[ 20.588501][ T287] 8021q: 802.1Q VLAN Support v1.8
[ 23.993555][ T313] br1: port 1(veth1) entered blocking state
[ 23.994529][ T313] br1: port 1(veth1) entered disabled state
[ 23.995843][ T313] veth1: entered allmulticast mode
[ 24.001731][ T313] veth1: entered promiscuous mode
[ 24.196906][ T152] br1: port 1(veth1) entered blocking state
[ 24.197660][ T152] br1: port 1(veth1) entered forwarding state
[ 44.746241][ T445] ==================================================================
[ 44.746597][ T445] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 44.746927][ T445] Read of size 1 at addr ffff8880101f46ac by task ip/445
[ 44.747183][ T445]
[ 44.747281][ T445] CPU: 1 UID: 0 PID: 445 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 44.747287][ T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.747291][ T445] Call Trace:
[ 44.747294][ T445]
[ 44.747296][ T445] dump_stack_lvl+0x82/0xc0
[ 44.747304][ T445] print_address_description.constprop.0+0x2c/0x3a0
[ 44.747318][ T445] ? kobject_put+0xbb/0xd0
[ 44.747322][ T445] print_report+0xb4/0x270
[ 44.747325][ T445] ? kobject_put+0xbb/0xd0
[ 44.747328][ T445] ? kasan_addr_to_slab+0x21/0x70
[ 44.747332][ T445] ? kobject_put+0xbb/0xd0
[ 44.747335][ T445] kasan_report+0xca/0x100
[ 44.747339][ T445] ? kobject_put+0xbb/0xd0
[ 44.747344][ T445] kobject_put+0xbb/0xd0
[ 44.747348][ T445] netdev_run_todo+0x5f0/0xc60
[ 44.747356][ T445] ? dev_ingress_queue_create+0x190/0x190
[ 44.747359][ T445] ? generic_xdp_install+0x410/0x410
[ 44.747363][ T445] ? lockdep_hardirqs_on+0x7c/0x110
[ 44.747374][ T445] rtnl_dellink+0x350/0xa30
[ 44.747381][ T445] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 44.747399][ T445] ? find_held_lock+0x2b/0x80
[ 44.747412][ T445] ? __lock_acquire+0x449/0x7e0
[ 44.747419][ T445] ? find_held_lock+0x2b/0x80
[ 44.747423][ T445] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 44.747425][ T445] ? __lock_release+0x5d/0x170
[ 44.747430][ T445] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 44.747433][ T445] rtnetlink_rcv_msg+0x709/0xc00
[ 44.747437][ T445] ? rtnl_port_fill+0x850/0x850
[ 44.747440][ T445] ? __lock_acquire+0x449/0x7e0
[ 44.747447][ T445] netlink_rcv_skb+0x121/0x340
[ 44.747454][ T445] ? rtnl_port_fill+0x850/0x850
[ 44.747458][ T445] ? netlink_ack+0xdd0/0xdd0
[ 44.747465][ T445] ? netlink_deliver_tap+0x13e/0x340
[ 44.747468][ T445] ? netlink_deliver_tap+0xc3/0x340
[ 44.747472][ T445] netlink_unicast+0x4aa/0x780
[ 44.747476][ T445] ? netlink_attachskb+0x810/0x810
[ 44.747480][ T445] ? __lock_acquire+0x449/0x7e0
[ 44.747486][ T445] netlink_sendmsg+0x714/0xbd0
[ 44.747491][ T445] ? netlink_unicast+0x780/0x780
[ 44.747494][ T445] ? __import_iovec+0x230/0x3b0
[ 44.747507][ T445] ? netlink_unicast+0x780/0x780
[ 44.747510][ T445] ____sys_sendmsg+0x3dd/0x890
[ 44.747520][ T445] ? get_timestamp.constprop.0+0x380/0x380
[ 44.747523][ T445] ? __copy_msghdr+0x3c0/0x3c0
[ 44.747532][ T445] ___sys_sendmsg+0xed/0x170
[ 44.747535][ T445] ? kasan_record_aux_stack+0x8c/0xa0
[ 44.747539][ T445] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 44.747551][ T445] ? copy_msghdr_from_user+0x110/0x110
[ 44.747557][ T445] ? find_held_lock+0x2b/0x80
[ 44.747561][ T445] ? __lock_acquire+0x449/0x7e0
[ 44.747567][ T445] ? find_held_lock+0x2b/0x80
[ 44.747571][ T445] ? __virt_addr_valid+0x22a/0x450
