[ 16.960653][ T279] ip (279) used greatest stack depth: 23728 bytes left
[ 21.499768][ T309] eth1: renamed from tmp
[ 56.880666][ T596] ==================================================================
[ 56.880977][ T596] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 56.881233][ T596] Read of size 1 at addr ffff8880020446c4 by task ip/596
[ 56.881432][ T596]
[ 56.881525][ T596] CPU: 2 UID: 0 PID: 596 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 56.881530][ T596] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 56.881533][ T596] Call Trace:
[ 56.881536][ T596]
[ 56.881538][ T596] dump_stack_lvl+0x82/0xc0
[ 56.881544][ T596] print_address_description.constprop.0+0x2c/0x3a0
[ 56.881552][ T596] ? kobject_put+0xbb/0xd0
[ 56.881556][ T596] print_report+0xb4/0x270
[ 56.881559][ T596] ? kobject_put+0xbb/0xd0
[ 56.881562][ T596] ? kasan_addr_to_slab+0x21/0x70
[ 56.881566][ T596] ? kobject_put+0xbb/0xd0
[ 56.881569][ T596] kasan_report+0xca/0x100
[ 56.881573][ T596] ? kobject_put+0xbb/0xd0
[ 56.881579][ T596] kobject_put+0xbb/0xd0
[ 56.881582][ T596] netdev_run_todo+0x5f0/0xc60
[ 56.881589][ T596] ? dev_ingress_queue_create+0x190/0x190
[ 56.881593][ T596] ? generic_xdp_install+0x410/0x410
[ 56.881597][ T596] ? unregister_netdevice_many+0x20/0x20
[ 56.881607][ T596] rtnl_dellink+0x350/0xa30
[ 56.881616][ T596] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 56.881638][ T596] ? find_held_lock+0x2b/0x80
[ 56.881646][ T596] ? __lock_acquire+0x449/0x7e0
[ 56.881652][ T596] ? find_held_lock+0x2b/0x80
[ 56.881656][ T596] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 56.881659][ T596] ? __lock_release+0x5d/0x170
[ 56.881662][ T596] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 56.881666][ T596] rtnetlink_rcv_msg+0x709/0xc00
[ 56.881670][ T596] ? rtnl_port_fill+0x890/0x890
[ 56.881674][ T596] ? __lock_acquire+0x449/0x7e0
[ 56.881680][ T596] netlink_rcv_skb+0x121/0x340
[ 56.881685][ T596] ? rtnl_port_fill+0x890/0x890
[ 56.881689][ T596] ? netlink_ack+0xdf0/0xdf0
[ 56.881695][ T596] ? netlink_deliver_tap+0x13e/0x340
[ 56.881698][ T596] ? netlink_deliver_tap+0xc3/0x340
[ 56.881702][ T596] netlink_unicast+0x4aa/0x780
[ 56.881706][ T596] ? netlink_attachskb+0x810/0x810
[ 56.881710][ T596] ? __lock_acquire+0x449/0x7e0
[ 56.881714][ T596] netlink_sendmsg+0x714/0xbd0
[ 56.881719][ T596] ? netlink_unicast+0x780/0x780
[ 56.881722][ T596] ? __import_iovec+0x230/0x3b0
[ 56.881728][ T596] ? netlink_unicast+0x780/0x780
[ 56.881731][ T596] ____sys_sendmsg+0x3dd/0x890
[ 56.881735][ T596] ? get_timestamp.constprop.0+0x370/0x370
[ 56.881738][ T596] ? __copy_msghdr+0x3c0/0x3c0
[ 56.881745][ T596] ___sys_sendmsg+0xed/0x170
[ 56.881747][ T596] ? kasan_record_aux_stack+0x8c/0xa0
[ 56.881751][ T596] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 56.881756][ T596] ? copy_msghdr_from_user+0x110/0x110
[ 56.881760][ T596] ? find_held_lock+0x2b/0x80
[ 56.881765][ T596] ? __lock_acquire+0x449/0x7e0
[ 56.881769][ T596] ? find_held_lock+0x2b/0x80
[ 56.881773][ T596] ? __virt_addr_valid+0x22a/0x450
[ 56.881780][ T596] ? __lock_release+0x5d/0x170
[ 56.881785][ T596] __sys_sendmsg+0x10b/0x1a0
[ 56.881788][ T596] ? __call_rcu_common.constprop.0+0x318/0x630
[ 56.881791][ T596] ? __sys_sendmsg_sock+0x20/0x20
[ 56.881798][ T596] ? rcu_is_watching+0x12/0xb0
[ 56.881804][ T596] do_syscall_64+0xc1/0xfd0
[ 56.881810][ T596] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 56.881814][ T596] RIP: 0033:0x7f843d8dc1d7
[ 56.881820][ T596] 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
[ 56.881823][ T596] RSP: 002b:00007ffce01736d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 56.881827][ T596] RAX: ffffffffffffffda RBX: 00007ffce0173e10 RCX: 00007f843d8dc1d7
[ 56.881829][ T596] RDX: 0000000000000000 RSI: 00007ffce0173740 RDI: 0000000000000005
[ 56.881831][ T596] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 56.881833][ T596] R10: 00007f843d7d8510 R11: 0000000000000246 R12: 0000000000000002
