[ 17.320981][ T250] ip (250) used greatest stack depth: 24688 bytes left
[ 17.924494][ T261] ip (261) used greatest stack depth: 24616 bytes left
[ 22.094987][ T300] 8021q: 802.1Q VLAN Support v1.8
[ 28.670849][ T349] br1: port 1(vx10) entered blocking state
[ 28.672010][ T349] br1: port 1(vx10) entered disabled state
[ 28.672739][ T349] vx10: entered allmulticast mode
[ 28.676735][ T349] vx10: entered promiscuous mode
[ 28.678013][ T349] br1: port 1(vx10) entered blocking state
[ 28.678546][ T349] br1: port 1(vx10) entered forwarding state
[ 29.300665][ T354] br1: port 2(vx20) entered blocking state
[ 29.301472][ T354] br1: port 2(vx20) entered disabled state
[ 29.302145][ T354] vx20: entered allmulticast mode
[ 29.307492][ T354] vx20: entered promiscuous mode
[ 29.309506][ T354] br1: port 2(vx20) entered blocking state
[ 29.310223][ T354] br1: port 2(vx20) entered forwarding state
[ 29.605178][ T356] br1: port 3(veth1) entered blocking state
[ 29.605941][ T356] br1: port 3(veth1) entered disabled state
[ 29.606434][ T356] veth1: entered allmulticast mode
[ 29.610217][ T356] veth1: entered promiscuous mode
[ 29.745003][ T38] br1: port 3(veth1) entered blocking state
[ 29.745687][ T38] br1: port 3(veth1) entered forwarding state
[ 30.343084][ T362] br1: port 4(veth2) entered blocking state
[ 30.343669][ T362] br1: port 4(veth2) entered disabled state
[ 30.344148][ T362] veth2: entered allmulticast mode
[ 30.347824][ T362] veth2: entered promiscuous mode
[ 30.466908][ T38] br1: port 4(veth2) entered blocking state
[ 30.467567][ T38] br1: port 4(veth2) entered forwarding state
[ 31.843740][ T372] ip (372) used greatest stack depth: 24288 bytes left
[ 36.449073][ T413] br2: port 1(w1) entered blocking state
[ 36.449958][ T413] br2: port 1(w1) entered disabled state
[ 36.450384][ T413] w1: entered allmulticast mode
[ 36.454063][ T413] w1: entered promiscuous mode
[ 37.557835][ T421] br2: port 2(vx10) entered blocking state
[ 37.558361][ T421] br2: port 2(vx10) entered disabled state
[ 37.558811][ T421] vx10: entered allmulticast mode
[ 37.563012][ T421] vx10: entered promiscuous mode
[ 37.563972][ T421] br2: port 2(vx10) entered blocking state
[ 37.564464][ T421] br2: port 2(vx10) entered forwarding state
[ 38.594493][ T428] br2: port 3(vx20) entered blocking state
[ 38.594954][ T428] br2: port 3(vx20) entered disabled state
[ 38.595413][ T428] vx20: entered allmulticast mode
[ 38.599342][ T428] vx20: entered promiscuous mode
[ 38.600198][ T428] br2: port 3(vx20) entered blocking state
[ 38.600633][ T428] br2: port 3(vx20) entered forwarding state
[ 39.841979][ T35] br2: port 1(w1) entered blocking state
[ 39.842716][ T35] br2: port 1(w1) entered forwarding state
[ 43.792077][ T470] br2: port 1(w1) entered blocking state
[ 43.792762][ T470] br2: port 1(w1) entered disabled state
[ 43.793187][ T470] w1: entered allmulticast mode
[ 43.796923][ T470] w1: entered promiscuous mode
[ 44.830008][ T478] br2: port 2(vx10) entered blocking state
[ 44.830605][ T478] br2: port 2(vx10) entered disabled state
[ 44.831257][ T478] vx10: entered allmulticast mode
[ 44.836388][ T478] vx10: entered promiscuous mode
[ 44.837753][ T478] br2: port 2(vx10) entered blocking state
[ 44.838430][ T478] br2: port 2(vx10) entered forwarding state
[ 45.878531][ T485] br2: port 3(vx20) entered blocking state
