[   31.700150][  T379] ==================================================================
[   31.700510][  T379] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[   31.700811][  T379] Read of size 1 at addr ffff8880084096ac by task ip/379
[   31.701040][  T379] 
[   31.701143][  T379] CPU: 3 UID: 0 PID: 379 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full) 
[   31.701152][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.701154][  T379] Call Trace:
[   31.701156][  T379]  <TASK>
[   31.701158][  T379]  dump_stack_lvl+0x82/0xc0
[   31.701167][  T379]  print_address_description.constprop.0+0x2c/0x3a0
[   31.701177][  T379]  ? kobject_put+0xbb/0xd0
[   31.701181][  T379]  print_report+0xb4/0x270
[   31.701184][  T379]  ? kobject_put+0xbb/0xd0
[   31.701188][  T379]  ? kasan_addr_to_slab+0x21/0x70
[   31.701191][  T379]  ? kobject_put+0xbb/0xd0
[   31.701194][  T379]  kasan_report+0xca/0x100
[   31.701198][  T379]  ? kobject_put+0xbb/0xd0
[   31.701203][  T379]  kobject_put+0xbb/0xd0
[   31.701207][  T379]  netdev_run_todo+0x5f0/0xc60
[   31.701214][  T379]  ? dev_ingress_queue_create+0x190/0x190
[   31.701217][  T379]  ? generic_xdp_install+0x410/0x410
[   31.701222][  T379]  ? vrf_dellink+0xff/0x150 [vrf]
[   31.701229][  T379]  ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[   31.701234][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.701251][  T379]  rtnl_dellink+0x350/0xa30
[   31.701256][  T379]  ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[   31.701275][  T379]  ? find_held_lock+0x2b/0x80
[   31.701280][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.701285][  T379]  ? find_held_lock+0x2b/0x80
[   31.701289][  T379]  ? rtnetlink_rcv_msg+0x6e6/0xc00
[   31.701292][  T379]  ? __lock_release+0x5d/0x170
[   31.701297][  T379]  ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[   31.701300][  T379]  rtnetlink_rcv_msg+0x709/0xc00
[   31.701304][  T379]  ? rtnl_port_fill+0x850/0x850
[   31.701307][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.701314][  T379]  netlink_rcv_skb+0x121/0x340
[   31.701318][  T379]  ? rtnl_port_fill+0x850/0x850
[   31.701322][  T379]  ? netlink_ack+0xdd0/0xdd0
[   31.701328][  T379]  ? netlink_deliver_tap+0x13e/0x340
[   31.701332][  T379]  ? netlink_deliver_tap+0xc3/0x340
[   31.701336][  T379]  netlink_unicast+0x4aa/0x780
[   31.701340][  T379]  ? netlink_attachskb+0x810/0x810
[   31.701343][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.701349][  T379]  netlink_sendmsg+0x714/0xbd0
[   31.701353][  T379]  ? netlink_unicast+0x780/0x780
[   31.701357][  T379]  ? __import_iovec+0x230/0x3b0
[   31.701369][  T379]  ? netlink_unicast+0x780/0x780
[   31.701373][  T379]  ____sys_sendmsg+0x3dd/0x890
[   31.701382][  T379]  ? get_timestamp.constprop.0+0x380/0x380
[   31.701385][  T379]  ? __copy_msghdr+0x3c0/0x3c0
[   31.701392][  T379]  ___sys_sendmsg+0xed/0x170
[   31.701395][  T379]  ? kasan_record_aux_stack+0x8c/0xa0
[   31.701398][  T379]  ? __call_rcu_common.constprop.0+0xa8/0x630
[   31.701406][  T379]  ? copy_msghdr_from_user+0x110/0x110
[   31.701411][  T379]  ? find_held_lock+0x2b/0x80
[   31.701415][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.701421][  T379]  ? find_held_lock+0x2b/0x80
[   31.701424][  T379]  ? __virt_addr_valid+0x22a/0x450
[   31.701436][  T379]  ? __lock_release+0x5d/0x170
[   31.701442][  T379]  __sys_sendmsg+0x10b/0x1a0
[   31.701445][  T379]  ? __call_rcu_common.constprop.0+0x318/0x630
