[ 15.621983][ T250] ip (250) used greatest stack depth: 23888 bytes left
[ 16.693640][ T274] ip (274) used greatest stack depth: 23776 bytes left
[ 19.652617][ T302] 8021q: 802.1Q VLAN Support v1.8
[ 25.345962][ T352] br1: port 1(vx10) entered blocking state
[ 25.346589][ T352] br1: port 1(vx10) entered disabled state
[ 25.347089][ T352] vx10: entered allmulticast mode
[ 25.350572][ T352] vx10: entered promiscuous mode
[ 25.351458][ T352] br1: port 1(vx10) entered blocking state
[ 25.351945][ T352] br1: port 1(vx10) entered forwarding state
[ 25.929697][ T357] br1: port 2(vx20) entered blocking state
[ 25.930371][ T357] br1: port 2(vx20) entered disabled state
[ 25.930812][ T357] vx20: entered allmulticast mode
[ 25.934171][ T357] vx20: entered promiscuous mode
[ 25.935722][ T357] br1: port 2(vx20) entered blocking state
[ 25.936183][ T357] br1: port 2(vx20) entered forwarding state
[ 26.146368][ T359] br1: port 3(veth1) entered blocking state
[ 26.146813][ T359] br1: port 3(veth1) entered disabled state
[ 26.147226][ T359] veth1: entered allmulticast mode
[ 26.151797][ T359] veth1: entered promiscuous mode
[ 26.266659][ T36] br1: port 3(veth1) entered blocking state
[ 26.267512][ T36] br1: port 3(veth1) entered forwarding state
[ 26.739410][ T365] br1: port 4(veth2) entered blocking state
[ 26.740014][ T365] br1: port 4(veth2) entered disabled state
[ 26.740429][ T365] veth2: entered allmulticast mode
[ 26.743746][ T365] veth2: entered promiscuous mode
[ 26.866620][ T90] br1: port 4(veth2) entered blocking state
[ 26.867083][ T90] br1: port 4(veth2) entered forwarding state
[ 32.135803][ T414] br2: port 1(w1) entered blocking state
[ 32.136255][ T414] br2: port 1(w1) entered disabled state
[ 32.136708][ T414] w1: entered allmulticast mode
[ 32.140969][ T414] w1: entered promiscuous mode
[ 33.143924][ T422] br2: port 2(vx10) entered blocking state
[ 33.144377][ T422] br2: port 2(vx10) entered disabled state
[ 33.144831][ T422] vx10: entered allmulticast mode
[ 33.148240][ T422] vx10: entered promiscuous mode
[ 33.149061][ T422] br2: port 2(vx10) entered blocking state
[ 33.149472][ T422] br2: port 2(vx10) entered forwarding state
[ 34.115545][ T429] br2: port 3(vx20) entered blocking state
[ 34.115991][ T429] br2: port 3(vx20) entered disabled state
[ 34.116447][ T429] vx20: entered allmulticast mode
[ 34.121458][ T429] vx20: entered promiscuous mode
[ 34.138992][ T429] br2: port 3(vx20) entered blocking state
[ 34.139811][ T429] br2: port 3(vx20) entered forwarding state
[ 35.233868][ T45] br2: port 1(w1) entered blocking state
[ 35.234581][ T45] br2: port 1(w1) entered forwarding state
[ 38.914632][ T471] br2: port 1(w1) entered blocking state
[ 38.915042][ T471] br2: port 1(w1) entered disabled state
[ 38.915456][ T471] w1: entered allmulticast mode
[ 38.919621][ T471] w1: entered promiscuous mode
[ 39.843332][ T479] br2: port 2(vx10) entered blocking state
[ 39.843851][ T479] br2: port 2(vx10) entered disabled state
[ 39.844320][ T479] vx10: entered allmulticast mode
[ 39.848203][ T479] vx10: entered promiscuous mode
[ 39.849185][ T479] br2: port 2(vx10) entered blocking state
[ 39.849658][ T479] br2: port 2(vx10) entered forwarding state
[ 40.719270][ T486] br2: port 3(vx20) entered blocking state
[ 40.720160][ T486] br2: port 3(vx20) entered disabled state
