[ 22.438220][ T300] 8021q: 802.1Q VLAN Support v1.8
[ 28.132556][ T345] br1: port 1(vx100) entered blocking state
[ 28.133545][ T345] br1: port 1(vx100) entered disabled state
[ 28.134526][ T345] vx100: entered allmulticast mode
[ 28.141342][ T345] vx100: entered promiscuous mode
[ 28.143040][ T345] br1: port 1(vx100) entered blocking state
[ 28.143982][ T345] br1: port 1(vx100) entered forwarding state
[ 28.456814][ T347] br1: port 2(veth1) entered blocking state
[ 28.457335][ T347] br1: port 2(veth1) entered disabled state
[ 28.457822][ T347] veth1: entered allmulticast mode
[ 28.461908][ T347] veth1: entered promiscuous mode
[ 28.570684][ T38] br1: port 2(veth1) entered blocking state
[ 28.571318][ T38] br1: port 2(veth1) entered forwarding state
[ 28.840443][ T350] br1: port 3(veth2) entered blocking state
[ 28.841003][ T350] br1: port 3(veth2) entered disabled state
[ 28.841461][ T350] veth2: entered allmulticast mode
[ 28.845721][ T350] veth2: entered promiscuous mode
[ 28.990207][ T37] br1: port 3(veth2) entered blocking state
[ 28.991038][ T37] br1: port 3(veth2) entered forwarding state
[ 34.667007][ T398] br2: port 1(w1) entered blocking state
[ 34.667382][ T398] br2: port 1(w1) entered disabled state
[ 34.667773][ T398] w1: entered allmulticast mode
[ 34.671379][ T398] w1: entered promiscuous mode
[ 35.550731][ T405] br2: port 2(vx100) entered blocking state
[ 35.551271][ T405] br2: port 2(vx100) entered disabled state
[ 35.551812][ T405] vx100: entered allmulticast mode
[ 35.555545][ T405] vx100: entered promiscuous mode
[ 35.556683][ T405] br2: port 2(vx100) entered blocking state
[ 35.557166][ T405] br2: port 2(vx100) entered forwarding state
[ 36.890539][ T35] br2: port 1(w1) entered blocking state
[ 36.891356][ T35] br2: port 1(w1) entered forwarding state
[ 40.722608][ T445] br2: port 1(w1) entered blocking state
[ 40.723198][ T445] br2: port 1(w1) entered disabled state
[ 40.723562][ T445] w1: entered allmulticast mode
[ 40.727073][ T445] w1: entered promiscuous mode
[ 41.663291][ T452] br2: port 2(vx100) entered blocking state
[ 41.663875][ T452] br2: port 2(vx100) entered disabled state
[ 41.664408][ T452] vx100: entered allmulticast mode
[ 41.668264][ T452] vx100: entered promiscuous mode
[ 41.669233][ T452] br2: port 2(vx100) entered blocking state
[ 41.669675][ T452] br2: port 2(vx100) entered forwarding state
[ 43.014378][ T129] br2: port 1(w1) entered blocking state
[ 43.015065][ T129] br2: port 1(w1) entered forwarding state
[ 58.404247][ T12] vx100: left allmulticast mode
[ 58.404993][ T12] vx100: left promiscuous mode
[ 58.405892][ T12] br2: port 2(vx100) entered disabled state
[ 58.427652][ T12] w1: left allmulticast mode
[ 58.428101][ T12] w1: left promiscuous mode
[ 58.428617][ T12] br2: port 1(w1) entered disabled state
[ 58.510917][ T12] ==================================================================
[ 58.511289][ T12] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 58.511595][ T12] Read of size 1 at addr ffff888010fd46ac by task kworker/u16:0/12
[ 58.511874][ T12]
[ 58.511973][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 58.511979][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 58.511982][ T12] Workqueue: netns cleanup_net
[ 58.511992][ T12] Call Trace:
[ 58.511994][ T12]
[ 58.511997][ T12] dump_stack_lvl+0x82/0xc0
[ 58.512004][ T12] print_address_description.constprop.0+0x2c/0x3a0
[ 58.512013][ T12] ? kobject_put+0xbb/0xd0
[ 58.512020][ T12] print_report+0xb4/0x270
[ 58.512024][ T12] ? kobject_put+0xbb/0xd0
[ 58.512027][ T12] ? kasan_addr_to_slab+0x21/0x70
[ 58.512030][ T12] ? kobject_put+0xbb/0xd0
[ 58.512033][ T12] kasan_report+0xca/0x100
[ 58.512037][ T12] ? kobject_put+0xbb/0xd0
[ 58.512043][ T12] kobject_put+0xbb/0xd0
[ 58.512046][ T12] netdev_run_todo+0x5f0/0xc60
[ 58.512051][ T12] ? rtnl_is_locked+0x15/0x20
[ 58.512056][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 58.512059][ T12] ? generic_xdp_install+0x410/0x410
[ 58.512065][ T12] ops_undo_list+0x714/0x890
[ 58.512071][ T12] ? netns_get+0x110/0x110
[ 58.512075][ T12] ? cleanup_net+0x2d6/0x830
[ 58.512083][ T12] cleanup_net+0x3b2/0x830
[ 58.512087][ T12] ? net_passive_dec+0x190/0x190
[ 58.512091][ T12] ? rcu_is_watching+0x12/0xb0