[   31.701449][  T379]  ? __sys_sendmsg_sock+0x20/0x20
[   31.701457][  T379]  ? rcu_is_watching+0x12/0xb0
[   31.701460][  T379]  do_syscall_64+0xc1/0xfd0
[   31.701467][  T379]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   31.701477][  T379] RIP: 0033:0x7f58a20c81d7
[   31.701482][  T379] 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
[   31.701485][  T379] RSP: 002b:00007fff8126bf58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.701491][  T379] RAX: ffffffffffffffda RBX: 00007fff8126c680 RCX: 00007f58a20c81d7
[   31.701493][  T379] RDX: 0000000000000000 RSI: 00007fff8126bfc0 RDI: 0000000000000005
[   31.701495][  T379] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   31.701497][  T379] R10: 00007f58a1fc4f60 R11: 0000000000000246 R12: 0000000000000002
[   31.701499][  T379] R13: 00000000690dfb2d R14: 0000000000499600 R15: 0000000000000000
[   31.701505][  T379]  </TASK>
[   31.701506][  T379] 
[   31.716428][  T379] Allocated by task 320:
[   31.716583][  T379]  kasan_save_stack+0x24/0x40
[   31.716986][  T379]  kasan_save_track+0x14/0x30
[   31.717174][  T379]  __kasan_kmalloc+0x7b/0x90
[   31.717364][  T379]  __kvmalloc_node_noprof+0x2e5/0x8e0
[   31.717556][  T379]  alloc_netdev_mqs+0x7d/0x1370
[   31.717859][  T379]  rtnl_create_link+0xa9e/0xe20
[   31.718048][  T379]  rtnl_newlink_create+0x203/0x770
[   31.718234][  T379]  __rtnl_newlink+0x231/0xa30
[   31.718421][  T379]  rtnl_newlink+0x693/0xa60
[   31.718607][  T379]  rtnetlink_rcv_msg+0x709/0xc00
[   31.718807][  T379]  netlink_rcv_skb+0x121/0x340
[   31.719004][  T379]  netlink_unicast+0x4aa/0x780
[   31.719193][  T379]  netlink_sendmsg+0x714/0xbd0
[   31.719379][  T379]  ____sys_sendmsg+0x3dd/0x890
[   31.719568][  T379]  ___sys_sendmsg+0xed/0x170
[   31.719759][  T379]  __sys_sendmsg+0x10b/0x1a0
[   31.719960][  T379]  do_syscall_64+0xc1/0xfd0
[   31.720151][  T379]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   31.720388][  T379] 
[   31.720483][  T379] Freed by task 379:
[   31.720623][  T379]  kasan_save_stack+0x24/0x40
[   31.720817][  T379]  kasan_save_track+0x14/0x30
[   31.721012][  T379]  __kasan_save_free_info+0x3b/0x60
[   31.721200][  T379]  __kasan_slab_free+0x3f/0x60
[   31.721389][  T379]  kfree+0x21d/0x540
[   31.721529][  T379]  device_release+0x9c/0x210
[   31.721827][  T379]  kobject_cleanup+0xfe/0x360
[   31.722122][  T379]  netdev_run_todo+0x81f/0xc60
[   31.722311][  T379]  rtnl_dellink+0x350/0xa30
[   31.722496][  T379]  rtnetlink_rcv_msg+0x709/0xc00
[   31.722682][  T379]  netlink_rcv_skb+0x121/0x340
[   31.722874][  T379]  netlink_unicast+0x4aa/0x780
[   31.723073][  T379]  netlink_sendmsg+0x714/0xbd0
[   31.723258][  T379]  ____sys_sendmsg+0x3dd/0x890
[   31.723548][  T379]  ___sys_sendmsg+0xed/0x170
[   31.723736][  T379]  __sys_sendmsg+0x10b/0x1a0
[   31.723931][  T379]  do_syscall_64+0xc1/0xfd0
[   31.724120][  T379]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   31.724349][  T379] 
[   31.724445][  T379] The buggy address belongs to the object at ffff888008409000
[   31.724445][  T379]  which belongs to the cache kmalloc-4k of size 4096
[   31.725008][  T379] The buggy address is located 1708 bytes inside of
[   31.725008][  T379]  freed 4096-byte region [ffff888008409000, ffff88800840a000)
[   31.725463][  T379] 
[   31.725558][  T379] The buggy address belongs to the physical page:
[   31.725885][  T379] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x8408
