[ 24.931873][ T326] br1: port 1(vx1) entered blocking state
[ 24.932760][ T326] br1: port 1(vx1) entered disabled state
[ 24.933581][ T326] vx1: entered allmulticast mode
[ 24.940328][ T326] vx1: entered promiscuous mode
[ 24.943284][ T326] br1: port 1(vx1) entered blocking state
[ 24.944066][ T326] br1: port 1(vx1) entered forwarding state
[ 25.095136][ T327] br1: port 2(veth1) entered blocking state
[ 25.095639][ T327] br1: port 2(veth1) entered disabled state
[ 25.096172][ T327] veth1: entered allmulticast mode
[ 25.100929][ T327] veth1: entered promiscuous mode
[ 25.245432][ T117] br1: port 2(veth1) entered blocking state
[ 25.246204][ T117] br1: port 2(veth1) entered forwarding state
[ 25.385714][ T329] br1: port 3(veth2) entered blocking state
[ 25.386493][ T329] br1: port 3(veth2) entered disabled state
[ 25.387655][ T329] veth2: entered allmulticast mode
[ 25.393475][ T329] veth2: entered promiscuous mode
[ 25.553627][ T46] br1: port 3(veth2) entered blocking state
[ 25.554167][ T46] br1: port 3(veth2) entered forwarding state
[ 31.509736][ T376] br2: port 1(w1) entered blocking state
[ 31.510206][ T376] br2: port 1(w1) entered disabled state
[ 31.510725][ T376] w1: entered allmulticast mode
[ 31.514836][ T376] w1: entered promiscuous mode
[ 32.392404][ T382] br2: port 2(vx2) entered blocking state
[ 32.392880][ T382] br2: port 2(vx2) entered disabled state
[ 32.393255][ T382] vx2: entered allmulticast mode
[ 32.397279][ T382] vx2: entered promiscuous mode
[ 32.398797][ T382] br2: port 2(vx2) entered blocking state
[ 32.399263][ T382] br2: port 2(vx2) entered forwarding state
[ 33.689254][ T36] br2: port 1(w1) entered blocking state
[ 33.690032][ T36] br2: port 1(w1) entered forwarding state
[ 36.644527][ T414] br2: port 1(w1) entered blocking state
[ 36.645178][ T414] br2: port 1(w1) entered disabled state
[ 36.645789][ T414] w1: entered allmulticast mode
[ 36.652509][ T414] w1: entered promiscuous mode
[ 37.618023][ T420] br2: port 2(vx2) entered blocking state
[ 37.618600][ T420] br2: port 2(vx2) entered disabled state
[ 37.619501][ T420] vx2: entered allmulticast mode
[ 37.624860][ T420] vx2: entered promiscuous mode
[ 37.627303][ T420] br2: port 2(vx2) entered blocking state
[ 37.627890][ T420] br2: port 2(vx2) entered forwarding state
[ 38.773847][ T110] br2: port 1(w1) entered blocking state
[ 38.774293][ T110] br2: port 1(w1) entered forwarding state
[ 52.787518][ T511] GACT probability NOT on
[ 81.900061][ T843] veth3: entered promiscuous mode
[ 127.870299][ T1332] veth3: left promiscuous mode
[ 157.508883][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 157.610968][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 157.712155][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 157.813294][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 157.914829][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 158.016232][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 158.117759][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 158.219236][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 158.320646][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 158.422178][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x1
[ 162.557022][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 162.667549][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 162.768566][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 162.869623][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 162.970852][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 163.072136][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 163.173272][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 163.274428][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 163.375787][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 163.476918][ C1] vxlan: non-ECT from 192.0.2.34 with TOS=0x2
