[ 21.271869][ T270] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[ 21.751190][ T274] br0: port 1(veth0) entered blocking state
[ 21.751795][ T274] br0: port 1(veth0) entered disabled state
[ 21.752373][ T274] veth0: entered allmulticast mode
[ 21.756161][ T274] veth0: entered promiscuous mode
[ 21.884389][ T275] br0: port 2(veth1) entered blocking state
[ 21.884885][ T275] br0: port 2(veth1) entered disabled state
[ 21.885351][ T275] veth1: entered allmulticast mode
[ 21.890657][ T275] veth1: entered promiscuous mode
[ 22.297192][ T57] br0: port 1(veth0) entered blocking state
[ 22.297739][ T57] br0: port 1(veth0) entered forwarding state
[ 22.450597][ T72] br0: port 2(veth1) entered blocking state
[ 22.451180][ T72] br0: port 2(veth1) entered forwarding state
[ 27.999763][ T69] veth1: left allmulticast mode
[ 28.000196][ T69] veth1: left promiscuous mode
[ 28.000799][ T69] br0: port 2(veth1) entered disabled state
[ 28.004400][ T69] veth0: left allmulticast mode
[ 28.004761][ T69] veth0: left promiscuous mode
[ 28.005250][ T69] br0: port 1(veth0) entered disabled state
[ 28.060177][ T69] ==================================================================
[ 28.060519][ T69] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 28.060848][ T69] Read of size 1 at addr ffff8880072896ac by task kworker/u16:1/69
[ 28.061204][ T69]
[ 28.061294][ T69] CPU: 0 UID: 0 PID: 69 Comm: kworker/u16:1 Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 28.061299][ T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.061302][ T69] Workqueue: netns cleanup_net
[ 28.061309][ T69] Call Trace:
[ 28.061311][ T69]
[ 28.061313][ T69] dump_stack_lvl+0x82/0xc0
[ 28.061319][ T69] print_address_description.constprop.0+0x2c/0x3a0
[ 28.061329][ T69] ? kobject_put+0xbb/0xd0
[ 28.061333][ T69] print_report+0xb4/0x270
[ 28.061337][ T69] ? kobject_put+0xbb/0xd0
[ 28.061340][ T69] ? kasan_addr_to_slab+0x21/0x70
[ 28.061344][ T69] ? kobject_put+0xbb/0xd0
[ 28.061347][ T69] kasan_report+0xca/0x100
[ 28.061352][ T69] ? kobject_put+0xbb/0xd0
[ 28.061357][ T69] kobject_put+0xbb/0xd0
[ 28.061361][ T69] netdev_run_todo+0x5f0/0xc60
[ 28.061367][ T69] ? rtnl_is_locked+0x15/0x20
[ 28.061372][ T69] ? dev_ingress_queue_create+0x190/0x190
[ 28.061376][ T69] ? generic_xdp_install+0x410/0x410
[ 28.061383][ T69] ops_undo_list+0x714/0x890
[ 28.061392][ T69] ? netns_get+0x110/0x110
[ 28.061395][ T69] ? cleanup_net+0x2d6/0x830
[ 28.061400][ T69] cleanup_net+0x3b2/0x830
[ 28.061403][ T69] ? net_passive_dec+0x190/0x190
[ 28.061407][ T69] ? rcu_is_watching+0x12/0xb0
[ 28.061414][ T69] process_one_work+0xe35/0x1650
[ 28.061424][ T69] ? pwq_dec_nr_in_flight+0x550/0x550
[ 28.061429][ T69] ? assign_work+0x168/0x240
[ 28.061433][ T69] worker_thread+0x591/0xcf0
[ 28.061439][ T69] ? rescuer_thread+0xd10/0xd10
[ 28.061442][ T69] kthread+0x37b/0x5f0
[ 28.061447][ T69] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.061450][ T69] ? ret_from_fork+0x1b/0x270
[ 28.061459][ T69] ? __lock_release+0x5d/0x170
[ 28.061466][ T69] ? rcu_is_watching+0x12/0xb0
[ 28.061469][ T69] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.061472][ T69] ret_from_fork+0x1db/0x270
[ 28.061475][ T69] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.061478][ T69] ret_from_fork_asm+0x11/0x20
[ 28.061488][ T69]
[ 28.061489][ T69]
[ 28.068836][ T69] Allocated by task 251:
[ 28.068981][ T69] kasan_save_stack+0x24/0x40
