[ 20.790782][ T318] br1: port 1(veth1) entered blocking state
[ 20.791388][ T318] br1: port 1(veth1) entered disabled state
[ 20.791961][ T318] veth1: entered allmulticast mode
[ 20.797041][ T318] veth1: entered promiscuous mode
[ 20.912141][ T46] br1: port 1(veth1) entered blocking state
[ 20.912757][ T46] br1: port 1(veth1) entered forwarding state
[ 21.025896][ T320] br1: port 2(veth2) entered blocking state
[ 21.026398][ T320] br1: port 2(veth2) entered disabled state
[ 21.027168][ T320] veth2: entered allmulticast mode
[ 21.030471][ T320] veth2: entered promiscuous mode
[ 21.152652][ T46] br1: port 2(veth2) entered blocking state
[ 21.153155][ T46] br1: port 2(veth2) entered forwarding state
[ 21.551493][ T324] 8021q: 802.1Q VLAN Support v1.8
[ 22.783132][ T334] GACT probability NOT on
[ 31.083465][ T372] Mirror/redirect action on
[ 70.816095][ T552] ==================================================================
[ 70.816393][ T552] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 70.816642][ T552] Read of size 1 at addr ffff88800c0bc6ac by task ip/552
[ 70.816847][ T552]
[ 70.816940][ T552] CPU: 0 UID: 0 PID: 552 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 70.816945][ T552] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 70.816947][ T552] Call Trace:
[ 70.816948][ T552]
[ 70.816950][ T552] dump_stack_lvl+0x82/0xc0
[ 70.816956][ T552] print_address_description.constprop.0+0x2c/0x3a0
[ 70.816962][ T552] ? kobject_put+0xbb/0xd0
[ 70.816966][ T552] print_report+0xb4/0x270
[ 70.816969][ T552] ? kobject_put+0xbb/0xd0
[ 70.816972][ T552] ? kasan_addr_to_slab+0x21/0x70
[ 70.816975][ T552] ? kobject_put+0xbb/0xd0
[ 70.816979][ T552] kasan_report+0xca/0x100
[ 70.816982][ T552] ? kobject_put+0xbb/0xd0
[ 70.816987][ T552] kobject_put+0xbb/0xd0
[ 70.816991][ T552] netdev_run_todo+0x5f0/0xc60
[ 70.816996][ T552] ? dev_ingress_queue_create+0x190/0x190
[ 70.816998][ T552] ? generic_xdp_install+0x410/0x410
[ 70.817002][ T552] ? lockdep_hardirqs_on+0x7c/0x110
[ 70.817009][ T552] rtnl_dellink+0x350/0xa30
[ 70.817016][ T552] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 70.817035][ T552] ? find_held_lock+0x2b/0x80
[ 70.817041][ T552] ? __lock_acquire+0x449/0x7e0
[ 70.817048][ T552] ? find_held_lock+0x2b/0x80
[ 70.817051][ T552] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 70.817054][ T552] ? __lock_release+0x5d/0x170
[ 70.817058][ T552] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 70.817062][ T552] rtnetlink_rcv_msg+0x709/0xc00
[ 70.817066][ T552] ? rtnl_port_fill+0x850/0x850
[ 70.817068][ T552] ? __lock_acquire+0x449/0x7e0
[ 70.817075][ T552] netlink_rcv_skb+0x121/0x340
[ 70.817080][ T552] ? rtnl_port_fill+0x850/0x850
[ 70.817083][ T552] ? netlink_ack+0xdd0/0xdd0
[ 70.817090][ T552] ? netlink_deliver_tap+0x13e/0x340
[ 70.817093][ T552] ? netlink_deliver_tap+0xc3/0x340
[ 70.817097][ T552] netlink_unicast+0x4aa/0x780
[ 70.817101][ T552] ? netlink_attachskb+0x810/0x810
[ 70.817105][ T552] ? __lock_acquire+0x449/0x7e0
[ 70.817110][ T552] netlink_sendmsg+0x714/0xbd0
[ 70.817114][ T552] ? netlink_unicast+0x780/0x780
[ 70.817118][ T552] ? __import_iovec+0x230/0x3b0
[ 70.817127][ T552] ? netlink_unicast+0x780/0x780
[ 70.817131][ T552] ____sys_sendmsg+0x3dd/0x890
[ 70.817136][ T552] ? get_timestamp.constprop.0+0x380/0x380
[ 70.817140][ T552] ? __copy_msghdr+0x3c0/0x3c0
[ 70.817147][ T552] ___sys_sendmsg+0xed/0x170
[ 70.817150][ T552] ? kasan_record_aux_stack+0x8c/0xa0