[ 228.274634][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 228.376915][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 228.478005][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 228.579134][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 228.680447][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 228.781559][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 228.882608][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 228.983820][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 229.084906][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 229.186018][ C3] vxlan: non-ECT from 192.0.2.34 with TOS=0x3
[ 230.446231][ T2448] vx1: left allmulticast mode
[ 230.446653][ T2448] vx1: left promiscuous mode
[ 230.447239][ T2448] br1: port 1(vx1) entered disabled state
[ 235.710509][ T2450] br1: port 1(vx1) entered blocking state
[ 235.711117][ T2450] br1: port 1(vx1) entered disabled state
[ 235.711719][ T2450] vx1: entered allmulticast mode
[ 235.718730][ T2450] vx1: entered promiscuous mode
[ 235.720719][ T2450] br1: port 1(vx1) entered blocking state
[ 235.721257][ T2450] br1: port 1(vx1) entered forwarding state
[ 276.775882][ T2821] veth3: entered promiscuous mode
[ 322.422967][ T3310] veth3: left promiscuous mode
[ 324.575528][ T3332] vx1: left allmulticast mode
[ 324.576191][ T3332] vx1: left promiscuous mode
[ 324.577035][ T3332] br1: port 1(vx1) entered disabled state
[ 329.854427][ T3334] br1: port 1(vx1) entered blocking state
[ 329.855099][ T3334] br1: port 1(vx1) entered disabled state
[ 329.855735][ T3334] vx1: entered allmulticast mode
[ 329.862408][ T3334] vx1: entered promiscuous mode
[ 329.864414][ T3334] br1: port 1(vx1) entered blocking state
[ 329.865004][ T3334] br1: port 1(vx1) entered forwarding state
[ 487.222537][ T4245] vx1: left allmulticast mode
[ 487.223126][ T4245] vx1: left promiscuous mode
[ 487.223865][ T4245] br1: port 1(vx1) entered disabled state
[ 492.499816][ T4247] br1: port 1(vx1) entered blocking state
[ 492.500383][ T4247] br1: port 1(vx1) entered disabled state
[ 492.501205][ T4247] vx1: entered allmulticast mode
[ 492.506525][ T4247] vx1: entered promiscuous mode
[ 492.508331][ T4247] br1: port 1(vx1) entered blocking state
[ 492.508849][ T4247] br1: port 1(vx1) entered forwarding state
[ 499.952550][ T12] vx2: left allmulticast mode
[ 499.953373][ T12] vx2: left promiscuous mode
[ 499.954126][ T12] br2: port 2(vx2) entered disabled state
[ 499.962267][ T12] w1: left allmulticast mode
[ 499.964282][ T12] w1: left promiscuous mode
[ 499.964968][ T12] br2: port 1(w1) entered disabled state
[ 500.036268][ T12] ==================================================================
[ 500.036707][ T12] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 500.037182][ T12] Read of size 1 at addr ffff8880163716ac by task kworker/u16:0/12
[ 500.037545][ T12]
[ 500.037699][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 500.037710][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 500.037718][ T12] Workqueue: netns cleanup_net
[ 500.037740][ T12] Call Trace:
[ 500.037748][ T12]
[ 500.037753][ T12] dump_stack_lvl+0x82/0xc0
[ 500.037769][ T12] print_address_description.constprop.0+0x2c/0x3a0
[ 500.037799][ T12] ? kobject_put+0xbb/0xd0
[ 500.037806][ T12] print_report+0xb4/0x270
[ 500.037810][ T12] ? kobject_put+0xbb/0xd0
[ 500.037815][ T12] ? kasan_addr_to_slab+0x21/0x70
[ 500.037821][ T12] ? kobject_put+0xbb/0xd0
[ 500.037826][ T12] kasan_report+0xca/0x100
[ 500.037833][ T12] ? kobject_put+0xbb/0xd0
[ 500.037842][ T12] kobject_put+0xbb/0xd0
[ 500.037848][ T12] netdev_run_todo+0x5f0/0xc60
[ 500.037862][ T12] ? rtnl_is_locked+0x15/0x20
[ 500.037873][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 500.037878][ T12] ? generic_xdp_install+0x410/0x410
[ 500.037890][ T12] ops_undo_list+0x714/0x890
[ 500.037899][ T12] ? netns_get+0x110/0x110
[ 500.037904][ T12] ? cleanup_net+0x2d6/0x830
[ 500.037911][ T12] cleanup_net+0x3b2/0x830
[ 500.037916][ T12] ? net_passive_dec+0x190/0x190
[ 500.037926][ T12] ? rcu_is_watching+0x12/0xb0
[ 500.037951][ T12] process_one_work+0xe35/0x1650
[ 500.037972][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 500.037982][ T12] ? assign_work+0x168/0x240
[ 500.037988][ T12] worker_thread+0x591/0xcf0
[ 500.037996][ T12] ? rescuer_thread+0xd10/0xd10