[ 40.720835][ T486] vx20: entered allmulticast mode
[ 40.726828][ T486] vx20: entered promiscuous mode
[ 40.727884][ T486] br2: port 3(vx20) entered blocking state
[ 40.728411][ T486] br2: port 3(vx20) entered forwarding state
[ 41.723766][ T91] br2: port 1(w1) entered blocking state
[ 41.724185][ T91] br2: port 1(w1) entered forwarding state
[ 54.578676][ T573] GACT probability NOT on
[ 151.276651][ T12] vx20: left allmulticast mode
[ 151.277268][ T12] vx20: left promiscuous mode
[ 151.278110][ T12] br2: port 3(vx20) entered disabled state
[ 151.283079][ T12] vx10: left allmulticast mode
[ 151.283423][ T12] vx10: left promiscuous mode
[ 151.283926][ T12] br2: port 2(vx10) entered disabled state
[ 151.291152][ T12] w1: left allmulticast mode
[ 151.293676][ T12] w1: left promiscuous mode
[ 151.294267][ T12] br2: port 1(w1) entered disabled state
[ 151.366318][ T12] ==================================================================
[ 151.366671][ T12] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 151.366943][ T12] Read of size 1 at addr ffff888004db16ac by task kworker/u16:0/12
[ 151.367227][ T12]
[ 151.367311][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 151.367315][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 151.367318][ T12] Workqueue: netns cleanup_net
[ 151.367327][ T12] Call Trace:
[ 151.367329][ T12]
[ 151.367332][ T12] dump_stack_lvl+0x82/0xc0
[ 151.367338][ T12] print_address_description.constprop.0+0x2c/0x3a0
[ 151.367348][ T12] ? kobject_put+0xbb/0xd0
[ 151.367352][ T12] print_report+0xb4/0x270
[ 151.367355][ T12] ? kobject_put+0xbb/0xd0
[ 151.367358][ T12] ? kasan_addr_to_slab+0x21/0x70
[ 151.367361][ T12] ? kobject_put+0xbb/0xd0
[ 151.367364][ T12] kasan_report+0xca/0x100
[ 151.367367][ T12] ? kobject_put+0xbb/0xd0
[ 151.367373][ T12] kobject_put+0xbb/0xd0
[ 151.367377][ T12] netdev_run_todo+0x5f0/0xc60
[ 151.367380][ T12] ? rtnl_is_locked+0x15/0x20
[ 151.367385][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 151.367390][ T12] ? generic_xdp_install+0x410/0x410
[ 151.367396][ T12] ops_undo_list+0x714/0x890
[ 151.367401][ T12] ? netns_get+0x110/0x110
[ 151.367404][ T12] ? cleanup_net+0x2d6/0x830
[ 151.367409][ T12] cleanup_net+0x3b2/0x830
[ 151.367413][ T12] ? net_passive_dec+0x190/0x190
[ 151.367417][ T12] ? rcu_is_watching+0x12/0xb0
[ 151.367424][ T12] process_one_work+0xe35/0x1650
[ 151.367433][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 151.367442][ T12] ? assign_work+0x168/0x240
[ 151.367448][ T12] worker_thread+0x591/0xcf0
[ 151.367457][ T12] ? rescuer_thread+0xd10/0xd10
[ 151.367462][ T12] kthread+0x37b/0x5f0
[ 151.367466][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 151.367468][ T12] ? ret_from_fork+0x1b/0x270
[ 151.367478][ T12] ? __lock_release+0x5d/0x170
[ 151.367485][ T12] ? rcu_is_watching+0x12/0xb0
[ 151.367488][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 151.367494][ T12] ret_from_fork+0x1db/0x270
[ 151.367496][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 151.367499][ T12] ret_from_fork_asm+0x11/0x20
[ 151.367508][ T12]
[ 151.367509][ T12]
[ 151.373879][ T12] Allocated by task 450:
[ 151.373998][ T12] kasan_save_stack+0x24/0x40
[ 151.374171][ T12] kasan_save_track+0x14/0x30
[ 151.374343][ T12] __kasan_kmalloc+0x7b/0x90
[ 151.374511][ T12] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 151.374683][ T12] alloc_netdev_mqs+0x7d/0x1370
