 242:
[ 231.464282][ T71] kasan_save_stack+0x24/0x40
[ 231.464560][ T71] kasan_save_track+0x14/0x30
[ 231.464849][ T71] __kasan_kmalloc+0x7b/0x90
[ 231.465290][ T71] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 231.465544][ T71] alloc_netdev_mqs+0x7d/0x1310
[ 231.465812][ T71] sit_init_net+0x169/0x550
[ 231.466084][ T71] ops_init+0x189/0x550
[ 231.466293][ T71] setup_net+0xf1/0x380
[ 231.466488][ T71] copy_net_ns+0x21a/0x380
[ 231.466763][ T71] create_new_namespaces+0x35f/0x900
[ 231.467040][ T71] unshare_nsproxy_namespaces+0x89/0x120
[ 231.467316][ T71] ksys_unshare+0x2a3/0x660
[ 231.467601][ T71] __x64_sys_unshare+0x31/0x40
[ 231.467865][ T71] do_syscall_64+0xc1/0xfd0
[ 231.468147][ T71] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 231.468634][ T71]
[ 231.468771][ T71] Freed by task 71:
[ 231.468970][ T71] kasan_save_stack+0x24/0x40
[ 231.469250][ T71] kasan_save_track+0x14/0x30
[ 231.469520][ T71] __kasan_save_free_info+0x3b/0x60
[ 231.469800][ T71] __kasan_slab_free+0x3f/0x60
[ 231.470082][ T71] kfree+0x21d/0x540
[ 231.470295][ T71] device_release+0x9c/0x210
[ 231.470579][ T71] kobject_cleanup+0xfe/0x360
[ 231.471023][ T71] netdev_run_todo+0x81f/0xc60
[ 231.471298][ T71] ops_undo_list+0x714/0x890
[ 231.471574][ T71] cleanup_net+0x3b2/0x830
[ 231.471840][ T71] process_one_work+0xe35/0x1650
[ 231.472147][ T71] worker_thread+0x591/0xcf0
[ 231.472416][ T71] kthread+0x37b/0x5f0
[ 231.472607][ T71] ret_from_fork+0x1db/0x270
[ 231.472860][ T71] ret_from_fork_asm+0x11/0x20
[ 231.473102][ T71]
[ 231.473243][ T71] The buggy address belongs to the object at ffff8880088f4000
[ 231.473243][ T71] which belongs to the cache kmalloc-4k of size 4096
[ 231.473850][ T71] The buggy address is located 1692 bytes inside of
[ 231.473850][ T71] freed 4096-byte region [ffff8880088f4000, ffff8880088f5000)
[ 231.474495][ T71]
[ 231.474630][ T71] The buggy address belongs to the physical page:
[ 231.474969][ T71] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x88f0
[ 231.475471][ T71] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 231.475889][ T71] flags: 0x80000000000040(head|node=0|zone=1)
[ 231.476245][ T71] page_type: f5(slab)
[ 231.476632][ T71] raw: 0080000000000040 ffff888001043700 ffffea000020e010 ffffea000020c410
[ 231.477132][ T71] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 231.477631][ T71] head: 0080000000000040 ffff888001043700 ffffea000020e010 ffffea000020c410
[ 231.478134][ T71] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 231.478619][ T71] head: 0080000000000003 ffffea0000223c01 00000000ffffffff 00000000ffffffff
[ 231.479292][ T71] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 231.479787][ T71] page dumped because: kasan: bad access detected
[ 231.480139][ T71]
[ 231.480258][ T71] Memory state around the buggy address:
[ 231.480536][ T71] ffff8880088f4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 231.480904][ T71] ffff8880088f4600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 231.481297][ T71] >ffff8880088f4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 231.481685][ T71] ^
[ 231.481946][ T71] ffff8880088f4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 231.482319][ T71] ffff8880088f4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 231.482705][ T71] ==================================================================
[ 231.483315][ T71] Disabling lock debugging due to kernel taint
[ 231.483700][ T71] ------------[ cut here ]------------
[ 231.483888][ T71] refcount_t: underflow; use-after-free.