[ 44.747582][ T445] ? __lock_release+0x5d/0x170
[ 44.747589][ T445] __sys_sendmsg+0x10b/0x1a0
[ 44.747592][ T445] ? __call_rcu_common.constprop.0+0x318/0x630
[ 44.747596][ T445] ? __sys_sendmsg_sock+0x20/0x20
[ 44.747604][ T445] ? rcu_is_watching+0x12/0xb0
[ 44.747608][ T445] do_syscall_64+0xc1/0xfd0
[ 44.747614][ T445] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 44.747618][ T445] RIP: 0033:0x7f29609101d7
[ 44.747624][ T445] 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
[ 44.747627][ T445] RSP: 002b:00007fffab7ac928 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 44.747632][ T445] RAX: ffffffffffffffda RBX: 00007fffab7ad050 RCX: 00007f29609101d7
[ 44.747634][ T445] RDX: 0000000000000000 RSI: 00007fffab7ac990 RDI: 0000000000000005
[ 44.747636][ T445] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 44.747638][ T445] R10: 00007f296080cf60 R11: 0000000000000246 R12: 0000000000000002
[ 44.747641][ T445] R13: 00000000690deefc R14: 0000000000499600 R15: 0000000000000000
[ 44.747652][ T445]
[ 44.747654][ T445]
[ 44.761359][ T445] Allocated by task 320:
[ 44.761497][ T445] kasan_save_stack+0x24/0x40
[ 44.761702][ T445] kasan_save_track+0x14/0x30
[ 44.761897][ T445] __kasan_kmalloc+0x7b/0x90
[ 44.762073][ T445] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 44.762269][ T445] alloc_netdev_mqs+0x7d/0x1370
[ 44.762445][ T445] rtnl_create_link+0xa9e/0xe20
[ 44.762627][ T445] rtnl_newlink_create+0x203/0x770
[ 44.762816][ T445] __rtnl_newlink+0x231/0xa30
[ 44.763009][ T445] rtnl_newlink+0x693/0xa60
[ 44.763186][ T445] rtnetlink_rcv_msg+0x709/0xc00
[ 44.763354][ T445] netlink_rcv_skb+0x121/0x340
[ 44.763534][ T445] netlink_unicast+0x4aa/0x780
[ 44.763734][ T445] netlink_sendmsg+0x714/0xbd0
[ 44.763933][ T445] ____sys_sendmsg+0x3dd/0x890
[ 44.764117][ T445] ___sys_sendmsg+0xed/0x170
[ 44.764286][ T445] __sys_sendmsg+0x10b/0x1a0
[ 44.764459][ T445] do_syscall_64+0xc1/0xfd0
[ 44.764632][ T445] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 44.764871][ T445]
[ 44.764972][ T445] Freed by task 445:
[ 44.765114][ T445] kasan_save_stack+0x24/0x40
[ 44.765302][ T445] kasan_save_track+0x14/0x30
[ 44.765477][ T445] __kasan_save_free_info+0x3b/0x60
[ 44.765653][ T445] __kasan_slab_free+0x3f/0x60
[ 44.765847][ T445] kfree+0x21d/0x540
[ 44.765981][ T445] device_release+0x9c/0x210
[ 44.766164][ T445] kobject_cleanup+0xfe/0x360
[ 44.766332][ T445] netdev_run_todo+0x81f/0xc60
[ 44.766500][ T445] rtnl_dellink+0x350/0xa30
[ 44.766684][ T445] rtnetlink_rcv_msg+0x709/0xc00
[ 44.766863][ T445] netlink_rcv_skb+0x121/0x340
[ 44.767033][ T445] netlink_unicast+0x4aa/0x780
[ 44.767208][ T445] netlink_sendmsg+0x714/0xbd0
[ 44.767371][ T445] ____sys_sendmsg+0x3dd/0x890
[ 44.767542][ T445] ___sys_sendmsg+0xed/0x170
[ 44.767731][ T445] __sys_sendmsg+0x10b/0x1a0
[ 44.767914][ T445] do_syscall_64+0xc1/0xfd0
[ 44.768080][ T445] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 44.768303][ T445]
[ 44.768398][ T445] The buggy address belongs to the object at ffff8880101f4000
[ 44.768398][ T445] which belongs to the cache kmalloc-4k of size 4096
[ 44.768824][ T445] The buggy address is located 1708 bytes inside of
[ 44.768824][ T445] freed 4096-byte region [ffff8880101f4000, ffff8880101f5000)
[ 44.769247][ T445]
[ 44.769337][ T445] The buggy address belongs to the physical page:
[ 44.769551][ T445] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x101f0
[ 44.770022][ T445] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 44.770308][ T445] flags: 0x80000000000040(head|node=0|zone=1)
[ 44.770556][ T445] page_type: f5(slab)
[ 44.770869][ T445] raw: 0080000000000040 ffff888001043700 ffffea000012d010 ffffea000007fc10
[ 44.771198][ T445] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 44.771550][ T445] head: 0080000000000040 ffff888001043700 ffffea000012d010 ffffea000007fc10
[ 44.772007][ T445] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 44.772324][ T445] head: 0080000000000003 ffffea0000407c01 00000000ffffffff 00000000ffffffff
[ 44.772782][ T445] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 44.773092][ T445] page dumped because: kasan: bad access detected
[ 44.773419][ T445]
[ 44.773508][ T445] Memory state around the buggy address:
[ 44.773695][ T445] ffff8880101f4580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 44.773969][ T445] ffff8880101f4600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 44.774323][ T445] >ffff8880101f4680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 44.774567][ T445] ^
[ 44.774770][ T445] ffff8880101f4700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 44.775149][ T445] ffff8880101f4780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 44.775417][ T445] ==================================================================
[ 44.775890][ T445] Disabling lock debugging due to kernel taint
[ 44.776199][ T445] ------------[ cut here ]------------
[ 44.776368][ T445] refcount_t: underflow; use-after-free.
[ 44.776585][ T445] WARNING: CPU: 1 PID: 445 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 44.777106][ T445] Modules linked in: bridge stp llc 8021q vrf veth
[ 44.777377][ T445] CPU: 1 UID: 0 PID: 445 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 44.777848][ T445] Tainted: [B]=BAD_PAGE
[ 44.777989][ T445] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.778259][ T445] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 44.778505][ T445] 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 9d 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
[ 44.779131][ T445] RSP: 0018:ffffc90000bd71f0 EFLAGS: 00010286
[ 44.779368][ T445] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 44.779645][ T445] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 44.779919][ T445] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff3c7e134
[ 44.780186][ T445] R10: 0000000000000003 R11: ffffc90000bd6d80 R12: 0000000000000001
[ 44.780436][ T445] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 44.780709][ T445] FS: 00007f2960742800(0000) GS:ffff888090e72000(0000) knlGS:0000000000000000
[ 44.781041][ T445] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 44.781272][ T445] CR2: 00007fa95b7c6000 CR3: 0000000008f6c004 CR4: 0000000000772ef0
[ 44.781522][ T445] PKRU: 55555554
[ 44.781767][ T445] Call Trace:
[ 44.781905][ T445]
[ 44.782006][ T445] netdev_run_todo+0x5f0/0xc60
[ 44.782204][ T445] ? dev_ingress_queue_create+0x190/0x190
[ 44.782371][ T445] ? generic_xdp_install+0x410/0x410
[ 44.782627][ T445] ? lockdep_hardirqs_on+0x7c/0x110
[ 44.782818][ T445] rtnl_dellink+0x350/0xa30
[ 44.782994][ T445] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 44.783229][ T445] ? find_held_lock+0x2b/0x80