[ 56.881835][ T596] R13: 00000000690dfbb6 R14: 0000000000499600 R15: 0000000000000000
[ 56.881841][ T596]
[ 56.881842][ T596]
[ 56.893839][ T596] Allocated by task 307:
[ 56.893976][ T596] kasan_save_stack+0x24/0x40
[ 56.894148][ T596] kasan_save_track+0x14/0x30
[ 56.894311][ T596] __kasan_kmalloc+0x7b/0x90
[ 56.894475][ T596] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 56.894650][ T596] alloc_netdev_mqs+0x7d/0x1370
[ 56.894817][ T596] rtnl_create_link+0xa9e/0xe20
[ 56.894987][ T596] rtnl_newlink_create+0x203/0x8f0
[ 56.895148][ T596] __rtnl_newlink+0x231/0xa30
[ 56.895310][ T596] rtnl_newlink+0x693/0xa60
[ 56.895472][ T596] rtnetlink_rcv_msg+0x709/0xc00
[ 56.895644][ T596] netlink_rcv_skb+0x121/0x340
[ 56.895809][ T596] netlink_unicast+0x4aa/0x780
[ 56.895972][ T596] netlink_sendmsg+0x714/0xbd0
[ 56.896135][ T596] ____sys_sendmsg+0x3dd/0x890
[ 56.896297][ T596] ___sys_sendmsg+0xed/0x170
[ 56.896462][ T596] __sys_sendmsg+0x10b/0x1a0
[ 56.896634][ T596] do_syscall_64+0xc1/0xfd0
[ 56.896799][ T596] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 56.897000][ T596]
[ 56.897082][ T596] Freed by task 596:
[ 56.897203][ T596] kasan_save_stack+0x24/0x40
[ 56.897366][ T596] kasan_save_track+0x14/0x30
[ 56.897533][ T596] __kasan_save_free_info+0x3b/0x60
[ 56.897704][ T596] __kasan_slab_free+0x3f/0x60
[ 56.897866][ T596] kfree+0x21d/0x540
[ 56.897993][ T596] device_release+0x9c/0x210
[ 56.898158][ T596] kobject_cleanup+0xfe/0x360
[ 56.898329][ T596] netdev_run_todo+0x81f/0xc60
[ 56.898492][ T596] rtnl_dellink+0x350/0xa30
[ 56.898659][ T596] rtnetlink_rcv_msg+0x709/0xc00
[ 56.898823][ T596] netlink_rcv_skb+0x121/0x340
[ 56.898990][ T596] netlink_unicast+0x4aa/0x780
[ 56.899149][ T596] netlink_sendmsg+0x714/0xbd0
[ 56.899310][ T596] ____sys_sendmsg+0x3dd/0x890
[ 56.899472][ T596] ___sys_sendmsg+0xed/0x170
[ 56.899651][ T596] __sys_sendmsg+0x10b/0x1a0
[ 56.899815][ T596] do_syscall_64+0xc1/0xfd0
[ 56.899990][ T596] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 56.900189][ T596]
[ 56.900272][ T596] The buggy address belongs to the object at ffff888002044000
[ 56.900272][ T596] which belongs to the cache kmalloc-4k of size 4096
[ 56.900665][ T596] The buggy address is located 1732 bytes inside of
[ 56.900665][ T596] freed 4096-byte region [ffff888002044000, ffff888002045000)
[ 56.901056][ T596]
[ 56.901139][ T596] The buggy address belongs to the physical page:
[ 56.901339][ T596] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2040
[ 56.901633][ T596] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 56.901885][ T596] flags: 0x80000000000040(head|node=0|zone=1)
[ 56.902093][ T596] page_type: f5(slab)
[ 56.902219][ T596] raw: 0080000000000040 ffff888001043700 ffffea00001ce010 ffffea0000096810
[ 56.902511][ T596] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 56.902805][ T596] head: 0080000000000040 ffff888001043700 ffffea00001ce010 ffffea0000096810
[ 56.903104][ T596] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 56.903390][ T596] head: 0080000000000003 ffffea0000081001 00000000ffffffff 00000000ffffffff
[ 56.903681][ T596] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 56.903968][ T596] page dumped because: kasan: bad access detected
[ 56.904169][ T596]
[ 56.904249][ T596] Memory state around the buggy address:
[ 56.904411][ T596] ffff888002044580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 56.904752][ T596] ffff888002044600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 56.904989][ T596] >ffff888002044680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 56.905318][ T596] ^
[ 56.905520][ T596] ffff888002044700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 56.905760][ T596] ffff888002044780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 56.906084][ T596] ==================================================================
[ 56.906395][ T596] Disabling lock debugging due to kernel taint
[ 56.906640][ T596] ------------[ cut here ]------------
[ 56.906913][ T596] refcount_t: underflow; use-after-free.