[ 70.817153][ T552] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 70.817159][ T552] ? copy_msghdr_from_user+0x110/0x110
[ 70.817164][ T552] ? find_held_lock+0x2b/0x80
[ 70.817168][ T552] ? __lock_acquire+0x449/0x7e0
[ 70.817174][ T552] ? find_held_lock+0x2b/0x80
[ 70.817177][ T552] ? __virt_addr_valid+0x22a/0x450
[ 70.817182][ T552] ? __lock_release+0x5d/0x170
[ 70.817188][ T552] __sys_sendmsg+0x10b/0x1a0
[ 70.817191][ T552] ? __call_rcu_common.constprop.0+0x318/0x630
[ 70.817195][ T552] ? __sys_sendmsg_sock+0x20/0x20
[ 70.817203][ T552] ? rcu_is_watching+0x12/0xb0
[ 70.817207][ T552] do_syscall_64+0xc1/0xfd0
[ 70.817212][ T552] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 70.817215][ T552] RIP: 0033:0x7f3fc07291d7
[ 70.817222][ T552] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[ 70.817224][ T552] RSP: 002b:00007fffad697498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 70.817228][ T552] RAX: ffffffffffffffda RBX: 00007fffad697bc0 RCX: 00007f3fc07291d7
[ 70.817231][ T552] RDX: 0000000000000000 RSI: 00007fffad697500 RDI: 0000000000000005
[ 70.817232][ T552] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 70.817234][ T552] R10: 00007f3fc0625f60 R11: 0000000000000246 R12: 0000000000000002
[ 70.817236][ T552] R13: 00000000690df73b R14: 0000000000499600 R15: 0000000000000000
[ 70.817242][ T552]
[ 70.817243][ T552]
[ 70.829221][ T552] Allocated by task 341:
[ 70.829350][ T552] kasan_save_stack+0x24/0x40
[ 70.829524][ T552] kasan_save_track+0x14/0x30
[ 70.829694][ T552] __kasan_kmalloc+0x7b/0x90
[ 70.829858][ T552] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 70.830034][ T552] alloc_netdev_mqs+0x7d/0x1370
[ 70.830213][ T552] rtnl_create_link+0xa9e/0xe20
[ 70.830381][ T552] rtnl_newlink_create+0x203/0x770
[ 70.830550][ T552] __rtnl_newlink+0x231/0xa30
[ 70.830730][ T552] rtnl_newlink+0x693/0xa60
[ 70.830897][ T552] rtnetlink_rcv_msg+0x709/0xc00
[ 70.831068][ T552] netlink_rcv_skb+0x121/0x340
[ 70.831247][ T552] netlink_unicast+0x4aa/0x780
[ 70.831411][ T552] netlink_sendmsg+0x714/0xbd0
[ 70.831581][ T552] ____sys_sendmsg+0x3dd/0x890
[ 70.831750][ T552] ___sys_sendmsg+0xed/0x170
[ 70.831918][ T552] __sys_sendmsg+0x10b/0x1a0
[ 70.832111][ T552] do_syscall_64+0xc1/0xfd0
[ 70.832277][ T552] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 70.832488][ T552]
[ 70.832587][ T552] Freed by task 552:
[ 70.832715][ T552] kasan_save_stack+0x24/0x40
[ 70.832879][ T552] kasan_save_track+0x14/0x30
[ 70.833049][ T552] __kasan_save_free_info+0x3b/0x60
[ 70.833230][ T552] __kasan_slab_free+0x3f/0x60
[ 70.833403][ T552] kfree+0x21d/0x540
[ 70.833530][ T552] device_release+0x9c/0x210
[ 70.833717][ T552] kobject_cleanup+0xfe/0x360
[ 70.833880][ T552] netdev_run_todo+0x81f/0xc60
[ 70.834049][ T552] rtnl_dellink+0x350/0xa30
[ 70.834218][ T552] rtnetlink_rcv_msg+0x709/0xc00
[ 70.834382][ T552] netlink_rcv_skb+0x121/0x340
[ 70.834553][ T552] netlink_unicast+0x4aa/0x780
[ 70.834769][ T552] netlink_sendmsg+0x714/0xbd0
[ 70.834956][ T552] ____sys_sendmsg+0x3dd/0x890
[ 70.835138][ T552] ___sys_sendmsg+0xed/0x170
[ 70.835321][ T552] __sys_sendmsg+0x10b/0x1a0
[ 70.835499][ T552] do_syscall_64+0xc1/0xfd0
[ 70.835687][ T552] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 70.835911][ T552]
[ 70.836002][ T552] The buggy address belongs to the object at ffff88800c0bc000
[ 70.836002][ T552] which belongs to the cache kmalloc-4k of size 4096
[ 70.836450][ T552] The buggy address is located 1708 bytes inside of
[ 70.836450][ T552] freed 4096-byte region [ffff88800c0bc000, ffff88800c0bd000)
