[ 17.704165][ T289] 8021q: 802.1Q VLAN Support v1.8
[ 20.810936][ T317] br1: port 1(veth1) entered blocking state
[ 20.811654][ T317] br1: port 1(veth1) entered disabled state
[ 20.812257][ T317] veth1: entered allmulticast mode
[ 20.816068][ T317] veth1: entered promiscuous mode
[ 20.938564][ T46] br1: port 1(veth1) entered blocking state
[ 20.939136][ T46] br1: port 1(veth1) entered forwarding state
[ 32.064222][ T376] ==================================================================
[ 32.064554][ T376] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 32.064811][ T376] Read of size 1 at addr ffff8880087196ac by task ip/376
[ 32.065024][ T376]
[ 32.065113][ T376] CPU: 1 UID: 0 PID: 376 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 32.065118][ T376] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 32.065121][ T376] Call Trace:
[ 32.065123][ T376]
[ 32.065125][ T376] dump_stack_lvl+0x82/0xc0
[ 32.065131][ T376] print_address_description.constprop.0+0x2c/0x3a0
[ 32.065139][ T376] ? kobject_put+0xbb/0xd0
[ 32.065143][ T376] print_report+0xb4/0x270
[ 32.065146][ T376] ? kobject_put+0xbb/0xd0
[ 32.065149][ T376] ? kasan_addr_to_slab+0x21/0x70
[ 32.065152][ T376] ? kobject_put+0xbb/0xd0
[ 32.065156][ T376] kasan_report+0xca/0x100
[ 32.065159][ T376] ? kobject_put+0xbb/0xd0
[ 32.065164][ T376] kobject_put+0xbb/0xd0
[ 32.065168][ T376] netdev_run_todo+0x5f0/0xc60
[ 32.065173][ T376] ? dev_ingress_queue_create+0x190/0x190
[ 32.065176][ T376] ? generic_xdp_install+0x410/0x410
[ 32.065180][ T376] ? lockdep_hardirqs_on+0x7c/0x110
[ 32.065188][ T376] rtnl_dellink+0x350/0xa30
[ 32.065193][ T376] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 32.065212][ T376] ? find_held_lock+0x2b/0x80
[ 32.065220][ T376] ? __lock_acquire+0x449/0x7e0
[ 32.065227][ T376] ? find_held_lock+0x2b/0x80
[ 32.065231][ T376] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 32.065233][ T376] ? __lock_release+0x5d/0x170
[ 32.065239][ T376] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 32.065242][ T376] rtnetlink_rcv_msg+0x709/0xc00
[ 32.065246][ T376] ? rtnl_port_fill+0x850/0x850
[ 32.065249][ T376] ? __lock_acquire+0x449/0x7e0
[ 32.065256][ T376] netlink_rcv_skb+0x121/0x340
[ 32.065261][ T376] ? rtnl_port_fill+0x850/0x850
[ 32.065265][ T376] ? netlink_ack+0xdd0/0xdd0
[ 32.065271][ T376] ? netlink_deliver_tap+0x13e/0x340
[ 32.065274][ T376] ? netlink_deliver_tap+0xc3/0x340
[ 32.065278][ T376] netlink_unicast+0x4aa/0x780
[ 32.065282][ T376] ? netlink_attachskb+0x810/0x810
[ 32.065286][ T376] ? __lock_acquire+0x449/0x7e0
[ 32.065291][ T376] netlink_sendmsg+0x714/0xbd0
[ 32.065296][ T376] ? netlink_unicast+0x780/0x780
[ 32.065299][ T376] ? __import_iovec+0x230/0x3b0
[ 32.065307][ T376] ? netlink_unicast+0x780/0x780
[ 32.065310][ T376] ____sys_sendmsg+0x3dd/0x890
[ 32.065318][ T376] ? get_timestamp.constprop.0+0x380/0x380
[ 32.065321][ T376] ? __copy_msghdr+0x3c0/0x3c0
[ 32.065329][ T376] ___sys_sendmsg+0xed/0x170
[ 32.065332][ T376] ? kasan_record_aux_stack+0x8c/0xa0
[ 32.065335][ T376] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 32.065341][ T376] ? copy_msghdr_from_user+0x110/0x110
[ 32.065346][ T376] ? find_held_lock+0x2b/0x80
[ 32.065351][ T376] ? __lock_acquire+0x449/0x7e0
[ 32.065356][ T376] ? find_held_lock+0x2b/0x80
[ 32.065360][ T376] ? __virt_addr_valid+0x22a/0x450
