[ 18.345788][ T252] ip (252) used greatest stack depth: 24528 bytes left
[ 18.957845][ T262] ip (262) used greatest stack depth: 24480 bytes left
[ 26.885966][ T332] br1: port 1(vx1) entered blocking state
[ 26.886755][ T332] br1: port 1(vx1) entered disabled state
[ 26.887728][ T332] vx1: entered allmulticast mode
[ 26.894160][ T332] vx1: entered promiscuous mode
[ 26.897031][ T332] br1: port 1(vx1) entered blocking state
[ 26.897928][ T332] br1: port 1(vx1) entered forwarding state
[ 27.094888][ T333] br1: port 2(veth1) entered blocking state
[ 27.095517][ T333] br1: port 2(veth1) entered disabled state
[ 27.096238][ T333] veth1: entered allmulticast mode
[ 27.104055][ T333] veth1: entered promiscuous mode
[ 27.302355][ T46] br1: port 2(veth1) entered blocking state
[ 27.303231][ T46] br1: port 2(veth1) entered forwarding state
[ 27.639493][ T336] br1: port 3(veth2) entered blocking state
[ 27.640022][ T336] br1: port 3(veth2) entered disabled state
[ 27.640753][ T336] veth2: entered allmulticast mode
[ 27.644661][ T336] veth2: entered promiscuous mode
[ 27.809977][ T102] br1: port 3(veth2) entered blocking state
[ 27.810830][ T102] br1: port 3(veth2) entered forwarding state
[ 32.935680][ T380] ip (380) used greatest stack depth: 24216 bytes left
[ 33.052176][ T381] br2: port 1(w1) entered blocking state
[ 33.052605][ T381] br2: port 1(w1) entered disabled state
[ 33.053025][ T381] w1: entered allmulticast mode
[ 33.056788][ T381] w1: entered promiscuous mode
[ 33.888174][ T387] br2: port 2(vx2) entered blocking state
[ 33.889151][ T387] br2: port 2(vx2) entered disabled state
[ 33.889543][ T387] vx2: entered allmulticast mode
[ 33.892969][ T387] vx2: entered promiscuous mode
[ 33.894525][ T387] br2: port 2(vx2) entered blocking state
[ 33.894910][ T387] br2: port 2(vx2) entered forwarding state
[ 35.003074][ T102] br2: port 1(w1) entered blocking state
[ 35.004037][ T102] br2: port 1(w1) entered forwarding state
[ 37.933348][ T420] br2: port 1(w1) entered blocking state
[ 37.933735][ T420] br2: port 1(w1) entered disabled state
[ 37.934108][ T420] w1: entered allmulticast mode
[ 37.937663][ T420] w1: entered promiscuous mode
[ 38.762654][ T426] br2: port 2(vx2) entered blocking state
[ 38.763064][ T426] br2: port 2(vx2) entered disabled state
[ 38.763466][ T426] vx2: entered allmulticast mode
[ 38.767700][ T426] vx2: entered promiscuous mode
[ 38.769088][ T426] br2: port 2(vx2) entered blocking state
[ 38.769534][ T426] br2: port 2(vx2) entered forwarding state
[ 39.920413][ T72] br2: port 1(w1) entered blocking state
[ 39.921113][ T72] br2: port 1(w1) entered forwarding state
[ 51.680626][ T499] GACT probability NOT on
[ 101.713276][ T12] vx2: left allmulticast mode
[ 101.714105][ T12] vx2: left promiscuous mode
[ 101.715230][ T12] br2: port 2(vx2) entered disabled state
[ 101.723144][ T12] w1: left allmulticast mode
[ 101.723838][ T12] w1: left promiscuous mode
[ 101.725864][ T12] br2: port 1(w1) entered disabled state
[ 101.810683][ T12] ==================================================================
[ 101.811056][ T12] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 101.811387][ T12] Read of size 1 at addr ffff88800f4b46ac by task kworker/u16:0/12
[ 101.811692][ T12]
[ 101.811849][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 101.811858][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 101.811862][ T12] Workqueue: netns cleanup_net
[ 101.811878][ T12] Call Trace:
[ 101.811884][ T12]
[ 101.811889][ T12] dump_stack_lvl+0x82/0xc0
[ 101.811902][ T12] print_address_description.constprop.0+0x2c/0x3a0
[ 101.811917][ T12] ? kobject_put+0xbb/0xd0
[ 101.811923][ T12] print_report+0xb4/0x270
[ 101.811927][ T12] ? kobject_put+0xbb/0xd0
[ 101.811932][ T12] ? kasan_addr_to_slab+0x21/0x70
[ 101.811938][ T12] ? kobject_put+0xbb/0xd0
[ 101.811943][ T12] kasan_report+0xca/0x100
[ 101.811949][ T12] ? kobject_put+0xbb/0xd0
[ 101.811959][ T12] kobject_put+0xbb/0xd0
[ 101.811964][ T12] netdev_run_todo+0x5f0/0xc60
[ 101.811973][ T12] ? irqentry_exit+0x3b/0x80
[ 101.811984][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 101.811989][ T12] ? generic_xdp_install+0x410/0x410
[ 101.811997][ T12] ? mutex_is_locked+0x1c/0x50
[ 101.812007][ T12] ops_undo_list+0x714/0x890
[ 101.812012][ T12] ? netns_get+0x110/0x110
[ 101.812015][ T12] ? cleanup_net+0x2d6/0x830
[ 101.812020][ T12] cleanup_net+0x3b2/0x830