[ 56.907124][ T596] WARNING: CPU: 2 PID: 596 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 56.907424][ T596] Modules linked in:
[ 56.907699][ T596] CPU: 2 UID: 0 PID: 596 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 56.908045][ T596] Tainted: [B]=BAD_PAGE
[ 56.908198][ T596] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 56.908417][ T596] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 56.908659][ T596] Code: cc 38 03 80 fb 01 0f 87 29 33 d7 fe 83 e3 01 0f 85 51 ff ff ff c6 05 17 cc 38 03 01 90 48 c7 c7 40 ba 05 9a e8 62 d6 16 ff 90 <0f> 0b 90 90 e9 33 ff ff ff 48 89 df e8 c0 9d a0 ff e9 ba fe ff ff
[ 56.909376][ T596] RSP: 0018:ffffc900016e71f0 EFLAGS: 00010286
[ 56.909623][ T596] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 56.909919][ T596] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 56.910274][ T596] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff3600934
[ 56.910553][ T596] R10: 0000000000000003 R11: ffffc900016e6d80 R12: 0000000000000001
[ 56.910825][ T596] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 56.911177][ T596] FS: 00007f843d70e800(0000) GS:ffff8880d0c08000(0000) knlGS:0000000000000000
[ 56.911482][ T596] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 56.911806][ T596] CR2: 00007fa53f92e000 CR3: 000000000cfcb004 CR4: 0000000000772ef0
[ 56.912068][ T596] PKRU: 55555554
[ 56.912209][ T596] Call Trace:
[ 56.912350][ T596]
[ 56.912464][ T596] netdev_run_todo+0x5f0/0xc60
[ 56.912662][ T596] ? dev_ingress_queue_create+0x190/0x190
[ 56.912842][ T596] ? generic_xdp_install+0x410/0x410
[ 56.913021][ T596] ? unregister_netdevice_many+0x20/0x20
[ 56.913202][ T596] rtnl_dellink+0x350/0xa30
[ 56.913485][ T596] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 56.913729][ T596] ? find_held_lock+0x2b/0x80
[ 56.913912][ T596] ? __lock_acquire+0x449/0x7e0
[ 56.914184][ T596] ? find_held_lock+0x2b/0x80
[ 56.914363][ T596] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 56.914553][ T596] ? __lock_release+0x5d/0x170
[ 56.914743][ T596] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 56.915058][ T596] rtnetlink_rcv_msg+0x709/0xc00
[ 56.915244][ T596] ? rtnl_port_fill+0x890/0x890
[ 56.915420][ T596] ? __lock_acquire+0x449/0x7e0
[ 56.915616][ T596] netlink_rcv_skb+0x121/0x340
[ 56.915897][ T596] ? rtnl_port_fill+0x890/0x890
[ 56.916079][ T596] ? netlink_ack+0xdf0/0xdf0
[ 56.916260][ T596] ? netlink_deliver_tap+0x13e/0x340
[ 56.916441][ T596] ? netlink_deliver_tap+0xc3/0x340
[ 56.916736][ T596] netlink_unicast+0x4aa/0x780
[ 56.916915][ T596] ? netlink_attachskb+0x810/0x810
[ 56.917090][ T596] ? __lock_acquire+0x449/0x7e0
[ 56.917270][ T596] netlink_sendmsg+0x714/0xbd0
[ 56.917551][ T596] ? netlink_unicast+0x780/0x780
[ 56.917742][ T596] ? __import_iovec+0x230/0x3b0
[ 56.917922][ T596] ? netlink_unicast+0x780/0x780
[ 56.918100][ T596] ____sys_sendmsg+0x3dd/0x890
[ 56.918386][ T596] ? get_timestamp.constprop.0+0x370/0x370
[ 56.918614][ T596] ? __copy_msghdr+0x3c0/0x3c0
[ 56.918802][ T596] ___sys_sendmsg+0xed/0x170
[ 56.918987][ T596] ? kasan_record_aux_stack+0x8c/0xa0
[ 56.919262][ T596] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 56.919487][ T596] ? copy_msghdr_from_user+0x110/0x110
[ 56.919677][ T596] ? find_held_lock+0x2b/0x80
[ 56.919866][ T596] ? __lock_acquire+0x449/0x7e0
[ 56.920150][ T596] ? find_held_lock+0x2b/0x80
[ 56.920328][ T596] ? __virt_addr_valid+0x22a/0x450
