[ 17.093854][ T263] ip (263) used greatest stack depth: 23504 bytes left
[ 23.538011][ T306] eth0: renamed from r1h1
[ 23.900487][ T308] eth0: renamed from r2h1
[ 24.383441][ T311] eth2: renamed from r2h2
[ 24.803494][ T314] eth1: renamed from r2r1
[ 25.557448][ T319] br0: port 1(eth0) entered blocking state
[ 25.557907][ T319] br0: port 1(eth0) entered disabled state
[ 25.558305][ T319] eth0: entered allmulticast mode
[ 25.561444][ T319] eth0: entered promiscuous mode
[ 25.565618][ T36] br0: port 1(eth0) entered blocking state
[ 25.566102][ T36] br0: port 1(eth0) entered forwarding state
[ 25.744450][ T320] br0: port 2(eth1) entered blocking state
[ 25.745530][ T320] br0: port 2(eth1) entered disabled state
[ 25.746546][ T320] eth1: entered allmulticast mode
[ 25.749677][ T320] eth1: entered promiscuous mode
[ 25.756477][ T71] br0: port 2(eth1) entered blocking state
[ 25.757162][ T71] br0: port 2(eth1) entered forwarding state
[ 47.239266][ T12] eth1: left allmulticast mode
[ 47.239674][ T12] eth1: left promiscuous mode
[ 47.240191][ T12] br0: port 2(eth1) entered disabled state
[ 47.244442][ T12] eth0: left allmulticast mode
[ 47.244892][ T12] eth0: left promiscuous mode
[ 47.245364][ T12] br0: port 1(eth0) entered disabled state
[ 47.314069][ T12] ==================================================================
[ 47.314413][ T12] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 47.314685][ T12] Read of size 1 at addr ffff8880059c96c4 by task kworker/u16:0/12
[ 47.314944][ T12]
[ 47.315033][ T12] CPU: 1 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 47.315038][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.315041][ T12] Workqueue: netns cleanup_net
[ 47.315051][ T12] Call Trace:
[ 47.315053][ T12]
[ 47.315056][ T12] dump_stack_lvl+0x82/0xc0
[ 47.315062][ T12] print_address_description.constprop.0+0x2c/0x3a0
[ 47.315071][ T12] ? kobject_put+0xbb/0xd0
[ 47.315075][ T12] print_report+0xb4/0x270
[ 47.315078][ T12] ? kobject_put+0xbb/0xd0
[ 47.315081][ T12] ? kasan_addr_to_slab+0x21/0x70
[ 47.315085][ T12] ? kobject_put+0xbb/0xd0
[ 47.315088][ T12] kasan_report+0xca/0x100
[ 47.315092][ T12] ? kobject_put+0xbb/0xd0
[ 47.315098][ T12] kobject_put+0xbb/0xd0
[ 47.315101][ T12] netdev_run_todo+0x5f0/0xc60
[ 47.315109][ T12] ? rtnl_is_locked+0x15/0x20
[ 47.315113][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 47.315117][ T12] ? generic_xdp_install+0x410/0x410
[ 47.315124][ T12] ops_undo_list+0x714/0x890
[ 47.315133][ T12] ? rtnl_net_dumpid_one+0x270/0x270
[ 47.315138][ T12] ? cleanup_net+0x2d6/0x8b0
[ 47.315147][ T12] cleanup_net+0x3b2/0x8b0
[ 47.315153][ T12] ? net_passive_dec+0x190/0x190
[ 47.315158][ T12] ? rcu_is_watching+0x12/0xb0
[ 47.315167][ T12] process_one_work+0xe35/0x1650
[ 47.315180][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 47.315190][ T12] ? assign_work+0x168/0x240
[ 47.315196][ T12] worker_thread+0x591/0xcf0
[ 47.315204][ T12] ? rescuer_thread+0xd10/0xd10
[ 47.315209][ T12] kthread+0x37b/0x5f0
[ 47.315217][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 47.315220][ T12] ? ret_from_fork+0x1b/0x270
[ 47.315227][ T12] ? __lock_release+0x5d/0x170
[ 47.315232][ T12] ? rcu_is_watching+0x12/0xb0
[ 47.315239][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 47.315244][ T12] ret_from_fork+0x1db/0x270
[ 47.315247][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 47.315252][ T12] ret_from_fork_asm+0x11/0x20
[ 47.315267][ T12]
[ 47.315269][ T12]
[ 47.325745][ T12] Allocated by task 262:
