[ 16.029221][ T251] ip (251) used greatest stack depth: 24448 bytes left
[ 25.724525][ T308] GACT probability NOT on
[ 35.852154][ T435] ==================================================================
[ 35.852586][ T435] BUG: KASAN: slab-use-after-free in kobject_put+0xbb/0xd0
[ 35.853008][ T435] Read of size 1 at addr ffff8880058f96ac by task ip/435
[ 35.853331][ T435]
[ 35.853473][ T435] CPU: 2 UID: 0 PID: 435 Comm: ip Not tainted 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 35.853481][ T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.853494][ T435] Call Trace:
[ 35.853497][ T435]
[ 35.853500][ T435] dump_stack_lvl+0x82/0xc0
[ 35.853512][ T435] print_address_description.constprop.0+0x2c/0x3a0
[ 35.853522][ T435] ? kobject_put+0xbb/0xd0
[ 35.853529][ T435] print_report+0xb4/0x270
[ 35.853533][ T435] ? kobject_put+0xbb/0xd0
[ 35.853538][ T435] ? kasan_addr_to_slab+0x21/0x70
[ 35.853545][ T435] ? kobject_put+0xbb/0xd0
[ 35.853549][ T435] kasan_report+0xca/0x100
[ 35.853556][ T435] ? kobject_put+0xbb/0xd0
[ 35.853565][ T435] kobject_put+0xbb/0xd0
[ 35.853571][ T435] netdev_run_todo+0x5f0/0xc60
[ 35.853579][ T435] ? dev_ingress_queue_create+0x190/0x190
[ 35.853585][ T435] ? generic_xdp_install+0x410/0x410
[ 35.853592][ T435] ? vrf_dellink+0xff/0x150 [vrf]
[ 35.853603][ T435] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 35.853612][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.853626][ T435] rtnl_dellink+0x350/0xa30
[ 35.853635][ T435] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 35.853672][ T435] ? find_held_lock+0x2b/0x80
[ 35.853680][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.853691][ T435] ? find_held_lock+0x2b/0x80
[ 35.853697][ T435] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 35.853701][ T435] ? __lock_release+0x5d/0x170
[ 35.853708][ T435] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 35.853714][ T435] rtnetlink_rcv_msg+0x709/0xc00
[ 35.853721][ T435] ? rtnl_port_fill+0x850/0x850
[ 35.853726][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.853738][ T435] netlink_rcv_skb+0x121/0x340
[ 35.853745][ T435] ? rtnl_port_fill+0x850/0x850
[ 35.853751][ T435] ? netlink_ack+0xdd0/0xdd0
[ 35.853764][ T435] ? netlink_deliver_tap+0x13e/0x340
[ 35.853769][ T435] ? netlink_deliver_tap+0xc3/0x340
[ 35.853775][ T435] netlink_unicast+0x4aa/0x780
[ 35.853783][ T435] ? netlink_attachskb+0x810/0x810
[ 35.853790][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.853798][ T435] netlink_sendmsg+0x714/0xbd0
[ 35.853807][ T435] ? netlink_unicast+0x780/0x780
[ 35.853813][ T435] ? __import_iovec+0x230/0x3b0
[ 35.853824][ T435] ? netlink_unicast+0x780/0x780
[ 35.853830][ T435] ____sys_sendmsg+0x3dd/0x890
[ 35.853841][ T435] ? get_timestamp.constprop.0+0x380/0x380
[ 35.853846][ T435] ? __copy_msghdr+0x3c0/0x3c0
[ 35.853861][ T435] ___sys_sendmsg+0xed/0x170
[ 35.853866][ T435] ? kasan_record_aux_stack+0x8c/0xa0
[ 35.853871][ T435] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 35.853882][ T435] ? copy_msghdr_from_user+0x110/0x110
[ 35.853890][ T435] ? find_held_lock+0x2b/0x80
[ 35.853897][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.853906][ T435] ? find_held_lock+0x2b/0x80
[ 35.853911][ T435] ? __virt_addr_valid+0x22a/0x450
[ 35.853919][ T435] ? __lock_release+0x5d/0x170