[ 32.065364][ T376] ? __lock_release+0x5d/0x170
[ 32.065370][ T376] __sys_sendmsg+0x10b/0x1a0
[ 32.065374][ T376] ? __call_rcu_common.constprop.0+0x318/0x630
[ 32.065377][ T376] ? __sys_sendmsg_sock+0x20/0x20
[ 32.065385][ T376] ? rcu_is_watching+0x12/0xb0
[ 32.065389][ T376] do_syscall_64+0xc1/0xfd0
[ 32.065393][ T376] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 32.065397][ T376] RIP: 0033:0x7fa529d021d7
[ 32.065403][ T376] 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
[ 32.065406][ T376] RSP: 002b:00007ffc7f7fd568 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 32.065410][ T376] RAX: ffffffffffffffda RBX: 00007ffc7f7fdc90 RCX: 00007fa529d021d7
[ 32.065413][ T376] RDX: 0000000000000000 RSI: 00007ffc7f7fd5d0 RDI: 0000000000000005
[ 32.065414][ T376] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 32.065416][ T376] R10: 00007fa529bfef60 R11: 0000000000000246 R12: 0000000000000002
[ 32.065417][ T376] R13: 00000000690dfa9c R14: 0000000000499600 R15: 0000000000000000
[ 32.065423][ T376]
[ 32.065425][ T376]
[ 32.077378][ T376] Allocated by task 369:
[ 32.077510][ T376] kasan_save_stack+0x24/0x40
[ 32.077681][ T376] kasan_save_track+0x14/0x30
[ 32.077842][ T376] __kasan_kmalloc+0x7b/0x90
[ 32.078009][ T376] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 32.078191][ T376] alloc_netdev_mqs+0x7d/0x1370
[ 32.078364][ T376] rtnl_create_link+0xa9e/0xe20
[ 32.078532][ T376] rtnl_newlink_create+0x203/0x770
[ 32.078702][ T376] __rtnl_newlink+0x231/0xa30
[ 32.078865][ T376] rtnl_newlink+0x693/0xa60
[ 32.079036][ T376] rtnetlink_rcv_msg+0x709/0xc00
[ 32.079200][ T376] netlink_rcv_skb+0x121/0x340
[ 32.079366][ T376] netlink_unicast+0x4aa/0x780
[ 32.079529][ T376] netlink_sendmsg+0x714/0xbd0
[ 32.079691][ T376] ____sys_sendmsg+0x3dd/0x890
[ 32.079853][ T376] ___sys_sendmsg+0xed/0x170
[ 32.080021][ T376] __sys_sendmsg+0x10b/0x1a0
[ 32.080187][ T376] do_syscall_64+0xc1/0xfd0
[ 32.080355][ T376] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 32.080561][ T376]
[ 32.080645][ T376] Freed by task 376:
[ 32.080769][ T376] kasan_save_stack+0x24/0x40
[ 32.080941][ T376] kasan_save_track+0x14/0x30
[ 32.081105][ T376] __kasan_save_free_info+0x3b/0x60
[ 32.081281][ T376] __kasan_slab_free+0x3f/0x60
[ 32.081464][ T376] kfree+0x21d/0x540
[ 32.081591][ T376] device_release+0x9c/0x210
[ 32.081761][ T376] kobject_cleanup+0xfe/0x360
[ 32.081932][ T376] netdev_run_todo+0x81f/0xc60
[ 32.082098][ T376] rtnl_dellink+0x350/0xa30
[ 32.082260][ T376] rtnetlink_rcv_msg+0x709/0xc00
[ 32.082421][ T376] netlink_rcv_skb+0x121/0x340
[ 32.082618][ T376] netlink_unicast+0x4aa/0x780
[ 32.082784][ T376] netlink_sendmsg+0x714/0xbd0
[ 32.082949][ T376] ____sys_sendmsg+0x3dd/0x890
[ 32.083118][ T376] ___sys_sendmsg+0xed/0x170
[ 32.083282][ T376] __sys_sendmsg+0x10b/0x1a0
[ 32.083467][ T376] do_syscall_64+0xc1/0xfd0
[ 32.083638][ T376] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 32.083841][ T376]
[ 32.083925][ T376] The buggy address belongs to the object at ffff888008719000
[ 32.083925][ T376] which belongs to the cache kmalloc-4k of size 4096
[ 32.084344][ T376] The buggy address is located 1708 bytes inside of
[ 32.084344][ T376] freed 4096-byte region [ffff888008719000, ffff88800871a000)
[ 32.084753][ T376]
[ 32.084836][ T376] The buggy address belongs to the physical page:
[ 32.085044][ T376] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8718
[ 32.085427][ T376] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 32.085687][ T376] flags: 0x80000000000040(head|node=0|zone=1)
[ 32.085898][ T376] page_type: f5(slab)
[ 32.086029][ T376] raw: 0080000000000040 ffff888001043700 ffffea000021f610 ffffea0000078c10
[ 32.086374][ T376] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 32.086682][ T376] head: 0080000000000040 ffff888001043700 ffffea000021f610 ffffea0000078c10
[ 32.086976][ T376] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 32.087269][ T376] head: 0080000000000003 ffffea000021c601 00000000ffffffff 00000000ffffffff
[ 32.087665][ T376] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 32.087958][ T376] page dumped because: kasan: bad access detected
[ 32.088163][ T376]
[ 32.088245][ T376] Memory state around the buggy address:
[ 32.088495][ T376] ffff888008719580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 32.088740][ T376] ffff888008719600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 32.088986][ T376] >ffff888008719680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 32.089318][ T376] ^
[ 32.089480][ T376] ffff888008719700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 32.089715][ T376] ffff888008719780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 32.090043][ T376] ==================================================================
[ 32.091223][ T376] Disabling lock debugging due to kernel taint
[ 32.091434][ T376] ------------[ cut here ]------------
[ 32.091587][ T376] refcount_t: underflow; use-after-free.
[ 32.091774][ T376] WARNING: CPU: 1 PID: 376 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 32.092057][ T376] Modules linked in: bridge stp llc 8021q vrf veth
[ 32.092311][ T376] CPU: 1 UID: 0 PID: 376 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 32.092664][ T376] Tainted: [B]=BAD_PAGE
[ 32.092797][ T376] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 32.093016][ T376] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 32.093253][ T376] 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 9c 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
[ 32.093893][ T376] RSP: 0018:ffffc900005171f0 EFLAGS: 00010286
[ 32.094131][ T376] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 32.094403][ T376] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 32.094678][ T376] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff393e134
[ 32.094954][ T376] R10: 0000000000000003 R11: ffffc90000516d80 R12: 0000000000000001
[ 32.095840][ T376] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 32.096200][ T376] FS: 00007fa529b34800(0000) GS:ffff888098472000(0000) knlGS:0000000000000000
[ 32.096525][ T376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 32.096749][ T376] CR2: 00000000004e5848 CR3: 000000001134e006 CR4: 0000000000772ef0
[ 32.097014][ T376] PKRU: 55555554
[ 32.097218][ T376] Call Trace:
[ 32.097355][ T376]
[ 32.097446][ T376] netdev_run_todo+0x5f0/0xc60
[ 32.097623][ T376] ? dev_ingress_queue_create+0x190/0x190
[ 32.097789][ T376] ? generic_xdp_install+0x410/0x410
[ 32.097948][ T376] ? lockdep_hardirqs_on+0x7c/0x110
[ 32.098179][ T376] rtnl_dellink+0x350/0xa30
[ 32.098342][ T376] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 32.098579][ T376] ? find_held_lock+0x2b/0x80