[ 101.812024][ T12] ? net_passive_dec+0x190/0x190
[ 101.812028][ T12] ? rcu_is_watching+0x12/0xb0
[ 101.812038][ T12] process_one_work+0xe35/0x1650
[ 101.812047][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 101.812053][ T12] ? assign_work+0x168/0x240
[ 101.812057][ T12] worker_thread+0x591/0xcf0
[ 101.812062][ T12] ? rescuer_thread+0xd10/0xd10
[ 101.812066][ T12] kthread+0x37b/0x5f0
[ 101.812072][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 101.812074][ T12] ? ret_from_fork+0x1b/0x270
[ 101.812081][ T12] ? __lock_release+0x5d/0x170
[ 101.812088][ T12] ? rcu_is_watching+0x12/0xb0
[ 101.812092][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 101.812095][ T12] ret_from_fork+0x1db/0x270
[ 101.812100][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 101.812103][ T12] ret_from_fork_asm+0x11/0x20
[ 101.812113][ T12]
[ 101.812115][ T12]
[ 101.820373][ T12] Allocated by task 399:
[ 101.820562][ T12] kasan_save_stack+0x24/0x40
[ 101.820754][ T12] kasan_save_track+0x14/0x30
[ 101.820992][ T12] __kasan_kmalloc+0x7b/0x90
[ 101.821231][ T12] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 101.821509][ T12] alloc_netdev_mqs+0x7d/0x1370
[ 101.821722][ T12] sit_init_net+0x169/0x550
[ 101.821946][ T12] ops_init+0x189/0x550
[ 101.822088][ T12] setup_net+0xf1/0x380
[ 101.822249][ T12] copy_net_ns+0x21a/0x380
[ 101.822460][ T12] create_new_namespaces+0x35f/0x900
[ 101.822723][ T12] unshare_nsproxy_namespaces+0x89/0x120
[ 101.822982][ T12] ksys_unshare+0x2a3/0x660
[ 101.823191][ T12] __x64_sys_unshare+0x31/0x40
[ 101.823376][ T12] do_syscall_64+0xc1/0xfd0
[ 101.823568][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 101.823802][ T12]
[ 101.823897][ T12] Freed by task 12:
[ 101.824026][ T12] kasan_save_stack+0x24/0x40
[ 101.824198][ T12] kasan_save_track+0x14/0x30
[ 101.824378][ T12] __kasan_save_free_info+0x3b/0x60
[ 101.824552][ T12] __kasan_slab_free+0x3f/0x60
[ 101.824722][ T12] kfree+0x21d/0x540
[ 101.824860][ T12] device_release+0x9c/0x210
[ 101.825047][ T12] kobject_cleanup+0xfe/0x360
[ 101.825222][ T12] netdev_run_todo+0x81f/0xc60
[ 101.825431][ T12] ops_undo_list+0x714/0x890
[ 101.825600][ T12] cleanup_net+0x3b2/0x830
[ 101.825784][ T12] process_one_work+0xe35/0x1650
[ 101.825963][ T12] worker_thread+0x591/0xcf0
[ 101.826135][ T12] kthread+0x37b/0x5f0
[ 101.826300][ T12] ret_from_fork+0x1db/0x270
[ 101.826488][ T12] ret_from_fork_asm+0x11/0x20
[ 101.826669][ T12]
[ 101.826758][ T12] The buggy address belongs to the object at ffff88800f4b4000
[ 101.826758][ T12] which belongs to the cache kmalloc-4k of size 4096
[ 101.827180][ T12] The buggy address is located 1708 bytes inside of
[ 101.827180][ T12] freed 4096-byte region [ffff88800f4b4000, ffff88800f4b5000)
[ 101.827620][ T12]
[ 101.827715][ T12] The buggy address belongs to the physical page:
[ 101.827932][ T12] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xf4b0
[ 101.828265][ T12] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 101.828553][ T12] flags: 0x80000000000040(head|node=0|zone=1)
[ 101.828783][ T12] page_type: f5(slab)
[ 101.828924][ T12] raw: 0080000000000040 ffff888001043700 ffffea00001d8610 ffffea000022a210
[ 101.829264][ T12] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 101.829579][ T12] head: 0080000000000040 ffff888001043700 ffffea00001d8610 ffffea000022a210
[ 101.829893][ T12] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 101.830213][ T12] head: 0080000000000003 ffffea00003d2c01 00000000ffffffff 00000000ffffffff
[ 101.830525][ T12] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 101.830851][ T12] page dumped because: kasan: bad access detected
[ 101.831079][ T12]
[ 101.831167][ T12] Memory state around the buggy address:
[ 101.831344][ T12] ffff88800f4b4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 101.831609][ T12] ffff88800f4b4600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 101.831860][ T12] >ffff88800f4b4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 101.832117][ T12] ^
[ 101.832284][ T12] ffff88800f4b4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 101.832538][ T12] ffff88800f4b4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 101.832799][ T12] ==================================================================
[ 101.833079][ T12] Disabling lock debugging due to kernel taint
[ 101.833314][ T12] ------------[ cut here ]------------
[ 101.833487][ T12] refcount_t: underflow; use-after-free.