[ 58.512099][ T12] process_one_work+0xe35/0x1650
[ 58.512108][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 58.512114][ T12] ? assign_work+0x168/0x240
[ 58.512118][ T12] worker_thread+0x591/0xcf0
[ 58.512124][ T12] ? rescuer_thread+0xd10/0xd10
[ 58.512129][ T12] kthread+0x37b/0x5f0
[ 58.512135][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 58.512139][ T12] ? ret_from_fork+0x1b/0x270
[ 58.512143][ T12] ? __lock_release+0x5d/0x170
[ 58.512151][ T12] ? rcu_is_watching+0x12/0xb0
[ 58.512154][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 58.512158][ T12] ret_from_fork+0x1db/0x270
[ 58.512160][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 58.512163][ T12] ret_from_fork_asm+0x11/0x20
[ 58.512173][ T12]
[ 58.512174][ T12]
[ 58.519992][ T12] Allocated by task 424:
[ 58.520140][ T12] kasan_save_stack+0x24/0x40
[ 58.520343][ T12] kasan_save_track+0x14/0x30
[ 58.520556][ T12] __kasan_kmalloc+0x7b/0x90
[ 58.520761][ T12] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 58.520965][ T12] alloc_netdev_mqs+0x7d/0x1370
[ 58.521189][ T12] sit_init_net+0x169/0x550
[ 58.521418][ T12] ops_init+0x189/0x550
[ 58.521605][ T12] setup_net+0xf1/0x380
[ 58.521802][ T12] copy_net_ns+0x21a/0x380
[ 58.521982][ T12] create_new_namespaces+0x35f/0x900
[ 58.522199][ T12] unshare_nsproxy_namespaces+0x89/0x120
[ 58.522386][ T12] ksys_unshare+0x2a3/0x660
[ 58.522560][ T12] __x64_sys_unshare+0x31/0x40
[ 58.522730][ T12] do_syscall_64+0xc1/0xfd0
[ 58.522916][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 58.523157][ T12]
[ 58.523246][ T12] Freed by task 12:
[ 58.523383][ T12] kasan_save_stack+0x24/0x40
[ 58.523572][ T12] kasan_save_track+0x14/0x30
[ 58.523754][ T12] __kasan_save_free_info+0x3b/0x60
[ 58.523935][ T12] __kasan_slab_free+0x3f/0x60
[ 58.524097][ T12] kfree+0x21d/0x540
[ 58.524238][ T12] device_release+0x9c/0x210
[ 58.524423][ T12] kobject_cleanup+0xfe/0x360
[ 58.524588][ T12] netdev_run_todo+0x81f/0xc60
[ 58.524744][ T12] ops_undo_list+0x714/0x890
[ 58.524909][ T12] cleanup_net+0x3b2/0x830
[ 58.525087][ T12] process_one_work+0xe35/0x1650
[ 58.525312][ T12] worker_thread+0x591/0xcf0
[ 58.525494][ T12] kthread+0x37b/0x5f0
[ 58.525627][ T12] ret_from_fork+0x1db/0x270
[ 58.525814][ T12] ret_from_fork_asm+0x11/0x20
[ 58.525997][ T12]
[ 58.526085][ T12] The buggy address belongs to the object at ffff888010fd4000
[ 58.526085][ T12] which belongs to the cache kmalloc-4k of size 4096
[ 58.526518][ T12] The buggy address is located 1708 bytes inside of
[ 58.526518][ T12] freed 4096-byte region [ffff888010fd4000, ffff888010fd5000)
[ 58.526941][ T12]
[ 58.527030][ T12] The buggy address belongs to the physical page:
[ 58.527249][ T12] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10fd0
[ 58.527566][ T12] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 58.527847][ T12] flags: 0x80000000000040(head|node=0|zone=1)
[ 58.528081][ T12] page_type: f5(slab)
[ 58.528228][ T12] raw: 0080000000000040 ffff888001043700 ffffea0000078c10 ffffea00003f0610
[ 58.528553][ T12] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 58.528853][ T12] head: 0080000000000040 ffff888001043700 ffffea0000078c10 ffffea00003f0610
[ 58.529174][ T12] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 58.529503][ T12] head: 0080000000000003 ffffea000043f401 00000000ffffffff 00000000ffffffff
[ 58.529832][ T12] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 58.530164][ T12] page dumped because: kasan: bad access detected
[ 58.530426][ T12]
[ 58.530525][ T12] Memory state around the buggy address:
[ 58.530724][ T12] ffff888010fd4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 58.531010][ T12] ffff888010fd4600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 58.531307][ T12] >ffff888010fd4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 58.531600][ T12] ^
[ 58.531788][ T12] ffff888010fd4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 58.532071][ T12] ffff888010fd4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 58.532370][ T12] ==================================================================
[ 58.532774][ T12] Disabling lock debugging due to kernel taint
[ 58.533025][ T12] ------------[ cut here ]------------
[ 58.533209][ T12] refcount_t: underflow; use-after-free.