[   31.726218][  T379] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[   31.726614][  T379] flags: 0x80000000000040(head|node=0|zone=1)
[   31.726970][  T379] page_type: f5(slab)
[   31.727117][  T379] raw: 0080000000000040 ffff888001043700 ffffea00001fe210 ffffea000027e210
[   31.727546][  T379] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[   31.727877][  T379] head: 0080000000000040 ffff888001043700 ffffea00001fe210 ffffea000027e210
[   31.728211][  T379] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[   31.728639][  T379] head: 0080000000000003 ffffea0000210201 00000000ffffffff 00000000ffffffff
[   31.729076][  T379] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[   31.729430][  T379] page dumped because: kasan: bad access detected
[   31.729665][  T379] 
[   31.729766][  T379] Memory state around the buggy address:
[   31.729960][  T379]  ffff888008409580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.730235][  T379]  ffff888008409600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.730502][  T379] >ffff888008409680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.730878][  T379]                                   ^
[   31.731068][  T379]  ffff888008409700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.731453][  T379]  ffff888008409780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.731722][  T379] ==================================================================
[   31.732047][  T379] Disabling lock debugging due to kernel taint
[   31.732317][  T379] ------------[ cut here ]------------
[   31.732487][  T379] refcount_t: underflow; use-after-free.
[   31.732700][  T379] WARNING: CPU: 3 PID: 379 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[   31.733025][  T379] Modules linked in: sch_ingress vrf veth
[   31.733222][  T379] CPU: 3 UID: 0 PID: 379 Comm: ip Tainted: G    B               6.18.0-rc4-virtme #1 PREEMPT(full) 
[   31.733575][  T379] Tainted: [B]=BAD_PAGE
[   31.733712][  T379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.733939][  T379] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[   31.734162][  T379] 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 a8 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
[   31.734879][  T379] RSP: 0018:ffffc900009171f0 EFLAGS: 00010286
[   31.735192][  T379] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   31.735454][  T379] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[   31.735712][  T379] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff51fe134
[   31.736104][  T379] R10: 0000000000000003 R11: ffffc90000916d80 R12: 0000000000000001
[   31.736392][  T379] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[   31.736763][  T379] FS:  00007f58a1efa800(0000) GS:ffff88808bf72000(0000) knlGS:0000000000000000
[   31.737097][  T379] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.737339][  T379] CR2: 00000000004e73d8 CR3: 000000000ca9d004 CR4: 0000000000772ef0
[   31.737721][  T379] PKRU: 55555554
[   31.737873][  T379] Call Trace:
[   31.738009][  T379]  <TASK>
[   31.738099][  T379]  netdev_run_todo+0x5f0/0xc60
[   31.738283][  T379]  ? dev_ingress_queue_create+0x190/0x190
[   31.738550][  T379]  ? generic_xdp_install+0x410/0x410
[   31.738725][  T379]  ? vrf_dellink+0xff/0x150 [vrf]
[   31.738903][  T379]  ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[   31.739121][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.739396][  T379]  rtnl_dellink+0x350/0xa30