[ 35.853930][ T435] __sys_sendmsg+0x10b/0x1a0
[ 35.853935][ T435] ? __call_rcu_common.constprop.0+0x318/0x630
[ 35.853941][ T435] ? __sys_sendmsg_sock+0x20/0x20
[ 35.853955][ T435] ? rcu_is_watching+0x12/0xb0
[ 35.853962][ T435] do_syscall_64+0xc1/0xfd0
[ 35.853971][ T435] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 35.853978][ T435] RIP: 0033:0x7f98e1e461d7
[ 35.853984][ T435] 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
[ 35.853989][ T435] RSP: 002b:00007ffe790814b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 35.853996][ T435] RAX: ffffffffffffffda RBX: 00007ffe79081be0 RCX: 00007f98e1e461d7
[ 35.854000][ T435] RDX: 0000000000000000 RSI: 00007ffe79081520 RDI: 0000000000000005
[ 35.854003][ T435] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 35.854006][ T435] R10: 00007f98e1d42f60 R11: 0000000000000246 R12: 0000000000000002
[ 35.854008][ T435] R13: 00000000690defa4 R14: 0000000000499600 R15: 0000000000000000
[ 35.854020][ T435]
[ 35.854022][ T435]
[ 35.873810][ T435] Allocated by task 287:
[ 35.874003][ T435] kasan_save_stack+0x24/0x40
[ 35.874281][ T435] kasan_save_track+0x14/0x30
[ 35.874532][ T435] __kasan_kmalloc+0x7b/0x90
[ 35.874796][ T435] __kvmalloc_node_noprof+0x2e5/0x8e0
[ 35.875053][ T435] alloc_netdev_mqs+0x7d/0x1370
[ 35.875319][ T435] rtnl_create_link+0xa9e/0xe20
[ 35.875575][ T435] rtnl_newlink_create+0x203/0x770
[ 35.875830][ T435] __rtnl_newlink+0x231/0xa30
[ 35.876066][ T435] rtnl_newlink+0x693/0xa60
[ 35.876324][ T435] rtnetlink_rcv_msg+0x709/0xc00
[ 35.876610][ T435] netlink_rcv_skb+0x121/0x340
[ 35.876887][ T435] netlink_unicast+0x4aa/0x780
[ 35.877147][ T435] netlink_sendmsg+0x714/0xbd0
[ 35.877419][ T435] ____sys_sendmsg+0x3dd/0x890
[ 35.877697][ T435] ___sys_sendmsg+0xed/0x170
[ 35.877972][ T435] __sys_sendmsg+0x10b/0x1a0
[ 35.878236][ T435] do_syscall_64+0xc1/0xfd0
[ 35.878511][ T435] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 35.878829][ T435]
[ 35.878960][ T435] Freed by task 435:
[ 35.879158][ T435] kasan_save_stack+0x24/0x40
[ 35.879422][ T435] kasan_save_track+0x14/0x30
[ 35.879675][ T435] __kasan_save_free_info+0x3b/0x60
[ 35.879943][ T435] __kasan_slab_free+0x3f/0x60
[ 35.880201][ T435] kfree+0x21d/0x540
[ 35.880393][ T435] device_release+0x9c/0x210
[ 35.880655][ T435] kobject_cleanup+0xfe/0x360
[ 35.880924][ T435] netdev_run_todo+0x81f/0xc60
[ 35.881227][ T435] rtnl_dellink+0x350/0xa30
[ 35.881504][ T435] rtnetlink_rcv_msg+0x709/0xc00
[ 35.881752][ T435] netlink_rcv_skb+0x121/0x340
[ 35.882014][ T435] netlink_unicast+0x4aa/0x780
[ 35.882260][ T435] netlink_sendmsg+0x714/0xbd0
[ 35.882513][ T435] ____sys_sendmsg+0x3dd/0x890
[ 35.882793][ T435] ___sys_sendmsg+0xed/0x170
[ 35.883069][ T435] __sys_sendmsg+0x10b/0x1a0
[ 35.883323][ T435] do_syscall_64+0xc1/0xfd0
[ 35.883588][ T435] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 35.883929][ T435]
[ 35.884063][ T435] The buggy address belongs to the object at ffff8880058f9000
[ 35.884063][ T435] which belongs to the cache kmalloc-4k of size 4096
[ 35.884697][ T435] The buggy address is located 1708 bytes inside of
[ 35.884697][ T435] freed 4096-byte region [ffff8880058f9000, ffff8880058fa000)
[ 35.885355][ T435]
[ 35.885497][ T435] The buggy address belongs to the physical page:
[ 35.885837][ T435] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x58f8