[ 45.879056][ T485] br2: port 3(vx20) entered disabled state
[ 45.879576][ T485] vx20: entered allmulticast mode
[ 45.883713][ T485] vx20: entered promiscuous mode
[ 45.885147][ T485] br2: port 3(vx20) entered blocking state
[ 45.885911][ T485] br2: port 3(vx20) entered forwarding state
[ 47.163174][ T35] br2: port 1(w1) entered blocking state
[ 47.163600][ T35] br2: port 1(w1) entered forwarding state
[ 60.714754][ T572] GACT probability NOT on
[ 158.456949][ T12] vx20: left allmulticast mode
[ 158.457704][ T12] vx20: left promiscuous mode
[ 158.458685][ T12] br2: port 3(vx20) entered disabled state
[ 158.465256][ T12] vx10: left allmulticast mode
[ 158.465632][ T12] vx10: left promiscuous mode
[ 158.466404][ T12] br2: port 2(vx10) entered disabled state
[ 158.472146][ T12] w1: left allmulticast mode
[ 158.472566][ T12] w1: left promiscuous mode
[ 158.473116][ T12] br2: port 1(w1) entered disabled state
[ 158.591566][ T12] ==================================================================
[ 158.591912][ T12] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 158.592211][ T12] Read of size 1 at addr ffff88800c0d46ac by task kworker/u16:0/12
[ 158.592488][ T12]
[ 158.592592][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 158.592599][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.592602][ T12] Workqueue: netns cleanup_net
[ 158.592619][ T12] Call Trace:
[ 158.592624][ T12]
[ 158.592627][ T12] dump_stack_lvl+0x82/0xc0
[ 158.592637][ T12] print_address_description.constprop.0+0x2c/0x3a0
[ 158.592648][ T12] ? kobject_put+0xbb/0xd0
[ 158.592652][ T12] print_report+0xb4/0x270
[ 158.592655][ T12] ? kobject_put+0xbb/0xd0
[ 158.592659][ T12] ? kasan_addr_to_slab+0x21/0x70
[ 158.592662][ T12] ? kobject_put+0xbb/0xd0
[ 158.592665][ T12] kasan_report+0xca/0x100
[ 158.592669][ T12] ? kobject_put+0xbb/0xd0
[ 158.592674][ T12] kobject_put+0xbb/0xd0
[ 158.592678][ T12] netdev_run_todo+0x5f0/0xc60
[ 158.592687][ T12] ? rtnl_is_locked+0x15/0x20
[ 158.592693][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 158.592697][ T12] ? generic_xdp_install+0x410/0x410
[ 158.592703][ T12] ops_undo_list+0x714/0x890
[ 158.592709][ T12] ? netns_get+0x110/0x110
[ 158.592711][ T12] ? cleanup_net+0x2d6/0x830
[ 158.592717][ T12] cleanup_net+0x3b2/0x830
[ 158.592721][ T12] ? net_passive_dec+0x190/0x190
[ 158.592725][ T12] ? rcu_is_watching+0x12/0xb0
[ 158.592733][ T12] process_one_work+0xe35/0x1650
[ 158.592744][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 158.592750][ T12] ? assign_work+0x168/0x240
[ 158.592754][ T12] worker_thread+0x591/0xcf0
[ 158.592759][ T12] ? rescuer_thread+0xd10/0xd10
[ 158.592763][ T12] kthread+0x37b/0x5f0
[ 158.592768][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 158.592770][ T12] ? ret_from_fork+0x1b/0x270
[ 158.592778][ T12] ? __lock_release+0x5d/0x170
[ 158.592785][ T12] ? rcu_is_watching+0x12/0xb0
[ 158.592790][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 158.592794][ T12] ret_from_fork+0x1db/0x270
[ 158.592796][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 158.592799][ T12] ret_from_fork_asm+0x11/0x20
[ 158.592812][ T12]
[ 158.592813][ T12]
[ 158.600403][ T12] Allocated by task 449:
[ 158.600581][ T12] kasan_save_stack+0x24/0x40
[ 158.600767][ T12] kasan_save_track+0x14/0x30
[ 158.600966][ T12] __kasan_kmalloc+0x7b/0x90
