[ 13.323373][ T229] ip (229) used greatest stack depth: 24720 bytes left
[ 14.358416][ T244] team0: Port device dummy0 added
[ 14.600239][ T247] team0: Port device dummy0 removed
[ 14.621038][ T247] ip (247) used greatest stack depth: 24672 bytes left
[ 14.740917][ T250] team0: Mode changed to "activebackup"
[ 15.016820][ T252] team0: Mode changed to "loadbalance"
[ 15.301415][ T254] team0: Mode changed to "activebackup"
[ 18.458588][ T289] team0: Port device dummy0 added
[ 19.307588][ T297] team0: Port device dummy0 removed
[ 19.438579][ T299] team0: Port device dummy0 added
[ 20.313245][ T307] team0: Port device dummy0 removed
[ 20.446083][ T309] team0: Port device dummy0 added
[ 21.299726][ T317] team0: Port device dummy0 removed
[ 21.432860][ T319] team0: Port device dummy0 added
[ 22.258479][ T327] team0: Port device dummy0 removed
[ 22.372380][ T329] team0: Port device dummy0 added
[ 23.176382][ T337] team0: Port device dummy0 removed
[ 23.418859][ T12] ==================================================================
[ 23.419149][ T12] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 23.419391][ T12] Read of size 1 at addr ffff88800805169c by task kworker/u16:0/12
[ 23.419618][ T12]
[ 23.419705][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 23.419710][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.419714][ T12] Workqueue: netns cleanup_net
[ 23.419722][ T12] Call Trace:
[ 23.419724][ T12]
[ 23.419727][ T12] dump_stack_lvl+0x82/0xc0
[ 23.419732][ T12] print_address_description.constprop.0+0x2c/0x3a0
[ 23.419740][ T12] ? kobject_put+0xbb/0xd0
[ 23.419743][ T12] print_report+0xb4/0x270
[ 23.419746][ T12] ? kobject_put+0xbb/0xd0
[ 23.419748][ T12] ? kasan_addr_to_slab+0x21/0x70
[ 23.419752][ T12] ? kobject_put+0xbb/0xd0
[ 23.419754][ T12] kasan_report+0xca/0x100
[ 23.419757][ T12] ? kobject_put+0xbb/0xd0
[ 23.419762][ T12] kobject_put+0xbb/0xd0
[ 23.419765][ T12] netdev_run_todo+0x5f0/0xc60
[ 23.419770][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 23.419773][ T12] ? generic_xdp_install+0x410/0x410
[ 23.419776][ T12] ? __lock_release+0x5d/0x170
[ 23.419783][ T12] ? bond_net_exit_rtnl+0xcf/0x2f0
[ 23.419791][ T12] ops_undo_list+0x714/0x890
[ 23.419796][ T12] ? netns_get+0x110/0x110
[ 23.419799][ T12] ? cleanup_net+0x2d6/0x830
[ 23.419805][ T12] cleanup_net+0x3b2/0x830
[ 23.419809][ T12] ? net_passive_dec+0x190/0x190
[ 23.419813][ T12] ? rcu_is_watching+0x12/0xb0
[ 23.419819][ T12] process_one_work+0xe35/0x1650
[ 23.419828][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 23.419833][ T12] ? assign_work+0x168/0x240
[ 23.419837][ T12] worker_thread+0x591/0xcf0
[ 23.419843][ T12] ? rescuer_thread+0xd10/0xd10
[ 23.419846][ T12] kthread+0x37b/0x5f0
[ 23.419851][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 23.419854][ T12] ? ret_from_fork+0x1b/0x270
[ 23.419861][ T12] ? __lock_release+0x5d/0x170
[ 23.419864][ T12] ? rcu_is_watching+0x12/0xb0
[ 23.419867][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 23.419870][ T12] ret_from_fork+0x1db/0x270
[ 23.419874][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 23.419876][ T12] ret_from_fork_asm+0x11/0x20
[ 23.419886][ T12]
[ 23.419888][ T12]
[ 23.427126][ T12] Allocated by task 228:
[ 23.427246][ T12] kasan_save_stack+0x24/0x40
[ 23.427405][ T12] kasan_save_track+0x14/0x30
[ 23.427573][ T12] __kasan_kmalloc+0x7b/0x90
[ 23.427823][ T12] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 23.427996][ T12] alloc_netdev_mqs+0x7d/0x1310
[ 23.428161][ T12] sit_init_net+0x169/0x550
[ 23.428318][ T12] ops_init+0x189/0x550
[ 23.428524][ T12] setup_net+0xf1/0x380
[ 23.428642][ T12] copy_net_ns+0x21a/0x380
[ 23.428799][ T12] create_new_namespaces+0x35f/0x900
[ 23.428963][ T12] unshare_nsproxy_namespaces+0x89/0x120
[ 23.429117][ T12] ksys_unshare+0x2a3/0x660
[ 23.429273][ T12] __x64_sys_unshare+0x31/0x40
[ 23.429430][ T12] do_syscall_64+0xc1/0xfd0
[ 23.429589][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 23.429872][ T12]
[ 23.429953][ T12] Freed by task 12:
[ 23.430071][ T12] kasan_save_stack+0x24/0x40
[ 23.430228][ T12] kasan_save_track+0x14/0x30
[ 23.430382][ T12] __kasan_save_free_info+0x3b/0x60
[ 23.430624][ T12] __kasan_slab_free+0x3f/0x60
[ 23.430779][ T12] kfree+0x21d/0x540
[ 23.430899][ T12] device_release+0x9c/0x210
[ 23.431059][ T12] kobject_cleanup+0xfe/0x360
[ 23.431304][ T12] netdev_run_todo+0x81f/0xc60
[ 23.431460][ T12] ops_undo_list+0x714/0x890
[ 23.431618][ T12] cleanup_net+0x3b2/0x830
[ 23.431774][ T12] process_one_work+0xe35/0x1650
[ 23.432016][ T12] worker_thread+0x591/0xcf0
[ 23.432172][ T12] kthread+0x37b/0x5f0
[ 23.432293][ T12] ret_from_fork+0x1db/0x270
[ 23.432451][ T12] ret_from_fork_asm+0x11/0x20
[ 23.432611][ T12]
[ 23.432774][ T12] The buggy address belongs to the object at ffff888008051000
[ 23.432774][ T12] which belongs to the cache kmalloc-4k of size 4096
