[ 18.359730][ T288] 8021q: 802.1Q VLAN Support v1.8
[ 21.750445][ T319] br1: port 1(veth1) entered blocking state
[ 21.752067][ T319] br1: port 1(veth1) entered disabled state
[ 21.753040][ T319] veth1: entered allmulticast mode
[ 21.757385][ T319] veth1: entered promiscuous mode
[ 21.918634][ T320] br1: port 2(veth2) entered blocking state
[ 21.919377][ T320] br1: port 2(veth2) entered disabled state
[ 21.920130][ T320] veth2: entered allmulticast mode
[ 21.925931][ T320] veth2: entered promiscuous mode
[ 22.076770][ T46] br1: port 1(veth1) entered blocking state
[ 22.077632][ T46] br1: port 1(veth1) entered forwarding state
[ 22.206338][ T73] br1: port 2(veth2) entered blocking state
[ 22.206856][ T73] br1: port 2(veth2) entered forwarding state
[ 32.897746][ T382] veth2: left allmulticast mode
[ 32.898176][ T382] veth2: left promiscuous mode
[ 32.898729][ T382] br1: port 2(veth2) entered disabled state
[ 33.018078][ T383] veth1: left allmulticast mode
[ 33.018474][ T383] veth1: left promiscuous mode
[ 33.019002][ T383] br1: port 1(veth1) entered disabled state
[ 35.262379][ T385] br1: port 1(veth1) entered blocking state
[ 35.262887][ T385] br1: port 1(veth1) entered disabled state
[ 35.263334][ T385] veth1: entered allmulticast mode
[ 35.267150][ T385] veth1: entered promiscuous mode
[ 35.268119][ T385] br1: port 1(veth1) entered blocking state
[ 35.268557][ T385] br1: port 1(veth1) entered forwarding state
[ 35.404107][ T386] br1: port 2(veth2) entered blocking state
[ 35.404539][ T386] br1: port 2(veth2) entered disabled state
[ 35.404973][ T386] veth2: entered allmulticast mode
[ 35.408300][ T386] veth2: entered promiscuous mode
[ 35.409556][ T386] br1: port 2(veth2) entered blocking state
[ 35.409974][ T386] br1: port 2(veth2) entered forwarding state
[ 38.908168][ T423] ==================================================================
[ 38.908454][ T423] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 38.908729][ T423] Read of size 1 at addr ffff888008dac6ac by task ip/423
[ 38.908932][ T423]
[ 38.909030][ T423] CPU: 1 UID: 0 PID: 423 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 38.909035][ T423] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 38.909038][ T423] Call Trace:
[ 38.909040][ T423]
[ 38.909042][ T423] dump_stack_lvl+0x82/0xc0
[ 38.909048][ T423] print_address_description.constprop.0+0x2c/0x3a0
[ 38.909059][ T423] ? kobject_put+0xbb/0xd0
[ 38.909063][ T423] print_report+0xb4/0x270
[ 38.909067][ T423] ? kobject_put+0xbb/0xd0
[ 38.909073][ T423] ? kasan_addr_to_slab+0x21/0x70
[ 38.909077][ T423] ? kobject_put+0xbb/0xd0
[ 38.909085][ T423] kasan_report+0xca/0x100
[ 38.909089][ T423] ? kobject_put+0xbb/0xd0
[ 38.909094][ T423] kobject_put+0xbb/0xd0
[ 38.909098][ T423] netdev_run_todo+0x5f0/0xc60
[ 38.909106][ T423] ? dev_ingress_queue_create+0x190/0x190
[ 38.909108][ T423] ? vlan_vid_del+0x30c/0x5e0
[ 38.909113][ T423] ? generic_xdp_install+0x410/0x410
[ 38.909117][ T423] ? vlan_vid_del+0x30c/0x5e0
[ 38.909121][ T423] rtnl_dellink+0x350/0xa30
[ 38.909125][ T423] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 38.909145][ T423] ? find_held_lock+0x2b/0x80
[ 38.909158][ T423] ? __lock_acquire+0x449/0x7e0
[ 38.909164][ T423] ? find_held_lock+0x2b/0x80
[ 38.909168][ T423] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 38.909170][ T423] ? __lock_release+0x5d/0x170
[ 38.909175][ T423] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 38.909178][ T423] rtnetlink_rcv_msg+0x709/0xc00
[ 38.909181][ T423] ? rtnl_port_fill+0x850/0x850
[ 38.909184][ T423] ? __lock_acquire+0x449/0x7e0
[ 38.909191][ T423] netlink_rcv_skb+0x121/0x340
[ 38.909196][ T423] ? rtnl_port_fill+0x850/0x850
[ 38.909199][ T423] ? netlink_ack+0xdd0/0xdd0
[ 38.909206][ T423] ? netlink_deliver_tap+0x13e/0x340
