[ 21.266166][ T250] IPVS: Registered protocols (TCP)
[ 21.268436][ T250] IPVS: Connection hash table configured (size=4096, memory=32Kbytes)
[ 21.270533][ T250] IPVS: ipvs loaded.
[ 25.355513][ T272] ip (272) used greatest stack depth: 23368 bytes left
[ 27.160355][ T280] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 27.516775][ T281] br0: port 1(veth01) entered blocking state
[ 27.518059][ T281] br0: port 1(veth01) entered disabled state
[ 27.519006][ T281] veth01: entered allmulticast mode
[ 27.525241][ T281] veth01: entered promiscuous mode
[ 27.889676][ T282] br0: port 2(veth02) entered blocking state
[ 27.890160][ T282] br0: port 2(veth02) entered disabled state
[ 27.890914][ T282] veth02: entered allmulticast mode
[ 27.895066][ T282] veth02: entered promiscuous mode
[ 28.786521][ T38] br0: port 1(veth01) entered blocking state
[ 28.787205][ T38] br0: port 1(veth01) entered forwarding state
[ 30.739127][ T47] br0: port 2(veth02) entered blocking state
[ 30.739836][ T47] br0: port 2(veth02) entered forwarding state
[ 33.418451][ T300] IPVS: [rr] scheduler registered.
[ 33.431776][ T60] IPVS: starting estimator thread 0...
[ 33.499425][ T301] IPVS: using max 57 ests per chain, 136800 per kthread
[ 36.267588][ T12] veth02: left allmulticast mode
[ 36.268131][ T12] veth02: left promiscuous mode
[ 36.268763][ T12] br0: port 2(veth02) entered disabled state
[ 36.282253][ T12] veth01: left allmulticast mode
[ 36.282698][ T12] veth01: left promiscuous mode
[ 36.283256][ T12] br0: port 1(veth01) entered disabled state
[ 36.338754][ T12] ==================================================================
[ 36.339132][ T12] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 36.339454][ T12] Read of size 1 at addr ffff888004e046ac by task kworker/u16:0/12
[ 36.339799][ T12]
[ 36.339919][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 36.339924][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.339931][ T12] Workqueue: netns cleanup_net
[ 36.339941][ T12] Call Trace:
[ 36.339944][ T12]
[ 36.339948][ T12] dump_stack_lvl+0x82/0xc0
[ 36.339955][ T12] print_address_description.constprop.0+0x2c/0x3a0
[ 36.339966][ T12] ? kobject_put+0xbb/0xd0
[ 36.339971][ T12] print_report+0xb4/0x270
[ 36.339975][ T12] ? kobject_put+0xbb/0xd0
[ 36.339978][ T12] ? kasan_addr_to_slab+0x21/0x70
[ 36.339982][ T12] ? kobject_put+0xbb/0xd0
[ 36.339985][ T12] kasan_report+0xca/0x100
[ 36.339990][ T12] ? kobject_put+0xbb/0xd0
[ 36.339996][ T12] kobject_put+0xbb/0xd0
[ 36.339999][ T12] netdev_run_todo+0x5f0/0xc60
[ 36.340005][ T12] ? rtnl_is_locked+0x15/0x20
[ 36.340009][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 36.340013][ T12] ? generic_xdp_install+0x410/0x410
[ 36.340020][ T12] ops_undo_list+0x714/0x890
[ 36.340028][ T12] ? netns_get+0x110/0x110
[ 36.340031][ T12] ? cleanup_net+0x2d6/0x830
[ 36.340036][ T12] cleanup_net+0x3b2/0x830
[ 36.340039][ T12] ? net_passive_dec+0x190/0x190
[ 36.340043][ T12] ? rcu_is_watching+0x12/0xb0
[ 36.340050][ T12] process_one_work+0xe35/0x1650
[ 36.340059][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 36.340064][ T12] ? assign_work+0x168/0x240
[ 36.340069][ T12] worker_thread+0x591/0xcf0
[ 36.340074][ T12] ? rescuer_thread+0xd10/0xd10
[ 36.340078][ T12] kthread+0x37b/0x5f0
[ 36.340082][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 36.340085][ T12] ? ret_from_fork+0x1b/0x270
[ 36.340092][ T12] ? __lock_release+0x5d/0x170
[ 36.340100][ T12] ? rcu_is_watching+0x12/0xb0
[ 36.340103][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 36.340106][ T12] ret_from_fork+0x1db/0x270
[ 36.340109][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 36.340112][ T12] ret_from_fork_asm+0x11/0x20
[ 36.340122][ T12]
[ 36.340123][ T12]
[ 36.347283][ T12] Allocated by task 258:
[ 36.347417][ T12] kasan_save_stack+0x24/0x40
[ 36.347601][ T12] kasan_save_track+0x14/0x30
[ 36.347802][ T12] __kasan_kmalloc+0x7b/0x90
[ 36.347990][ T12] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 36.348171][ T12] alloc_netdev_mqs+0x7d/0x1370
[ 36.348356][ T12] sit_init_net+0x169/0x550
[ 36.348533][ T12] ops_init+0x189/0x550
[ 36.348664][ T12] setup_net+0xf1/0x380
[ 36.348817][ T12] copy_net_ns+0x21a/0x380
[ 36.348994][ T12] create_new_namespaces+0x35f/0x900
[ 36.349166][ T12] unshare_nsproxy_namespaces+0x89/0x120
[ 36.349351][ T12] ksys_unshare+0x2a3/0x660