[ 101.833685][ T12] WARNING: CPU: 0 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 101.834036][ T12] Modules linked in: act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
[ 101.834485][ T12] CPU: 0 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 101.834890][ T12] Tainted: [B]=BAD_PAGE
[ 101.835031][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 101.835266][ T12] Workqueue: netns cleanup_net
[ 101.835462][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 101.835702][ T12] Code: 7d 93 02 80 fb 01 0f 87 bb 99 d9 fe 83 e3 01 0f 85 51 ff ff ff c6 05 a8 7d 93 02 01 90 48 c7 c7 60 8d a5 9b e8 32 bf 18 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 b0 63 a1 ff e9 ba fe ff ff
[ 101.836343][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 101.836578][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 101.836848][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 101.837117][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff387e134
[ 101.837391][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 101.837677][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 101.837948][ T12] FS: 0000000000000000(0000) GS:ffff8880989f2000(0000) knlGS:0000000000000000
[ 101.838266][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 101.838485][ T12] CR2: 00007ffe575507c8 CR3: 0000000005075006 CR4: 0000000000772ef0
[ 101.838747][ T12] PKRU: 55555554
[ 101.838897][ T12] Call Trace:
[ 101.839035][ T12]
[ 101.839135][ T12] netdev_run_todo+0x5f0/0xc60
[ 101.839335][ T12] ? irqentry_exit+0x3b/0x80
[ 101.839519][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 101.839695][ T12] ? generic_xdp_install+0x410/0x410
[ 101.839876][ T12] ? mutex_is_locked+0x1c/0x50
[ 101.840054][ T12] ops_undo_list+0x714/0x890
[ 101.840251][ T12] ? netns_get+0x110/0x110
[ 101.840420][ T12] ? cleanup_net+0x2d6/0x830
[ 101.840696][ T12] cleanup_net+0x3b2/0x830
[ 101.840871][ T12] ? net_passive_dec+0x190/0x190
[ 101.841051][ T12] ? rcu_is_watching+0x12/0xb0
[ 101.841319][ T12] process_one_work+0xe35/0x1650
[ 101.841498][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 101.841667][ T12] ? assign_work+0x168/0x240
[ 101.841926][ T12] worker_thread+0x591/0xcf0
[ 101.842102][ T12] ? rescuer_thread+0xd10/0xd10
[ 101.842276][ T12] kthread+0x37b/0x5f0
[ 101.842407][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 101.842576][ T12] ? ret_from_fork+0x1b/0x270
[ 101.842746][ T12] ? __lock_release+0x5d/0x170
[ 101.842915][ T12] ? rcu_is_watching+0x12/0xb0
[ 101.843084][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 101.843263][ T12] ret_from_fork+0x1db/0x270
[ 101.843614][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 101.843795][ T12] ret_from_fork_asm+0x11/0x20
[ 101.843977][ T12]
[ 101.844112][ T12] irq event stamp: 43885
[ 101.844254][ T12] hardirqs last enabled at (43885): [] irqentry_exit+0x3b/0x80
[ 101.844734][ T12] hardirqs last disabled at (43884): [] handle_softirqs+0x47f/0x610
[ 101.845036][ T12] softirqs last enabled at (43800): [] handle_softirqs+0x352/0x610
[ 101.845348][ T12] softirqs last disabled at (43791): [] irq_exit_rcu+0xab/0x100
[ 101.845656][ T12] ---[ end trace 0000000000000000 ]---
[ 102.136452][ T12] vx2: left allmulticast mode
[ 102.136791][ T12] vx2: left promiscuous mode
[ 102.137345][ T12] br2: port 2(vx2) entered disabled state
[ 102.141039][ T12] w1: left allmulticast mode
[ 102.141830][ T12] w1: left promiscuous mode
[ 102.142504][ T12] br2: port 1(w1) entered disabled state
[ 104.127911][ T622] br1: port 3(veth2) entered disabled state
[ 104.209485][ T623] veth2: left allmulticast mode
[ 104.209767][ T623] veth2: left promiscuous mode
[ 104.210121][ T623] br1: port 3(veth2) entered disabled state
[ 104.437670][ T625] br1: port 2(veth1) entered disabled state
[ 104.522489][ T626] veth1: left allmulticast mode
[ 104.522789][ T626] veth1: left promiscuous mode
[ 104.523163][ T626] br1: port 2(veth1) entered disabled state
[ 104.617190][ T627] vx1: left allmulticast mode
[ 104.617513][ T627] vx1: left promiscuous mode
[ 104.617857][ T627] br1: port 1(vx1) entered disabled state