[ 58.533420][ T12] WARNING: CPU: 3 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 58.533758][ T12] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q sch_ingress vrf veth
[ 58.534168][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 58.534613][ T12] Tainted: [B]=BAD_PAGE
[ 58.534983][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 58.535249][ T12] Workqueue: netns cleanup_net
[ 58.535471][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 58.535870][ 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 c5 93 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
[ 58.536498][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 58.536728][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 58.537003][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 58.537276][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff28be134
[ 58.537543][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 58.537811][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 58.538113][ T12] FS: 0000000000000000(0000) GS:ffff88809af72000(0000) knlGS:0000000000000000
[ 58.538575][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 58.538822][ T12] CR2: 000056522c370278 CR3: 000000000f1bf002 CR4: 0000000000772ef0
[ 58.539428][ T12] PKRU: 55555554
[ 58.539591][ T12] Call Trace:
[ 58.539730][ T12]
[ 58.539842][ T12] netdev_run_todo+0x5f0/0xc60
[ 58.540025][ T12] ? rtnl_is_locked+0x15/0x20
[ 58.540324][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 58.540506][ T12] ? generic_xdp_install+0x410/0x410
[ 58.540685][ T12] ops_undo_list+0x714/0x890
[ 58.540874][ T12] ? netns_get+0x110/0x110
[ 58.541060][ T12] ? cleanup_net+0x2d6/0x830
[ 58.541377][ T12] cleanup_net+0x3b2/0x830
[ 58.541558][ T12] ? net_passive_dec+0x190/0x190
[ 58.541714][ T12] ? rcu_is_watching+0x12/0xb0
[ 58.541964][ T12] process_one_work+0xe35/0x1650
[ 58.542163][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 58.542336][ T12] ? assign_work+0x168/0x240
[ 58.542521][ T12] worker_thread+0x591/0xcf0
[ 58.542968][ T12] ? rescuer_thread+0xd10/0xd10
[ 58.543197][ T12] kthread+0x37b/0x5f0
[ 58.543341][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 58.543545][ T12] ? ret_from_fork+0x1b/0x270
[ 58.543719][ T12] ? __lock_release+0x5d/0x170
[ 58.543911][ T12] ? rcu_is_watching+0x12/0xb0
[ 58.544087][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 58.544293][ T12] ret_from_fork+0x1db/0x270
[ 58.544528][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 58.544775][ T12] ret_from_fork_asm+0x11/0x20
[ 58.544989][ T12]
[ 58.545136][ T12] irq event stamp: 67961
[ 58.545292][ T12] hardirqs last enabled at (67961): [] irqentry_exit+0x3b/0x80
[ 58.545594][ T12] hardirqs last disabled at (67960): [] handle_softirqs+0x47f/0x610
[ 58.546017][ T12] softirqs last enabled at (67568): [] handle_softirqs+0x352/0x610
[ 58.546525][ T12] softirqs last disabled at (66753): [] irq_exit_rcu+0xab/0x100
[ 58.546835][ T12] ---[ end trace 0000000000000000 ]---
[ 58.826631][ T12] vx100: left allmulticast mode
[ 58.827117][ T12] vx100: left promiscuous mode
[ 58.827458][ T12] br2: port 2(vx100) entered disabled state
[ 58.830605][ T12] w1: left allmulticast mode
[ 58.830885][ T12] w1: left promiscuous mode
[ 58.831222][ T12] br2: port 1(w1) entered disabled state
[ 60.666997][ T575] br1: port 3(veth2) entered disabled state
[ 60.780325][ T576] veth2: left allmulticast mode
[ 60.780699][ T576] veth2: left promiscuous mode
[ 60.781227][ T576] br1: port 3(veth2) entered disabled state
[ 60.956020][ T578] br1: port 2(veth1) entered disabled state
[ 61.050676][ T579] veth1: left allmulticast mode
[ 61.051291][ T579] veth1: left promiscuous mode
[ 61.051823][ T579] br1: port 2(veth1) entered disabled state
[ 61.128392][ T580] vx100: left allmulticast mode
[ 61.128650][ T580] vx100: left promiscuous mode
[ 61.129026][ T580] br1: port 1(vx100) entered disabled state