[ 36.349522][ T12] __x64_sys_unshare+0x31/0x40
[ 36.349687][ T12] do_syscall_64+0xc1/0xfd0
[ 36.350012][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 36.350239][ T12]
[ 36.350328][ T12] Freed by task 12:
[ 36.350464][ T12] kasan_save_stack+0x24/0x40
[ 36.350668][ T12] kasan_save_track+0x14/0x30
[ 36.350859][ T12] __kasan_save_free_info+0x3b/0x60
[ 36.351062][ T12] __kasan_slab_free+0x3f/0x60
[ 36.351261][ T12] kfree+0x21d/0x540
[ 36.351397][ T12] device_release+0x9c/0x210
[ 36.351576][ T12] kobject_cleanup+0xfe/0x360
[ 36.351762][ T12] netdev_run_todo+0x81f/0xc60
[ 36.351941][ T12] ops_undo_list+0x714/0x890
[ 36.352120][ T12] cleanup_net+0x3b2/0x830
[ 36.352300][ T12] process_one_work+0xe35/0x1650
[ 36.352483][ T12] worker_thread+0x591/0xcf0
[ 36.352656][ T12] kthread+0x37b/0x5f0
[ 36.352790][ T12] ret_from_fork+0x1db/0x270
[ 36.352966][ T12] ret_from_fork_asm+0x11/0x20
[ 36.353157][ T12]
[ 36.353257][ T12] The buggy address belongs to the object at ffff888004e04000
[ 36.353257][ T12] which belongs to the cache kmalloc-4k of size 4096
[ 36.353674][ T12] The buggy address is located 1708 bytes inside of
[ 36.353674][ T12] freed 4096-byte region [ffff888004e04000, ffff888004e05000)
[ 36.354111][ T12]
[ 36.354199][ T12] The buggy address belongs to the physical page:
[ 36.354412][ T12] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4e00
[ 36.354717][ T12] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 36.354988][ T12] flags: 0x80000000000040(head|node=0|zone=1)
[ 36.355219][ T12] page_type: f5(slab)
[ 36.355358][ T12] raw: 0080000000000040 ffff888001043700 ffffea0000299210 ffffea0000148e10
[ 36.355667][ T12] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 36.355972][ T12] head: 0080000000000040 ffff888001043700 ffffea0000299210 ffffea0000148e10
[ 36.356290][ T12] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 36.356604][ T12] head: 0080000000000003 ffffea0000138001 00000000ffffffff 00000000ffffffff
[ 36.356910][ T12] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 36.357222][ T12] page dumped because: kasan: bad access detected
[ 36.357440][ T12]
[ 36.357528][ T12] Memory state around the buggy address:
[ 36.357700][ T12] ffff888004e04580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 36.357952][ T12] ffff888004e04600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 36.358212][ T12] >ffff888004e04680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 36.358463][ T12] ^
[ 36.358629][ T12] ffff888004e04700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 36.358880][ T12] ffff888004e04780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 36.359131][ T12] ==================================================================
[ 36.359427][ T12] Disabling lock debugging due to kernel taint
[ 36.359639][ T12] ------------[ cut here ]------------
[ 36.359867][ T12] refcount_t: underflow; use-after-free.
[ 36.360090][ T12] WARNING: CPU: 3 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 36.360410][ T12] Modules linked in: ip_vs_rr bridge stp llc veth ip_vs nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
[ 36.360776][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 36.361185][ T12] Tainted: [B]=BAD_PAGE
[ 36.361336][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.361588][ T12] Workqueue: netns cleanup_net
[ 36.361768][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 36.362011][ T12] Code: 83 90 02 80 fb 01 0f 87 95 6b d6 fe 83 e3 01 0f 85 51 ff ff ff c6 05 b1 83 90 02 01 90 48 c7 c7 a0 de 45 96 e8 c2 8b 15 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 f0 34 a1 ff e9 ba fe ff ff
[ 36.362654][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 36.362981][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 36.363242][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 36.363511][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff2dbe220
[ 36.363774][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 36.364046][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 36.364324][ T12] FS: 0000000000000000(0000) GS:ffff88809856c000(0000) knlGS:0000000000000000
[ 36.364634][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 36.364868][ T12] CR2: 00007fff768c6798 CR3: 000000000a4d1006 CR4: 0000000000772ef0
[ 36.365146][ T12] PKRU: 55555554
[ 36.365280][ T12] Call Trace:
[ 36.365420][ T12]
[ 36.365516][ T12] netdev_run_todo+0x5f0/0xc60
[ 36.365693][ T12] ? rtnl_is_locked+0x15/0x20
[ 36.365870][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 36.366051][ T12] ? generic_xdp_install+0x410/0x410
[ 36.366224][ T12] ops_undo_list+0x714/0x890
[ 36.366406][ T12] ? netns_get+0x110/0x110
[ 36.366582][ T12] ? cleanup_net+0x2d6/0x830
[ 36.366841][ T12] cleanup_net+0x3b2/0x830
[ 36.367125][ T12] ? net_passive_dec+0x190/0x190
[ 36.367295][ T12] ? rcu_is_watching+0x12/0xb0
[ 36.367577][ T12] process_one_work+0xe35/0x1650
[ 36.367758][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 36.367927][ T12] ? assign_work+0x168/0x240
[ 36.368093][ T12] worker_thread+0x591/0xcf0
[ 36.368271][ T12] ? rescuer_thread+0xd10/0xd10
[ 36.368445][ T12] kthread+0x37b/0x5f0
[ 36.368574][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 36.368745][ T12] ? ret_from_fork+0x1b/0x270
[ 36.368923][ T12] ? __lock_release+0x5d/0x170
[ 36.369097][ T12] ? rcu_is_watching+0x12/0xb0
[ 36.369360][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 36.369536][ T12] ret_from_fork+0x1db/0x270
[ 36.369728][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 36.369984][ T12] ret_from_fork_asm+0x11/0x20
[ 36.370254][ T12]
[ 36.370394][ T12] irq event stamp: 18129
[ 36.370526][ T12] hardirqs last enabled at (18129): [] irqentry_exit+0x3b/0x80
[ 36.370826][ T12] hardirqs last disabled at (18128): [] handle_softirqs+0x47f/0x610
[ 36.371130][ T12] softirqs last enabled at (18024): [] handle_softirqs+0x352/0x610
[ 36.371535][ T12] softirqs last disabled at (18017): [] irq_exit_rcu+0xab/0x100
[ 36.371921][ T12] ---[ end trace 0000000000000000 ]---
[ 36.774077][ T12] IPVS: stop unused estimator thread 0...
[ 41.329013][ T365] br0: port 1(veth01) entered blocking state
[ 41.329528][ T365] br0: port 1(veth01) entered disabled state
[ 41.329951][ T365] veth01: entered allmulticast mode
[ 41.333987][ T365] veth01: entered promiscuous mode
[ 41.541959][ T366] br0: port 2(veth02) entered blocking state
[ 41.542491][ T366] br0: port 2(veth02) entered disabled state
[ 41.542955][ T366] veth02: entered allmulticast mode
[ 41.546296][ T366] veth02: entered promiscuous mode
[ 42.075806][ T38] br0: port 1(veth01) entered blocking state
[ 42.076138][ T38] br0: port 1(veth01) entered forwarding state
[ 43.323403][ T35] br0: port 2(veth02) entered blocking state
[ 43.323718][ T35] br0: port 2(veth02) entered forwarding state
[ 45.188908][ T10] IPVS: starting estimator thread 0...
[ 45.252374][ T382] IPVS: using max 116 ests per chain, 278400 per kthread
[ 45.747372][ T385] br0: port 2(veth02) entered disabled state
[ 45.750855][ T385] veth02 (unregistering): left allmulticast mode
[ 45.751186][ T385] veth02 (unregistering): left promiscuous mode
[ 45.751461][ T385] br0: port 2(veth02) entered disabled state
[ 46.821634][ T12] veth01: left allmulticast mode
[ 46.821882][ T12] veth01: left promiscuous mode
[ 46.822389][ T12] br0: port 1(veth01) entered disabled state
[ 47.244162][ T12] IPVS: stop unused estimator thread 0...
[ 51.856630][ T444] br0: port 1(veth01) entered blocking state
[ 51.856956][ T444] br0: port 1(veth01) entered disabled state
[ 51.857243][ T444] veth01: entered allmulticast mode
[ 51.859598][ T444] veth01: entered promiscuous mode
[ 52.047909][ T445] br0: port 2(veth02) entered blocking state
[ 52.048364][ T445] br0: port 2(veth02) entered disabled state
[ 52.048775][ T445] veth02: entered allmulticast mode
[ 52.051960][ T445] veth02: entered promiscuous mode
[ 52.629654][ T35] br0: port 1(veth01) entered blocking state
[ 52.629978][ T35] br0: port 1(veth01) entered forwarding state
[ 53.858622][ T47] br0: port 2(veth02) entered blocking state
[ 53.858966][ T47] br0: port 2(veth02) entered forwarding state
[ 55.592029][ T459] ipip: IPv4 and MPLS over IPv4 tunneling driver
[ 56.410480][ T10] IPVS: starting estimator thread 0...
[ 56.477374][ T468] IPVS: using max 116 ests per chain, 278400 per kthread
[ 58.353151][ T12] veth02: left allmulticast mode
[ 58.353488][ T12] veth02: left promiscuous mode
[ 58.353913][ T12] br0: port 2(veth02) entered disabled state
[ 58.355473][ T12] veth01: left allmulticast mode
[ 58.355760][ T12] veth01: left promiscuous mode
[ 58.356106][ T12] br0: port 1(veth01) entered disabled state
[ 58.758951][ T12] IPVS: stop unused estimator thread 0...