[ 35.886339][ T435] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
[ 35.886775][ T435] flags: 0x80000000000040(head|node=0|zone=1)
[ 35.887167][ T435] page_type: f5(slab)
[ 35.887390][ T435] raw: 0080000000000040 ffff888001043700 ffffea000021f610 ffffea000020f610
[ 35.887908][ T435] raw: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 35.888340][ T435] head: 0080000000000040 ffff888001043700 ffffea000021f610 ffffea000020f610
[ 35.888646][ T435] head: 0000000000000000 0000000000020002 00000000f5000000 0000000000000000
[ 35.888940][ T435] head: 0080000000000003 ffffea0000163e01 00000000ffffffff 00000000ffffffff
[ 35.889241][ T435] head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
[ 35.889536][ T435] page dumped because: kasan: bad access detected
[ 35.889742][ T435]
[ 35.889834][ T435] Memory state around the buggy address:
[ 35.889994][ T435] ffff8880058f9580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.890261][ T435] ffff8880058f9600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.890665][ T435] >ffff8880058f9680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.890996][ T435] ^
[ 35.891265][ T435] ffff8880058f9700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.891616][ T435] ffff8880058f9780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 35.892002][ T435] ==================================================================
[ 35.892676][ T435] Disabling lock debugging due to kernel taint
[ 35.893047][ T435] ------------[ cut here ]------------
[ 35.893278][ T435] refcount_t: underflow; use-after-free.
[ 35.893541][ T435] WARNING: CPU: 3 PID: 435 at lib/refcount.c:28 refcount_warn_saturate+0x16f/0x1b0
[ 35.894024][ T435] Modules linked in: act_gact cls_flower sch_ingress vrf veth
[ 35.894418][ T435] CPU: 3 UID: 0 PID: 435 Comm: ip Tainted: G B 6.18.0-rc4-virtme #1 PREEMPT(full)
[ 35.894925][ T435] Tainted: [B]=BAD_PAGE
[ 35.895135][ T435] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.895463][ T435] RIP: 0010:refcount_warn_saturate+0x16f/0x1b0
[ 35.895825][ T435] 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 b8 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
[ 35.896837][ T435] RSP: 0018:ffffc90000c171f0 EFLAGS: 00010286
[ 35.897184][ T435] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 35.897589][ T435] RDX: 0000000000000002 RSI: 0000000000000004 RDI: 0000000000000001
[ 35.897987][ T435] RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff727e134
[ 35.898396][ T435] R10: 0000000000000003 R11: ffffc90000c16d80 R12: 0000000000000001
[ 35.898805][ T435] R13: dffffc0000000000 R14: dead000000000122 R15: dead000000000100
[ 35.899207][ T435] FS: 00007f98e1c78800(0000) GS:ffff88807bb72000(0000) knlGS:0000000000000000
[ 35.899681][ T435] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 35.900019][ T435] CR2: 00007fa43f2b5000 CR3: 00000000107f3005 CR4: 0000000000772ef0
[ 35.900433][ T435] PKRU: 55555554
[ 35.900643][ T435] Call Trace:
[ 35.900845][ T435]
[ 35.900988][ T435] netdev_run_todo+0x5f0/0xc60
[ 35.901271][ T435] ? dev_ingress_queue_create+0x190/0x190
[ 35.901540][ T435] ? generic_xdp_install+0x410/0x410
[ 35.901819][ T435] ? vrf_dellink+0xff/0x150 [vrf]
[ 35.902089][ T435] ? vrf_map_unregister_dev+0x480/0x480 [vrf]