[ 28.069178][ T69] kasan_save_track+0x14/0x30
[ 28.069416][ T69] __kasan_kmalloc+0x7b/0x90
[ 28.069586][ T69] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 28.069775][ T69] alloc_netdev_mqs+0x7d/0x1370
[ 28.070024][ T69] sit_init_net+0x169/0x550
[ 28.070205][ T69] ops_init+0x189/0x550
[ 28.070340][ T69] setup_net+0xf1/0x380
[ 28.070549][ T69] copy_net_ns+0x21a/0x380
[ 28.070730][ T69] create_new_namespaces+0x35f/0x900
[ 28.070928][ T69] unshare_nsproxy_namespaces+0x89/0x120
[ 28.071178][ T69] ksys_unshare+0x2a3/0x660
[ 28.071363][ T69] __x64_sys_unshare+0x31/0x40
[ 28.071600][ T69] do_syscall_64+0xc1/0xfd0
[ 28.071793][ T69] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 28.072004][ T69]
[ 28.072092][ T69] Freed by task 69:
[ 28.072226][ T69] kasan_save_stack+0x24/0x40
[ 28.072482][ T69] kasan_save_track+0x14/0x30
[ 28.072704][ T69] __kasan_save_free_info+0x3b/0x60
[ 28.072887][ T69] __kasan_slab_free+0x3f/0x60
[ 28.073067][ T69] kfree+0x21d/0x540
[ 28.073258][ T69] device_release+0x9c/0x210
[ 28.073441][ T69] kobject_cleanup+0xfe/0x360
[ 28.073629][ T69] netdev_run_todo+0x81f/0xc60
[ 28.073853][ T69] ops_undo_list+0x714/0x890
[ 28.074092][ T69] cleanup_net+0x3b2/0x830
[ 28.074314][ T69] process_one_work+0xe35/0x1650
[ 28.074488][ T69] worker_thread+0x591/0xcf0
[ 28.074662][ T69] kthread+0x37b/0x5f0
[ 28.074814][ T69] ret_from_fork+0x1db/0x270
[ 28.075009][ T69] ret_from_fork_asm+0x11/0x20
[ 28.075203][ T69]
[ 28.075301][ T69] The buggy address belongs to the object at ffff888007289000
[ 28.075301][ T69] which belongs to the cache kmalloc-4k of size 4096
[ 28.075878][ T69] The buggy address is located 1708 bytes inside of
[ 28.075878][ T69] freed 4096-byte region [ffff888007289000, ffff88800728a000)
[ 28.076473][ T69]
[ 28.076566][ T69] The buggy address belongs to the physical page:
[ 28.076812][ T69] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x7288
[ 28.077155][ T69] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 28.077439][ T69] flags: 0x80000000000040(head|node=0|zone=1)
[ 28.077682][ T69] page_type: f5(slab)
[ 28.077842][ T69] raw: 0080000000000040 ffff888001043700 ffffea000009a210 ffffea00001bb210
[ 28.078178][ T69] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 28.078515][ T69] head: 0080000000000040 ffff888001043700 ffffea000009a210 ffffea00001bb210
[ 28.078875][ T69] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 28.079200][ T69] head: 0080000000000003 ffffea00001ca201 00000000ffffffff 00000000ffffffff
[ 28.079530][ T69] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 28.080121][ T69] page dumped because: kasan: bad access detected
[ 28.080488][ T69]
[ 28.080626][ T69] Memory state around the buggy address:
[ 28.080909][ T69] ffff888007289580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 28.081223][ T69] ffff888007289600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 28.081486][ T69] >ffff888007289680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 28.081817][ T69] ^
[ 28.082133][ T69] ffff888007289700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 28.082460][ T69] ffff888007289780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 28.082802][ T69] ==================================================================
[ 28.083193][ T69] Disabling lock debugging due to kernel taint
[ 28.083438][ T69] ------------[ cut here ]------------
[ 28.083594][ T69] refcount_t: underflow; use-after-free.