[ 38.909209][ T423] ? netlink_deliver_tap+0xc3/0x340
[ 38.909213][ T423] netlink_unicast+0x4aa/0x780
[ 38.909217][ T423] ? netlink_attachskb+0x810/0x810
[ 38.909221][ T423] ? __lock_acquire+0x449/0x7e0
[ 38.909226][ T423] netlink_sendmsg+0x714/0xbd0
[ 38.909231][ T423] ? netlink_unicast+0x780/0x780
[ 38.909234][ T423] ? __import_iovec+0x230/0x3b0
[ 38.909242][ T423] ? netlink_unicast+0x780/0x780
[ 38.909245][ T423] ____sys_sendmsg+0x3dd/0x890
[ 38.909251][ T423] ? get_timestamp.constprop.0+0x380/0x380
[ 38.909254][ T423] ? __copy_msghdr+0x3c0/0x3c0
[ 38.909261][ T423] ___sys_sendmsg+0xed/0x170
[ 38.909265][ T423] ? kasan_record_aux_stack+0x8c/0xa0
[ 38.909268][ T423] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 38.909280][ T423] ? copy_msghdr_from_user+0x110/0x110
[ 38.909285][ T423] ? find_held_lock+0x2b/0x80
[ 38.909289][ T423] ? __lock_acquire+0x449/0x7e0
[ 38.909295][ T423] ? find_held_lock+0x2b/0x80
[ 38.909298][ T423] ? __virt_addr_valid+0x22a/0x450
[ 38.909308][ T423] ? __lock_release+0x5d/0x170
[ 38.909314][ T423] __sys_sendmsg+0x10b/0x1a0
[ 38.909318][ T423] ? __call_rcu_common.constprop.0+0x318/0x630
[ 38.909321][ T423] ? __sys_sendmsg_sock+0x20/0x20
[ 38.909331][ T423] ? rcu_is_watching+0x12/0xb0
[ 38.909335][ T423] do_syscall_64+0xc1/0xfd0
[ 38.909340][ T423] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 38.909348][ T423] RIP: 0033:0x7f37c16f31d7
[ 38.909353][ T423] 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
[ 38.909356][ T423] RSP: 002b:00007ffda7d73548 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 38.909360][ T423] RAX: ffffffffffffffda RBX: 00007ffda7d73c70 RCX: 00007f37c16f31d7
[ 38.909362][ T423] RDX: 0000000000000000 RSI: 00007ffda7d735b0 RDI: 0000000000000005
[ 38.909364][ T423] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 38.909366][ T423] R10: 00007f37c15eff60 R11: 0000000000000246 R12: 0000000000000002
[ 38.909368][ T423] R13: 00000000690dfa71 R14: 0000000000499600 R15: 0000000000000000
[ 38.909374][ T423]
[ 38.909375][ T423]
[ 38.921984][ T423] Allocated by task 332:
[ 38.922124][ T423] kasan_save_stack+0x24/0x40
[ 38.922307][ T423] kasan_save_track+0x14/0x30
[ 38.922470][ T423] __kasan_kmalloc+0x7b/0x90
[ 38.922634][ T423] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 38.922820][ T423] alloc_netdev_mqs+0x7d/0x1370
[ 38.922999][ T423] rtnl_create_link+0xa9e/0xe20
[ 38.923171][ T423] rtnl_newlink_create+0x203/0x770
[ 38.923335][ T423] __rtnl_newlink+0x231/0xa30
[ 38.923499][ T423] rtnl_newlink+0x693/0xa60
[ 38.923675][ T423] rtnetlink_rcv_msg+0x709/0xc00
[ 38.923840][ T423] netlink_rcv_skb+0x121/0x340
[ 38.924015][ T423] netlink_unicast+0x4aa/0x780
[ 38.924199][ T423] netlink_sendmsg+0x714/0xbd0
[ 38.924368][ T423] ____sys_sendmsg+0x3dd/0x890
[ 38.924534][ T423] ___sys_sendmsg+0xed/0x170
[ 38.924708][ T423] __sys_sendmsg+0x10b/0x1a0
[ 38.924875][ T423] do_syscall_64+0xc1/0xfd0
[ 38.925052][ T423] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 38.925267][ T423]
[ 38.925354][ T423] Freed by task 423:
[ 38.925481][ T423] kasan_save_stack+0x24/0x40
[ 38.925664][ T423] kasan_save_track+0x14/0x30
[ 38.925834][ T423] __kasan_save_free_info+0x3b/0x60
[ 38.926010][ T423] __kasan_slab_free+0x3f/0x60
[ 38.926190][ T423] kfree+0x21d/0x540
[ 38.926315][ T423] device_release+0x9c/0x210
[ 38.926486][ T423] kobject_cleanup+0xfe/0x360
[ 38.926657][ T423] netdev_run_todo+0x81f/0xc60
[ 38.926826][ T423] rtnl_dellink+0x350/0xa30
[ 38.927009][ T423] rtnetlink_rcv_msg+0x709/0xc00
[ 38.927186][ T423] netlink_rcv_skb+0x121/0x340
[ 38.927352][ T423] netlink_unicast+0x4aa/0x780
[ 38.927518][ T423] netlink_sendmsg+0x714/0xbd0
[ 38.927697][ T423] ____sys_sendmsg+0x3dd/0x890
[ 38.927869][ T423] ___sys_sendmsg+0xed/0x170