[ 32.098743][ T376] ? __lock_acquire+0x449/0x7e0
[ 32.098906][ T376] ? find_held_lock+0x2b/0x80
[ 32.099079][ T376] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 32.099306][ T376] ? __lock_release+0x5d/0x170
[ 32.099511][ T376] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 32.099732][ T376] rtnetlink_rcv_msg+0x709/0xc00
[ 32.099908][ T376] ? rtnl_port_fill+0x850/0x850
[ 32.100082][ T376] ? __lock_acquire+0x449/0x7e0
[ 32.100321][ T376] netlink_rcv_skb+0x121/0x340
[ 32.100485][ T376] ? rtnl_port_fill+0x850/0x850
[ 32.100650][ T376] ? netlink_ack+0xdd0/0xdd0
[ 32.100813][ T376] ? netlink_deliver_tap+0x13e/0x340
[ 32.100971][ T376] ? netlink_deliver_tap+0xc3/0x340
[ 32.101201][ T376] netlink_unicast+0x4aa/0x780
[ 32.101362][ T376] ? netlink_attachskb+0x810/0x810
[ 32.101523][ T376] ? __lock_acquire+0x449/0x7e0
[ 32.101685][ T376] netlink_sendmsg+0x714/0xbd0
[ 32.101853][ T376] ? netlink_unicast+0x780/0x780
[ 32.102012][ T376] ? __import_iovec+0x230/0x3b0
[ 32.102240][ T376] ? netlink_unicast+0x780/0x780
[ 32.102402][ T376] ____sys_sendmsg+0x3dd/0x890
[ 32.102564][ T376] ? get_timestamp.constprop.0+0x380/0x380
[ 32.102762][ T376] ? __copy_msghdr+0x3c0/0x3c0
[ 32.102927][ T376] ___sys_sendmsg+0xed/0x170
[ 32.103089][ T376] ? kasan_record_aux_stack+0x8c/0xa0
[ 32.103330][ T376] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 32.103536][ T376] ? copy_msghdr_from_user+0x110/0x110
[ 32.103699][ T376] ? find_held_lock+0x2b/0x80
[ 32.103860][ T376] ? __lock_acquire+0x449/0x7e0
[ 32.104023][ T376] ? find_held_lock+0x2b/0x80
[ 32.104253][ T376] ? __virt_addr_valid+0x22a/0x450
[ 32.104414][ T376] ? __lock_release+0x5d/0x170
[ 32.104578][ T376] __sys_sendmsg+0x10b/0x1a0
[ 32.104737][ T376] ? __call_rcu_common.constprop.0+0x318/0x630
[ 32.104939][ T376] ? __sys_sendmsg_sock+0x20/0x20
[ 32.105176][ T376] ? rcu_is_watching+0x12/0xb0
[ 32.105339][ T376] do_syscall_64+0xc1/0xfd0
[ 32.105504][ T376] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 32.105701][ T376] RIP: 0033:0x7fa529d021d7
[ 32.105875][ T376] 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
[ 32.106532][ T376] RSP: 002b:00007ffc7f7fd568 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 32.106781][ T376] RAX: ffffffffffffffda RBX: 00007ffc7f7fdc90 RCX: 00007fa529d021d7
[ 32.107029][ T376] RDX: 0000000000000000 RSI: 00007ffc7f7fd5d0 RDI: 0000000000000005
[ 32.107339][ T376] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 32.107581][ T376] R10: 00007fa529bfef60 R11: 0000000000000246 R12: 0000000000000002
[ 32.107819][ T376] R13: 00000000690dfa9c R14: 0000000000499600 R15: 0000000000000000
[ 32.108063][ T376]
[ 32.108258][ T376] irq event stamp: 46477
[ 32.108384][ T376] hardirqs last enabled at (46477): [] finish_task_switch.isra.0+0x245/0x960
[ 32.108705][ T376] hardirqs last disabled at (46476): [] __schedule+0x94a/0x1b10
[ 32.109011][ T376] softirqs last enabled at (46138): [] handle_softirqs+0x352/0x610
[ 32.109456][ T376] softirqs last disabled at (46129): [] irq_exit_rcu+0xab/0x100
[ 32.109745][ T376] ---[ end trace 0000000000000000 ]---
[ 35.171694][ T416] br1: port 1(veth1) entered disabled state
[ 35.237046][ T418] veth1: left allmulticast mode
[ 35.237351][ T418] veth1: left promiscuous mode
[ 35.237718][ T418] br1: port 1(veth1) entered disabled state