[ 44.783503][ T445] ? __lock_acquire+0x449/0x7e0
[ 44.783671][ T445] ? find_held_lock+0x2b/0x80
[ 44.783857][ T445] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 44.784027][ T445] ? __lock_release+0x5d/0x170
[ 44.784293][ T445] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 44.784488][ T445] rtnetlink_rcv_msg+0x709/0xc00
[ 44.784655][ T445] ? rtnl_port_fill+0x850/0x850
[ 44.784846][ T445] ? __lock_acquire+0x449/0x7e0
[ 44.785125][ T445] netlink_rcv_skb+0x121/0x340
[ 44.785292][ T445] ? rtnl_port_fill+0x850/0x850
[ 44.785450][ T445] ? netlink_ack+0xdd0/0xdd0
[ 44.785611][ T445] ? netlink_deliver_tap+0x13e/0x340
[ 44.785895][ T445] ? netlink_deliver_tap+0xc3/0x340
[ 44.786063][ T445] netlink_unicast+0x4aa/0x780
[ 44.786236][ T445] ? netlink_attachskb+0x810/0x810
[ 44.786408][ T445] ? __lock_acquire+0x449/0x7e0
[ 44.786664][ T445] netlink_sendmsg+0x714/0xbd0
[ 44.786850][ T445] ? netlink_unicast+0x780/0x780
[ 44.787013][ T445] ? __import_iovec+0x230/0x3b0
[ 44.787196][ T445] ? netlink_unicast+0x780/0x780
[ 44.787450][ T445] ____sys_sendmsg+0x3dd/0x890
[ 44.787618][ T445] ? get_timestamp.constprop.0+0x380/0x380
[ 44.787867][ T445] ? __copy_msghdr+0x3c0/0x3c0
[ 44.788142][ T445] ___sys_sendmsg+0xed/0x170
[ 44.788308][ T445] ? kasan_record_aux_stack+0x8c/0xa0
[ 44.788472][ T445] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 44.788704][ T445] ? copy_msghdr_from_user+0x110/0x110
[ 44.788979][ T445] ? find_held_lock+0x2b/0x80
[ 44.789157][ T445] ? __lock_acquire+0x449/0x7e0
[ 44.789320][ T445] ? find_held_lock+0x2b/0x80
[ 44.789493][ T445] ? __virt_addr_valid+0x22a/0x450
[ 44.789785][ T445] ? __lock_release+0x5d/0x170
[ 44.789956][ T445] __sys_sendmsg+0x10b/0x1a0
[ 44.790135][ T445] ? __call_rcu_common.constprop.0+0x318/0x630
[ 44.790343][ T445] ? __sys_sendmsg_sock+0x20/0x20
[ 44.790607][ T445] ? rcu_is_watching+0x12/0xb0
[ 44.790784][ T445] do_syscall_64+0xc1/0xfd0
[ 44.790982][ T445] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 44.791307][ T445] RIP: 0033:0x7f29609101d7
[ 44.791495][ T445] 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
[ 44.792135][ T445] RSP: 002b:00007fffab7ac928 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 44.792415][ T445] RAX: ffffffffffffffda RBX: 00007fffab7ad050 RCX: 00007f29609101d7
[ 44.792696][ T445] RDX: 0000000000000000 RSI: 00007fffab7ac990 RDI: 0000000000000005
[ 44.793056][ T445] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 44.793330][ T445] R10: 00007f296080cf60 R11: 0000000000000246 R12: 0000000000000002
[ 44.793586][ T445] R13: 00000000690deefc R14: 0000000000499600 R15: 0000000000000000
[ 44.793973][ T445]
[ 44.794124][ T445] irq event stamp: 48797
[ 44.794257][ T445] hardirqs last enabled at (48797): [] irqentry_exit+0x3b/0x80
[ 44.794658][ T445] hardirqs last disabled at (48796): [] handle_softirqs+0x47f/0x610
[ 44.794978][ T445] softirqs last enabled at (48492): [] handle_softirqs+0x352/0x610
[ 44.795368][ T445] softirqs last disabled at (48353): [] irq_exit_rcu+0xab/0x100
[ 44.795665][ T445] ---[ end trace 0000000000000000 ]---
[ 44.805498][ T445] ip (445) used greatest stack depth: 24176 bytes left
[ 45.376454][ T453] br1: port 1(veth1) entered disabled state
[ 45.449484][ T454] veth1: left allmulticast mode
[ 45.449813][ T454] veth1: left promiscuous mode
[ 45.450538][ T454] br1: port 1(veth1) entered disabled state