[ 38.928044][ T423] __sys_sendmsg+0x10b/0x1a0
[ 38.928221][ T423] do_syscall_64+0xc1/0xfd0
[ 38.928393][ T423] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 38.928598][ T423]
[ 38.928692][ T423] The buggy address belongs to the object at ffff888008dac000
[ 38.928692][ T423] which belongs to the cache kmalloc-4k of size 4096
[ 38.929122][ T423] The buggy address is located 1708 bytes inside of
[ 38.929122][ T423] freed 4096-byte region [ffff888008dac000, ffff888008dad000)
[ 38.929525][ T423]
[ 38.929613][ T423] The buggy address belongs to the physical page:
[ 38.929829][ T423] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8da8
[ 38.930156][ T423] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 38.930414][ T423] flags: 0x80000000000040(head|node=0|zone=1)
[ 38.930636][ T423] page_type: f5(slab)
[ 38.930781][ T423] raw: 0080000000000040 ffff888001043700 ffffea0000418e10 ffffea00002e5010
[ 38.931113][ T423] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 38.931407][ T423] head: 0080000000000040 ffff888001043700 ffffea0000418e10 ffffea00002e5010
[ 38.931710][ T423] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 38.932017][ T423] head: 0080000000000003 ffffea0000236a01 00000000ffffffff 00000000ffffffff
[ 38.932329][ T423] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 38.932621][ T423] page dumped because: kasan: bad access detected
[ 38.932838][ T423]
[ 38.932921][ T423] Memory state around the buggy address:
[ 38.933104][ T423] ffff888008dac580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 38.933358][ T423] ffff888008dac600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 38.933592][ T423] >ffff888008dac680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 38.933851][ T423] ^
[ 38.934026][ T423] ffff888008dac700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 38.934283][ T423] ffff888008dac780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 38.934612][ T423] ==================================================================
[ 38.935661][ T423] Disabling lock debugging due to kernel taint
[ 38.936081][ T423] ------------[ cut here ]------------
[ 38.936289][ T423] refcount_t: underflow; use-after-free.
[ 38.936505][ T423] WARNING: CPU: 2 PID: 423 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 38.936819][ T423] Modules linked in: bridge stp llc 8021q vrf veth
[ 38.937088][ T423] CPU: 2 UID: 0 PID: 423 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 38.937445][ T423] Tainted: [B]=BAD_PAGE
[ 38.937588][ T423] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 38.937838][ T423] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 38.938099][ T423] 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 65 93 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
[ 38.938700][ T423] RSP: 0018:ffffc90000ba71f0 EFLAGS: 00010286
[ 38.938947][ T423] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 38.939222][ T423] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 38.939490][ T423] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff27fe134
[ 38.939759][ T423] R10: 0000000000000003 R11: ffffc90000ba6d80 R12: 0000000000000001
[ 38.940047][ T423] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 38.940495][ T423] FS: 00007f37c1525800(0000) GS:ffff88809b2f2000(0000) knlGS:0000000000000000
[ 38.940950][ T423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 38.941298][ T423] CR2: 00007f25ca7c80a0 CR3: 0000000004b89005 CR4: 0000000000772ef0
[ 38.941681][ T423] PKRU: 55555554
[ 38.941923][ T423] Call Trace:
[ 38.942155][ T423]
[ 38.942325][ T423] netdev_run_todo+0x5f0/0xc60
[ 38.942618][ T423] ? dev_ingress_queue_create+0x190/0x190
[ 38.942911][ T423] ? vlan_vid_del+0x30c/0x5e0
[ 38.943194][ T423] ? generic_xdp_install+0x410/0x410