[ 231.484072][ T71] WARNING: CPU: 1 PID: 71 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 231.484386][ T71] Modules linked in: cls_matchall
[ 231.484577][ T71] CPU: 1 UID: 0 PID: 71 Comm: kworker/u16:1 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 231.484991][ T71] Tainted: [B]=BAD_PAGE
[ 231.485115][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 231.485317][ T71] Workqueue: netns cleanup_net
[ 231.485494][ T71] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 231.485704][ T71] 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 c5 86 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
[ 231.486278][ T71] RSP: 0018:ffffc900004c7a08 EFLAGS: 00010282
[ 231.486486][ T71] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 231.486719][ T71] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 231.486971][ T71] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff0ebe134
[ 231.487207][ T71] R10: 0000000000000003 R11: ffffc900004c7580 R12: 0000000000000001
[ 231.487444][ T71] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 231.487694][ T71] FS: 0000000000000000(0000) GS:ffff8880ad801000(0000) knlGS:0000000000000000
[ 231.488018][ T71] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 231.488234][ T71] CR2: 00005636b0f36878 CR3: 0000000029135005 CR4: 0000000000772ef0
[ 231.488468][ T71] PKRU: 55555554
[ 231.488585][ T71] Call Trace:
[ 231.488721][ T71]
[ 231.488816][ T71] netdev_run_todo+0x5f0/0xc60
[ 231.488982][ T71] ? dev_ingress_queue_create+0x190/0x190
[ 231.489146][ T71] ? unregister_netdevice_many+0x20/0x20
[ 231.489300][ T71] ? generic_xdp_install+0x410/0x410
[ 231.489453][ T71] ? __lock_release+0x5d/0x170
[ 231.489611][ T71] ops_undo_list+0x714/0x890
[ 231.489768][ T71] ? netns_get+0x110/0x110
[ 231.489938][ T71] ? cleanup_net+0x2d6/0x830
[ 231.490099][ T71] cleanup_net+0x3b2/0x830
[ 231.490265][ T71] ? net_passive_dec+0x190/0x190
[ 231.490419][ T71] ? rcu_is_watching+0x12/0xb0
[ 231.490592][ T71] process_one_work+0xe35/0x1650
[ 231.490751][ T71] ? pwq_dec_nr_in_flight+0x550/0x550
[ 231.490922][ T71] ? assign_work+0x168/0x240
[ 231.491082][ T71] worker_thread+0x591/0xcf0
[ 231.491243][ T71] ? rescuer_thread+0xd10/0xd10
[ 231.491396][ T71] kthread+0x37b/0x5f0
[ 231.491522][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 231.491684][ T71] ? ret_from_fork+0x1b/0x270
[ 231.491863][ T71] ? __lock_release+0x5d/0x170
[ 231.492037][ T71] ? rcu_is_watching+0x12/0xb0
[ 231.492206][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 231.492368][ T71] ret_from_fork+0x1db/0x270
[ 231.492531][ T71] ? kthread_is_per_cpu+0xc0/0xc0
[ 231.492685][ T71] ret_from_fork_asm+0x11/0x20
[ 231.492862][ T71]
[ 231.492983][ T71] irq event stamp: 97523
[ 231.493105][ T71] hardirqs last enabled at (97523): [] finish_task_switch.isra.0+0x245/0x960
[ 231.493457][ T71] hardirqs last disabled at (97522): [] __schedule+0x94a/0x1b10
[ 231.493727][ T71] softirqs last enabled at (97276): [] handle_softirqs+0x352/0x610
[ 231.494017][ T71] softirqs last disabled at (97193): [] irq_exit_rcu+0xab/0x100
[ 231.494294][ T71] ---[ end trace 0000000000000000 ]---
[ 231.505839][ T71] bond0: (slave eth1): Removing an active aggregator
[ 231.506248][ T71] bond0: (slave eth1): Releasing backup interface
[ 231.767158][ T71] bond0 (unregistering): Released all slaves