[ 158.601162][ T12] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 158.601366][ T12] alloc_netdev_mqs+0x7d/0x1370
[ 158.601557][ T12] sit_init_net+0x169/0x550
[ 158.601749][ T12] ops_init+0x189/0x550
[ 158.601881][ T12] setup_net+0xf1/0x380
[ 158.602005][ T12] copy_net_ns+0x21a/0x380
[ 158.602193][ T12] create_new_namespaces+0x35f/0x900
[ 158.602375][ T12] unshare_nsproxy_namespaces+0x89/0x120
[ 158.602604][ T12] ksys_unshare+0x2a3/0x660
[ 158.602801][ T12] __x64_sys_unshare+0x31/0x40
[ 158.602970][ T12] do_syscall_64+0xc1/0xfd0
[ 158.603171][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 158.603387][ T12]
[ 158.603486][ T12] Freed by task 12:
[ 158.603633][ T12] kasan_save_stack+0x24/0x40
[ 158.603839][ T12] kasan_save_track+0x14/0x30
[ 158.604021][ T12] __kasan_save_free_info+0x3b/0x60
[ 158.604338][ T12] __kasan_slab_free+0x3f/0x60
[ 158.604576][ T12] kfree+0x21d/0x540
[ 158.604725][ T12] device_release+0x9c/0x210
[ 158.604899][ T12] kobject_cleanup+0xfe/0x360
[ 158.605085][ T12] netdev_run_todo+0x81f/0xc60
[ 158.605300][ T12] ops_undo_list+0x714/0x890
[ 158.605508][ T12] cleanup_net+0x3b2/0x830
[ 158.605781][ T12] process_one_work+0xe35/0x1650
[ 158.605998][ T12] worker_thread+0x591/0xcf0
[ 158.606202][ T12] kthread+0x37b/0x5f0
[ 158.606360][ T12] ret_from_fork+0x1db/0x270
[ 158.606597][ T12] ret_from_fork_asm+0x11/0x20
[ 158.606828][ T12]
[ 158.606955][ T12] The buggy address belongs to the object at ffff88800c0d4000
[ 158.606955][ T12] which belongs to the cache kmalloc-4k of size 4096
[ 158.607485][ T12] The buggy address is located 1708 bytes inside of
[ 158.607485][ T12] freed 4096-byte region [ffff88800c0d4000, ffff88800c0d5000)
[ 158.607927][ T12]
[ 158.608012][ T12] The buggy address belongs to the physical page:
[ 158.608228][ T12] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xc0d0
[ 158.608556][ T12] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 158.608847][ T12] flags: 0x80000000000040(head|node=0|zone=1)
[ 158.609058][ T12] page_type: f5(slab)
[ 158.609202][ T12] raw: 0080000000000040 ffff888001043700 ffffea00002afc10 ffffea00002a8610
[ 158.609543][ T12] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 158.609871][ T12] head: 0080000000000040 ffff888001043700 ffffea00002afc10 ffffea00002a8610
[ 158.610196][ T12] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 158.610529][ T12] head: 0080000000000003 ffffea0000303401 00000000ffffffff 00000000ffffffff
[ 158.610844][ T12] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 158.611184][ T12] page dumped because: kasan: bad access detected
[ 158.611434][ T12]
[ 158.611540][ T12] Memory state around the buggy address:
[ 158.611707][ T12] ffff88800c0d4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 158.612029][ T12] ffff88800c0d4600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 158.612299][ T12] >ffff88800c0d4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 158.612606][ T12] ^
[ 158.612780][ T12] ffff88800c0d4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 158.613089][ T12] ffff88800c0d4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 158.613387][ T12] ==================================================================
[ 158.613783][ T12] Disabling lock debugging due to kernel taint
[ 158.614030][ T12] ------------[ cut here ]------------
[ 158.614188][ T12] refcount_t: underflow; use-after-free.