[ 38.943514][ T423] ? vlan_vid_del+0x30c/0x5e0
[ 38.943802][ T423] rtnl_dellink+0x350/0xa30
[ 38.944115][ T423] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 38.944648][ T423] ? find_held_lock+0x2b/0x80
[ 38.944961][ T423] ? __lock_acquire+0x449/0x7e0
[ 38.945263][ T423] ? find_held_lock+0x2b/0x80
[ 38.945561][ T423] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 38.945889][ T423] ? __lock_release+0x5d/0x170
[ 38.946183][ T423] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 38.946703][ T423] rtnetlink_rcv_msg+0x709/0xc00
[ 38.947024][ T423] ? rtnl_port_fill+0x850/0x850
[ 38.947322][ T423] ? __lock_acquire+0x449/0x7e0
[ 38.947626][ T423] netlink_rcv_skb+0x121/0x340
[ 38.948113][ T423] ? rtnl_port_fill+0x850/0x850
[ 38.948397][ T423] ? netlink_ack+0xdd0/0xdd0
[ 38.948670][ T423] ? netlink_deliver_tap+0x13e/0x340
[ 38.948970][ T423] ? netlink_deliver_tap+0xc3/0x340
[ 38.949444][ T423] netlink_unicast+0x4aa/0x780
[ 38.949731][ T423] ? netlink_attachskb+0x810/0x810
[ 38.950030][ T423] ? __lock_acquire+0x449/0x7e0
[ 38.950322][ T423] netlink_sendmsg+0x714/0xbd0
[ 38.950819][ T423] ? netlink_unicast+0x780/0x780
[ 38.951132][ T423] ? __import_iovec+0x230/0x3b0
[ 38.951424][ T423] ? netlink_unicast+0x780/0x780
[ 38.951713][ T423] ____sys_sendmsg+0x3dd/0x890
[ 38.952135][ T423] ? get_timestamp.constprop.0+0x380/0x380
[ 38.952605][ T423] ? __copy_msghdr+0x3c0/0x3c0
[ 38.953018][ T423] ___sys_sendmsg+0xed/0x170
[ 38.953440][ T423] ? kasan_record_aux_stack+0x8c/0xa0
[ 38.953868][ T423] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 38.954329][ T423] ? copy_msghdr_from_user+0x110/0x110
[ 38.954626][ T423] ? find_held_lock+0x2b/0x80
[ 38.954909][ T423] ? __lock_acquire+0x449/0x7e0
[ 38.955221][ T423] ? find_held_lock+0x2b/0x80
[ 38.955511][ T423] ? __virt_addr_valid+0x22a/0x450
[ 38.955798][ T423] ? __lock_release+0x5d/0x170
[ 38.956102][ T423] __sys_sendmsg+0x10b/0x1a0
[ 38.956401][ T423] ? __call_rcu_common.constprop.0+0x318/0x630
[ 38.956747][ T423] ? __sys_sendmsg_sock+0x20/0x20
[ 38.957076][ T423] ? rcu_is_watching+0x12/0xb0
[ 38.957378][ T423] do_syscall_64+0xc1/0xfd0
[ 38.957679][ T423] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 38.958037][ T423] RIP: 0033:0x7f37c16f31d7
[ 38.958344][ T423] 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
[ 38.959318][ T423] RSP: 002b:00007ffda7d73548 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 38.959749][ T423] RAX: ffffffffffffffda RBX: 00007ffda7d73c70 RCX: 00007f37c16f31d7
[ 38.960206][ T423] RDX: 0000000000000000 RSI: 00007ffda7d735b0 RDI: 0000000000000005
[ 38.960638][ T423] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 38.961085][ T423] R10: 00007f37c15eff60 R11: 0000000000000246 R12: 0000000000000002
[ 38.961522][ T423] R13: 00000000690dfa71 R14: 0000000000499600 R15: 0000000000000000
[ 38.961979][ T423]
[ 38.962204][ T423] irq event stamp: 40685
[ 38.962426][ T423] hardirqs last enabled at (40685): [] finish_task_switch.isra.0+0x245/0x960
[ 38.962959][ T423] hardirqs last disabled at (40684): [] __schedule+0x94a/0x1b10
[ 38.963439][ T423] softirqs last enabled at (40516): [] handle_softirqs+0x352/0x610
[ 38.963908][ T423] softirqs last disabled at (40509): [] irq_exit_rcu+0xab/0x100
[ 38.964365][ T423] ---[ end trace 0000000000000000 ]---
[ 39.392112][ T431] br1: port 2(veth2) entered disabled state
[ 39.392625][ T431] veth2: left allmulticast mode
[ 39.392890][ T431] veth2: left promiscuous mode
[ 39.393245][ T431] br1: port 2(veth2) entered disabled state
[ 39.462175][ T432] br1: port 1(veth1) entered disabled state
[ 39.462745][ T432] veth1: left allmulticast mode
[ 39.463035][ T432] veth1: left promiscuous mode
[ 39.463490][ T432] br1: port 1(veth1) entered disabled state