[ 28.083799][ T69] WARNING: CPU: 0 PID: 69 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 28.084093][ T69] Modules linked in: ebtable_filter ebt_redirect ebt_ip ebtable_broute ebtables x_tables bridge stp llc veth
[ 28.084514][ T69] CPU: 0 UID: 0 PID: 69 Comm: kworker/u16:1 Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 28.084943][ T69] Tainted: [B]=BAD_PAGE
[ 28.085071][ T69] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.085282][ T69] Workqueue: netns cleanup_net
[ 28.085471][ T69] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 28.085694][ T69] Code: 83 90 02 80 fb 01 0f 87 95 6b d6 fe 83 e3 01 0f 85 51 ff ff ff c6 05 b1 83 90 02 01 90 48 c7 c7 a0 de 45 86 e8 c2 8b 15 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 f0 34 a1 ff e9 ba fe ff ff
[ 28.086404][ T69] RSP: 0018:ffffc900004a7a08 EFLAGS: 00010282
[ 28.086616][ T69] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 28.086875][ T69] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 28.087134][ T69] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff0dbe220
[ 28.087398][ T69] R10: 0000000000000003 R11: ffffc900004a7580 R12: 0000000000000001
[ 28.087650][ T69] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 28.087920][ T69] FS: 0000000000000000(0000) GS:ffff8880adfec000(0000) knlGS:0000000000000000
[ 28.088316][ T69] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 28.088531][ T69] CR2: 00007f16b747a000 CR3: 0000000027735006 CR4: 0000000000772ef0
[ 28.088795][ T69] PKRU: 55555554
[ 28.089005][ T69] Call Trace:
[ 28.089131][ T69]
[ 28.089241][ T69] netdev_run_todo+0x5f0/0xc60
[ 28.089429][ T69] ? rtnl_is_locked+0x15/0x20
[ 28.089598][ T69] ? dev_ingress_queue_create+0x190/0x190
[ 28.089863][ T69] ? generic_xdp_install+0x410/0x410
[ 28.090033][ T69] ops_undo_list+0x714/0x890
[ 28.090205][ T69] ? netns_get+0x110/0x110
[ 28.090383][ T69] ? cleanup_net+0x2d6/0x830
[ 28.090639][ T69] cleanup_net+0x3b2/0x830
[ 28.090832][ T69] ? net_passive_dec+0x190/0x190
[ 28.091005][ T69] ? rcu_is_watching+0x12/0xb0
[ 28.091178][ T69] process_one_work+0xe35/0x1650
[ 28.091357][ T69] ? pwq_dec_nr_in_flight+0x550/0x550
[ 28.091547][ T69] ? assign_work+0x168/0x240
[ 28.091741][ T69] worker_thread+0x591/0xcf0
[ 28.092021][ T69] ? rescuer_thread+0xd10/0xd10
[ 28.092320][ T69] kthread+0x37b/0x5f0
[ 28.092455][ T69] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.092624][ T69] ? ret_from_fork+0x1b/0x270
[ 28.092799][ T69] ? __lock_release+0x5d/0x170
[ 28.092968][ T69] ? rcu_is_watching+0x12/0xb0
[ 28.093213][ T69] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.093391][ T69] ret_from_fork+0x1db/0x270
[ 28.093557][ T69] ? kthread_is_per_cpu+0xc0/0xc0
[ 28.093723][ T69] ret_from_fork_asm+0x11/0x20
[ 28.093902][ T69]
[ 28.094037][ T69] irq event stamp: 16955
[ 28.094181][ T69] hardirqs last enabled at (16955): [] irqentry_exit+0x3b/0x80
[ 28.094804][ T69] hardirqs last disabled at (16954): [] handle_softirqs+0x47f/0x610
[ 28.095175][ T69] softirqs last enabled at (16432): [] handle_softirqs+0x352/0x610
[ 28.095659][ T69] softirqs last disabled at (15471): [] irq_exit_rcu+0xab/0x100
[ 28.096074][ T69] ---[ end trace 0000000000000000 ]---