[ 23.433154][ T12] The buggy address is located 1692 bytes inside of
[ 23.433154][ T12] freed 4096-byte region [ffff888008051000, ffff888008052000)
[ 23.433614][ T12]
[ 23.433695][ T12] The buggy address belongs to the physical page:
[ 23.433891][ T12] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8050
[ 23.434259][ T12] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 23.434499][ T12] flags: 0x80000000000040(head|node=0|zone=1)
[ 23.434698][ T12] page_type: f5(slab)
[ 23.434912][ T12] raw: 0080000000000040 ffff888001043700 ffffea00001e4610 ffffea0000205610
[ 23.435199][ T12] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 23.435484][ T12] head: 0080000000000040 ffff888001043700 ffffea00001e4610 ffffea0000205610
[ 23.435860][ T12] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 23.436136][ T12] head: 0080000000000003 ffffea0000201401 00000000ffffffff 00000000ffffffff
[ 23.436505][ T12] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 23.436785][ T12] page dumped because: kasan: bad access detected
[ 23.437075][ T12]
[ 23.437156][ T12] Memory state around the buggy address:
[ 23.437311][ T12] ffff888008051580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 23.437545][ T12] ffff888008051600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 23.437856][ T12] >ffff888008051680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 23.438098][ T12] ^
[ 23.438254][ T12] ffff888008051700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 23.438566][ T12] ffff888008051780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 23.438792][ T12] ==================================================================
[ 23.439160][ T12] Disabling lock debugging due to kernel taint
[ 23.439434][ T12] ------------[ cut here ]------------
[ 23.439621][ T12] refcount_t: underflow; use-after-free.
[ 23.439917][ T12] WARNING: CPU: 2 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 23.440306][ T12] Modules linked in:
[ 23.440461][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 23.440852][ T12] Tainted: [B]=BAD_PAGE
[ 23.441012][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.441266][ T12] Workqueue: netns cleanup_net
[ 23.441467][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 23.441699][ 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 65 b9 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
[ 23.442339][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 23.442576][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 23.442845][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 23.443159][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff73fe134
[ 23.443435][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 23.443715][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 23.444003][ T12] FS: 0000000000000000(0000) GS:ffff88807ae81000(0000) knlGS:0000000000000000
[ 23.444440][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 23.444773][ T12] CR2: 000055d100449af8 CR3: 000000000df35005 CR4: 0000000000772ef0
[ 23.445169][ T12] PKRU: 55555554
[ 23.445407][ T12] Call Trace:
[ 23.445634][ T12]
[ 23.445967][ T12] netdev_run_todo+0x5f0/0xc60
[ 23.446293][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 23.446595][ T12] ? generic_xdp_install+0x410/0x410
[ 23.446897][ T12] ? __lock_release+0x5d/0x170
[ 23.447226][ T12] ? bond_net_exit_rtnl+0xcf/0x2f0
[ 23.447543][ T12] ops_undo_list+0x714/0x890
[ 23.447850][ T12] ? netns_get+0x110/0x110
[ 23.448284][ T12] ? cleanup_net+0x2d6/0x830
[ 23.448604][ T12] cleanup_net+0x3b2/0x830
[ 23.448857][ T12] ? net_passive_dec+0x190/0x190
[ 23.449177][ T12] ? rcu_is_watching+0x12/0xb0
[ 23.449473][ T12] process_one_work+0xe35/0x1650
[ 23.449763][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 23.450019][ T12] ? assign_work+0x168/0x240
[ 23.450224][ T12] worker_thread+0x591/0xcf0
[ 23.450412][ T12] ? rescuer_thread+0xd10/0xd10
[ 23.450598][ T12] kthread+0x37b/0x5f0
[ 23.450746][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 23.450947][ T12] ? ret_from_fork+0x1b/0x270
[ 23.451158][ T12] ? __lock_release+0x5d/0x170
[ 23.451344][ T12] ? rcu_is_watching+0x12/0xb0
[ 23.451533][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 23.451713][ T12] ret_from_fork+0x1db/0x270
[ 23.451903][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 23.452109][ T12] ret_from_fork_asm+0x11/0x20
[ 23.452307][ T12]
[ 23.452456][ T12] irq event stamp: 3907
[ 23.452606][ T12] hardirqs last enabled at (3907): [] finish_task_switch.isra.0+0x245/0x960
[ 23.452970][ T12] hardirqs last disabled at (3906): [] __schedule+0x94a/0x1b10
[ 23.453308][ T12] softirqs last enabled at (3158): [] handle_softirqs+0x352/0x610
[ 23.453619][ T12] softirqs last disabled at (3153): [] irq_exit_rcu+0xab/0x100
[ 23.453939][ T12] ---[ end trace 0000000000000000 ]---