[ 500.038001][ T12] kthread+0x37b/0x5f0
[ 500.038011][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 500.038016][ T12] ? ret_from_fork+0x1b/0x270
[ 500.038037][ T12] ? __lock_release+0x5d/0x170
[ 500.038053][ T12] ? rcu_is_watching+0x12/0xb0
[ 500.038058][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 500.038064][ T12] ret_from_fork+0x1db/0x270
[ 500.038068][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 500.038072][ T12] ret_from_fork_asm+0x11/0x20
[ 500.038099][ T12]
[ 500.038101][ T12]
[ 500.048484][ T12] Allocated by task 393:
[ 500.048706][ T12] kasan_save_stack+0x24/0x40
[ 500.049002][ T12] kasan_save_track+0x14/0x30
[ 500.049278][ T12] __kasan_kmalloc+0x7b/0x90
[ 500.049524][ T12] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 500.049773][ T12] alloc_netdev_mqs+0x7d/0x1370
[ 500.049991][ T12] sit_init_net+0x169/0x550
[ 500.050174][ T12] ops_init+0x189/0x550
[ 500.050302][ T12] setup_net+0xf1/0x380
[ 500.050430][ T12] copy_net_ns+0x21a/0x380
[ 500.050647][ T12] create_new_namespaces+0x35f/0x900
[ 500.050923][ T12] unshare_nsproxy_namespaces+0x89/0x120
[ 500.051184][ T12] ksys_unshare+0x2a3/0x660
[ 500.051458][ T12] __x64_sys_unshare+0x31/0x40
[ 500.051727][ T12] do_syscall_64+0xc1/0xfd0
[ 500.052050][ T12] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 500.052381][ T12]
[ 500.052473][ T12] Freed by task 12:
[ 500.052620][ T12] kasan_save_stack+0x24/0x40
[ 500.052807][ T12] kasan_save_track+0x14/0x30
[ 500.052986][ T12] __kasan_save_free_info+0x3b/0x60
[ 500.053163][ T12] __kasan_slab_free+0x3f/0x60
[ 500.053433][ T12] kfree+0x21d/0x540
[ 500.053577][ T12] device_release+0x9c/0x210
[ 500.053782][ T12] kobject_cleanup+0xfe/0x360
[ 500.053970][ T12] netdev_run_todo+0x81f/0xc60
[ 500.054148][ T12] ops_undo_list+0x714/0x890
[ 500.054326][ T12] cleanup_net+0x3b2/0x830
[ 500.054605][ T12] process_one_work+0xe35/0x1650
[ 500.054928][ T12] worker_thread+0x591/0xcf0
[ 500.055107][ T12] kthread+0x37b/0x5f0
[ 500.055240][ T12] ret_from_fork+0x1db/0x270
[ 500.055413][ T12] ret_from_fork_asm+0x11/0x20
[ 500.055820][ T12]
[ 500.055968][ T12] The buggy address belongs to the object at ffff888016371000
[ 500.055968][ T12] which belongs to the cache kmalloc-4k of size 4096
[ 500.056970][ T12] The buggy address is located 1708 bytes inside of
[ 500.056970][ T12] freed 4096-byte region [ffff888016371000, ffff888016372000)
[ 500.057653][ T12]
[ 500.057799][ T12] The buggy address belongs to the physical page:
[ 500.058144][ T12] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x16370
[ 500.058817][ T12] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 500.059208][ T12] flags: 0x80000000000040(head|node=0|zone=1)
[ 500.059424][ T12] page_type: f5(slab)
[ 500.059576][ T12] raw: 0080000000000040 ffff888001043700 ffffea0000296810 ffffea000027f410
[ 500.059867][ T12] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 500.060168][ T12] head: 0080000000000040 ffff888001043700 ffffea0000296810 ffffea000027f410
[ 500.060567][ T12] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 500.060884][ T12] head: 0080000000000003 ffffea000058dc01 00000000ffffffff 00000000ffffffff
[ 500.061265][ T12] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 500.061665][ T12] page dumped because: kasan: bad access detected
[ 500.061973][ T12]
[ 500.062058][ T12] Memory state around the buggy address:
[ 500.062219][ T12] ffff888016371580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 500.062502][ T12] ffff888016371600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 500.062761][ T12] >ffff888016371680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 500.063024][ T12] ^
[ 500.063178][ T12] ffff888016371700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 500.063472][ T12] ffff888016371780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 500.063818][ T12] ==================================================================
[ 500.064250][ T12] Disabling lock debugging due to kernel taint
[ 500.064586][ T12] ------------[ cut here ]------------
[ 500.064875][ T12] refcount_t: underflow; use-after-free.