[ 35.902432][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.902730][ T435] rtnl_dellink+0x350/0xa30
[ 35.902999][ T435] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 35.903358][ T435] ? find_held_lock+0x2b/0x80
[ 35.903638][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.903909][ T435] ? find_held_lock+0x2b/0x80
[ 35.904178][ T435] ? rtnetlink_rcv_msg+0x6e6/0xc00
[ 35.904451][ T435] ? __lock_release+0x5d/0x170
[ 35.904695][ T435] ? valid_bridge_getlink_req.constprop.0+0x640/0x640
[ 35.904997][ T435] rtnetlink_rcv_msg+0x709/0xc00
[ 35.905248][ T435] ? rtnl_port_fill+0x850/0x850
[ 35.905451][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.905644][ T435] netlink_rcv_skb+0x121/0x340
[ 35.905812][ T435] ? rtnl_port_fill+0x850/0x850
[ 35.905980][ T435] ? netlink_ack+0xdd0/0xdd0
[ 35.906147][ T435] ? netlink_deliver_tap+0x13e/0x340
[ 35.906331][ T435] ? netlink_deliver_tap+0xc3/0x340
[ 35.906553][ T435] netlink_unicast+0x4aa/0x780
[ 35.906750][ T435] ? netlink_attachskb+0x810/0x810
[ 35.906922][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.907104][ T435] netlink_sendmsg+0x714/0xbd0
[ 35.907287][ T435] ? netlink_unicast+0x780/0x780
[ 35.907461][ T435] ? __import_iovec+0x230/0x3b0
[ 35.907654][ T435] ? netlink_unicast+0x780/0x780
[ 35.907833][ T435] ____sys_sendmsg+0x3dd/0x890
[ 35.908009][ T435] ? get_timestamp.constprop.0+0x380/0x380
[ 35.908233][ T435] ? __copy_msghdr+0x3c0/0x3c0
[ 35.908421][ T435] ___sys_sendmsg+0xed/0x170
[ 35.908606][ T435] ? kasan_record_aux_stack+0x8c/0xa0
[ 35.908776][ T435] ? __call_rcu_common.constprop.0+0xa8/0x630
[ 35.908978][ T435] ? copy_msghdr_from_user+0x110/0x110
[ 35.909141][ T435] ? find_held_lock+0x2b/0x80
[ 35.909303][ T435] ? __lock_acquire+0x449/0x7e0
[ 35.909463][ T435] ? find_held_lock+0x2b/0x80
[ 35.909640][ T435] ? __virt_addr_valid+0x22a/0x450
[ 35.909804][ T435] ? __lock_release+0x5d/0x170
[ 35.909976][ T435] __sys_sendmsg+0x10b/0x1a0
[ 35.910149][ T435] ? __call_rcu_common.constprop.0+0x318/0x630
[ 35.910352][ T435] ? __sys_sendmsg_sock+0x20/0x20
[ 35.910516][ T435] ? rcu_is_watching+0x12/0xb0
[ 35.910699][ T435] do_syscall_64+0xc1/0xfd0
[ 35.910863][ T435] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 35.911073][ T435] RIP: 0033:0x7f98e1e461d7
[ 35.911247][ T435] 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
[ 35.911838][ T435] RSP: 002b:00007ffe790814b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[ 35.912098][ T435] RAX: ffffffffffffffda RBX: 00007ffe79081be0 RCX: 00007f98e1e461d7
[ 35.912345][ T435] RDX: 0000000000000000 RSI: 00007ffe79081520 RDI: 0000000000000005
[ 35.912610][ T435] RBP: 0000000000000002 R08: 0000000000000003 R09: 0000000000000078
[ 35.912902][ T435] R10: 00007f98e1d42f60 R11: 0000000000000246 R12: 0000000000000002
[ 35.913189][ T435] R13: 00000000690defa4 R14: 0000000000499600 R15: 0000000000000000
[ 35.913436][ T435]
[ 35.913582][ T435] irq event stamp: 48245
[ 35.913711][ T435] hardirqs last enabled at (48245): [] finish_task_switch.isra.0+0x245/0x960
[ 35.914029][ T435] hardirqs last disabled at (48244): [] __schedule+0x94a/0x1b10
[ 35.914314][ T435] softirqs last enabled at (48070): [] handle_softirqs+0x352/0x610
[ 35.914615][ T435] softirqs last disabled at (48063): [] irq_exit_rcu+0xab/0x100
[ 35.914900][ T435] ---[ end trace 0000000000000000 ]---