[ 70.836886][ T552]
[ 70.836976][ T552] The buggy address belongs to the physical page:
[ 70.837201][ T552] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xc0b8
[ 70.837525][ T552] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 70.837798][ T552] flags: 0x80000000000040(head|node=0|zone=1)
[ 70.838028][ T552] page_type: f5(slab)
[ 70.838175][ T552] raw: 0080000000000040 ffff888001043700 ffffea00001c1210 ffffea0000207c10
[ 70.838506][ T552] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 70.838826][ T552] head: 0080000000000040 ffff888001043700 ffffea00001c1210 ffffea0000207c10
[ 70.839156][ T552] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 70.839586][ T552] head: 0080000000000003 ffffea0000302e01 00000000ffffffff 00000000ffffffff
[ 70.839903][ T552] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 70.840329][ T552] page dumped because: kasan: bad access detected
[ 70.840661][ T552]
[ 70.840764][ T552] Memory state around the buggy address:
[ 70.840941][ T552] ffff88800c0bc580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 70.841207][ T552] ffff88800c0bc600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 70.841470][ T552] >ffff88800c0bc680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 70.841833][ T552] ^
[ 70.842007][ T552] ffff88800c0bc700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 70.842267][ T552] ffff88800c0bc780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 70.842524][ T552] ==================================================================
[ 70.843279][ T552] Disabling lock debugging due to kernel taint
[ 70.843532][ T552] ------------[ cut here ]------------
[ 70.843700][ T552] refcount_t: underflow; use-after-free.
[ 70.843953][ T552] WARNING: CPU: 0 PID: 552 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 70.844272][ T552] Modules linked in: act_mirred cls_flower act_gact cls_matchall 8021q bridge stp llc sch_ingress vrf veth
[ 70.844694][ T552] CPU: 0 UID: 0 PID: 552 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 70.845137][ T552] Tainted: [B]=BAD_PAGE
[ 70.845273][ T552] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 70.845492][ T552] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 70.845728][ T552] 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 a5 a4 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
[ 70.846471][ T552] RSP: 0018:ffffc90000daf1f0 EFLAGS: 00010286
[ 70.846697][ T552] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 70.846969][ T552] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 70.847428][ T552] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff4a7e134
[ 70.847693][ T552] R10: 0000000000000003 R11: ffffc90000daed80 R12: 0000000000000001
[ 70.847961][ T552] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 70.848330][ T552] FS: 00007f3fc055b800(0000) GS:ffff88808f9f2000(0000) knlGS:0000000000000000
[ 70.848653][ T552] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 70.848881][ T552] CR2: 00000000004e5a00 CR3: 0000000002a24006 CR4: 0000000000772ef0
[ 70.849245][ T552] PKRU: 55555554
[ 70.849378][ T552] Call Trace:
[ 70.849512][ T552]
[ 70.849603][ T552] netdev_run_todo+0x5f0/0xc60
[ 70.849881][ T552] ? dev_ingress_queue_create+0x190/0x190
[ 70.850064][ T552] ? generic_xdp_install+0x410/0x410
[ 70.850249][ T552] ? lockdep_hardirqs_on+0x7c/0x110
[ 70.850428][ T552] rtnl_dellink+0x350/0xa30
[ 70.850696][ T552] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 70.850940][ T552] ? find_held_lock+0x2b/0x80