[ 151.374838][ T12] sit_init_net+0x169/0x550
[ 151.374997][ T12] ops_init+0x189/0x550
[ 151.375119][ T12] setup_net+0xf1/0x380
[ 151.375251][ T12] copy_net_ns+0x21a/0x380
[ 151.375406][ T12] create_new_namespaces+0x35f/0x900
[ 151.375567][ T12] unshare_nsproxy_namespaces+0x89/0x120
[ 151.375730][ T12] ksys_unshare+0x2a3/0x660
[ 151.375887][ T12] __x64_sys_unshare+0x31/0x40
[ 151.376136][ T12] do_syscall_64+0xc1/0xfd0
[ 151.376307][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 151.376522][ T12]
[ 151.376608][ T12] Freed by task 12:
[ 151.376728][ T12] kasan_save_stack+0x24/0x40
[ 151.376890][ T12] kasan_save_track+0x14/0x30
[ 151.377145][ T12] __kasan_save_free_info+0x3b/0x60
[ 151.377317][ T12] __kasan_slab_free+0x3f/0x60
[ 151.377480][ T12] kfree+0x21d/0x540
[ 151.377601][ T12] device_release+0x9c/0x210
[ 151.377762][ T12] kobject_cleanup+0xfe/0x360
[ 151.378011][ T12] netdev_run_todo+0x81f/0xc60
[ 151.378171][ T12] ops_undo_list+0x714/0x890
[ 151.378349][ T12] cleanup_net+0x3b2/0x830
[ 151.378529][ T12] process_one_work+0xe35/0x1650
[ 151.378690][ T12] worker_thread+0x591/0xcf0
[ 151.378848][ T12] kthread+0x37b/0x5f0
[ 151.378968][ T12] ret_from_fork+0x1db/0x270
[ 151.379132][ T12] ret_from_fork_asm+0x11/0x20
[ 151.379295][ T12]
[ 151.379385][ T12] The buggy address belongs to the object at ffff888004db1000
[ 151.379385][ T12] which belongs to the cache kmalloc-4k of size 4096
[ 151.379803][ T12] The buggy address is located 1708 bytes inside of
[ 151.379803][ T12] freed 4096-byte region [ffff888004db1000, ffff888004db2000)
[ 151.380174][ T12]
[ 151.380357][ T12] The buggy address belongs to the physical page:
[ 151.380580][ T12] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4db0
[ 151.380863][ T12] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 151.381105][ T12] flags: 0x80000000000040(head|node=0|zone=1)
[ 151.381312][ T12] page_type: f5(slab)
[ 151.381461][ T12] raw: 0080000000000040 ffff888001043700 ffffea000020a010 ffffea0000573610
[ 151.381753][ T12] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 151.382035][ T12] head: 0080000000000040 ffff888001043700 ffffea000020a010 ffffea0000573610
[ 151.382315][ T12] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 151.382611][ T12] head: 0080000000000003 ffffea0000136c01 00000000ffffffff 00000000ffffffff
[ 151.382879][ T12] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 151.383162][ T12] page dumped because: kasan: bad access detected
[ 151.383361][ T12]
[ 151.383455][ T12] Memory state around the buggy address:
[ 151.383610][ T12] ffff888004db1580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 151.383925][ T12] ffff888004db1600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 151.384152][ T12] >ffff888004db1680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 151.384380][ T12] ^
[ 151.384547][ T12] ffff888004db1700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 151.384774][ T12] ffff888004db1780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 151.384995][ T12] ==================================================================
[ 151.385378][ T12] Disabling lock debugging due to kernel taint
[ 151.385707][ T12] ------------[ cut here ]------------
[ 151.385956][ T12] refcount_t: underflow; use-after-free.