[ 47.325954][ T12] kasan_save_stack+0x24/0x40
[ 47.326236][ T12] kasan_save_track+0x14/0x30
[ 47.326512][ T12] __kasan_kmalloc+0x7b/0x90
[ 47.326783][ T12] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 47.327058][ T12] alloc_netdev_mqs+0x7d/0x1370
[ 47.327336][ T12] ip6_tnl_init_net+0x102/0x3f0
[ 47.327613][ T12] ops_init+0x189/0x550
[ 47.327823][ T12] setup_net+0xf1/0x380
[ 47.328041][ T12] copy_net_ns+0x253/0x510
[ 47.328307][ T12] create_new_namespaces+0x35f/0x900
[ 47.328586][ T12] unshare_nsproxy_namespaces+0x8a/0x1a0
[ 47.328870][ T12] ksys_unshare+0x2be/0x6e0
[ 47.329152][ T12] __x64_sys_unshare+0x31/0x40
[ 47.329418][ T12] do_syscall_64+0xc1/0xfd0
[ 47.329694][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 47.330037][ T12]
[ 47.330179][ T12] Freed by task 12:
[ 47.330377][ T12] kasan_save_stack+0x24/0x40
[ 47.330653][ T12] kasan_save_track+0x14/0x30
[ 47.330925][ T12] __kasan_save_free_info+0x3b/0x60
[ 47.331196][ T12] __kasan_slab_free+0x3f/0x60
[ 47.331466][ T12] kfree+0x21d/0x540
[ 47.331670][ T12] device_release+0x9c/0x210
[ 47.331957][ T12] kobject_cleanup+0xfe/0x360
[ 47.332235][ T12] netdev_run_todo+0x81f/0xc60
[ 47.332506][ T12] ops_undo_list+0x714/0x890
[ 47.332778][ T12] cleanup_net+0x3b2/0x8b0
[ 47.333050][ T12] process_one_work+0xe35/0x1650
[ 47.333321][ T12] worker_thread+0x591/0xcf0
[ 47.333592][ T12] kthread+0x37b/0x5f0
[ 47.333801][ T12] ret_from_fork+0x1db/0x270
[ 47.334076][ T12] ret_from_fork_asm+0x11/0x20
[ 47.334358][ T12]
[ 47.334495][ T12] The buggy address belongs to the object at ffff8880059c9000
[ 47.334495][ T12] which belongs to the cache kmalloc-4k of size 4096
[ 47.335147][ T12] The buggy address is located 1732 bytes inside of
[ 47.335147][ T12] freed 4096-byte region [ffff8880059c9000, ffff8880059ca000)
[ 47.335792][ T12]
[ 47.335937][ T12] The buggy address belongs to the physical page:
[ 47.336267][ T12] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x59c8
[ 47.336742][ T12] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 47.337151][ T12] flags: 0x80000000000040(head|node=0|zone=1)
[ 47.337494][ T12] page_type: f5(slab)
[ 47.337708][ T12] raw: 0080000000000040 ffff888001043700 ffffea00001f8a10 ffffea0000163010
[ 47.338213][ T12] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 47.338707][ T12] head: 0080000000000040 ffff888001043700 ffffea00001f8a10 ffffea0000163010
[ 47.339194][ T12] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 47.339677][ T12] head: 0080000000000003 ffffea0000167201 00000000ffffffff 00000000ffffffff
[ 47.340206][ T12] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 47.340668][ T12] page dumped because: kasan: bad access detected
[ 47.341032][ T12]
[ 47.341169][ T12] Memory state around the buggy address:
[ 47.341430][ T12] ffff8880059c9580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 47.341832][ T12] ffff8880059c9600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 47.342220][ T12] >ffff8880059c9680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 47.342607][ T12] ^
[ 47.342936][ T12] ffff8880059c9700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 47.343331][ T12] ffff8880059c9780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 47.343732][ T12] ==================================================================
[ 47.344356][ T12] Disabling lock debugging due to kernel taint
[ 47.344612][ T12] ------------[ cut here ]------------
[ 47.344791][ T12] refcount_t: underflow; use-after-free.