[ 70.851122][ T552] ? __lock_acquire+0x449/0x7e0
[ 70.851301][ T552] ? find_held_lock+0x2b/0x80
[ 70.851572][ T552] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 70.851752][ T552] ? __lock_release+0x5d/0x170
[ 70.851943][ T552] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 70.852162][ T552] rtnetlink_rcv_msg+0x709/0xc00
[ 70.852434][ T552] ? rtnl_port_fill+0x850/0x850
[ 70.852617][ T552] ? __lock_acquire+0x449/0x7e0
[ 70.852803][ T552] netlink_rcv_skb+0x121/0x340
[ 70.853083][ T552] ? rtnl_port_fill+0x850/0x850
[ 70.853367][ T552] ? netlink_ack+0xdd0/0xdd0
[ 70.853553][ T552] ? netlink_deliver_tap+0x13e/0x340
[ 70.853729][ T552] ? netlink_deliver_tap+0xc3/0x340
[ 70.853918][ T552] netlink_unicast+0x4aa/0x780
[ 70.854191][ T552] ? netlink_attachskb+0x810/0x810
[ 70.854366][ T552] ? __lock_acquire+0x449/0x7e0
[ 70.854541][ T552] netlink_sendmsg+0x714/0xbd0
[ 70.854715][ T552] ? netlink_unicast+0x780/0x780
[ 70.854991][ T552] ? __import_iovec+0x230/0x3b0
[ 70.855175][ T552] ? netlink_unicast+0x780/0x780
[ 70.855353][ T552] ____sys_sendmsg+0x3dd/0x890
[ 70.855532][ T552] ? get_timestamp.constprop.0+0x380/0x380
[ 70.855856][ T552] ? __copy_msghdr+0x3c0/0x3c0
[ 70.856040][ T552] ___sys_sendmsg+0xed/0x170
[ 70.856215][ T552] ? kasan_record_aux_stack+0x8c/0xa0
[ 70.856393][ T552] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 70.856709][ T552] ? copy_msghdr_from_user+0x110/0x110
[ 70.856895][ T552] ? find_held_lock+0x2b/0x80
[ 70.857075][ T552] ? __lock_acquire+0x449/0x7e0
[ 70.857344][ T552] ? find_held_lock+0x2b/0x80
[ 70.857518][ T552] ? __virt_addr_valid+0x22a/0x450
[ 70.857695][ T552] ? __lock_release+0x5d/0x170
[ 70.857882][ T552] __sys_sendmsg+0x10b/0x1a0
[ 70.858153][ T552] ? __call_rcu_common.constprop.0+0x318/0x630
[ 70.858397][ T552] ? __sys_sendmsg_sock+0x20/0x20
[ 70.858579][ T552] ? rcu_is_watching+0x12/0xb0
[ 70.858756][ T552] do_syscall_64+0xc1/0xfd0
[ 70.859035][ T552] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 70.859258][ T552] RIP: 0033:0x7f3fc07291d7
[ 70.859442][ T552] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
[ 70.860076][ T552] RSP: 002b:00007fffad697498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 70.860444][ T552] RAX: ffffffffffffffda RBX: 00007fffad697bc0 RCX: 00007f3fc07291d7
[ 70.860812][ T552] RDX: 0000000000000000 RSI: 00007fffad697500 RDI: 0000000000000005
[ 70.861081][ T552] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 70.861443][ T552] R10: 00007f3fc0625f60 R11: 0000000000000246 R12: 0000000000000002
[ 70.861708][ T552] R13: 00000000690df73b R14: 0000000000499600 R15: 0000000000000000
[ 70.861986][ T552]
[ 70.862119][ T552] irq event stamp: 44135
[ 70.862351][ T552] hardirqs last enabled at (44135): [] finish_task_switch.isra.0+0x245/0x960
[ 70.862703][ T552] hardirqs last disabled at (44134): [] __schedule+0x94a/0x1b10
[ 70.863035][ T552] softirqs last enabled at (44056): [] handle_softirqs+0x352/0x610
[ 70.863340][ T552] softirqs last disabled at (44051): [] irq_exit_rcu+0xab/0x100
[ 70.863651][ T552] ---[ end trace 0000000000000000 ]---
[ 71.330912][ T559] br1: port 1(veth1) entered disabled state
[ 71.394381][ T560] br1: port 2(veth2) entered disabled state
[ 71.463582][ T561] veth2: left allmulticast mode
[ 71.463865][ T561] veth2: left promiscuous mode
[ 71.464250][ T561] br1: port 2(veth2) entered disabled state
[ 71.465653][ T561] veth1: left allmulticast mode
[ 71.465921][ T561] veth1: left promiscuous mode
[ 71.466271][ T561] br1: port 1(veth1) entered disabled state