[ 151.386181][ T12] WARNING: CPU: 2 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 151.386481][ T12] Modules linked in: act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q sch_ingress vrf veth
[ 151.386995][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 151.387367][ T12] Tainted: [B]=BAD_PAGE
[ 151.387533][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 151.387755][ T12] Workqueue: netns cleanup_net
[ 151.387949][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 151.388175][ 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 e5 a6 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
[ 151.388873][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 151.389092][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 151.389353][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 151.389714][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff4efe134
[ 151.389991][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 151.390242][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 151.390499][ T12] FS: 0000000000000000(0000) GS:ffff88808d6f2000(0000) knlGS:0000000000000000
[ 151.390811][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 151.391027][ T12] CR2: 00007eff2e61a1d6 CR3: 000000000eb35001 CR4: 0000000000772ef0
[ 151.391451][ T12] PKRU: 55555554
[ 151.391603][ T12] Call Trace:
[ 151.391750][ T12]
[ 151.391862][ T12] netdev_run_todo+0x5f0/0xc60
[ 151.392045][ T12] ? rtnl_is_locked+0x15/0x20
[ 151.392245][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 151.392424][ T12] ? generic_xdp_install+0x410/0x410
[ 151.392613][ T12] ops_undo_list+0x714/0x890
[ 151.392824][ T12] ? netns_get+0x110/0x110
[ 151.393169][ T12] ? cleanup_net+0x2d6/0x830
[ 151.393446][ T12] cleanup_net+0x3b2/0x830
[ 151.393639][ T12] ? net_passive_dec+0x190/0x190
[ 151.393917][ T12] ? rcu_is_watching+0x12/0xb0
[ 151.394098][ T12] process_one_work+0xe35/0x1650
[ 151.394277][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 151.394458][ T12] ? assign_work+0x168/0x240
[ 151.394748][ T12] worker_thread+0x591/0xcf0
[ 151.395045][ T12] ? rescuer_thread+0xd10/0xd10
[ 151.395243][ T12] kthread+0x37b/0x5f0
[ 151.395385][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 151.395655][ T12] ? ret_from_fork+0x1b/0x270
[ 151.395937][ T12] ? __lock_release+0x5d/0x170
[ 151.396118][ T12] ? rcu_is_watching+0x12/0xb0
[ 151.396298][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 151.396575][ T12] ret_from_fork+0x1db/0x270
[ 151.396764][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 151.396955][ T12] ret_from_fork_asm+0x11/0x20
[ 151.397151][ T12]
[ 151.397303][ T12] irq event stamp: 63257
[ 151.397560][ T12] hardirqs last enabled at (63257): [] finish_task_switch.isra.0+0x245/0x960
[ 151.398011][ T12] hardirqs last disabled at (63256): [] __schedule+0x94a/0x1b10
[ 151.398418][ T12] softirqs last enabled at (62540): [] handle_softirqs+0x352/0x610
[ 151.398732][ T12] softirqs last disabled at (62533): [] irq_exit_rcu+0xab/0x100
[ 151.399054][ T12] ---[ end trace 0000000000000000 ]---
[ 151.590068][ T12] vx20: left allmulticast mode
[ 151.590479][ T12] vx20: left promiscuous mode
[ 151.590987][ T12] br2: port 3(vx20) entered disabled state
[ 151.593288][ T12] vx10: left allmulticast mode
[ 151.593598][ T12] vx10: left promiscuous mode
[ 151.593939][ T12] br2: port 2(vx10) entered disabled state
[ 151.595926][ T12] w1: left allmulticast mode
[ 151.596134][ T12] w1: left promiscuous mode
[ 151.597548][ T12] br2: port 1(w1) entered disabled state
[ 153.257791][ T781] br1: port 4(veth2) entered disabled state
[ 153.352971][ T782] veth2: left allmulticast mode
[ 153.353186][ T782] veth2: left promiscuous mode
[ 153.353498][ T782] br1: port 4(veth2) entered disabled state
[ 153.641221][ T786] br1: port 3(veth1) entered disabled state
[ 153.716909][ T787] veth1: left allmulticast mode
[ 153.717146][ T787] veth1: left promiscuous mode
[ 153.717467][ T787] br1: port 3(veth1) entered disabled state
[ 153.840499][ T789] vx20: left allmulticast mode
[ 153.840740][ T789] vx20: left promiscuous mode
[ 153.841051][ T789] br1: port 2(vx20) entered disabled state
[ 154.140200][ T793] vx10: left allmulticast mode
[ 154.140430][ T793] vx10: left promiscuous mode
[ 154.140749][ T793] br1: port 1(vx10) entered disabled state