[ 47.344986][ T12] WARNING: CPU: 3 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 47.345408][ T12] Modules linked in:
[ 47.345615][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 47.346135][ T12] Tainted: [B]=BAD_PAGE
[ 47.346367][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.346701][ T12] Workqueue: netns cleanup_net
[ 47.347011][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 47.347374][ T12] Code: cc 38 03 80 fb 01 0f 87 29 33 d7 fe 83 e3 01 0f 85 51 ff ff ff c6 05 17 cc 38 03 01 90 48 c7 c7 40 ba c5 93 e8 62 d6 16 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 c0 9d a0 ff e9 ba fe ff ff
[ 47.348104][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 47.348327][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 47.348582][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 47.348877][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff2980934
[ 47.349138][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 47.349391][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 47.349655][ T12] FS: 0000000000000000(0000) GS:ffff8880d7088000(0000) knlGS:0000000000000000
[ 47.349963][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 47.350229][ T12] CR2: 00007f8e78f78000 CR3: 0000000037149001 CR4: 0000000000772ef0
[ 47.350509][ T12] PKRU: 55555554
[ 47.350641][ T12] Call Trace:
[ 47.350781][ T12]
[ 47.350874][ T12] netdev_run_todo+0x5f0/0xc60
[ 47.351049][ T12] ? rtnl_is_locked+0x15/0x20
[ 47.351224][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 47.351392][ T12] ? generic_xdp_install+0x410/0x410
[ 47.351563][ T12] ops_undo_list+0x714/0x890
[ 47.351727][ T12] ? rtnl_net_dumpid_one+0x270/0x270
[ 47.351898][ T12] ? cleanup_net+0x2d6/0x8b0
[ 47.352068][ T12] cleanup_net+0x3b2/0x8b0
[ 47.352251][ T12] ? net_passive_dec+0x190/0x190
[ 47.352421][ T12] ? rcu_is_watching+0x12/0xb0
[ 47.352590][ T12] process_one_work+0xe35/0x1650
[ 47.352769][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 47.352964][ T12] ? assign_work+0x168/0x240
[ 47.353166][ T12] worker_thread+0x591/0xcf0
[ 47.353336][ T12] ? rescuer_thread+0xd10/0xd10
[ 47.353503][ T12] kthread+0x37b/0x5f0
[ 47.353672][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 47.353926][ T12] ? ret_from_fork+0x1b/0x270
[ 47.354103][ T12] ? __lock_release+0x5d/0x170
[ 47.354273][ T12] ? rcu_is_watching+0x12/0xb0
[ 47.354441][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 47.354612][ T12] ret_from_fork+0x1db/0x270
[ 47.354796][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 47.355047][ T12] ret_from_fork_asm+0x11/0x20
[ 47.355325][ T12]
[ 47.355521][ T12] irq event stamp: 29711
[ 47.355718][ T12] hardirqs last enabled at (29711): [] finish_task_switch.isra.0+0x245/0x960
[ 47.356211][ T12] hardirqs last disabled at (29710): [] __schedule+0x94a/0x1b10
[ 47.356598][ T12] softirqs last enabled at (29538): [] handle_softirqs+0x352/0x610
[ 47.356908][ T12] softirqs last disabled at (29531): [] irq_exit_rcu+0xab/0x100
[ 47.357208][ T12] ---[ end trace 0000000000000000 ]---
[ 54.000489][ T526] eth0: renamed from r1h1
[ 54.219329][ T528] eth0: renamed from r2h1
[ 54.510545][ T531] eth2: renamed from r2h2
[ 54.796142][ T534] eth1: renamed from r2r1
[ 56.156124][ T549] br0: port 1(eth0) entered blocking state
[ 56.156536][ T549] br0: port 1(eth0) entered disabled state