[ 500.065242][ T12] WARNING: CPU: 2 PID: 12 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 500.065951][ T12] Modules linked in: act_gact cls_flower vxlan ip6_udp_tunnel udp_tunnel bridge stp llc sch_ingress vrf veth
[ 500.066637][ T12] CPU: 2 UID: 0 PID: 12 Comm: kworker/u16:0 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 500.067644][ T12] Tainted: [B]=BAD_PAGE
[ 500.067908][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 500.068253][ T12] Workqueue: netns cleanup_net
[ 500.068576][ T12] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 500.069317][ 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 05 b5 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
[ 500.070477][ T12] RSP: 0018:ffffc900000c7a08 EFLAGS: 00010282
[ 500.070934][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 500.071218][ T12] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 500.071538][ T12] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff6b3e134
[ 500.071845][ T12] R10: 0000000000000003 R11: ffffc900000c7580 R12: 0000000000000001
[ 500.072160][ T12] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 500.072561][ T12] FS: 0000000000000000(0000) GS:ffff88807f4f2000(0000) knlGS:0000000000000000
[ 500.072902][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 500.073132][ T12] CR2: 00007fecc7d9947f CR3: 0000000010d35006 CR4: 0000000000772ef0
[ 500.073524][ T12] PKRU: 55555554
[ 500.073687][ T12] Call Trace:
[ 500.073845][ T12]
[ 500.073965][ T12] netdev_run_todo+0x5f0/0xc60
[ 500.074161][ T12] ? rtnl_is_locked+0x15/0x20
[ 500.074467][ T12] ? dev_ingress_queue_create+0x190/0x190
[ 500.074664][ T12] ? generic_xdp_install+0x410/0x410
[ 500.074880][ T12] ops_undo_list+0x714/0x890
[ 500.075084][ T12] ? netns_get+0x110/0x110
[ 500.075282][ T12] ? cleanup_net+0x2d6/0x830
[ 500.075466][ T12] cleanup_net+0x3b2/0x830
[ 500.075765][ T12] ? net_passive_dec+0x190/0x190
[ 500.075971][ T12] ? rcu_is_watching+0x12/0xb0
[ 500.076159][ T12] process_one_work+0xe35/0x1650
[ 500.076457][ T12] ? pwq_dec_nr_in_flight+0x550/0x550
[ 500.076696][ T12] ? assign_work+0x168/0x240
[ 500.076900][ T12] worker_thread+0x591/0xcf0
[ 500.077180][ T12] ? rescuer_thread+0xd10/0xd10
[ 500.077381][ T12] kthread+0x37b/0x5f0
[ 500.077534][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 500.077738][ T12] ? ret_from_fork+0x1b/0x270
[ 500.078030][ T12] ? __lock_release+0x5d/0x170
[ 500.078268][ T12] ? rcu_is_watching+0x12/0xb0
[ 500.078448][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 500.078661][ T12] ret_from_fork+0x1db/0x270
[ 500.079050][ T12] ? kthread_is_per_cpu+0xc0/0xc0
[ 500.079242][ T12] ret_from_fork_asm+0x11/0x20
[ 500.079436][ T12]
[ 500.079613][ T12] irq event stamp: 61183
[ 500.079781][ T12] hardirqs last enabled at (61183): [] irqentry_exit+0x3b/0x80
[ 500.080138][ T12] hardirqs last disabled at (61182): [] handle_softirqs+0x47f/0x610
[ 500.080575][ T12] softirqs last enabled at (61096): [] handle_softirqs+0x352/0x610
[ 500.081264][ T12] softirqs last disabled at (61087): [] irq_exit_rcu+0xab/0x100
[ 500.081753][ T12] ---[ end trace 0000000000000000 ]---
[ 500.343236][ T12] vx2: left allmulticast mode
[ 500.343634][ T12] vx2: left promiscuous mode
[ 500.344203][ T12] br2: port 2(vx2) entered disabled state
[ 500.347297][ T12] w1: left allmulticast mode
[ 500.348068][ T12] w1: left promiscuous mode
[ 500.348552][ T12] br2: port 1(w1) entered disabled state
[ 502.429766][ T4292] vx1: left allmulticast mode
[ 502.430023][ T4292] vx1: left promiscuous mode
[ 502.430363][ T4292] br1: port 1(vx1) entered disabled state
[ 502.677384][ T4295] br1: port 3(veth2) entered disabled state
[ 502.776265][ T4296] veth2: left allmulticast mode
[ 502.776662][ T4296] veth2: left promiscuous mode
[ 502.777159][ T4296] br1: port 3(veth2) entered disabled state
[ 502.866629][ T4297] br1: port 2(veth1) entered disabled state
[ 502.947569][ T4298] veth1: left allmulticast mode
[ 502.947958][ T4298] veth1: left promiscuous mode
[ 502.948298][ T4298] br1: port 2(veth1) entered disabled state