[ 158.614485][ T12] WARNING: CPU: 3 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 158.614825][ T12] Modules linked in: act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc 8021q sch_ingress vrf veth
[ 158.615355][ T12] CPU: 3 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 158.615891][ T12] Tainted: [B]=BAD_PAGE
[ 158.616080][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 158.616437][ T12] Workqueue: netns cleanup_net
[ 158.616716][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 158.616975][ 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 85 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
[ 158.617671][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 158.617895][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 158.618178][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 158.618517][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff4e3e134
[ 158.618839][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 158.619100][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 158.619502][ T12] FS: 0000000000000000(0000) GS:ffff888088172000(0000) knlGS:0000000000000000
[ 158.619844][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 158.620062][ T12] CR2: 00007f51384d10f0 CR3: 0000000008e98005 CR4: 0000000000772ef0
[ 158.620426][ T12] PKRU: 55555554
[ 158.620589][ T12] Call Trace:
[ 158.620740][ T12]
[ 158.620838][ T12] netdev_run_todo+0x5f0/0xc60
[ 158.621015][ T12] ? rtnl_is_locked+0x15/0x20
[ 158.621216][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 158.621492][ T12] ? generic_xdp_install+0x410/0x410
[ 158.621736][ T12] ops_undo_list+0x714/0x890
[ 158.621919][ T12] ? netns_get+0x110/0x110
[ 158.622090][ T12] ? cleanup_net+0x2d6/0x830
[ 158.622284][ T12] cleanup_net+0x3b2/0x830
[ 158.622539][ T12] ? net_passive_dec+0x190/0x190
[ 158.622729][ T12] ? rcu_is_watching+0x12/0xb0
[ 158.622919][ T12] process_one_work+0xe35/0x1650
[ 158.623080][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 158.623288][ T12] ? assign_work+0x168/0x240
[ 158.623537][ T12] worker_thread+0x591/0xcf0
[ 158.623729][ T12] ? rescuer_thread+0xd10/0xd10
[ 158.623907][ T12] kthread+0x37b/0x5f0
[ 158.624047][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 158.624227][ T12] ? ret_from_fork+0x1b/0x270
[ 158.624466][ T12] ? __lock_release+0x5d/0x170
[ 158.624680][ T12] ? rcu_is_watching+0x12/0xb0
[ 158.624877][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 158.625127][ T12] ret_from_fork+0x1db/0x270
[ 158.625471][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 158.625701][ T12] ret_from_fork_asm+0x11/0x20
[ 158.625914][ T12]
[ 158.626045][ T12] irq event stamp: 77199
[ 158.626438][ T12] hardirqs last enabled at (77199): [] finish_task_switch.isra.0+0x245/0x960
[ 158.626849][ T12] hardirqs last disabled at (77198): [] __schedule+0x94a/0x1b10
[ 158.627247][ T12] softirqs last enabled at (77110): [] handle_softirqs+0x352/0x610
[ 158.627648][ T12] softirqs last disabled at (77105): [] irq_exit_rcu+0xab/0x100
[ 158.627960][ T12] ---[ end trace 0000000000000000 ]---
[ 158.805712][ T12] vx20: left allmulticast mode
[ 158.805964][ T12] vx20: left promiscuous mode
[ 158.806277][ T12] br2: port 3(vx20) entered disabled state
[ 158.809958][ T12] vx10: left allmulticast mode
[ 158.810181][ T12] vx10: left promiscuous mode
[ 158.810508][ T12] br2: port 2(vx10) entered disabled state
[ 158.812175][ T12] w1: left allmulticast mode
[ 158.812424][ T12] w1: left promiscuous mode
[ 158.812752][ T12] br2: port 1(w1) entered disabled state
[ 160.728649][ T781] br1: port 4(veth2) entered disabled state
[ 160.801018][ T782] veth2: left allmulticast mode
[ 160.801291][ T782] veth2: left promiscuous mode
[ 160.801631][ T782] br1: port 4(veth2) entered disabled state
[ 161.184540][ T786] br1: port 3(veth1) entered disabled state
[ 161.254890][ T787] veth1: left allmulticast mode
[ 161.255184][ T787] veth1: left promiscuous mode
[ 161.255908][ T787] br1: port 3(veth1) entered disabled state
[ 161.429410][ T789] vx20: left allmulticast mode
[ 161.429743][ T789] vx20: left promiscuous mode
[ 161.430136][ T789] br1: port 2(vx20) entered disabled state
[ 161.808667][ T793] vx10: left allmulticast mode
[ 161.809017][ T793] vx10: left promiscuous mode
[ 161.809457][ T793] br1: port 1(vx10) entered disabled state