[ 56.157421][ T549] eth0: entered allmulticast mode
[ 56.159450][ T549] eth0: entered promiscuous mode
[ 56.163137][ T46] br0: port 1(eth0) entered blocking state
[ 56.163515][ T46] br0: port 1(eth0) entered forwarding state
[ 56.240645][ T550] br0: port 2(eth1) entered blocking state
[ 56.241121][ T550] br0: port 2(eth1) entered disabled state
[ 56.241519][ T550] eth1: entered allmulticast mode
[ 56.243621][ T550] eth1: entered promiscuous mode
[ 56.247078][ T37] br0: port 2(eth1) entered blocking state
[ 56.247501][ T37] br0: port 2(eth1) entered forwarding state
[ 73.309388][ T12] eth1: left allmulticast mode
[ 73.309651][ T12] eth1: left promiscuous mode
[ 73.310018][ T12] br0: port 2(eth1) entered disabled state
[ 73.311339][ T12] eth0: left allmulticast mode
[ 73.311573][ T12] eth0: left promiscuous mode
[ 73.312035][ T12] br0: port 1(eth0) entered disabled state
[ 79.729087][ T758] eth0: renamed from r1h1
[ 79.909373][ T760] eth0: renamed from r2h1
[ 80.200172][ T763] eth2: renamed from r2h2
[ 80.484108][ T766] eth1: renamed from r2r1
[ 80.937257][ T771] br0: port 1(eth0) entered blocking state
[ 80.937578][ T771] br0: port 1(eth0) entered disabled state
[ 80.938169][ T771] eth0: entered allmulticast mode
[ 80.939401][ T771] eth0: entered promiscuous mode
[ 80.941481][ T37] br0: port 1(eth0) entered blocking state
[ 80.941735][ T37] br0: port 1(eth0) entered forwarding state
[ 81.012151][ T772] br0: port 2(eth1) entered blocking state
[ 81.012417][ T772] br0: port 2(eth1) entered disabled state
[ 81.012645][ T772] eth1: entered allmulticast mode
[ 81.014143][ T772] eth1: entered promiscuous mode
[ 81.015825][ T36] br0: port 2(eth1) entered blocking state
[ 81.016095][ T36] br0: port 2(eth1) entered forwarding state
[ 98.436497][ T12] eth1: left allmulticast mode
[ 98.436953][ T12] eth1: left promiscuous mode
[ 98.437727][ T12] br0: port 2(eth1) entered disabled state
[ 98.440081][ T12] eth0: left allmulticast mode
[ 98.440373][ T12] eth0: left promiscuous mode
[ 98.440822][ T12] br0: port 1(eth0) entered disabled state
[ 105.167940][ T989] eth0: renamed from r1h1
[ 105.439531][ T991] eth0: renamed from r2h1
[ 105.760240][ T994] eth2: renamed from r2h2
[ 106.051319][ T997] eth1: renamed from r2r1
[ 107.271340][ T1012] br0: port 1(eth0) entered blocking state
[ 107.271592][ T1012] br0: port 1(eth0) entered disabled state
[ 107.272085][ T1012] eth0: entered allmulticast mode
[ 107.273275][ T1012] eth0: entered promiscuous mode
[ 107.275276][ T46] br0: port 1(eth0) entered blocking state
[ 107.275485][ T46] br0: port 1(eth0) entered forwarding state
[ 107.358426][ T1013] br0: port 2(eth1) entered blocking state
[ 107.358691][ T1013] br0: port 2(eth1) entered disabled state
[ 107.358973][ T1013] eth1: entered allmulticast mode
[ 107.360175][ T1013] eth1: entered promiscuous mode
[ 107.361685][ T757] br0: port 2(eth1) entered blocking state
[ 107.361934][ T757] br0: port 2(eth1) entered forwarding state
[ 125.303225][ T12] eth1: left allmulticast mode
[ 125.303593][ T12] eth1: left promiscuous mode
[ 125.304115][ T12] br0: port 2(eth1) entered disabled state
[ 125.306401][ T12] eth0: left allmulticast mode
[ 125.306724][ T12] eth0: left promiscuous mode
[ 125.307194][ T12] br0: port 1(eth0) entered disabled state