[ 56.920519][ T596] ? __lock_release+0x5d/0x170
[ 56.920713][ T596] __sys_sendmsg+0x10b/0x1a0
[ 56.920987][ T596] ? __call_rcu_common.constprop.0+0x318/0x630
[ 56.921203][ T596] ? __sys_sendmsg_sock+0x20/0x20
[ 56.921387][ T596] ? rcu_is_watching+0x12/0xb0
[ 56.921686][ T596] do_syscall_64+0xc1/0xfd0
[ 56.921868][ T596] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 56.922082][ T596] RIP: 0033:0x7f843d8dc1d7
[ 56.922272][ T596] 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
[ 56.922968][ T596] RSP: 002b:00007ffce01736d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 56.923324][ T596] RAX: ffffffffffffffda RBX: 00007ffce0173e10 RCX: 00007f843d8dc1d7
[ 56.923592][ T596] RDX: 0000000000000000 RSI: 00007ffce0173740 RDI: 0000000000000005
[ 56.923862][ T596] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 56.924219][ T596] R10: 00007f843d7d8510 R11: 0000000000000246 R12: 0000000000000002
[ 56.924480][ T596] R13: 00000000690dfbb6 R14: 0000000000499600 R15: 0000000000000000
[ 56.924751][ T596]
[ 56.924992][ T596] irq event stamp: 49407
[ 56.925133][ T596] hardirqs last enabled at (49407): [] irqentry_exit+0x3b/0x80
[ 56.925436][ T596] hardirqs last disabled at (49406): [] handle_softirqs+0x47f/0x610
[ 56.925853][ T596] softirqs last enabled at (49310): [] handle_softirqs+0x352/0x610
[ 56.926148][ T596] softirqs last disabled at (49305): [] irq_exit_rcu+0xab/0x100
[ 56.926541][ T596] ---[ end trace 0000000000000000 ]---
[ 61.037787][ T656] eth1: renamed from tmp
[ 88.620673][ T1003] eth1: renamed from tmp
[ 115.301832][ T1349] eth1: renamed from tmp
[ 139.376145][ T1708] eth1: renamed from tmp
[ 164.146803][ T2069] eth1: renamed from tmp
[ 319.145726][ T3385] eth1: renamed from tmp
[ 331.170868][ T3585] eth2: renamed from tmp
[ 427.024675][ T4473] eth1: renamed from tmp
[ 568.410139][ T5928] eth1: renamed from tmp
[ 607.046522][ T6660] eth1: renamed from tmp
[ 621.338569][ T6879] eth1: renamed from tmp
[ 640.945971][ T7188] eth1: renamed from tmp
[ 653.486620][ T7316] eth1: renamed from tmp
[ 666.197540][ T7444] eth1: renamed from tmp
[ 678.906899][ T7572] eth1: renamed from tmp
[ 692.456595][ T7707] eth1: renamed from tmp
[ 706.203048][ T7842] eth1: renamed from tmp
[ 720.065964][ T7977] eth1: renamed from tmp
[ 733.516778][ T8112] eth1: renamed from tmp
[ 746.837885][ T8248] eth1: renamed from tmp
[ 760.240808][ T8383] eth1: renamed from tmp
[ 773.539287][ T8518] eth1: renamed from tmp
[ 786.886742][ T8653] eth1: renamed from tmp
[ 800.212091][ T8788] eth1: renamed from tmp
[ 813.809823][ T8923] eth1: renamed from tmp
[ 827.131624][ T9058] eth1: renamed from tmp
[ 840.412566][ T9193] eth1: renamed from tmp
[ 853.655653][ T9328] eth1: renamed from tmp
[ 867.098803][ T9463] eth1: renamed from tmp
[ 880.466729][ T9598] eth1: renamed from tmp
[ 893.599839][ T9733] eth1: renamed from tmp
[ 906.786268][ T9868] eth1: renamed from tmp
[ 920.297733][T10003] eth1: renamed from tmp
[ 933.495575][T10138] eth1: renamed from tmp
[ 946.716652][T10273] eth1: renamed from tmp
[ 960.259865][T10408] eth1: renamed from tmp
[ 973.493823][T10544] eth1: renamed from tmp
[ 986.894584][T10679] eth1: renamed from tmp
[ 1000.166792][T10814] eth1: renamed from tmp
[ 1013.371534][T10951] eth1: renamed from tmp
[ 1026.412901][T11086] eth1: renamed from tmp
[ 1039.795989][T11221] eth1: renamed from tmp
[ 1052.905059][T11356] eth1: renamed from tmp