[   31.739564][  T379]  ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[   31.739799][  T379]  ? find_held_lock+0x2b/0x80
[   31.740084][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.740271][  T379]  ? find_held_lock+0x2b/0x80
[   31.740458][  T379]  ? rtnetlink_rcv_msg+0x6e6/0xc00
[   31.740649][  T379]  ? __lock_release+0x5d/0x170
[   31.740831][  T379]  ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[   31.741076][  T379]  rtnetlink_rcv_msg+0x709/0xc00
[   31.741266][  T379]  ? rtnl_port_fill+0x850/0x850
[   31.741444][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.741727][  T379]  netlink_rcv_skb+0x121/0x340
[   31.741916][  T379]  ? rtnl_port_fill+0x850/0x850
[   31.742100][  T379]  ? netlink_ack+0xdd0/0xdd0
[   31.742287][  T379]  ? netlink_deliver_tap+0x13e/0x340
[   31.742560][  T379]  ? netlink_deliver_tap+0xc3/0x340
[   31.742740][  T379]  netlink_unicast+0x4aa/0x780
[   31.742927][  T379]  ? netlink_attachskb+0x810/0x810
[   31.743123][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.743315][  T379]  netlink_sendmsg+0x714/0xbd0
[   31.743508][  T379]  ? netlink_unicast+0x780/0x780
[   31.743689][  T379]  ? __import_iovec+0x230/0x3b0
[   31.743881][  T379]  ? netlink_unicast+0x780/0x780
[   31.744159][  T379]  ____sys_sendmsg+0x3dd/0x890
[   31.744350][  T379]  ? get_timestamp.constprop.0+0x380/0x380
[   31.744577][  T379]  ? __copy_msghdr+0x3c0/0x3c0
[   31.744760][  T379]  ___sys_sendmsg+0xed/0x170
[   31.745051][  T379]  ? kasan_record_aux_stack+0x8c/0xa0
[   31.745253][  T379]  ? __call_rcu_common.constprop.0+0xa8/0x630
[   31.745484][  T379]  ? copy_msghdr_from_user+0x110/0x110
[   31.745672][  T379]  ? find_held_lock+0x2b/0x80
[   31.745967][  T379]  ? __lock_acquire+0x449/0x7e0
[   31.746153][  T379]  ? find_held_lock+0x2b/0x80
[   31.746343][  T379]  ? __virt_addr_valid+0x22a/0x450
[   31.746531][  T379]  ? __lock_release+0x5d/0x170
[   31.746825][  T379]  __sys_sendmsg+0x10b/0x1a0
[   31.747011][  T379]  ? __call_rcu_common.constprop.0+0x318/0x630
[   31.747247][  T379]  ? __sys_sendmsg_sock+0x20/0x20
[   31.747534][  T379]  ? rcu_is_watching+0x12/0xb0
[   31.747718][  T379]  do_syscall_64+0xc1/0xfd0
[   31.747917][  T379]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[   31.748143][  T379] RIP: 0033:0x7f58a20c81d7
[   31.748443][  T379] 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
[   31.749098][  T379] RSP: 002b:00007fff8126bf58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.749482][  T379] RAX: ffffffffffffffda RBX: 00007fff8126c680 RCX: 00007f58a20c81d7
[   31.749772][  T379] RDX: 0000000000000000 RSI: 00007fff8126bfc0 RDI: 0000000000000005
[   31.750053][  T379] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[   31.750334][  T379] R10: 00007f58a1fc4f60 R11: 0000000000000246 R12: 0000000000000002
[   31.750604][  T379] R13: 00000000690dfb2d R14: 0000000000499600 R15: 0000000000000000
[   31.750984][  T379]  </TASK>
[   31.751130][  T379] irq event stamp: 40873
[   31.751278][  T379] hardirqs last  enabled at (40873): [<ffffffffa8393e8b>] irqentry_exit+0x3b/0x80
[   31.751689][  T379] hardirqs last disabled at (40872): [<ffffffffa625b23f>] handle_softirqs+0x47f/0x610
[   31.752009][  T379] softirqs last  enabled at (40064): [<ffffffffa625b112>] handle_softirqs+0x352/0x610
[   31.752334][  T379] softirqs last disabled at (40035): [<ffffffffa625b97b>] irq_exit_rcu+0xab/0x100
[   31.752756][  T379] ---[ end trace 0000000000000000 ]---